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  • 6 Bq m-2, respectively. The flux of dissolved 90Sr wash-off from the forest was estimated as 45.1 Bq m-2. The distribution coefficient, which indicates the dissolved-particulate form of radionuclides, in the post-fire site was 30 times higher than that in the forest site, indicating the importance of particulate 137Cs wash-off after fire in the CEZ. The entrainment coefficients for dissolved and particulate 137Cs concentrations were around 50 times lower than those obtained in the corresponding position within the CEZ immediately after the accident in 1987. The effect of downward migration of 137Cs over 30 years led to decreased entrainment coefficients for dissolved and particulate 137Cs. The effect of downward migration of radionuclides was considered sufficient to indicate changes in normalized liquid and solid radionuclides wash-off entrainment coefficient and the distribution coefficient in this study. Silver nanoparticles (AgNP) are commonly used in medical, cosmetics, clothing, and industrial applications for their antibacterial and catalytic properties. As AgNP become more prevalent, the doses to which humans are exposed may increase and pose health risks, particularly through incidental inhalation. This exposure was evaluated through in-vitro methods simulating lung fluids and lung epithelium, and through computational fluid dynamics (CFD) methods of AgNP transport. A high-dose scenario simulated a short-term inhalation of 10 μg AgNP/m3, based on an exposure limit recommended by the National Institute of Occupational Safety and Health for the case of a health-care worker who handles AgNP-infused wound dressings, and regularly wears AgNP-imbedded clothing. Bioaccessibility tests were followed by a Parallel Artificial Membrane Permeability Assay (PAMPA) and supported by CFD models of the lung alveoli, membrane, pores, and blood capillaries. Results indicate that such exposure produces an average and maximum AgNP flux of approximately 4.7 × 10-21 and 6.5 × 10-19 mol m-2·s-1 through lung tissue, respectively, yielding a blood-silver accumulation of 0.46-64 mg per year, which may exceed the lowest adverse effect level of 25 mg for an adult male. Results from in-silico simulations were consistent with values estimated in vitro (within an order of magnitude), which suggest that CFD models may be used effectively to predict silver exposure from inhaled AgNP. Although the average short-term exposure concentrations are 3 orders of magnitude smaller than the reported threshold for mammalian cytotoxicity effects (observed at 5000 ppb), cumulative effects resulting from constant exposure to AgNP may pose risks to human health in the long-term, with predicted bioaccumulation reaching potential toxic effects after only five months of exposure, based on maximum flux. Amphiboles are common rock-forming minerals but when they form asbestos, they are known carcinogens. Mesothelioma mortality among miners and millers per the unit of asbestiform amphibole exposure varies significantly across cohorts when asbestos exposure measurements are based on the membrane filter method. Because the cohorts were exposed to different occurrences of asbestiform amphibole, variance in mesothelioma potency (RM ) among cohorts is likely due to differences in exposure characteristics not reflected by the membrane filter method. In this paper using both linear and nonlinear models we correlate RM from four mining and milling cohorts with two-dimensional parameters of the exposure. The parameters are based on the proportion of elongated minerals that are >5 μm in length from each occurrence that also have either (a) width ≤ 0.15 μm, or (b) width ≤ 0.25 μm. Based on the models we derived, it was possible to quantify RM for the occurrences of asbestiform amphibole associated with mesothelioma excess but for which epidemiologically based RM has not been published. It was demonstrated that modeled RM for amphibole occurrences in nonasbestiform habits are lower (fibrous glaucophane) or not significant (cleavage fragments). The results of the study can be used in a risk assessment of elongated mineral particles and have implications for public policy and regulations. © 2020 John Wiley & Sons, Ltd.BACKGROUND Low anterior resection syndrome (LARS) is pragmatically defined as disordered bowel function after rectal resection leading to a detriment in quality of life. This broad characterization does not allow for precise estimates of prevalence. The LARS score was designed as a simple tool for clinical evaluation of LARS. Although the LARS score has good clinical utility, it may not capture all important aspects that patients may experience. The aim of this collaboration was to develop an international consensus definition of LARS that encompasses all aspects of the condition and is informed by all stakeholders. METHODS This international patient-provider initiative used an online Delphi survey, regional patient consultation meetings and an international consensus meeting. Three expert groups participated patients, surgeons and other health professionals from five regions (Australasia, Denmark, Spain, Great Britain and Ireland, and North America) and in three languages (English, Spanish and Danish). The p sensitivity to detect changes in LARS over time and with intervention. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Society of Colon and Rectal Surgeons, by John Wiley & Sons Limited on behalf of the Association of Coloproctology of Great Britain and Ireland and by John Wiley & Sons Australia on behalf of the Royal Australasian College of Surgeons.BACKGROUND Family-centred rounds (FCRs) are common in paediatric inpatient medicine. FCRs lead to shorter hospital stays, improved communication, and improved patient and family satisfaction. Rounding structures can differ between institutions based on participants, the location of rounds and the role of trainees. The aim of our study was to compare walking hallway rounds with a new conference-room rounding style, as measured by learner perceptions of FCRs. METHODS All students participating in FCRs on two hospitalist teams were included in this study. In October 2017, a family-centred conference-room rounding model was developed. Team A adopted conference-room rounds whereas team B continued to use hallway rounds. Student and resident evaluations were constructed using a nine-point Likert scale (1, strongly disagree; 9, strongly agree). Evaluations assessed various perceived components of rounding. https://www.selleckchem.com/products/icarm1.html RESULTS There were statistically significant differences between the evaluation responses from student team A (n = 21) versus student team B (n = 32) regarding perceived comfort in presenting (A = 7.
    6 Bq m-2, respectively. The flux of dissolved 90Sr wash-off from the forest was estimated as 45.1 Bq m-2. The distribution coefficient, which indicates the dissolved-particulate form of radionuclides, in the post-fire site was 30 times higher than that in the forest site, indicating the importance of particulate 137Cs wash-off after fire in the CEZ. The entrainment coefficients for dissolved and particulate 137Cs concentrations were around 50 times lower than those obtained in the corresponding position within the CEZ immediately after the accident in 1987. The effect of downward migration of 137Cs over 30 years led to decreased entrainment coefficients for dissolved and particulate 137Cs. The effect of downward migration of radionuclides was considered sufficient to indicate changes in normalized liquid and solid radionuclides wash-off entrainment coefficient and the distribution coefficient in this study. Silver nanoparticles (AgNP) are commonly used in medical, cosmetics, clothing, and industrial applications for their antibacterial and catalytic properties. As AgNP become more prevalent, the doses to which humans are exposed may increase and pose health risks, particularly through incidental inhalation. This exposure was evaluated through in-vitro methods simulating lung fluids and lung epithelium, and through computational fluid dynamics (CFD) methods of AgNP transport. A high-dose scenario simulated a short-term inhalation of 10 μg AgNP/m3, based on an exposure limit recommended by the National Institute of Occupational Safety and Health for the case of a health-care worker who handles AgNP-infused wound dressings, and regularly wears AgNP-imbedded clothing. Bioaccessibility tests were followed by a Parallel Artificial Membrane Permeability Assay (PAMPA) and supported by CFD models of the lung alveoli, membrane, pores, and blood capillaries. Results indicate that such exposure produces an average and maximum AgNP flux of approximately 4.7 × 10-21 and 6.5 × 10-19 mol m-2·s-1 through lung tissue, respectively, yielding a blood-silver accumulation of 0.46-64 mg per year, which may exceed the lowest adverse effect level of 25 mg for an adult male. Results from in-silico simulations were consistent with values estimated in vitro (within an order of magnitude), which suggest that CFD models may be used effectively to predict silver exposure from inhaled AgNP. Although the average short-term exposure concentrations are 3 orders of magnitude smaller than the reported threshold for mammalian cytotoxicity effects (observed at 5000 ppb), cumulative effects resulting from constant exposure to AgNP may pose risks to human health in the long-term, with predicted bioaccumulation reaching potential toxic effects after only five months of exposure, based on maximum flux. Amphiboles are common rock-forming minerals but when they form asbestos, they are known carcinogens. Mesothelioma mortality among miners and millers per the unit of asbestiform amphibole exposure varies significantly across cohorts when asbestos exposure measurements are based on the membrane filter method. Because the cohorts were exposed to different occurrences of asbestiform amphibole, variance in mesothelioma potency (RM ) among cohorts is likely due to differences in exposure characteristics not reflected by the membrane filter method. In this paper using both linear and nonlinear models we correlate RM from four mining and milling cohorts with two-dimensional parameters of the exposure. The parameters are based on the proportion of elongated minerals that are >5 μm in length from each occurrence that also have either (a) width ≤ 0.15 μm, or (b) width ≤ 0.25 μm. Based on the models we derived, it was possible to quantify RM for the occurrences of asbestiform amphibole associated with mesothelioma excess but for which epidemiologically based RM has not been published. It was demonstrated that modeled RM for amphibole occurrences in nonasbestiform habits are lower (fibrous glaucophane) or not significant (cleavage fragments). The results of the study can be used in a risk assessment of elongated mineral particles and have implications for public policy and regulations. © 2020 John Wiley & Sons, Ltd.BACKGROUND Low anterior resection syndrome (LARS) is pragmatically defined as disordered bowel function after rectal resection leading to a detriment in quality of life. This broad characterization does not allow for precise estimates of prevalence. The LARS score was designed as a simple tool for clinical evaluation of LARS. Although the LARS score has good clinical utility, it may not capture all important aspects that patients may experience. The aim of this collaboration was to develop an international consensus definition of LARS that encompasses all aspects of the condition and is informed by all stakeholders. METHODS This international patient-provider initiative used an online Delphi survey, regional patient consultation meetings and an international consensus meeting. Three expert groups participated patients, surgeons and other health professionals from five regions (Australasia, Denmark, Spain, Great Britain and Ireland, and North America) and in three languages (English, Spanish and Danish). The p sensitivity to detect changes in LARS over time and with intervention. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Society of Colon and Rectal Surgeons, by John Wiley & Sons Limited on behalf of the Association of Coloproctology of Great Britain and Ireland and by John Wiley & Sons Australia on behalf of the Royal Australasian College of Surgeons.BACKGROUND Family-centred rounds (FCRs) are common in paediatric inpatient medicine. FCRs lead to shorter hospital stays, improved communication, and improved patient and family satisfaction. Rounding structures can differ between institutions based on participants, the location of rounds and the role of trainees. The aim of our study was to compare walking hallway rounds with a new conference-room rounding style, as measured by learner perceptions of FCRs. METHODS All students participating in FCRs on two hospitalist teams were included in this study. In October 2017, a family-centred conference-room rounding model was developed. Team A adopted conference-room rounds whereas team B continued to use hallway rounds. Student and resident evaluations were constructed using a nine-point Likert scale (1, strongly disagree; 9, strongly agree). Evaluations assessed various perceived components of rounding. https://www.selleckchem.com/products/icarm1.html RESULTS There were statistically significant differences between the evaluation responses from student team A (n = 21) versus student team B (n = 32) regarding perceived comfort in presenting (A = 7.
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  • Pressure reactivity index (PRx) and brain tissue oxygen (PbtO2) are associated with outcome in TBI. This study explores the relationship between PRx and PbtO2 in adult moderate/severe TBI. Using the Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) high resolution ICU sub-study cohort, we evaluated those patients with archived high-frequency digital intra-parenchymal ICP and PbtO2 monitoring data of a minimum of 6 hours in duration, and the presence of a 6 month Glasgow Outcome Scale -Extended (GOSE) score. Digital physiologic signals were processed for ICP, PbtO2 and pressure reactivity index (PRx), with the % time above/below defined thresholds determined. The duration of ICP, PbtO2 and PRx derangements was characterised. Associations with dichotomized 6-month GOSE (alive/dead, and favourable/unfavourable outcome; 4 or less = unfavourable), were assessed. A total of 43 patients were included. Severely impaired cerebrovascular reactivity was seen during elevatedygen, ICP, physiologic burden.Traumatic brain injury (TBI) is a leading cause of death and disability in people under 45. The hallmark secondary injury profile after TBI involves dynamic interactions between inflammatory and metabolic pathways including fatty acids. Omega-3 polyunsaturated fatty acids (PUFAs) such as docosahexaenoic acid (DHA) have been shown to provide neuroprotective benefits by minimizing neuroinflammation in rodents. However, these effects have been less conclusive in humans. We postulate genetic variants influencing PUFA metabolism in humans could contribute to these disparate findings. Therefore, we sought to (1) characterize the circulating PUFA response and (2) evaluate the impact of rs174537 on inflammation following TBI. A prospective, single-center, observational pilot study was conducted to collect blood samples from Level-1 trauma patients (N=130) on admission and 24 hours post-admission. Plasma was used to quantify PUFA levels and inflammatory cytokines. DNA was extracted and genotyped at rs174537. Associations between PUFAs and inflammatory cytokines were analyzed for all trauma cases and stratified by race (Caucasians only), TBI (TBI N=47; non-TBI=83) and rs174537 genotype (GG N=33, GT/TT N=44). TBI patients had higher plasma DHA levels compared to non-TBI at 24hrs post injury (p=0.013). The SNP rs174537 was associated with both PUFA levels and inflammatory cytokines (p less then 0.05). Specifically, TBI patients with GG genotype exhibited the highest plasma levels of DHA (1.33%) and IL-8 (121.5±43.3 pg/ml), which were in turn associated with poorer outcomes. These data illustrate the impact of rs174537 on the post-TBI response. https://www.selleckchem.com/products/durvalumab.html Further work is needed to ascertain how this genetic variant directly influences inflammation following trauma.There is a need to improve the quality of donor liver from donation after circulatory death (DCD). The purpose of this study was to investigate the effects and mechanism of normothermic machine perfusion (NMP) combined with bone marrow mesenchymal stem cells (BMMSCs) on the oxidative stress and mitochondrial function in DCD livers. DCD livers were obtained, a rat NMP system was established, and BMMSCs were extracted and identified. The DCD livers were grouped by their preservation method Normal, static cold storage (SCS), NMP (P), and NMP combined with BMMSCs (PB), and the preservation time was up to 8 h. An IAR20 cell oxidative stress injury model was established in vitro by simulating DCD oxidative stress injury, and co-culturing with BMMSCs for 6 h. Compared with SCS group, after 6 h in vitro, the PB and P groups had significantly improved liver function and liver histological damage, reduced hepatocyte apoptosis and oxidative stress, improved hepatocyte mitochondrial damage, and increased mitochondrial membrane potential. These indicators were significantly better in the PB group than in the P group. BMMSCs significantly inhibited reactive oxygen species (ROS) release from the IAR20 cell oxidative stress model in vitro, ameliorated mitochondrial damage, and increased mitochondrial membrane potential level. BMMSCs also downregulated the JNK-NF-κB signaling pathway significantly in the IAR20 cell oxidative stress model and promoted AMPK activation. We verified that NMP combined with BMMSCs also played the same role in the PB group. NMP combined with BMMSCs could improve liver quality by relieving oxidative stress injury and improving mitochondrial function in rat DCD livers. The mechanism of protective role might involve inhibiting the JNK-NF-κB pathway to reduce oxidative stress and promote AMPK activation, thereby reducing mitochondrial damage and increase mitochondrial function.Mycotic aneurysm is a life-threatening disease often caused by Salmonella, Staphylococci and Streptococci species. Interestingly, Escherichia Coli (E. Coli) is described as a rare causative agent. We report the case of a patient who developed a mycotic aortic and ruptured left iliac aneurysm due to E. Coli. The patient developed a secondary aortic graft infection due to a mesenteric ischemia with fecal peritonitis. A literature overview of the current knowledge on mycotic aortic aneurysms specifically due to E. Coli is discussed including the clinical characteristics of patients, the management of the disease and the post-operative outcomes.The present study represents the first empirical investigation of the mechanisms - a Hostile-Helpless (HH) attachment and reflective functioning (RF) - through which childhood abuse and neglect (CA&N) experiences may impact a mother's likelihood to commit filicide. The sample was comprised of 46 mentally ill mothers. Differences in attachment-derived risk variables between filicidal mothers (FM) and non-filicidal mothers (NFM) were also examined. FM (n = 23) reported lower RF, higher HH attachment, and a more severe history of CA&N, compared to NFM (n = 23), but did not differ on the severity of childhood experiences of loss of and/or separation from attachment figures. Bayesian analysis indicated that the mediated effect of more severe CA&N on the likelihood of committing filicide through higher HH attachment was significantly amplified by lower RF. A developmental interpretation of filicide is proposed and clinical implications for prevention and attachment-based interventions with at-risk mother-child dyads are discussed.
    Pressure reactivity index (PRx) and brain tissue oxygen (PbtO2) are associated with outcome in TBI. This study explores the relationship between PRx and PbtO2 in adult moderate/severe TBI. Using the Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) high resolution ICU sub-study cohort, we evaluated those patients with archived high-frequency digital intra-parenchymal ICP and PbtO2 monitoring data of a minimum of 6 hours in duration, and the presence of a 6 month Glasgow Outcome Scale -Extended (GOSE) score. Digital physiologic signals were processed for ICP, PbtO2 and pressure reactivity index (PRx), with the % time above/below defined thresholds determined. The duration of ICP, PbtO2 and PRx derangements was characterised. Associations with dichotomized 6-month GOSE (alive/dead, and favourable/unfavourable outcome; 4 or less = unfavourable), were assessed. A total of 43 patients were included. Severely impaired cerebrovascular reactivity was seen during elevatedygen, ICP, physiologic burden.Traumatic brain injury (TBI) is a leading cause of death and disability in people under 45. The hallmark secondary injury profile after TBI involves dynamic interactions between inflammatory and metabolic pathways including fatty acids. Omega-3 polyunsaturated fatty acids (PUFAs) such as docosahexaenoic acid (DHA) have been shown to provide neuroprotective benefits by minimizing neuroinflammation in rodents. However, these effects have been less conclusive in humans. We postulate genetic variants influencing PUFA metabolism in humans could contribute to these disparate findings. Therefore, we sought to (1) characterize the circulating PUFA response and (2) evaluate the impact of rs174537 on inflammation following TBI. A prospective, single-center, observational pilot study was conducted to collect blood samples from Level-1 trauma patients (N=130) on admission and 24 hours post-admission. Plasma was used to quantify PUFA levels and inflammatory cytokines. DNA was extracted and genotyped at rs174537. Associations between PUFAs and inflammatory cytokines were analyzed for all trauma cases and stratified by race (Caucasians only), TBI (TBI N=47; non-TBI=83) and rs174537 genotype (GG N=33, GT/TT N=44). TBI patients had higher plasma DHA levels compared to non-TBI at 24hrs post injury (p=0.013). The SNP rs174537 was associated with both PUFA levels and inflammatory cytokines (p less then 0.05). Specifically, TBI patients with GG genotype exhibited the highest plasma levels of DHA (1.33%) and IL-8 (121.5±43.3 pg/ml), which were in turn associated with poorer outcomes. These data illustrate the impact of rs174537 on the post-TBI response. https://www.selleckchem.com/products/durvalumab.html Further work is needed to ascertain how this genetic variant directly influences inflammation following trauma.There is a need to improve the quality of donor liver from donation after circulatory death (DCD). The purpose of this study was to investigate the effects and mechanism of normothermic machine perfusion (NMP) combined with bone marrow mesenchymal stem cells (BMMSCs) on the oxidative stress and mitochondrial function in DCD livers. DCD livers were obtained, a rat NMP system was established, and BMMSCs were extracted and identified. The DCD livers were grouped by their preservation method Normal, static cold storage (SCS), NMP (P), and NMP combined with BMMSCs (PB), and the preservation time was up to 8 h. An IAR20 cell oxidative stress injury model was established in vitro by simulating DCD oxidative stress injury, and co-culturing with BMMSCs for 6 h. Compared with SCS group, after 6 h in vitro, the PB and P groups had significantly improved liver function and liver histological damage, reduced hepatocyte apoptosis and oxidative stress, improved hepatocyte mitochondrial damage, and increased mitochondrial membrane potential. These indicators were significantly better in the PB group than in the P group. BMMSCs significantly inhibited reactive oxygen species (ROS) release from the IAR20 cell oxidative stress model in vitro, ameliorated mitochondrial damage, and increased mitochondrial membrane potential level. BMMSCs also downregulated the JNK-NF-κB signaling pathway significantly in the IAR20 cell oxidative stress model and promoted AMPK activation. We verified that NMP combined with BMMSCs also played the same role in the PB group. NMP combined with BMMSCs could improve liver quality by relieving oxidative stress injury and improving mitochondrial function in rat DCD livers. The mechanism of protective role might involve inhibiting the JNK-NF-κB pathway to reduce oxidative stress and promote AMPK activation, thereby reducing mitochondrial damage and increase mitochondrial function.Mycotic aneurysm is a life-threatening disease often caused by Salmonella, Staphylococci and Streptococci species. Interestingly, Escherichia Coli (E. Coli) is described as a rare causative agent. We report the case of a patient who developed a mycotic aortic and ruptured left iliac aneurysm due to E. Coli. The patient developed a secondary aortic graft infection due to a mesenteric ischemia with fecal peritonitis. A literature overview of the current knowledge on mycotic aortic aneurysms specifically due to E. Coli is discussed including the clinical characteristics of patients, the management of the disease and the post-operative outcomes.The present study represents the first empirical investigation of the mechanisms - a Hostile-Helpless (HH) attachment and reflective functioning (RF) - through which childhood abuse and neglect (CA&N) experiences may impact a mother's likelihood to commit filicide. The sample was comprised of 46 mentally ill mothers. Differences in attachment-derived risk variables between filicidal mothers (FM) and non-filicidal mothers (NFM) were also examined. FM (n = 23) reported lower RF, higher HH attachment, and a more severe history of CA&N, compared to NFM (n = 23), but did not differ on the severity of childhood experiences of loss of and/or separation from attachment figures. Bayesian analysis indicated that the mediated effect of more severe CA&N on the likelihood of committing filicide through higher HH attachment was significantly amplified by lower RF. A developmental interpretation of filicide is proposed and clinical implications for prevention and attachment-based interventions with at-risk mother-child dyads are discussed.
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  • Caenorhabditis elegans is a free-living animal that is used as a powerful experimental model in biological sciences. The natural habitat of the animal are areas rich in material from rotting plants or fruits being decomposed by a growing number of microorganisms. The ecology of the natural habitat of C. elegans is a complex interactive network involving many species, including numerous types of bacteria, viruses, fungi, slugs, snails, and isopods, among which bacteria play multifaceted roles in the natural history of C. elegans. Under laboratory conditions, C. elegans is routinely cultured in a petri dish filled with solidified agar and seeded with Escherichia coli strain OP50, the latter offering an alternative model to study the interaction between bacteria and host. Because of the clear advantages of generating specific bacterial foods for mechanistic studies in C. elegans, it is important to develop a robust protocol to generate high-quality bacterial foods commensurate with experimental requirements. Based on previous work by us and others, herein we present a protocol on how to generate these optimal bacterial food-based research tools. © 2020 by John Wiley & Sons, Inc. Basic Protocol 1 Preparing concentrated E. coli OP50 Basic Protocol 2 Titrating bacteria concentration Basic Protocol 3 Generating dead bacterial food by heating Basic Protocol 4 Generating dead bacterial food by antibiotics Basic Protocol 5 Feeding C. elegans with bacterial foods in liquid.Experiments that visualize gene expression in intact tissues or organisms are fundamental to studies of gene function. These experiments, called in situ hybridization, require the production of a riboprobe, which is a labeled antisense RNA corresponding to a particular gene. The most commonly used system for visualizing gene expression via in situ hybridization is the incorporation of a digoxigenin label into an in vitro-transcribed RNA probe. After hybridization of the riboprobe to a target mRNA, its location can be detected via a high-affinity α-digoxigenin antibody conjugated to an alkaline-phosphatase enzyme. The article describes the design and production of digoxigenin-labeled riboprobes transcribed in vitro from template DNA (either plasmid or PCR amplicon). These riboprobes are suitable for use in tissue and whole-mount in situ hybridization protocols. © 2020 by John Wiley & Sons, Inc. Basic Protocol 1 Plasmid-derived riboprobes Alternate Protocol PCR-derived riboprobes Basic Protocol 2 Riboprobe synthesis with DIG label.Cornelia de Lange spectrum (CdLSp) is a rare genetic condition characterized by intellectual disability, facial dysmorphisms, major malformations, growth impairment, and development delay. Approximately 80% of CdLSp patients have gastroesophageal reflux disease (GERD) with a varied clinical presentation. The aim of this study is to define potential clinical/genetic risk factors based on the clinical phenotype description of CdLSp patients with severe GERD who underwent surgical treatment. We retrospectively collected data from 23 CdLSp patients, 13 females and 10 males. Mean age of the patients undergoing surgical treatment was of 4 years. 21/23 (91%) had a molecular characterization, of which 21/21 (100%) had a NIPBL gene mutation, while 2/23 (9%) did not have a genetical characterization, only a clinical diagnosis. Most of our patients presented a moderate-severe severity score (21/23, 91%) with limb malformations evidenced in 10/23 (44%) of our patients and a moderate-severe intellectual disability in 20/23 (87%). Therefore, CdLSp patients harboring NIPBL variants, upper limb malformations and severe psychomotor delay are more likely to suffer from severe GERD, not responsive to proton pump inhibitors treatment. These features should be considered as clinical markers for potentially severe GERD that might require surgical treatment.Hypertension is a risk factor for cardiovascular disease, which is the leading cause of death in the United States. Taxi and for-hire vehicle (FHV) drivers, a largely male, immigrant and medically underserved population, are at increased risk of cardiovascular disease, in part due to the nature of their work. This study examined demographic and lifestyle predictors of hypertension diagnosis awareness, objectively measured blood pressure (hypertensive-range vs non-hypertensive-range readings), medication use, and hypertension control. A cross-sectional assessment was conducted with 983 male taxi/FHV drivers who attended health fairs in New York City from 2010 to 2017. https://www.selleckchem.com/products/durvalumab.html Twenty-three percent self-reported a hypertension history and 46% had hypertensive-range BP readings. Approximately, half the drivers lacked health insurance (47%) and a usual care source (46%). Thirty percent did not self-report hypertension and had hypertensive-range BP readings. Medication use was reported by 69% of hypertension-aware drivers, and being older and having health care access (insurance, a usual care source, and seeing a doctor in the past year) was significantly associated with medication use. Hypertension-unaware drivers with hypertensive-range BP readings were less likely to have a usual care source. Over 60% of drivers who were hypertension-aware and on medication had hypertensive-range readings. There is a need for community-based and workplace driver and provider interventions to address BP awareness and management and to provide health care navigation for vulnerable populations such as taxi/FHV vehicle drivers.Coil embolization of the atypical enlarged pulmonary artery/arteriole with visible shunting may improve hypoxemia in patients with hepatopulmonary syndrome (HPS). When used selectively in cases with large shunts, either pre- or post-liver transplantation (LT), it can aid an early recovery and reduce morbidity. We present a case where a large intrapulmonary shunt was embolized preoperatively to improve hypoxemia associated with HPS and enhance post-operative recovery.Background In 2014, the Academy of Nutrition and Dietetics and the American Society for Parenteral and Enteral Nutrition recommended indicators to identify malnutrition in children aged 1 month to 18 years. The purpose of this study was to evaluate current practices and the effectiveness of the consensus statement-recommended pediatric malnutrition indicators. Methods A cross-sectional electronic survey link was posted in the Pediatric Nutrition Practice Group (subscribers = 3160) and Clinical Nutrition Management Practice Group's Pediatric Subunit (subscribers = 177) community discussion boards. Additionally, flyers with the survey link were distributed to registered dietitian nutritionists (RDNs) currently working in pediatrics at the 2018 Food & Nutrition Conference & Expo. Frequencies described participant characteristics, awareness of indicators, and use of indicators. Researchers used the Fisher exact test to determine associations between categorical variables. Results Two hundred eighty-one surveys were included in data analysis.
    Caenorhabditis elegans is a free-living animal that is used as a powerful experimental model in biological sciences. The natural habitat of the animal are areas rich in material from rotting plants or fruits being decomposed by a growing number of microorganisms. The ecology of the natural habitat of C. elegans is a complex interactive network involving many species, including numerous types of bacteria, viruses, fungi, slugs, snails, and isopods, among which bacteria play multifaceted roles in the natural history of C. elegans. Under laboratory conditions, C. elegans is routinely cultured in a petri dish filled with solidified agar and seeded with Escherichia coli strain OP50, the latter offering an alternative model to study the interaction between bacteria and host. Because of the clear advantages of generating specific bacterial foods for mechanistic studies in C. elegans, it is important to develop a robust protocol to generate high-quality bacterial foods commensurate with experimental requirements. Based on previous work by us and others, herein we present a protocol on how to generate these optimal bacterial food-based research tools. © 2020 by John Wiley & Sons, Inc. Basic Protocol 1 Preparing concentrated E. coli OP50 Basic Protocol 2 Titrating bacteria concentration Basic Protocol 3 Generating dead bacterial food by heating Basic Protocol 4 Generating dead bacterial food by antibiotics Basic Protocol 5 Feeding C. elegans with bacterial foods in liquid.Experiments that visualize gene expression in intact tissues or organisms are fundamental to studies of gene function. These experiments, called in situ hybridization, require the production of a riboprobe, which is a labeled antisense RNA corresponding to a particular gene. The most commonly used system for visualizing gene expression via in situ hybridization is the incorporation of a digoxigenin label into an in vitro-transcribed RNA probe. After hybridization of the riboprobe to a target mRNA, its location can be detected via a high-affinity α-digoxigenin antibody conjugated to an alkaline-phosphatase enzyme. The article describes the design and production of digoxigenin-labeled riboprobes transcribed in vitro from template DNA (either plasmid or PCR amplicon). These riboprobes are suitable for use in tissue and whole-mount in situ hybridization protocols. © 2020 by John Wiley & Sons, Inc. Basic Protocol 1 Plasmid-derived riboprobes Alternate Protocol PCR-derived riboprobes Basic Protocol 2 Riboprobe synthesis with DIG label.Cornelia de Lange spectrum (CdLSp) is a rare genetic condition characterized by intellectual disability, facial dysmorphisms, major malformations, growth impairment, and development delay. Approximately 80% of CdLSp patients have gastroesophageal reflux disease (GERD) with a varied clinical presentation. The aim of this study is to define potential clinical/genetic risk factors based on the clinical phenotype description of CdLSp patients with severe GERD who underwent surgical treatment. We retrospectively collected data from 23 CdLSp patients, 13 females and 10 males. Mean age of the patients undergoing surgical treatment was of 4 years. 21/23 (91%) had a molecular characterization, of which 21/21 (100%) had a NIPBL gene mutation, while 2/23 (9%) did not have a genetical characterization, only a clinical diagnosis. Most of our patients presented a moderate-severe severity score (21/23, 91%) with limb malformations evidenced in 10/23 (44%) of our patients and a moderate-severe intellectual disability in 20/23 (87%). Therefore, CdLSp patients harboring NIPBL variants, upper limb malformations and severe psychomotor delay are more likely to suffer from severe GERD, not responsive to proton pump inhibitors treatment. These features should be considered as clinical markers for potentially severe GERD that might require surgical treatment.Hypertension is a risk factor for cardiovascular disease, which is the leading cause of death in the United States. Taxi and for-hire vehicle (FHV) drivers, a largely male, immigrant and medically underserved population, are at increased risk of cardiovascular disease, in part due to the nature of their work. This study examined demographic and lifestyle predictors of hypertension diagnosis awareness, objectively measured blood pressure (hypertensive-range vs non-hypertensive-range readings), medication use, and hypertension control. A cross-sectional assessment was conducted with 983 male taxi/FHV drivers who attended health fairs in New York City from 2010 to 2017. https://www.selleckchem.com/products/durvalumab.html Twenty-three percent self-reported a hypertension history and 46% had hypertensive-range BP readings. Approximately, half the drivers lacked health insurance (47%) and a usual care source (46%). Thirty percent did not self-report hypertension and had hypertensive-range BP readings. Medication use was reported by 69% of hypertension-aware drivers, and being older and having health care access (insurance, a usual care source, and seeing a doctor in the past year) was significantly associated with medication use. Hypertension-unaware drivers with hypertensive-range BP readings were less likely to have a usual care source. Over 60% of drivers who were hypertension-aware and on medication had hypertensive-range readings. There is a need for community-based and workplace driver and provider interventions to address BP awareness and management and to provide health care navigation for vulnerable populations such as taxi/FHV vehicle drivers.Coil embolization of the atypical enlarged pulmonary artery/arteriole with visible shunting may improve hypoxemia in patients with hepatopulmonary syndrome (HPS). When used selectively in cases with large shunts, either pre- or post-liver transplantation (LT), it can aid an early recovery and reduce morbidity. We present a case where a large intrapulmonary shunt was embolized preoperatively to improve hypoxemia associated with HPS and enhance post-operative recovery.Background In 2014, the Academy of Nutrition and Dietetics and the American Society for Parenteral and Enteral Nutrition recommended indicators to identify malnutrition in children aged 1 month to 18 years. The purpose of this study was to evaluate current practices and the effectiveness of the consensus statement-recommended pediatric malnutrition indicators. Methods A cross-sectional electronic survey link was posted in the Pediatric Nutrition Practice Group (subscribers = 3160) and Clinical Nutrition Management Practice Group's Pediatric Subunit (subscribers = 177) community discussion boards. Additionally, flyers with the survey link were distributed to registered dietitian nutritionists (RDNs) currently working in pediatrics at the 2018 Food & Nutrition Conference & Expo. Frequencies described participant characteristics, awareness of indicators, and use of indicators. Researchers used the Fisher exact test to determine associations between categorical variables. Results Two hundred eighty-one surveys were included in data analysis.
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  • Several app-related parameters were evaluated. Patient-related outcome measures were investigated in the test group. RESULTS Test and control groups were similar at baseline except for WSL score. Between T1 and T4, PI and GI decreased significantly in both groups but evolutions were globally similar in both groups. Interestingly, at T3 (12 weeks), the PI was significantly lower in the app group than in the control group (P = 0.014). Data showed a marked decline in the use of the app over time in the test group. CONCLUSIONS This trial, conducted over 18 weeks in two academic hospitals, showed no significant effect of the use of the app in promoting oral hygiene. TRIAL REGISTRATION Not registered. © The Author(s) 2020. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For permissions, please email journals.permissions@oup.com.OBJECTIVES While a large body of evidence exists in support of outcomes associated with cumulative dis/advantage (***), individual-level experiences of the systemic processes that generate unequal outcomes have received far less attention. This study explored experiences, among members of an early baby-boom birth cohort, of ***-generative processes within the education and housing systems and the mechanisms by which they interacted with initial social position to perpetuate inequalities. METHODS The author conducted in-depth interviews (n=27) with members of the Newcastle Thousand Families Study, a UK 1947 birth cohort. Longitudinal survey data enabled participant sampling on the basis of gender, occupational social class at birth and age 50, educational attainment and homeownership status at age 60. Qualitative data were analyzed using thematic analysis. RESULTS Analysis identified two themes Firstly, the sorting and funneling mechanisms by which the 'meritocratic' education system interacted with initial social position, progressively narrowing aspirations and opportunities; and secondly, the creation in later life of winners and losers in the property market, resulting in legitimization of inequalities through a deservingness narrative. DISCUSSION *** has proved persistent, even among the supposedly 'lucky' early baby-boom cohort. Policies to ameliorate ***-generation through education and property systems act instead to entrench advantaged social positions. Later-life outcomes can be naturalized as the product of effort-plus-ability if not seen in a whole-life context. Disruption of *** processes requires challenging vested interest inherent in social systems. © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.STUDY OBJECTIVES To investigate the association between weekend catch-up sleep (WCS) and the levels of high-sensitivity C-reactive protein (hsCRP)-a serum inflammatory maker-in adults. METHODS Data of 5,506 adults aged 19 years or older were obtained from the nationwide cross-sectional Korea National Health and Nutrition Examination Surveys conducted in 2016. Serum hsCRP level, weekday and weekend sleep durations, and sociodemographic and health-related characteristics were assessed. Participants whose weekend sleep duration was more than one hour longer than their weekday sleep duration were included in the WCS group. hsCRP level was categorized into quartiles (i.e., highest, middle-high, middle-low, and lowest). Obesity was defined by body mass index ≥ 25.0 kg/m2. RESULTS The WCS group included 1,901 participants (34.5%). In the logistic regression analysis controlling for all variables, adults in the WCS group were significantly less likely to show the highest hsCRP level (versus the lowest level) compared to those without WCS in the complete sample (adjusted odds ratio = 0.795, 95% confidence interval [CI] = 0.662-0.955). In a subgroup analysis, this association was significant only for those with weekday sleep duration of 6 h or lower. Longer WCS (≥3 h) was not associated with hsCRP levels. Non-obese people with WCS demonstrated a lower risk for high hsCRP levels, while there was no significant difference in obese people with WCS. CONCLUSIONS Our findings indicate that WCS may be beneficial for low-grade systemic inflammation in adults, particularly among those with shorter weekday sleep durations. WCS may also interact with obesity. © Sleep Research Society 2020. Published by Oxford University Press on behalf of the Sleep Research Society. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.The ongoing worldwide increase in life expectancy portends a rising prevalence of age-related cardiovascular (CV) diseases in the coming decades that demands a deeper understanding of their molecular mechanisms. Inflammation has recently emerged as an important contributor for CV disease development. Indeed, a state of chronic sterile low-grade inflammation characterizes older organisms (also known as inflamm-ageing) and participates pivotally in the development of frailty, disability, and most chronic degenerative diseases including age-related CV and cerebrovascular afflictions. Due to chronic activation of inflammasomes and to reduced endogenous anti-inflammatory mechanisms, inflamm-ageing contributes to the activation of leucocytes, endothelial, and vascular smooth muscle cells, thus accelerating vascular ageing and atherosclerosis. Furthermore, inflamm-ageing promotes the development of catastrophic athero-thrombotic complications by enhancing platelet reactivity and predisposing to plaque rupture and erosion. Thus, inflamm-ageing and its contributors or molecular mediators might furnish targets for novel therapeutic strategies that could promote healthy ageing and conserve resources for health care systems worldwide. Here, we discuss recent findings in the pathophysiology of inflamm-ageing, the impact of these processes on the development of age-related CV diseases, results from clinical trials targeting its components and the potential implementation of these advances into daily clinical practice. Published on behalf of the European Society of Cardiology. https://www.selleckchem.com/products/r16.html All rights reserved. © The Author(s) 2020. For permissions, please email journals.permissions@oup.com.
    Several app-related parameters were evaluated. Patient-related outcome measures were investigated in the test group. RESULTS Test and control groups were similar at baseline except for WSL score. Between T1 and T4, PI and GI decreased significantly in both groups but evolutions were globally similar in both groups. Interestingly, at T3 (12 weeks), the PI was significantly lower in the app group than in the control group (P = 0.014). Data showed a marked decline in the use of the app over time in the test group. CONCLUSIONS This trial, conducted over 18 weeks in two academic hospitals, showed no significant effect of the use of the app in promoting oral hygiene. TRIAL REGISTRATION Not registered. © The Author(s) 2020. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For permissions, please email journals.permissions@oup.com.OBJECTIVES While a large body of evidence exists in support of outcomes associated with cumulative dis/advantage (CAD), individual-level experiences of the systemic processes that generate unequal outcomes have received far less attention. This study explored experiences, among members of an early baby-boom birth cohort, of CAD-generative processes within the education and housing systems and the mechanisms by which they interacted with initial social position to perpetuate inequalities. METHODS The author conducted in-depth interviews (n=27) with members of the Newcastle Thousand Families Study, a UK 1947 birth cohort. Longitudinal survey data enabled participant sampling on the basis of gender, occupational social class at birth and age 50, educational attainment and homeownership status at age 60. Qualitative data were analyzed using thematic analysis. RESULTS Analysis identified two themes Firstly, the sorting and funneling mechanisms by which the 'meritocratic' education system interacted with initial social position, progressively narrowing aspirations and opportunities; and secondly, the creation in later life of winners and losers in the property market, resulting in legitimization of inequalities through a deservingness narrative. DISCUSSION CAD has proved persistent, even among the supposedly 'lucky' early baby-boom cohort. Policies to ameliorate CAD-generation through education and property systems act instead to entrench advantaged social positions. Later-life outcomes can be naturalized as the product of effort-plus-ability if not seen in a whole-life context. Disruption of CAD processes requires challenging vested interest inherent in social systems. © The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.STUDY OBJECTIVES To investigate the association between weekend catch-up sleep (WCS) and the levels of high-sensitivity C-reactive protein (hsCRP)-a serum inflammatory maker-in adults. METHODS Data of 5,506 adults aged 19 years or older were obtained from the nationwide cross-sectional Korea National Health and Nutrition Examination Surveys conducted in 2016. Serum hsCRP level, weekday and weekend sleep durations, and sociodemographic and health-related characteristics were assessed. Participants whose weekend sleep duration was more than one hour longer than their weekday sleep duration were included in the WCS group. hsCRP level was categorized into quartiles (i.e., highest, middle-high, middle-low, and lowest). Obesity was defined by body mass index ≥ 25.0 kg/m2. RESULTS The WCS group included 1,901 participants (34.5%). In the logistic regression analysis controlling for all variables, adults in the WCS group were significantly less likely to show the highest hsCRP level (versus the lowest level) compared to those without WCS in the complete sample (adjusted odds ratio = 0.795, 95% confidence interval [CI] = 0.662-0.955). In a subgroup analysis, this association was significant only for those with weekday sleep duration of 6 h or lower. Longer WCS (≥3 h) was not associated with hsCRP levels. Non-obese people with WCS demonstrated a lower risk for high hsCRP levels, while there was no significant difference in obese people with WCS. CONCLUSIONS Our findings indicate that WCS may be beneficial for low-grade systemic inflammation in adults, particularly among those with shorter weekday sleep durations. WCS may also interact with obesity. © Sleep Research Society 2020. Published by Oxford University Press on behalf of the Sleep Research Society. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.The ongoing worldwide increase in life expectancy portends a rising prevalence of age-related cardiovascular (CV) diseases in the coming decades that demands a deeper understanding of their molecular mechanisms. Inflammation has recently emerged as an important contributor for CV disease development. Indeed, a state of chronic sterile low-grade inflammation characterizes older organisms (also known as inflamm-ageing) and participates pivotally in the development of frailty, disability, and most chronic degenerative diseases including age-related CV and cerebrovascular afflictions. Due to chronic activation of inflammasomes and to reduced endogenous anti-inflammatory mechanisms, inflamm-ageing contributes to the activation of leucocytes, endothelial, and vascular smooth muscle cells, thus accelerating vascular ageing and atherosclerosis. Furthermore, inflamm-ageing promotes the development of catastrophic athero-thrombotic complications by enhancing platelet reactivity and predisposing to plaque rupture and erosion. Thus, inflamm-ageing and its contributors or molecular mediators might furnish targets for novel therapeutic strategies that could promote healthy ageing and conserve resources for health care systems worldwide. Here, we discuss recent findings in the pathophysiology of inflamm-ageing, the impact of these processes on the development of age-related CV diseases, results from clinical trials targeting its components and the potential implementation of these advances into daily clinical practice. Published on behalf of the European Society of Cardiology. https://www.selleckchem.com/products/r16.html All rights reserved. © The Author(s) 2020. For permissions, please email journals.permissions@oup.com.
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  • Pulsed thermography was exploited to identify the presence of glass defects in order to get an indication of the conservation status of archaeological glass. Indeed, the process of degradation in artifacts subjected to centuries of burial can be of great relevance. More specifically, we evaluated the potential of pulsed thermography to map the presence of flakes in archaeological glass. This was achieved by comparing different heating setups and signal-processing algorithms. Tests were carried out previously on glass mockups with surface defects and then on archaeological artifacts.In the modern world, one-third or more of breast cancer patients still undergo uni- or bilateral mastectomy. Breast cancer patients, in general, have a good prognosis and long-term survival. Therefore, the treatment must not only focus on survival but also on the quality of life. Breast reconstruction with an autologous free deep inferior epigastric artery perforator (DIEP) flap is one of the preferred options after mastectomy. A challenging step in this procedure is the selection of a suitable perforator that provides sufficient blood supply for the flap to prevent necrosis after anastomosis. In this pilot study, the possibilities for dynamic infrared thermography (DIRT) are investigated to select the best suitable perforator. The measurements are done with external cooling in the preoperative stage to accurately predict the location of the dominant perforators. During the surgery, in the peroperative stage, measurements are done for mapping the influence of a specific perforator on the perfused areas of the abdominal flap. Perforators are sequentially closed and opened again to map the influence of that perforator on the vascularization of the flap, visualized with the help of the thermographic camera. The acquired steady-state thermal images could help decide which parts of the abdominal flap to use for the reconstruction so that the chance of (partial) necrosis is reduced. In the postoperative stage, DIRT could visualize the arterial and or venous thrombosis before they become clinically obvious as (partial) necrosis. At present DIRT seems to be a valuable investigation for the pre-, per-, and postoperative phases of DIEP-flap reconstructions. Large, high-quality clinical studies are needed to determine its definitive role.The paper presents electrical and optical properties of interband cascade infrared photodetectors with InAs/GaSb type-II superlattice absorbers. We compare the detection parameters of detectors grown on the native GaSb substrate and lattice-mismatched GaAs substrate and seek solutions to enhance device performance, specifically with using an optical immersion. The detectors grown on GaAs have better detection parameters at room temperature, but, at lower temperatures, the misfit dislocations become more important, and detectors grown on GaSb become better.Bio-fluids are the source of a large number of metabolites. Identification and quantification of them can be an efficient step for understanding the internal chemistry of the body as well as for developing objective diagnostics of diseases. Several techniques have been developed so far; however, their metabolite identification and/or quantification are not reliable enough for acceptance by clinicians. As another promising step in this direction, we push infrared spectroscopy of bio-fluids in gas phase. Here we discuss features of breath and urine headspace realized with Fourier transform infrared spectroscopy. Molecular identification procedures based on component analysis of gas samples are proposed. In this paper, we show that aggregate data from different bio-fluids in gas phase can strengthen the diagnostics of the body state and disease.Thermographic testing is an inspection method that primarily indicates the presence of discontinuities in a tested sample. Its application to coatings can indicate a presence of local thickness variations; however, it mostly does not bring any quantitative information about the thickness of the coatings. This contribution is focused on a quantification of the thermographic inspection, which would make possible an evaluation of coating thickness differences. Flash-pulse thermographic testing was applied to thermally sprayed coatings. The importance of a precise synchronization of flash source and thermographic recording was determined. Different evaluation methods were analyzed, and their comparison showed that a time-power transformation method is the most suitable for quantification of the inspection results.Breast cancer accounts for the highest number of female deaths worldwide. https://www.selleckchem.com/products/baxdrostat.html Early detection of the disease is essential to increase the chances of treatment and cure of patients. Infrared thermography has emerged as a promising technique for diagnosis of the disease due to its low cost and that it does not emit harmful radiation, and it gives good results when applied in young women. This work uses convolutional neural networks in a database of 440 infrared images of 88 patients, classifying them into two classes normal and pathology. During the training of the networks, we use transfer learning of the following convolutional neural network architectures AlexNet, GoogLeNet, ResNet-18, VGG-16, and VGG-19. Our results show the great potential of using deep learning techniques combined with infrared images in the aid of breast cancer diagnosis.We present the design of single-mode fibers for two-stage higher-order soliton compression at 2 µm wavelength and achieve high-degree pulse compression in cascaded single-mode fibers. The compression performance for the initial input pulse width from 1 to 50 ps is also investigated. For the initial third-order soliton of 10 ps, a compression factor of 75.7 has been achieved, and the pedestal energy is only 46.66%.Infrared spectrum analysis technology can perform fast and nondestructive detection of gas and has been widely used in many fields. This work studies the quantitative analysis technology of the infrared spectrum based on deep learning. The experimental results show that the quantitative analysis model of logging gas established here can reach 100% recognition accuracy for elemental gas; further, the accuracy rate of spectral of mixed gas recognition reached 98%, indicating that the infrared spectrum logging gas detection model based on deep learning can quickly and accurately perform quantitative analysis of logging gas.
    Pulsed thermography was exploited to identify the presence of glass defects in order to get an indication of the conservation status of archaeological glass. Indeed, the process of degradation in artifacts subjected to centuries of burial can be of great relevance. More specifically, we evaluated the potential of pulsed thermography to map the presence of flakes in archaeological glass. This was achieved by comparing different heating setups and signal-processing algorithms. Tests were carried out previously on glass mockups with surface defects and then on archaeological artifacts.In the modern world, one-third or more of breast cancer patients still undergo uni- or bilateral mastectomy. Breast cancer patients, in general, have a good prognosis and long-term survival. Therefore, the treatment must not only focus on survival but also on the quality of life. Breast reconstruction with an autologous free deep inferior epigastric artery perforator (DIEP) flap is one of the preferred options after mastectomy. A challenging step in this procedure is the selection of a suitable perforator that provides sufficient blood supply for the flap to prevent necrosis after anastomosis. In this pilot study, the possibilities for dynamic infrared thermography (DIRT) are investigated to select the best suitable perforator. The measurements are done with external cooling in the preoperative stage to accurately predict the location of the dominant perforators. During the surgery, in the peroperative stage, measurements are done for mapping the influence of a specific perforator on the perfused areas of the abdominal flap. Perforators are sequentially closed and opened again to map the influence of that perforator on the vascularization of the flap, visualized with the help of the thermographic camera. The acquired steady-state thermal images could help decide which parts of the abdominal flap to use for the reconstruction so that the chance of (partial) necrosis is reduced. In the postoperative stage, DIRT could visualize the arterial and or venous thrombosis before they become clinically obvious as (partial) necrosis. At present DIRT seems to be a valuable investigation for the pre-, per-, and postoperative phases of DIEP-flap reconstructions. Large, high-quality clinical studies are needed to determine its definitive role.The paper presents electrical and optical properties of interband cascade infrared photodetectors with InAs/GaSb type-II superlattice absorbers. We compare the detection parameters of detectors grown on the native GaSb substrate and lattice-mismatched GaAs substrate and seek solutions to enhance device performance, specifically with using an optical immersion. The detectors grown on GaAs have better detection parameters at room temperature, but, at lower temperatures, the misfit dislocations become more important, and detectors grown on GaSb become better.Bio-fluids are the source of a large number of metabolites. Identification and quantification of them can be an efficient step for understanding the internal chemistry of the body as well as for developing objective diagnostics of diseases. Several techniques have been developed so far; however, their metabolite identification and/or quantification are not reliable enough for acceptance by clinicians. As another promising step in this direction, we push infrared spectroscopy of bio-fluids in gas phase. Here we discuss features of breath and urine headspace realized with Fourier transform infrared spectroscopy. Molecular identification procedures based on component analysis of gas samples are proposed. In this paper, we show that aggregate data from different bio-fluids in gas phase can strengthen the diagnostics of the body state and disease.Thermographic testing is an inspection method that primarily indicates the presence of discontinuities in a tested sample. Its application to coatings can indicate a presence of local thickness variations; however, it mostly does not bring any quantitative information about the thickness of the coatings. This contribution is focused on a quantification of the thermographic inspection, which would make possible an evaluation of coating thickness differences. Flash-pulse thermographic testing was applied to thermally sprayed coatings. The importance of a precise synchronization of flash source and thermographic recording was determined. Different evaluation methods were analyzed, and their comparison showed that a time-power transformation method is the most suitable for quantification of the inspection results.Breast cancer accounts for the highest number of female deaths worldwide. https://www.selleckchem.com/products/baxdrostat.html Early detection of the disease is essential to increase the chances of treatment and cure of patients. Infrared thermography has emerged as a promising technique for diagnosis of the disease due to its low cost and that it does not emit harmful radiation, and it gives good results when applied in young women. This work uses convolutional neural networks in a database of 440 infrared images of 88 patients, classifying them into two classes normal and pathology. During the training of the networks, we use transfer learning of the following convolutional neural network architectures AlexNet, GoogLeNet, ResNet-18, VGG-16, and VGG-19. Our results show the great potential of using deep learning techniques combined with infrared images in the aid of breast cancer diagnosis.We present the design of single-mode fibers for two-stage higher-order soliton compression at 2 µm wavelength and achieve high-degree pulse compression in cascaded single-mode fibers. The compression performance for the initial input pulse width from 1 to 50 ps is also investigated. For the initial third-order soliton of 10 ps, a compression factor of 75.7 has been achieved, and the pedestal energy is only 46.66%.Infrared spectrum analysis technology can perform fast and nondestructive detection of gas and has been widely used in many fields. This work studies the quantitative analysis technology of the infrared spectrum based on deep learning. The experimental results show that the quantitative analysis model of logging gas established here can reach 100% recognition accuracy for elemental gas; further, the accuracy rate of spectral of mixed gas recognition reached 98%, indicating that the infrared spectrum logging gas detection model based on deep learning can quickly and accurately perform quantitative analysis of logging gas.
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  • 3.%) and 182 (5.0%) were identified by both. Hospitalization rates increased significantly during this period (p less then 0.0001). Females comprised 61.5% and whites comprised 69.8% of the sample. Distribution by age differed by ascertainment method (ICD-9 vs. Algorithm) among the Early-old (age 65-74) 53.8% vs. 41.8%, respectively, and among the Late-old (age ≥85) 11.2% vs. 19.3%, respectively. Conclusion Hospitalization rates and anaphylaxis cases increased during the study period among the hospitalized elderly population of NY. Relying on anaphylaxis ICD-9 codes alone missed about half of possible cases. The identification, and possibly, impact of anaphylaxis among the elderly may differ depending on age, race, payor, NY county, and disposition.Background Non-thyroidal illness syndrome (NTIS) develops in a large proportion of critically ill patients and is associated with high risk for death. We aimed to investigate the correlation between NTIS and liver failure, and the short-term mortality of patients with these conditions. Methods The clinical data of 87 patients with liver failure were collected retrospectively, 73 of them were randomly selected for an observational study and to establish prognostic models, and 14 for model validation. Another 73 sex- and age-matched patients with mild chronic hepatitis were randomly selected as a control group. Serum free triiodothyronine (FT3), free thyroxine (FT4), and thyroid-stimulating hormone (TSH) were measured. The clinical characteristics of patients with liver failure and NTIS were analyzed. The follow-up of patients lasted for 3 months. Additionally, the values for predicting short-term mortality of model for end-stage liver disease (MELD), Child-Turcotte-Pugh (CTP), chronic liver failure-sequential OFA scores were 8.42±1.68 and 10.16±2.03 (P less then 0.001), respectively. FT3 negatively correlated with MELD score (r=-0.430, P less then 0.001). An FT3-MELD model was established by subjecting FT3 concentration and MELD score to logistic regression analysis using the following formula Logit(P) =-1.337 × FT3+0.114 × MELD+0.880. The area under the receiver operating characteristic (ROC) curve was 0.827 and the optimal cut-off value was 0.4523. The corresponding sensitivity and specificity were 67.6% and 91.7%. The areas under the ROC curve for FT3 concentration, MELD score, CTP score, and CLIF-SOFA score were 0.809, 0.779, 0.699, and 0.737, respectively. Conclusions Patients with liver failure often develop NTIS. FT3-MELD score perform better than CTP and CLIF-SOFA scores in predicting mortality in patients with liver failure. Thus, the FT3-MELD model could be of great value for the evaluation of the short-term mortality of such patients.Background The rapid antibiotics treatment targeted to a specific pathogen can improve clinical outcomes of septicemia. We aimed to evaluate the clinical characteristics and outcomes of biliary septicemia caused by cholangitis or cholecystitis according to causative organisms. Methods We performed a retrospective cohort study in 151 patients diagnosed with cholangitis or cholecystitis with bacterial septicemia from January 2013 to December 2015. All patients showed clinical evidence of biliary tract infection and had blood isolates that demonstrated septicemia. Results Gram-negative, gram-positive, and both types of bacteria caused 84.1% (127/151), 13.2% (20/151), and 2.6% (4/151) episodes of septicemia, respectively. The most common infecting organisms were Escherichia coli among gram-negative bacteria and Enterococcus species (Enterococcus casseliflavus and Enterococcus faecalis) among gram-positive bacteria. There were no differences in mortality, re-admission rate, and need for emergency decompression procedures between the gram-positive and gram-negative septicemia groups. In univariate analysis, previous gastrectomy history was associated with gram-positive bacteremia. https://www.selleckchem.com/products/a-438079-hcl.html Multivariate analysis also showed that previous gastrectomy history was strongly associated with gram-positive septicemia (Odds ratio = 5.47, 95% CI 1.19-25.23; P = 0.029). Conclusions Previous gastrectomy history was related to biliary septicemia induced by gram-positive organisms. This information would aid the choice of empirical antibiotics.Our insight into the pathogenesis of cholestatic liver disease remains limited, partly due to challenges in capturing the multitude of factors contributing to the disease pathogenesis in vitro. Tissue engineering could address this challenge by combining cells, materials and fabrication strategies into dynamic modelling platforms, recapitulating the multifaceted aetiology of cholangiopathies. Here we review different platforms for bioengineering the biliary tree, their advantages and limitations, how these can be applied in modelling biliary disorders and explore future directions for the field.Background Clinically significant portal hypertension (CSPH, HVPG≥10mmHg) persists 24 weeks after sustained virological response (SVR) in up to 78% of patients with HCV-related cirrhosis treated with direct acting antivirals. These patients remain at risk of decompensation. However, long-term paired clinical and hemodynamic data are not available for this population. Methods Multicenter prospective study including 226 patients with HCV-related cirrhosis and CSPH achieving SVR after antiviral therapy. Patients with CSPH 24 weeks after therapy (SVR24) were offered another hemodynamic assessment 96 weeks after end of treatment (SVR96). Results All patients were clinically evaluated. One-hundred seventeen (66%) of the 176 patients with SVR24-CSPH underwent SVR96-HVPG (this was not done for several reasons in the remaining 59 patients). At SVR96, 55/117 (47%) patients had HVPG less then 10mmHg and 53% had CSPH (65% if we assume persistence of CSPH in all 59 non-evaluated patients). The proportion of high-risk patients (HVPG ≥ 16mmHg) diminished from 41% to 15%. Liver stiffness decreased markedly after SVR (median decrease 10.5 ± 13kPa) but did not correlate with HVPG changes (30% of patients with LSM less then 13.6kPa still had CSPH). Seventeen (7%) patients presented de novo/additional clinical decompensation, which was independently associated with baseline HVPG ≥ 16mmHg and history of ascites. Conclusions Patients achieving SVR present a progressive reduction in portal pressure during follow-up. However, CSPH may persist in up to 53-65% of patients at SVR96, indicating persistent risk of decompensation. History of ascites and high-risk HVPG values identified patients at higher risk of de novo or further clinical decompensation.
    3.%) and 182 (5.0%) were identified by both. Hospitalization rates increased significantly during this period (p less then 0.0001). Females comprised 61.5% and whites comprised 69.8% of the sample. Distribution by age differed by ascertainment method (ICD-9 vs. Algorithm) among the Early-old (age 65-74) 53.8% vs. 41.8%, respectively, and among the Late-old (age ≥85) 11.2% vs. 19.3%, respectively. Conclusion Hospitalization rates and anaphylaxis cases increased during the study period among the hospitalized elderly population of NY. Relying on anaphylaxis ICD-9 codes alone missed about half of possible cases. The identification, and possibly, impact of anaphylaxis among the elderly may differ depending on age, race, payor, NY county, and disposition.Background Non-thyroidal illness syndrome (NTIS) develops in a large proportion of critically ill patients and is associated with high risk for death. We aimed to investigate the correlation between NTIS and liver failure, and the short-term mortality of patients with these conditions. Methods The clinical data of 87 patients with liver failure were collected retrospectively, 73 of them were randomly selected for an observational study and to establish prognostic models, and 14 for model validation. Another 73 sex- and age-matched patients with mild chronic hepatitis were randomly selected as a control group. Serum free triiodothyronine (FT3), free thyroxine (FT4), and thyroid-stimulating hormone (TSH) were measured. The clinical characteristics of patients with liver failure and NTIS were analyzed. The follow-up of patients lasted for 3 months. Additionally, the values for predicting short-term mortality of model for end-stage liver disease (MELD), Child-Turcotte-Pugh (CTP), chronic liver failure-sequential OFA scores were 8.42±1.68 and 10.16±2.03 (P less then 0.001), respectively. FT3 negatively correlated with MELD score (r=-0.430, P less then 0.001). An FT3-MELD model was established by subjecting FT3 concentration and MELD score to logistic regression analysis using the following formula Logit(P) =-1.337 × FT3+0.114 × MELD+0.880. The area under the receiver operating characteristic (ROC) curve was 0.827 and the optimal cut-off value was 0.4523. The corresponding sensitivity and specificity were 67.6% and 91.7%. The areas under the ROC curve for FT3 concentration, MELD score, CTP score, and CLIF-SOFA score were 0.809, 0.779, 0.699, and 0.737, respectively. Conclusions Patients with liver failure often develop NTIS. FT3-MELD score perform better than CTP and CLIF-SOFA scores in predicting mortality in patients with liver failure. Thus, the FT3-MELD model could be of great value for the evaluation of the short-term mortality of such patients.Background The rapid antibiotics treatment targeted to a specific pathogen can improve clinical outcomes of septicemia. We aimed to evaluate the clinical characteristics and outcomes of biliary septicemia caused by cholangitis or cholecystitis according to causative organisms. Methods We performed a retrospective cohort study in 151 patients diagnosed with cholangitis or cholecystitis with bacterial septicemia from January 2013 to December 2015. All patients showed clinical evidence of biliary tract infection and had blood isolates that demonstrated septicemia. Results Gram-negative, gram-positive, and both types of bacteria caused 84.1% (127/151), 13.2% (20/151), and 2.6% (4/151) episodes of septicemia, respectively. The most common infecting organisms were Escherichia coli among gram-negative bacteria and Enterococcus species (Enterococcus casseliflavus and Enterococcus faecalis) among gram-positive bacteria. There were no differences in mortality, re-admission rate, and need for emergency decompression procedures between the gram-positive and gram-negative septicemia groups. In univariate analysis, previous gastrectomy history was associated with gram-positive bacteremia. https://www.selleckchem.com/products/a-438079-hcl.html Multivariate analysis also showed that previous gastrectomy history was strongly associated with gram-positive septicemia (Odds ratio = 5.47, 95% CI 1.19-25.23; P = 0.029). Conclusions Previous gastrectomy history was related to biliary septicemia induced by gram-positive organisms. This information would aid the choice of empirical antibiotics.Our insight into the pathogenesis of cholestatic liver disease remains limited, partly due to challenges in capturing the multitude of factors contributing to the disease pathogenesis in vitro. Tissue engineering could address this challenge by combining cells, materials and fabrication strategies into dynamic modelling platforms, recapitulating the multifaceted aetiology of cholangiopathies. Here we review different platforms for bioengineering the biliary tree, their advantages and limitations, how these can be applied in modelling biliary disorders and explore future directions for the field.Background Clinically significant portal hypertension (CSPH, HVPG≥10mmHg) persists 24 weeks after sustained virological response (SVR) in up to 78% of patients with HCV-related cirrhosis treated with direct acting antivirals. These patients remain at risk of decompensation. However, long-term paired clinical and hemodynamic data are not available for this population. Methods Multicenter prospective study including 226 patients with HCV-related cirrhosis and CSPH achieving SVR after antiviral therapy. Patients with CSPH 24 weeks after therapy (SVR24) were offered another hemodynamic assessment 96 weeks after end of treatment (SVR96). Results All patients were clinically evaluated. One-hundred seventeen (66%) of the 176 patients with SVR24-CSPH underwent SVR96-HVPG (this was not done for several reasons in the remaining 59 patients). At SVR96, 55/117 (47%) patients had HVPG less then 10mmHg and 53% had CSPH (65% if we assume persistence of CSPH in all 59 non-evaluated patients). The proportion of high-risk patients (HVPG ≥ 16mmHg) diminished from 41% to 15%. Liver stiffness decreased markedly after SVR (median decrease 10.5 ± 13kPa) but did not correlate with HVPG changes (30% of patients with LSM less then 13.6kPa still had CSPH). Seventeen (7%) patients presented de novo/additional clinical decompensation, which was independently associated with baseline HVPG ≥ 16mmHg and history of ascites. Conclusions Patients achieving SVR present a progressive reduction in portal pressure during follow-up. However, CSPH may persist in up to 53-65% of patients at SVR96, indicating persistent risk of decompensation. History of ascites and high-risk HVPG values identified patients at higher risk of de novo or further clinical decompensation.
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  • ns would benefit from assessing patients' personality traits to address protective and risk factors for psychological distress, particularly in difficult-to-treat, highly disabled low **** pain patients. © 2020 Ibrahim et al.Purpose This cohort study aimed to determine patterns of glycemic fluctuation and changes in metabolic parameters during and after corticosteroid administration in newly diagnosed diffuse large B-cell lymphoma (DLBCL) patients treated with R-CHOP chemotherapy. Patients and Methods The study was performed in 20 patients of whom 11 had diabetes and 9 were nondiabetics. Anthropometric parameters were collected, and blood samples were taken four times during the study to analyze metabolic parameters. Capillary glucose was measured seven times a day (fasting, before mean meals, postprandial, and before bedtime) to evaluate the glycemic profile. Results In all 20 patients, acute glucocorticoid administration resulted in the elevation of average glucose levels, dominantly postprandial in the afternoon which correlates with corticosteroid peak action. In 7 out of 11 diabetics, prandial insulin was started during corticosteroid administration and discontinued afterward. Although none of our nondiabetic patients met diabetes criteria, evident is the elevation in average glycemia levels six weeks after corticosteroid administration. Potentially, even transient corticosteroid administration reduces insulin sensitivity and contributes to later glycemic disturbances. https://www.selleckchem.com/products/baxdrostat.html HbA1c levels were higher at the end of the study while fructosamine levels were higher during the study. Conclusion Patients and health-care professionals need to be aware of corticosteroid-induced hyperglycemia. We recommend identifying risk factors, measuring glycemia before, during, and after corticosteroid administration, and starting the adequate therapy as soon as possible. © 2020 Marić et al.Introduction The conversion of testosterone into dihydrotestosterone is catalyzed by the 5α-reductase type 2 enzyme which plays a crucial role in the external genitalia virilization. It is encoded by the SRD5A2 gene. Allelic variants in this gene cause a 46,XY DSD with no genotype-phenotype relationship. It was firstly reported in the early 70s from isolated clusters. Since then, several cases have been reported. Putting together, it will expand the knowledge on the molecular bases of androgen milieu. Methods We searched for SRD5A2 allelic variants (AV) in the literature (PubMed, Embase, MEDLINE) and websites (ensembl, HGMD, ClinVar). Only cases with AV in both alleles, either in homozygous or compound heterozygous were included. The included cases were analyzed according to ethnicity, exon, domain, aminoacid (aa) conservation, age at diagnosis, sex assignment, gender reassignment, external genitalia virilization and functional studies. External genitalia virilization was scored using Sinnecker scale. Conserv then 0.01). The overall rate of gender change from female to male ranged from 16% to 70%. The lowest rate of gender change from female to male occurred in Turkey and the highest in Brazil. External genitalia virilization was similar between those who changed and those who kept their assigned gender. The gender change rate was significantly different across the countries (V=0.44; p less then 0.001) even with similar virilization scores. Conclusion 5ARD2 deficiency has a worldwide distribution. Allelic variants at the NADPH-ligand region cause lower virilization. Genitalia virilization influenced sex assignment but not gender change which was influenced by cultural aspects across the countries. Molecular diagnosis influenced on sex assignment, favoring male sex assignment in newborns with 5α-reductase type 2 deficiency. © 2020 Batista and Mendonca.Potassium-competitive acid blockers (P-CABs), such as vonoprazan, represent a novel and heterogeneous class of drugs that competitively block the potassium binding site of gastric H+/K+ ATPase, thus potentially overcoming the limitations of proton-pump inhibitors. Different studies evaluated the efficacy of vonoprazan versus proton-pump inhibitors (PPIs) for the treatment of acid-related disorders, and, therefore, P-CABs present the same indications of PPIs gastroesophageal reflux disease, gastric and duodenal ulcer healing, management of upper gastrointestinal bleeding, non-steroidal anti-inflammatory drug (NSAID)-associated ulcers and Helicobacter pylori eradication therapy. The aim of this review was to evaluate the role of vonoprazan for the treatment of peptic ulcer disease (PUD) and the management of gastric ulcer occurring after endoscopic submucosal dissection (ESD). Indeed, vonoprazan (at the dose of both 10 and 20mg) showed similar results to PPIs in patients taking long-term NSAIDs, in the absence of severe adverse effects, and provided a more rapid and effective treatment of ulcers induced by ESD. However, studies in medical literature are heterogeneous, mainly performed with a retrospective design, and often carried out in Japan only. For these reasons, further prospective, randomized studies are warranted in order to help physicians, patients, and policymakers regarding the use of vonoprazan in clinical practice. © 2020 Marabotto et al.Background Metabolic syndrome has increased to epidemic levels in low- and middle-income countries. The knowledge on metabolic syndrome and its related diseases constitutes a clinical, epidemiological, and economic challenge of great relevance. The frequency of metabolic syndrome may vary between populations depending on age, sex, lifestyle, and culture; however, in Colombia, there is only little research, and the available studies focus on small populations that do not allow estimating their prevalence and distribution in different sociodemographic groups. We aimed to estimate the prevalence of metabolic syndrome and its association with sociodemographic characteristics in participants attending public chronic disease control programs in Medellin, Colombia, in the year 2018. Methods We conducted a cross-sectional study in all patients who participated in a public chronic disease control program. Involved in this study were 68,288 individuals who attended at 10 hospital units and were strategically distributed in the city.
    ns would benefit from assessing patients' personality traits to address protective and risk factors for psychological distress, particularly in difficult-to-treat, highly disabled low back pain patients. © 2020 Ibrahim et al.Purpose This cohort study aimed to determine patterns of glycemic fluctuation and changes in metabolic parameters during and after corticosteroid administration in newly diagnosed diffuse large B-cell lymphoma (DLBCL) patients treated with R-CHOP chemotherapy. Patients and Methods The study was performed in 20 patients of whom 11 had diabetes and 9 were nondiabetics. Anthropometric parameters were collected, and blood samples were taken four times during the study to analyze metabolic parameters. Capillary glucose was measured seven times a day (fasting, before mean meals, postprandial, and before bedtime) to evaluate the glycemic profile. Results In all 20 patients, acute glucocorticoid administration resulted in the elevation of average glucose levels, dominantly postprandial in the afternoon which correlates with corticosteroid peak action. In 7 out of 11 diabetics, prandial insulin was started during corticosteroid administration and discontinued afterward. Although none of our nondiabetic patients met diabetes criteria, evident is the elevation in average glycemia levels six weeks after corticosteroid administration. Potentially, even transient corticosteroid administration reduces insulin sensitivity and contributes to later glycemic disturbances. https://www.selleckchem.com/products/baxdrostat.html HbA1c levels were higher at the end of the study while fructosamine levels were higher during the study. Conclusion Patients and health-care professionals need to be aware of corticosteroid-induced hyperglycemia. We recommend identifying risk factors, measuring glycemia before, during, and after corticosteroid administration, and starting the adequate therapy as soon as possible. © 2020 Marić et al.Introduction The conversion of testosterone into dihydrotestosterone is catalyzed by the 5α-reductase type 2 enzyme which plays a crucial role in the external genitalia virilization. It is encoded by the SRD5A2 gene. Allelic variants in this gene cause a 46,XY DSD with no genotype-phenotype relationship. It was firstly reported in the early 70s from isolated clusters. Since then, several cases have been reported. Putting together, it will expand the knowledge on the molecular bases of androgen milieu. Methods We searched for SRD5A2 allelic variants (AV) in the literature (PubMed, Embase, MEDLINE) and websites (ensembl, HGMD, ClinVar). Only cases with AV in both alleles, either in homozygous or compound heterozygous were included. The included cases were analyzed according to ethnicity, exon, domain, aminoacid (aa) conservation, age at diagnosis, sex assignment, gender reassignment, external genitalia virilization and functional studies. External genitalia virilization was scored using Sinnecker scale. Conserv then 0.01). The overall rate of gender change from female to male ranged from 16% to 70%. The lowest rate of gender change from female to male occurred in Turkey and the highest in Brazil. External genitalia virilization was similar between those who changed and those who kept their assigned gender. The gender change rate was significantly different across the countries (V=0.44; p less then 0.001) even with similar virilization scores. Conclusion 5ARD2 deficiency has a worldwide distribution. Allelic variants at the NADPH-ligand region cause lower virilization. Genitalia virilization influenced sex assignment but not gender change which was influenced by cultural aspects across the countries. Molecular diagnosis influenced on sex assignment, favoring male sex assignment in newborns with 5α-reductase type 2 deficiency. © 2020 Batista and Mendonca.Potassium-competitive acid blockers (P-CABs), such as vonoprazan, represent a novel and heterogeneous class of drugs that competitively block the potassium binding site of gastric H+/K+ ATPase, thus potentially overcoming the limitations of proton-pump inhibitors. Different studies evaluated the efficacy of vonoprazan versus proton-pump inhibitors (PPIs) for the treatment of acid-related disorders, and, therefore, P-CABs present the same indications of PPIs gastroesophageal reflux disease, gastric and duodenal ulcer healing, management of upper gastrointestinal bleeding, non-steroidal anti-inflammatory drug (NSAID)-associated ulcers and Helicobacter pylori eradication therapy. The aim of this review was to evaluate the role of vonoprazan for the treatment of peptic ulcer disease (PUD) and the management of gastric ulcer occurring after endoscopic submucosal dissection (ESD). Indeed, vonoprazan (at the dose of both 10 and 20mg) showed similar results to PPIs in patients taking long-term NSAIDs, in the absence of severe adverse effects, and provided a more rapid and effective treatment of ulcers induced by ESD. However, studies in medical literature are heterogeneous, mainly performed with a retrospective design, and often carried out in Japan only. For these reasons, further prospective, randomized studies are warranted in order to help physicians, patients, and policymakers regarding the use of vonoprazan in clinical practice. © 2020 Marabotto et al.Background Metabolic syndrome has increased to epidemic levels in low- and middle-income countries. The knowledge on metabolic syndrome and its related diseases constitutes a clinical, epidemiological, and economic challenge of great relevance. The frequency of metabolic syndrome may vary between populations depending on age, sex, lifestyle, and culture; however, in Colombia, there is only little research, and the available studies focus on small populations that do not allow estimating their prevalence and distribution in different sociodemographic groups. We aimed to estimate the prevalence of metabolic syndrome and its association with sociodemographic characteristics in participants attending public chronic disease control programs in Medellin, Colombia, in the year 2018. Methods We conducted a cross-sectional study in all patients who participated in a public chronic disease control program. Involved in this study were 68,288 individuals who attended at 10 hospital units and were strategically distributed in the city.
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  • The generation of surfactant-assisted exfoliated graphene oxide (sEGO) by electrochemical exfoliation is influenced by the presence of surfactants, and in particular the hydrophobic tail molecular-architecture. Increasing surfactant chain branching may improve the affinity for the graphite surfaces to provide enhanced intersheet separation and stabilisation of exfoliated sheets. The resulting sEGO composites can be readily used to remove of a model pollutant, the dye, methylene blue (MB), from aqueous solutions by providing abundant sites for dye adsorption. This article explores relationships between surfactant structure and the performance of sEGO for MB adsorption. Double-branched and highly branched triple-chain graphene-compatible surfactants were successfully synthesised and characterised by 1H NMR spectroscopy. These surfactants were used to produce sEGO via electrochemical exfoliation of graphite, and the sEGOs generated were further utilised in batch adsorption studies of MB from aqueous solutions. Td single-chain surfactants.Despite their denaturing properties, detergents are used to purify and study membrane proteins. https://www.selleckchem.com/products/neo2734.html Herein, we demonstrated a polymer-based detergent-free extraction of the membrane protein cytochrome-b5 along with E. coli lipids. Nuclear magnetic resonance experiments revealed the suitability of using nanodiscs for high-resolution studies and revealed the types of native lipids associated with the protein.It is revealed that phosphate ion functionalization of transition metal phosphides can achieve outstanding alkaline hydrogen evolution performance. Herein, the obtained phosphate ion functionalized CoP nanowire arrays exhibit high hydrogen evolution reaction (HER) activity (an overpotential of 112 mV to afford 100 mA cm-2), a low Tafel slope (49 mV dec-1) and outstanding stability in 1.0 M KOH.Background In Pakistan and other countries using oral polio vaccine (OPV), immunity to type 2 poliovirus is now maintained by a single dose of inactivated polio vaccine (IPV) in routine immunization, supplemented in outbreak settings by monovalent OPV type 2 (mOPV2) and IPV. While well-studied in clinical trials, population protection against poliovirus type 2 achieved in routine and outbreak settings is generally unknown. Methods We conducted two phases of a population-based serological survey of 7940 children aged 6-11 months old, between November 2016 and October 2017 from 13 polio high-risk locations in Pakistan. Results Type 2 seroprevalence was 50% among children born after trivalent OPV (tOPV) withdrawal (April 2016), with heterogeneity across survey areas. Supplementary immunization activities (SIAs) with mOPV2 followed by IPV improved population immunity, varying from 89% in Pishin to 64% in Killa Abdullah, with little observed marginal benefit of subsequent campaigns. In the other high-risk districts surveyed, a single SIA with IPV was conducted and appeared to improve immunity to 57% in Karachi to 84% in Khyber. Conclusions Our study documents declining population immunity following trivalent OPV withdrawal in Pakistan, and wide heterogeneity in the population impact of supplementary immunization campaigns. Differences between areas, attributable to vaccination campaign coverage, were far more important for type 2 humoral immunity than the number of vaccination campaigns or vaccines used. This emphasizes the importance of immunization campaign coverage for type 2 outbreak response in the final stages of polio eradication. Given the declining type 2 immunity in new birth cohorts it is also recommended that 2 or more doses of IPV should be introduced in the routine immunization program of Pakistan.The Developing Countries Vaccine Manufacturers Network (DCVMN) is a public health-driven alliance consisting of 43 vaccine manufacturers from 14 countries and territories, operating under the mandate to protect all people against known and emerging infectious diseases, by improving the availability of high-quality vaccines globally. The Network provides a platform for organizations to come together regularly to share technical information, best practices and future prospects. DCVMN members are playing an increasingly important role in public health supplying over 50% of the doses of vaccines procured by UNICEF globally. To evaluate the progress made by Network's members, a survey consisting of 9 questions covering three important components of the manufacturers in the network was created, focusing on company dedicated human resources, vaccine production, and research and development efforts. Results show that more vaccines from more manufacturers are achieving WHO Pre-qualification, with areas of focus including the contributions to a Polio-free world, ending cholera, and tackling re-emerging diseases, such as measles. An increase by 50% of number of manufacturing companies holding WHO prequalified vaccines was observed from 2013 to 2019, strengthening open competitiveness for global vaccines supply. Notably, Network members have 181 vaccine projects in the research and development pipeline, highlighting novel vaccines against mosquito-borne diseases, such as dengue, chikungunya and Zika, novel human papillomavirus and pneumococcal conjugated vaccines. This report summarizes the progressive efforts of DCVMN members to contribute to reducing the burden of infectious diseases globally and details their commitment to vaccine innovation, particularly in the past five years, in the context of how vaccine innovations of today will shape the fight against infectious diseases tomorrow.Rationale and objective Quantification of residual native kidney function (RKF) is rarely performed in patients on hemodialysis. Methods of estimating residual kidney urea clearance (KRU) that use commonly available laboratory and clinical data, with or without urine volume information, may be useful tools. Study design Retrospective, predictive modeling and model validation. Setting and participants Initial timed urine collections in 604 incident in-center hemodialysis patients on thrice weekly treatments from a single academic center where KRU is measured in usual care. Predictors Models using combination of serum creatinine and urea, age, weight, height, gender, race, fluid weight gains, and with and without 24-hour urine volume. Outcomes Residual kidney urea clearance. Analytic approach Generalized linear model was used for model development for KRU using the first urine collection in 604 patients, as both a continuous and binary outcome (for >2.5 mL/min). Model validation was done by bootstrap resampling of the development cohort and with 1093 follow-up measurements.
    The generation of surfactant-assisted exfoliated graphene oxide (sEGO) by electrochemical exfoliation is influenced by the presence of surfactants, and in particular the hydrophobic tail molecular-architecture. Increasing surfactant chain branching may improve the affinity for the graphite surfaces to provide enhanced intersheet separation and stabilisation of exfoliated sheets. The resulting sEGO composites can be readily used to remove of a model pollutant, the dye, methylene blue (MB), from aqueous solutions by providing abundant sites for dye adsorption. This article explores relationships between surfactant structure and the performance of sEGO for MB adsorption. Double-branched and highly branched triple-chain graphene-compatible surfactants were successfully synthesised and characterised by 1H NMR spectroscopy. These surfactants were used to produce sEGO via electrochemical exfoliation of graphite, and the sEGOs generated were further utilised in batch adsorption studies of MB from aqueous solutions. Td single-chain surfactants.Despite their denaturing properties, detergents are used to purify and study membrane proteins. https://www.selleckchem.com/products/neo2734.html Herein, we demonstrated a polymer-based detergent-free extraction of the membrane protein cytochrome-b5 along with E. coli lipids. Nuclear magnetic resonance experiments revealed the suitability of using nanodiscs for high-resolution studies and revealed the types of native lipids associated with the protein.It is revealed that phosphate ion functionalization of transition metal phosphides can achieve outstanding alkaline hydrogen evolution performance. Herein, the obtained phosphate ion functionalized CoP nanowire arrays exhibit high hydrogen evolution reaction (HER) activity (an overpotential of 112 mV to afford 100 mA cm-2), a low Tafel slope (49 mV dec-1) and outstanding stability in 1.0 M KOH.Background In Pakistan and other countries using oral polio vaccine (OPV), immunity to type 2 poliovirus is now maintained by a single dose of inactivated polio vaccine (IPV) in routine immunization, supplemented in outbreak settings by monovalent OPV type 2 (mOPV2) and IPV. While well-studied in clinical trials, population protection against poliovirus type 2 achieved in routine and outbreak settings is generally unknown. Methods We conducted two phases of a population-based serological survey of 7940 children aged 6-11 months old, between November 2016 and October 2017 from 13 polio high-risk locations in Pakistan. Results Type 2 seroprevalence was 50% among children born after trivalent OPV (tOPV) withdrawal (April 2016), with heterogeneity across survey areas. Supplementary immunization activities (SIAs) with mOPV2 followed by IPV improved population immunity, varying from 89% in Pishin to 64% in Killa Abdullah, with little observed marginal benefit of subsequent campaigns. In the other high-risk districts surveyed, a single SIA with IPV was conducted and appeared to improve immunity to 57% in Karachi to 84% in Khyber. Conclusions Our study documents declining population immunity following trivalent OPV withdrawal in Pakistan, and wide heterogeneity in the population impact of supplementary immunization campaigns. Differences between areas, attributable to vaccination campaign coverage, were far more important for type 2 humoral immunity than the number of vaccination campaigns or vaccines used. This emphasizes the importance of immunization campaign coverage for type 2 outbreak response in the final stages of polio eradication. Given the declining type 2 immunity in new birth cohorts it is also recommended that 2 or more doses of IPV should be introduced in the routine immunization program of Pakistan.The Developing Countries Vaccine Manufacturers Network (DCVMN) is a public health-driven alliance consisting of 43 vaccine manufacturers from 14 countries and territories, operating under the mandate to protect all people against known and emerging infectious diseases, by improving the availability of high-quality vaccines globally. The Network provides a platform for organizations to come together regularly to share technical information, best practices and future prospects. DCVMN members are playing an increasingly important role in public health supplying over 50% of the doses of vaccines procured by UNICEF globally. To evaluate the progress made by Network's members, a survey consisting of 9 questions covering three important components of the manufacturers in the network was created, focusing on company dedicated human resources, vaccine production, and research and development efforts. Results show that more vaccines from more manufacturers are achieving WHO Pre-qualification, with areas of focus including the contributions to a Polio-free world, ending cholera, and tackling re-emerging diseases, such as measles. An increase by 50% of number of manufacturing companies holding WHO prequalified vaccines was observed from 2013 to 2019, strengthening open competitiveness for global vaccines supply. Notably, Network members have 181 vaccine projects in the research and development pipeline, highlighting novel vaccines against mosquito-borne diseases, such as dengue, chikungunya and Zika, novel human papillomavirus and pneumococcal conjugated vaccines. This report summarizes the progressive efforts of DCVMN members to contribute to reducing the burden of infectious diseases globally and details their commitment to vaccine innovation, particularly in the past five years, in the context of how vaccine innovations of today will shape the fight against infectious diseases tomorrow.Rationale and objective Quantification of residual native kidney function (RKF) is rarely performed in patients on hemodialysis. Methods of estimating residual kidney urea clearance (KRU) that use commonly available laboratory and clinical data, with or without urine volume information, may be useful tools. Study design Retrospective, predictive modeling and model validation. Setting and participants Initial timed urine collections in 604 incident in-center hemodialysis patients on thrice weekly treatments from a single academic center where KRU is measured in usual care. Predictors Models using combination of serum creatinine and urea, age, weight, height, gender, race, fluid weight gains, and with and without 24-hour urine volume. Outcomes Residual kidney urea clearance. Analytic approach Generalized linear model was used for model development for KRU using the first urine collection in 604 patients, as both a continuous and binary outcome (for >2.5 mL/min). Model validation was done by bootstrap resampling of the development cohort and with 1093 follow-up measurements.
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  • Although various bio inspired materials with outstanding mechanical, acoustic and optic properties have been developed, bio inspired microwave absorbing materials are rarely reported. Herein, under the inspiration of the opal, for the first time a kind of Co@Co3O4/nitrogen-doped (N-doped) mesoporous carbon spheres (Co@Co3O4/NMCS) with periodic three-dimensional (3D) structure toward microwave absorption of Co@Co3O4/NMCS was designed and synthesized. The microwave absorption performance was optimized with respect to the contents of Co@Co3O4 nanoparticles. Co@Co3O4/NMCS with ~20wt% Co@Co3O4 content achieves the -53.8 dB at 5.7 GHz with a thickness of 3.5 mm. The simulated radar cross section result demonstrated the Co@Co3O4/NMCS can efficiently suppress the strong electromagnetic scattering from metal groove structure. This periodic porous structures of nitrogen-doped mesoporous carbon spheres combined with the magnetic Co@Co3O4 nanoparticles contribute to the excellent absorbing performance.Although organic-inorganic halide perovskite solar cells (PSCs) have shown dramatically enhanced power conversion efficiencies (PCEs) in the last decade, their long-term stability is still a critical challenge for commercialization. To address this issue, tremendous research efforts have been devoted to exploring all-inorganic PSCs because of their intrinsically high structural stability. Among them, CsPbIBr2-based all-inorganic PSCs have drawn increasing attention owing to their suitable band gap and favorable stability. However, the PCEs of CsPbIBr2-based PSCs are still far from those of their organic-inorganic counterparts, thus inhibiting their practical applications. Herein, we demonstrate that by simply doping an appropriate amount of Cu2+ into a CsPbIBr2 perovskite lattice (0.5 at. % to Pb2+), the perovskite crystallinity and grain size are increased, the perovskite film morphology is improved, the energy level alignment is optimized, and the trap density and charge recombination are reduced. As a consequence, a decent PCE improvement from 7.81 to 10.4% is achieved along with an enhancement ratio of 33% with a CsPbIBr2-based PSC. Furthermore, the long-term stability of CsPbIBr2-based PSCs against moisture and heat also remarkably improved by Cu2+ doping. This work provides a facile and effective route to improve the PCE and long-term stability of CsPbIBr2-based all-inorganic PSCs.Whereas small siRNA nanocarriers with a size of 10-20 nm exert high tissue-permeability, they encounter the challenge of inefficient adsorption on the cell surface, resulting in poor cellular uptake of siRNA. To solve this dilemma, this study aims to control the hydrophobicity of a small siRNA nanocarrier, unimer polyion complex (uPIC), with a size of ∼10 nm. The uPICs are fabricated to consist of a single pair between siRNA and a smart triblock copolymer comprising hydrophilic poly(2-ethyl-2-oxazoline) (PEtOx), thermoswitchable poly(2-n-propyl-2-oxazoline) (PnPrOx), and cationic poly(l-lysine) (PLL). The PnPrOx segment is dehydrated at 37 °C (>lower critical solution temperature) to enhance the hydrophobicity of uPICs. The uPICs with a hydrophobic domain facilitates cellular uptake of the siRNA payload through stronger binding to the cell surface, compared with control uPICs without a PnPrOx segment, leading to a significantly enhanced gene silencing effect in cultured cancer cells.We employed first-principles calculations to investigate the effect of structural disorders on the Li storage capacity of graphene nanomaterials. Our calculations first revealed that the Li storage capacity of a graphene monolayer does not necessarily increase with the size of a C vacancy created but is largely determined by the local geometry of the defect sites. Our electronic structure analysis further revealed that the enhanced Li storage capacity by the C vacancy defect is mainly attributed to the increased number of the unoccupied electronic density of states lying near the Fermi level, which can be substantially increased by raising the number of bond rotations within the vacancy sites. Furthermore, it was also found that the Li storage capacity of graphene can be effectively enhanced by increasing the degree of local ring disorders without the presence of any vacancy defect. The amorphous graphene structure was shown to possess a relatively higher Li storage capacity compared to pristine graphene, primarily owing to the presence of many nonhexagonal rings randomly distributed in the graphene lattice. These nonhexagonal rings can create many electron-deficient regions on the graphene surface to effectively accommodate more electrons from Li, thereby substantially enhancing the Li storage capacity of graphene nanomaterials.Mixed oxygen ionic and electronic conduction is a vital function for cathode materials of solid oxide fuel cells (SOFCs), ensuring high efficiency and low-temperature operation. However, Fe-based layered double perovskites, as a classical family of mixed oxygen ionic and electronic conducting (MIEC) oxides, are generally inactive toward the oxygen reduction reaction due to their intrinsic low electronic and oxygen-ion conductivity. Herein, Zn doping is presented as a novel pathway to improve the electrochemical performance of Fe-based layered double perovskite oxides in SOFC applications. The results demonstrate that the incorporation of Zn ions at Fe sites of the PrBaFe2O5+δ (PBF) lattice simultaneously regulates the concentration of holes and oxygen vacancies. Consequently, the oxygen surface exchange coefficient and oxygen-ion bulk diffusion coefficient of Zn-doped PBF are significantly tuned. The enhanced mixed oxygen ionic and electronic conduction is further confirmed by a lower polarization resistance of 0.0615 and 0.231 Ω·cm2 for PrBaFe1.9Zn0.1O5+δ (PBFZ0.1) and PBF, respectively, which is measured using symmetric cells at 750 °C. Moreover, the PBFZ0.1-based single cell demonstrates the highest output performance among the reported Fe-based layered double perovskite cathodes, rendering a peak power density of 1.06 W·cm-2 at 750 °C and outstanding stability over 240 h at 700 °C. https://www.selleckchem.com/products/Ilginatinib-hydrochloride.html The current work provides a highly effective strategy for designing cathode materials for next-generation SOFCs.
    Although various bio inspired materials with outstanding mechanical, acoustic and optic properties have been developed, bio inspired microwave absorbing materials are rarely reported. Herein, under the inspiration of the opal, for the first time a kind of Co@Co3O4/nitrogen-doped (N-doped) mesoporous carbon spheres (Co@Co3O4/NMCS) with periodic three-dimensional (3D) structure toward microwave absorption of Co@Co3O4/NMCS was designed and synthesized. The microwave absorption performance was optimized with respect to the contents of Co@Co3O4 nanoparticles. Co@Co3O4/NMCS with ~20wt% Co@Co3O4 content achieves the -53.8 dB at 5.7 GHz with a thickness of 3.5 mm. The simulated radar cross section result demonstrated the Co@Co3O4/NMCS can efficiently suppress the strong electromagnetic scattering from metal groove structure. This periodic porous structures of nitrogen-doped mesoporous carbon spheres combined with the magnetic Co@Co3O4 nanoparticles contribute to the excellent absorbing performance.Although organic-inorganic halide perovskite solar cells (PSCs) have shown dramatically enhanced power conversion efficiencies (PCEs) in the last decade, their long-term stability is still a critical challenge for commercialization. To address this issue, tremendous research efforts have been devoted to exploring all-inorganic PSCs because of their intrinsically high structural stability. Among them, CsPbIBr2-based all-inorganic PSCs have drawn increasing attention owing to their suitable band gap and favorable stability. However, the PCEs of CsPbIBr2-based PSCs are still far from those of their organic-inorganic counterparts, thus inhibiting their practical applications. Herein, we demonstrate that by simply doping an appropriate amount of Cu2+ into a CsPbIBr2 perovskite lattice (0.5 at. % to Pb2+), the perovskite crystallinity and grain size are increased, the perovskite film morphology is improved, the energy level alignment is optimized, and the trap density and charge recombination are reduced. As a consequence, a decent PCE improvement from 7.81 to 10.4% is achieved along with an enhancement ratio of 33% with a CsPbIBr2-based PSC. Furthermore, the long-term stability of CsPbIBr2-based PSCs against moisture and heat also remarkably improved by Cu2+ doping. This work provides a facile and effective route to improve the PCE and long-term stability of CsPbIBr2-based all-inorganic PSCs.Whereas small siRNA nanocarriers with a size of 10-20 nm exert high tissue-permeability, they encounter the challenge of inefficient adsorption on the cell surface, resulting in poor cellular uptake of siRNA. To solve this dilemma, this study aims to control the hydrophobicity of a small siRNA nanocarrier, unimer polyion complex (uPIC), with a size of ∼10 nm. The uPICs are fabricated to consist of a single pair between siRNA and a smart triblock copolymer comprising hydrophilic poly(2-ethyl-2-oxazoline) (PEtOx), thermoswitchable poly(2-n-propyl-2-oxazoline) (PnPrOx), and cationic poly(l-lysine) (PLL). The PnPrOx segment is dehydrated at 37 °C (>lower critical solution temperature) to enhance the hydrophobicity of uPICs. The uPICs with a hydrophobic domain facilitates cellular uptake of the siRNA payload through stronger binding to the cell surface, compared with control uPICs without a PnPrOx segment, leading to a significantly enhanced gene silencing effect in cultured cancer cells.We employed first-principles calculations to investigate the effect of structural disorders on the Li storage capacity of graphene nanomaterials. Our calculations first revealed that the Li storage capacity of a graphene monolayer does not necessarily increase with the size of a C vacancy created but is largely determined by the local geometry of the defect sites. Our electronic structure analysis further revealed that the enhanced Li storage capacity by the C vacancy defect is mainly attributed to the increased number of the unoccupied electronic density of states lying near the Fermi level, which can be substantially increased by raising the number of bond rotations within the vacancy sites. Furthermore, it was also found that the Li storage capacity of graphene can be effectively enhanced by increasing the degree of local ring disorders without the presence of any vacancy defect. The amorphous graphene structure was shown to possess a relatively higher Li storage capacity compared to pristine graphene, primarily owing to the presence of many nonhexagonal rings randomly distributed in the graphene lattice. These nonhexagonal rings can create many electron-deficient regions on the graphene surface to effectively accommodate more electrons from Li, thereby substantially enhancing the Li storage capacity of graphene nanomaterials.Mixed oxygen ionic and electronic conduction is a vital function for cathode materials of solid oxide fuel cells (SOFCs), ensuring high efficiency and low-temperature operation. However, Fe-based layered double perovskites, as a classical family of mixed oxygen ionic and electronic conducting (MIEC) oxides, are generally inactive toward the oxygen reduction reaction due to their intrinsic low electronic and oxygen-ion conductivity. Herein, Zn doping is presented as a novel pathway to improve the electrochemical performance of Fe-based layered double perovskite oxides in SOFC applications. The results demonstrate that the incorporation of Zn ions at Fe sites of the PrBaFe2O5+δ (PBF) lattice simultaneously regulates the concentration of holes and oxygen vacancies. Consequently, the oxygen surface exchange coefficient and oxygen-ion bulk diffusion coefficient of Zn-doped PBF are significantly tuned. The enhanced mixed oxygen ionic and electronic conduction is further confirmed by a lower polarization resistance of 0.0615 and 0.231 Ω·cm2 for PrBaFe1.9Zn0.1O5+δ (PBFZ0.1) and PBF, respectively, which is measured using symmetric cells at 750 °C. Moreover, the PBFZ0.1-based single cell demonstrates the highest output performance among the reported Fe-based layered double perovskite cathodes, rendering a peak power density of 1.06 W·cm-2 at 750 °C and outstanding stability over 240 h at 700 °C. https://www.selleckchem.com/products/Ilginatinib-hydrochloride.html The current work provides a highly effective strategy for designing cathode materials for next-generation SOFCs.
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  • 2% and the average thermal expansion co-efficient (αavg) of 10.7 ± 1.2 × 10-6 K-1 in the temperature range (298-973 K) were comparatively lower than the parent phase, LaSr4(PO4)3O. The WF1 showed resistance to leaching of RE3+ and P5+ with only the leaching of Sr2+ ion whose leach rate was of the order 10-3-10-4 gm-2d-1. V.This study investigated the effects of radial oxygen loss (ROL) of three different plants on nitrobenzene (NB) wastewater treatment and bioelectricity generation performance in constructed wetland-microbial fuel cell (CW-MFC). ROL and root biomass from wetland plants showed positive effects on NB wastewater compared to unplanted CW-MFC. Scirpus validus exhibited higher tolerance to NB than Typha orientalis and Iris pseudacorus at 20-200 mg/L NB. As NB concentration reached 200 mg/L, the CW-****with Scirpus validus had relatively high DO (2.57 ±â€¯0.17 mg/L) and root biomass (16.42 ±â€¯0.18 g/m2), which resulted in the highest power density and voltage (19.5 mW/m2, 590 mV) as well as NB removal efficiency (93.9 %) among four reactors. High-throughput sequencing results suggested that electrochemically active bacteria (EAB) (e.g., Geobacter, Ferruginibacter) and dominant NB-degrading bacteria (e.g., Comamonas, Pseudomonas) could be enhanced by wetland plants, especially in CW-****with Scirpus validus. Therefore, Scirpus validus was a good option for simultaneously treating NB wastewater and producing bioelectricity. Raw and treated leachate samples were collected from different landfills in Greece and analyzed for several groups of emerging contaminants using high resolution mass spectrometric workflows to investigate the possible threat from their discharge to the aquatic environment. Fifty-eight compounds were detected; 2-OH-benzothiazole was found at 84 % of the samples and perfluorooctanoic acid at 68 %. Bisphenol A, valsartan and 2-OH-benzothiazole had the highest average concentrations in raw leachates, after biological treatment and after reverse osmosis, respectively. In untreated leachates, Risk Quotients > 1 were calculated for 35 and 18 compounds when maximum and average concentrations were used, indicating an ecological threat for the aquatic environment. Leachates' biological treatment partially removed COD and NH4+-N, as well as 52.3 % of total emerging contaminants. The application of reverse osmosis resulted in a 98 % removal of major pollutants, 99 % removal of total emerging contaminants and a significant decrease of ecotoxicity to Lemna minor. Beside the decrease of the detected micropollutants during treatment, RQs > 1 were still calculated for 13 and 3 compounds after biological treatment and reverse osmosis, respectively. Among these, special attention should be given to 2-OH-benzothiazole and bisphenol A that had RQ values **** higher than 1 for all tested organisms. Semiconductor quantum dots (QDs) are nanocrystals used in diverse optoelectronics. At the end of their useful life they are likely to end up in landfills, where they could be mobilzed by infiltrating rain water. In this work, spectroscopic and light scattering techniques were employed to investigate the environmental fate of QDs exposed to leachates from Austrian landfill sites containing municipal solid and bulky wastes. Brij-58-coated CdSe QDs, a model for surfactant stabilized hydrophobic nanoparticles, primarily sedimented before being degraded on a slower timescale in the course of 6 months. In contrast, N-acetyl-l-cystein-coated CdTe QDs, which represent electrostatically stabilized nanoparticles with a small covalently linked stabilizing molecule, mainly underwent a degradation mechanism that was accelerated by temperature. 71-95 % of this QD type was still dispersed in all leachates after 6 months at low temperature. Leachate temperature and composition, such as the DOC, as well as the used particle coating determined the mechanistic route of clearance of sedimentation versus degradation. Our study shows, that mechanistic investigations are necessary to determine the persistence of nanoparticles depending on their coatings in waste matrices which can be further used to assess hazardous risks of such nanowastes. The outbreak of COVID-19 in China in December 2019 has been identified as a pandemic and a health emergency of global concern. Our objective was to investigate the prevalence and predictors of posttraumatic stress symptoms (PTSS) in China hardest-hit areas during COVID-19 outbreak, especially exploring the gender difference existing in PTSS. One month after the December 2019 COVID-19 outbreak in Wuhan China, we surveyed PTSS and sleep qualities among 285 residents in Wuhan and surrounding cities using the PTSD Checklist for DSM-5 (PCL-5) and 4 items from the Pittsburgh Sleep Quality Index (PSQI). Hierarchical regression analysis and non-parametric test were used to analyze the data. Results indicated that the prevalence of PTSS in China hardest-hit areas a month after the COVID-19 outbreak was 7%. Women reported significant higher PTSS in the domains of re-experiencing, negative alterations in cognition or mood, and hyper-arousal. Participants with better sleep quality or less frequency of early awakenings reported lower PTSS. Professional and effective mental health services should be designed in order to aid the psychological wellbeing of the population in affected areas, especially those living in hardest-hit areas, females and people with poor sleep quality. Recently, numerous studies concerning dye-labeled microplastic beads have reported on the end-of-life, environmental effects of microplastics because of their ubiquitous commercial usage. Less is understood about the toxicity and bioaccumulation of plastics other than microplastic beads, which can also harm the environment (e.g., fragments, fibers, foams, and films). https://www.selleckchem.com/products/icarm1.html Expanded polystyrene (EPS) is widespread in the environment owing to its many uses, however, limited research has been conducted on EPS foams. This study focuses on developing an efficient method for the preparation of micro-sized EPS foams for research purposes and compares it with previous microplastics preparation methods reported in 68 previous studies. It was demonstrated that the iced EPS block method (iced EPS block + water) generated larger quantities of smaller-sized EPS foams (20-200 and 200-500 μm) compared to the EPS + ice + water and EPS + water methods. The optimal protocol includes 1) iced EPS block preparation, 2) grinding and sieving, and 3) collecting.
    2% and the average thermal expansion co-efficient (αavg) of 10.7 ± 1.2 × 10-6 K-1 in the temperature range (298-973 K) were comparatively lower than the parent phase, LaSr4(PO4)3O. The WF1 showed resistance to leaching of RE3+ and P5+ with only the leaching of Sr2+ ion whose leach rate was of the order 10-3-10-4 gm-2d-1. V.This study investigated the effects of radial oxygen loss (ROL) of three different plants on nitrobenzene (NB) wastewater treatment and bioelectricity generation performance in constructed wetland-microbial fuel cell (CW-MFC). ROL and root biomass from wetland plants showed positive effects on NB wastewater compared to unplanted CW-MFC. Scirpus validus exhibited higher tolerance to NB than Typha orientalis and Iris pseudacorus at 20-200 mg/L NB. As NB concentration reached 200 mg/L, the CW-MFC with Scirpus validus had relatively high DO (2.57 ±â€¯0.17 mg/L) and root biomass (16.42 ±â€¯0.18 g/m2), which resulted in the highest power density and voltage (19.5 mW/m2, 590 mV) as well as NB removal efficiency (93.9 %) among four reactors. High-throughput sequencing results suggested that electrochemically active bacteria (EAB) (e.g., Geobacter, Ferruginibacter) and dominant NB-degrading bacteria (e.g., Comamonas, Pseudomonas) could be enhanced by wetland plants, especially in CW-MFC with Scirpus validus. Therefore, Scirpus validus was a good option for simultaneously treating NB wastewater and producing bioelectricity. Raw and treated leachate samples were collected from different landfills in Greece and analyzed for several groups of emerging contaminants using high resolution mass spectrometric workflows to investigate the possible threat from their discharge to the aquatic environment. Fifty-eight compounds were detected; 2-OH-benzothiazole was found at 84 % of the samples and perfluorooctanoic acid at 68 %. Bisphenol A, valsartan and 2-OH-benzothiazole had the highest average concentrations in raw leachates, after biological treatment and after reverse osmosis, respectively. In untreated leachates, Risk Quotients > 1 were calculated for 35 and 18 compounds when maximum and average concentrations were used, indicating an ecological threat for the aquatic environment. Leachates' biological treatment partially removed COD and NH4+-N, as well as 52.3 % of total emerging contaminants. The application of reverse osmosis resulted in a 98 % removal of major pollutants, 99 % removal of total emerging contaminants and a significant decrease of ecotoxicity to Lemna minor. Beside the decrease of the detected micropollutants during treatment, RQs > 1 were still calculated for 13 and 3 compounds after biological treatment and reverse osmosis, respectively. Among these, special attention should be given to 2-OH-benzothiazole and bisphenol A that had RQ values much higher than 1 for all tested organisms. Semiconductor quantum dots (QDs) are nanocrystals used in diverse optoelectronics. At the end of their useful life they are likely to end up in landfills, where they could be mobilzed by infiltrating rain water. In this work, spectroscopic and light scattering techniques were employed to investigate the environmental fate of QDs exposed to leachates from Austrian landfill sites containing municipal solid and bulky wastes. Brij-58-coated CdSe QDs, a model for surfactant stabilized hydrophobic nanoparticles, primarily sedimented before being degraded on a slower timescale in the course of 6 months. In contrast, N-acetyl-l-cystein-coated CdTe QDs, which represent electrostatically stabilized nanoparticles with a small covalently linked stabilizing molecule, mainly underwent a degradation mechanism that was accelerated by temperature. 71-95 % of this QD type was still dispersed in all leachates after 6 months at low temperature. Leachate temperature and composition, such as the DOC, as well as the used particle coating determined the mechanistic route of clearance of sedimentation versus degradation. Our study shows, that mechanistic investigations are necessary to determine the persistence of nanoparticles depending on their coatings in waste matrices which can be further used to assess hazardous risks of such nanowastes. The outbreak of COVID-19 in China in December 2019 has been identified as a pandemic and a health emergency of global concern. Our objective was to investigate the prevalence and predictors of posttraumatic stress symptoms (PTSS) in China hardest-hit areas during COVID-19 outbreak, especially exploring the gender difference existing in PTSS. One month after the December 2019 COVID-19 outbreak in Wuhan China, we surveyed PTSS and sleep qualities among 285 residents in Wuhan and surrounding cities using the PTSD Checklist for DSM-5 (PCL-5) and 4 items from the Pittsburgh Sleep Quality Index (PSQI). Hierarchical regression analysis and non-parametric test were used to analyze the data. Results indicated that the prevalence of PTSS in China hardest-hit areas a month after the COVID-19 outbreak was 7%. Women reported significant higher PTSS in the domains of re-experiencing, negative alterations in cognition or mood, and hyper-arousal. Participants with better sleep quality or less frequency of early awakenings reported lower PTSS. Professional and effective mental health services should be designed in order to aid the psychological wellbeing of the population in affected areas, especially those living in hardest-hit areas, females and people with poor sleep quality. Recently, numerous studies concerning dye-labeled microplastic beads have reported on the end-of-life, environmental effects of microplastics because of their ubiquitous commercial usage. Less is understood about the toxicity and bioaccumulation of plastics other than microplastic beads, which can also harm the environment (e.g., fragments, fibers, foams, and films). https://www.selleckchem.com/products/icarm1.html Expanded polystyrene (EPS) is widespread in the environment owing to its many uses, however, limited research has been conducted on EPS foams. This study focuses on developing an efficient method for the preparation of micro-sized EPS foams for research purposes and compares it with previous microplastics preparation methods reported in 68 previous studies. It was demonstrated that the iced EPS block method (iced EPS block + water) generated larger quantities of smaller-sized EPS foams (20-200 and 200-500 μm) compared to the EPS + ice + water and EPS + water methods. The optimal protocol includes 1) iced EPS block preparation, 2) grinding and sieving, and 3) collecting.
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  • OBJECTIVES To estimate normal range of values for the contractility and relaxation parameters of inspiratory muscles and compare them by sex, age, nutritional status and level of physical activity in healthy children. WORKING HYPOTHESIS We hypothesized that healthy children present similar range of values for the contractility and relaxation parameters of inspiratory muscles. STUDY DESIGN Exploratory study conducted between 2017 and 2018. PATIENT-SUBJECT SELECTION Healthy children aged 6 to 11 years without history of respiratory, cardiac, cerebrovascular or neuromuscular disease as well as no nasal congestion, influenza or known septum deviation were included. METHODOLOGY Anthropometric, spirometry and respiratory muscle strength data were assessed. Maximum rate of pressure development (MRPD), maximum relaxation rate (MRR), time constant of decay curve (τ), contraction time (CT) and half-relaxation time (½ RT) were calculated from the nasal inspiratory pressure curve. RESULTS The sample was composed of 110 children (55 boys) with 1.045 as mean z-BMI-score. https://www.selleckchem.com/products/Masitinib-(AB1010).html MRPD range of values was 8.09% to 10.86% rise/10 ms, MRR range of values was 8.09% to 10.86% fall/10 ms, τ range of values was 36.41 to 49.88 ms, CT range of values was 200 to 276 ms, ½ RT range of values was 117.5 to 148 ms and MRPD/MRR range of values was 0.71 to 1.04. The contractility and relaxation parameters did not present significant differences among children when compared by sex, age, nutritional status, or level of physical activity groups (P > .05). CONCLUSIONS The contractility and relaxation parameters present similar values among children and they are not influenced by age, sex, nutritional status or physical activity level. © 2020 Wiley Periodicals, Inc.INTRODUCTION AND OBJECTIVES Patients with neuromuscular disease (NMD) are often exposed to ionizing radiations which could be reduced if a noninvasive and reliable diagnostic method is identified. The major aim of this study was to compare the use of chest X-ray (CXR) with lung ultrasound (LUS) in pediatric patients with NMD, to identify pulmonary atelectasis (PA). MATERIALS AND METHODS A prospective study was conducted on children affected by NMD. In all patients who underwent CXR, a LUS was also performed and results compared for the assessment of PA. RESULTS Forty children affected by NMD were enrolled. Spinal muscular atrophy type 1 was the most common NMD, followed by spinal muscular atrophy type 2 and congenital myopathies. More than half of the subjects presented PA, more prevalent in the lung left lower lobes. LUS agreed with CXR results (negative or positive for atelectasis) in 31 patients (77.5%). In two patients, an agreement evaluation was not possible due to non-conclusive LUS. Conversely, LUS disagreed with CXR in seven patients, four of which were positive for atelectasis. If only complete agreement was considered, the statistical analysis between CXR and LUS showed LUS sensitivity of 57%, LUS specificity of 82%, positive predictive value 80%, negative predictive value 61%. CONCLUSIONS This study suggests that the use of LUS should be recommended to early identify PA and reduce frequent ionizing exposition of these fragile patients. Finally, our study also suggests that LUS can provide relevant information for clinicians and respiratory physiotherapists. © 2020 Wiley Periodicals, Inc.The microstructural features of the tissue of long bones subjected to different biomechanical stresses could be a helpful tool for a better understanding of locomotor behavior in extant and extinct mammals, including equids. However, few researches have attempted to describe the bone tissue of extinct horses. In our study, we analyze and compare the histomorphometric features of the bone tissue in extant modern horses, Equus caballus, and Equus namadicus, a Pleistocene Indian extinct wild horse. The number, position and size of the osteons and Haversian canals of the bone tissue, classifiable as dense Haversian tissue, were considered for the comparison. The results obtained highlight some differences between the analyzed species, Equus caballus having fewer and bigger osteons than Equus namadicus. The microstructural differences may depend on the different lifestyles and environmental conditions characterizing the two species. The results obtained suggest that comparing the biomechanical properties of extinct and modern horse species may provide indirect information on their paleoenvironment. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.Low-elevation species can migrate towards higher elevations to survive in a warming world. However, animals' responses to hypoxia when migrating to high elevations have rarely been addressed. To identify the response of low-elevation lizards to high-elevation hypoxia, we collected field body temperatures (Tfb ) and operative temperatures (Te ) of lizards (Eremias argus) from a low elevation population (1036 m) and a high elevation population (2036 m), and then determined adult thermal physiology, embryonic development, and hatchling phenotypes after acclimating low-elevation lizards and incubating their eggs in conditions mimicking the low-elevation oxygen condition (18.5% O2 ) and high-elevation oxygen (hypoxic) condition (16.5% O2 ). Our study revealed that Tfb and Te were higher for the low elevation population compared to the high elevation population. We also found adults from low elevation acclimated to hypoxia preferred lower body temperatures, but did not show changes in locomotor performance or growth. In addition, hypoxia did not affect embryonic development (hatching time and success) or hatchling phenotypes (body size and locomotor performance). These results suggest that adult lizards from low elevations can respond to hypoxia-induced stress when migrating to high elevations by behaviourally thermoregulating to lower body temperatures in order to sustain normal functions. Similarly, low-elevation embryos can develop normally (with unchanged hatching success and offspring phenotypes) under the high-elevation hypoxic condition. This study highlights that low-elevation populations of a species that inhabits a range of elevations can buffer the impact of high-elevation hypoxic conditions to some degree and thus attain similar fitness to the source population. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.
    OBJECTIVES To estimate normal range of values for the contractility and relaxation parameters of inspiratory muscles and compare them by sex, age, nutritional status and level of physical activity in healthy children. WORKING HYPOTHESIS We hypothesized that healthy children present similar range of values for the contractility and relaxation parameters of inspiratory muscles. STUDY DESIGN Exploratory study conducted between 2017 and 2018. PATIENT-SUBJECT SELECTION Healthy children aged 6 to 11 years without history of respiratory, cardiac, cerebrovascular or neuromuscular disease as well as no nasal congestion, influenza or known septum deviation were included. METHODOLOGY Anthropometric, spirometry and respiratory muscle strength data were assessed. Maximum rate of pressure development (MRPD), maximum relaxation rate (MRR), time constant of decay curve (τ), contraction time (CT) and half-relaxation time (½ RT) were calculated from the nasal inspiratory pressure curve. RESULTS The sample was composed of 110 children (55 boys) with 1.045 as mean z-BMI-score. https://www.selleckchem.com/products/Masitinib-(AB1010).html MRPD range of values was 8.09% to 10.86% rise/10 ms, MRR range of values was 8.09% to 10.86% fall/10 ms, τ range of values was 36.41 to 49.88 ms, CT range of values was 200 to 276 ms, ½ RT range of values was 117.5 to 148 ms and MRPD/MRR range of values was 0.71 to 1.04. The contractility and relaxation parameters did not present significant differences among children when compared by sex, age, nutritional status, or level of physical activity groups (P > .05). CONCLUSIONS The contractility and relaxation parameters present similar values among children and they are not influenced by age, sex, nutritional status or physical activity level. © 2020 Wiley Periodicals, Inc.INTRODUCTION AND OBJECTIVES Patients with neuromuscular disease (NMD) are often exposed to ionizing radiations which could be reduced if a noninvasive and reliable diagnostic method is identified. The major aim of this study was to compare the use of chest X-ray (CXR) with lung ultrasound (LUS) in pediatric patients with NMD, to identify pulmonary atelectasis (PA). MATERIALS AND METHODS A prospective study was conducted on children affected by NMD. In all patients who underwent CXR, a LUS was also performed and results compared for the assessment of PA. RESULTS Forty children affected by NMD were enrolled. Spinal muscular atrophy type 1 was the most common NMD, followed by spinal muscular atrophy type 2 and congenital myopathies. More than half of the subjects presented PA, more prevalent in the lung left lower lobes. LUS agreed with CXR results (negative or positive for atelectasis) in 31 patients (77.5%). In two patients, an agreement evaluation was not possible due to non-conclusive LUS. Conversely, LUS disagreed with CXR in seven patients, four of which were positive for atelectasis. If only complete agreement was considered, the statistical analysis between CXR and LUS showed LUS sensitivity of 57%, LUS specificity of 82%, positive predictive value 80%, negative predictive value 61%. CONCLUSIONS This study suggests that the use of LUS should be recommended to early identify PA and reduce frequent ionizing exposition of these fragile patients. Finally, our study also suggests that LUS can provide relevant information for clinicians and respiratory physiotherapists. © 2020 Wiley Periodicals, Inc.The microstructural features of the tissue of long bones subjected to different biomechanical stresses could be a helpful tool for a better understanding of locomotor behavior in extant and extinct mammals, including equids. However, few researches have attempted to describe the bone tissue of extinct horses. In our study, we analyze and compare the histomorphometric features of the bone tissue in extant modern horses, Equus caballus, and Equus namadicus, a Pleistocene Indian extinct wild horse. The number, position and size of the osteons and Haversian canals of the bone tissue, classifiable as dense Haversian tissue, were considered for the comparison. The results obtained highlight some differences between the analyzed species, Equus caballus having fewer and bigger osteons than Equus namadicus. The microstructural differences may depend on the different lifestyles and environmental conditions characterizing the two species. The results obtained suggest that comparing the biomechanical properties of extinct and modern horse species may provide indirect information on their paleoenvironment. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.Low-elevation species can migrate towards higher elevations to survive in a warming world. However, animals' responses to hypoxia when migrating to high elevations have rarely been addressed. To identify the response of low-elevation lizards to high-elevation hypoxia, we collected field body temperatures (Tfb ) and operative temperatures (Te ) of lizards (Eremias argus) from a low elevation population (1036 m) and a high elevation population (2036 m), and then determined adult thermal physiology, embryonic development, and hatchling phenotypes after acclimating low-elevation lizards and incubating their eggs in conditions mimicking the low-elevation oxygen condition (18.5% O2 ) and high-elevation oxygen (hypoxic) condition (16.5% O2 ). Our study revealed that Tfb and Te were higher for the low elevation population compared to the high elevation population. We also found adults from low elevation acclimated to hypoxia preferred lower body temperatures, but did not show changes in locomotor performance or growth. In addition, hypoxia did not affect embryonic development (hatching time and success) or hatchling phenotypes (body size and locomotor performance). These results suggest that adult lizards from low elevations can respond to hypoxia-induced stress when migrating to high elevations by behaviourally thermoregulating to lower body temperatures in order to sustain normal functions. Similarly, low-elevation embryos can develop normally (with unchanged hatching success and offspring phenotypes) under the high-elevation hypoxic condition. This study highlights that low-elevation populations of a species that inhabits a range of elevations can buffer the impact of high-elevation hypoxic conditions to some degree and thus attain similar fitness to the source population. This article is protected by copyright. All rights reserved. This article is protected by copyright. All rights reserved.
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  • Idiopathic adulthood ductopenia (IAD) is a chronic small duct cholestatic biliary disease that is characterized by the loss of interlobular bile ducts. It is diagnosed when there is biochemical evidence of cholestatic liver disease, ductopenia on liver biopsy, and no other identifiable cause of cholestasis. We present a patient with 10 days of progressive abdominal pain, jaundice, and worsening liver function tests who advanced to fulminant liver failure with no apparent underlying cause. He was found to have cirrhosis, with biopsy demonstrative of ductopenia, consistent with idiopathic adulthood ductopenia, which is a rare etiology of cirrhosis but should be considered when the typical workup yields no answer. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Achalasia is an esophageal motility disorder characterized by a lack of peristalsis and an increased lower esophageal sphincter pressure that does not relax with swallowing. High-resolution manometry (HRM), a valuable diagnostic tool for esophageal disorders, often comes with software for automated study interpretation. Although helpful, there are certain caveats in the diagnostic criteria for achalasia which the software may miss. We highlight 2 patients in whom software analysis of HRM studies resulted in misdiagnosis of achalasia as manometrically detected nonachalasia esophagogastric junction outflow obstruction and emphasize the importance of manual interpretation of HRM data by clinicians. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Eosinophilic enterocolitis is a rare condition representing the least frequent manifestation of eosinophilic gastrointestinal disorders. We report a 49-year-old man who presented with abdominal pain, diarrhea, and intractable vomiting for 2 weeks. Abdominal computed tomography demonstrated gastric wall thickening with mural wall thickening of the small intestine and colon. https://www.selleckchem.com/products/guanidine-thiocyanate.html Endoscopy revealed gastric outlet obstruction because of luminal stenosis from duodenal edema. Peripheral eosinophilia, endoscopic mucosal biopsies, and exclusion of differential diagnoses confirmed eosinophilic enterocolitis. The patient was successfully treated with a 4-week prednisone taper. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.We report a case of recurrent gastrointestinal bleeding in the setting of diffuse duodenal and colorectal varices. These varices were secondary to either congenital absence of the portal vein or chronic occlusion of the portal vein leading to cavernous transformation of a collateral network of varices. He was acutely managed with injection of N-butyl-2-cyanoacrylate into a large complex of duodenal varices. His hospital course was complicated by a postprocedural gastrointestinal bleed within the first 24 hours after the procedure arising from a new duodenal ulcer at the site of injection, likely secondary to ischemia after obliteration of the varices. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Transplantation of hepatitis C virus (HCV)-positive organs has undergone a paradigm shift because of the advent of direct-acting antivirals. We present the case of a 57-year-old man successfully treated initially with pegylated interferon and ribavirin after HCV recurrence postliver transplantation. He subsequently developed end-stage renal disease and received a genotype 1a HCV-positive kidney transplant. A 12-week course of ledipasvir/sofosbuvir and low-dose ribavirin was initiated and sustained virologic response was achieved. This constitutes the first reported case of a patient successfully treated for HCV a second time after receiving an HCV-positive organ. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Myasthenia gravis (MG) is an autoimmune disease that affects the postsynaptic membrane at the neuromuscular junction. In MG, antibodies bind to acetylcholine receptors inducing muscle weakness. The weakness typically increases with exercise and repetitive muscle use. Improvement of muscular weakness after rest and/or administration of anticholinesterase drugs (edrophonium) are characteristic of MG. We report a patient with unexplained dysphagia, dysphonia, and dysarthria, whose diagnosis was suggested by high-resolution esophageal motility and edrophonium infusion. We highlight the importance of dysphagia as presenting or dominant symptom in MG and review the esophageal motility findings in this rare, but treatable disorder. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Appendiceal mucinous neoplasms are rarely diagnosed in pediatric patients. We present a 16-year-old adolescent boy with severe Crohn's disease who was not on maintenance medication for his underlying diagnosis. He was referred for nutritional optimization and small bowel obstruction. An emergent laparoscopic ileocecectomy with primary ileocolonic anastomosis was carried out secondary to acute peritonitis. Small bowel pathologic findings were consistent with Crohn's disease with low-grade appendiceal mucinous neoplasm (LAMN) of the appendix. Written work prepared by employees of the Federal Government as part of their official duties is, under the U.S. Copyright Act, a “work of the United States Government” for which copyright protection under Title 17 of the United States Code is not available. As such, copyright does not extend to the contributions of employees of the Federal Government.Endoscopic full-thickness resection device (FTRD) is a new and promising device for endoscopic full-thickness resection of gastrointestinal lesions. Limited data is available regarding its role in endoscopic full-thickness resection of upper gastrointestinal lesions compared with its well-studied role in colorectal lesions. Colonic FTRD is a preloaded device with a large cap which limits peroral insertion. A 49-year-old woman was referred to us for submucosal gastric lesion resection. Gradual dilatation of the upper esophagus was performed before successful advancement of the endoscope mounted with a FTRD system into the stomach. The lesion was successfully resected with no complications. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.
    Idiopathic adulthood ductopenia (IAD) is a chronic small duct cholestatic biliary disease that is characterized by the loss of interlobular bile ducts. It is diagnosed when there is biochemical evidence of cholestatic liver disease, ductopenia on liver biopsy, and no other identifiable cause of cholestasis. We present a patient with 10 days of progressive abdominal pain, jaundice, and worsening liver function tests who advanced to fulminant liver failure with no apparent underlying cause. He was found to have cirrhosis, with biopsy demonstrative of ductopenia, consistent with idiopathic adulthood ductopenia, which is a rare etiology of cirrhosis but should be considered when the typical workup yields no answer. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Achalasia is an esophageal motility disorder characterized by a lack of peristalsis and an increased lower esophageal sphincter pressure that does not relax with swallowing. High-resolution manometry (HRM), a valuable diagnostic tool for esophageal disorders, often comes with software for automated study interpretation. Although helpful, there are certain caveats in the diagnostic criteria for achalasia which the software may miss. We highlight 2 patients in whom software analysis of HRM studies resulted in misdiagnosis of achalasia as manometrically detected nonachalasia esophagogastric junction outflow obstruction and emphasize the importance of manual interpretation of HRM data by clinicians. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Eosinophilic enterocolitis is a rare condition representing the least frequent manifestation of eosinophilic gastrointestinal disorders. We report a 49-year-old man who presented with abdominal pain, diarrhea, and intractable vomiting for 2 weeks. Abdominal computed tomography demonstrated gastric wall thickening with mural wall thickening of the small intestine and colon. https://www.selleckchem.com/products/guanidine-thiocyanate.html Endoscopy revealed gastric outlet obstruction because of luminal stenosis from duodenal edema. Peripheral eosinophilia, endoscopic mucosal biopsies, and exclusion of differential diagnoses confirmed eosinophilic enterocolitis. The patient was successfully treated with a 4-week prednisone taper. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.We report a case of recurrent gastrointestinal bleeding in the setting of diffuse duodenal and colorectal varices. These varices were secondary to either congenital absence of the portal vein or chronic occlusion of the portal vein leading to cavernous transformation of a collateral network of varices. He was acutely managed with injection of N-butyl-2-cyanoacrylate into a large complex of duodenal varices. His hospital course was complicated by a postprocedural gastrointestinal bleed within the first 24 hours after the procedure arising from a new duodenal ulcer at the site of injection, likely secondary to ischemia after obliteration of the varices. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Transplantation of hepatitis C virus (HCV)-positive organs has undergone a paradigm shift because of the advent of direct-acting antivirals. We present the case of a 57-year-old man successfully treated initially with pegylated interferon and ribavirin after HCV recurrence postliver transplantation. He subsequently developed end-stage renal disease and received a genotype 1a HCV-positive kidney transplant. A 12-week course of ledipasvir/sofosbuvir and low-dose ribavirin was initiated and sustained virologic response was achieved. This constitutes the first reported case of a patient successfully treated for HCV a second time after receiving an HCV-positive organ. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Myasthenia gravis (MG) is an autoimmune disease that affects the postsynaptic membrane at the neuromuscular junction. In MG, antibodies bind to acetylcholine receptors inducing muscle weakness. The weakness typically increases with exercise and repetitive muscle use. Improvement of muscular weakness after rest and/or administration of anticholinesterase drugs (edrophonium) are characteristic of MG. We report a patient with unexplained dysphagia, dysphonia, and dysarthria, whose diagnosis was suggested by high-resolution esophageal motility and edrophonium infusion. We highlight the importance of dysphagia as presenting or dominant symptom in MG and review the esophageal motility findings in this rare, but treatable disorder. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.Appendiceal mucinous neoplasms are rarely diagnosed in pediatric patients. We present a 16-year-old adolescent boy with severe Crohn's disease who was not on maintenance medication for his underlying diagnosis. He was referred for nutritional optimization and small bowel obstruction. An emergent laparoscopic ileocecectomy with primary ileocolonic anastomosis was carried out secondary to acute peritonitis. Small bowel pathologic findings were consistent with Crohn's disease with low-grade appendiceal mucinous neoplasm (LAMN) of the appendix. Written work prepared by employees of the Federal Government as part of their official duties is, under the U.S. Copyright Act, a “work of the United States Government” for which copyright protection under Title 17 of the United States Code is not available. As such, copyright does not extend to the contributions of employees of the Federal Government.Endoscopic full-thickness resection device (FTRD) is a new and promising device for endoscopic full-thickness resection of gastrointestinal lesions. Limited data is available regarding its role in endoscopic full-thickness resection of upper gastrointestinal lesions compared with its well-studied role in colorectal lesions. Colonic FTRD is a preloaded device with a large cap which limits peroral insertion. A 49-year-old woman was referred to us for submucosal gastric lesion resection. Gradual dilatation of the upper esophagus was performed before successful advancement of the endoscope mounted with a FTRD system into the stomach. The lesion was successfully resected with no complications. © 2020 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of The American College of Gastroenterology.
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