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006) of the Chester test compared with baseline values. The intervention had no impact on body weight or body fat but reduced waist circumference (Pre, 94 ± 8 cm; Post, 91 ± 9 cm; p = 0.006). Thus, traditional Scottish dancing should be advocated to sedentary postmenopausal women, emphasising its potential in meeting current physical activity recommendations in relation of weekly duration and exercise intensity and improving cardiorespiratory fitness.Astaxanthin is a natural product gaining increasing attention due to its safety and anti-cancer properties. In this study, we investigated the mechanisms of the anti-cancer effects of astaxanthin on prostate cancer (PCa) cell lines using aggressive PCa DU145 cells. Also an instantaneous silenced cell line (si-STAT3) derived from DU145 and a control cell line (si-NK) were used for the MTT and colony formation assays to determine the role of astaxanthin in proliferation and colony formation abilities. Flow cytometry assays were used to detect the apoptosis of tumor cells. Migration and invasion assays detected the weakening of the respective abilities. Western blot and RT-PCR tests detected the levels of STAT3 protein and mRNA. Astaxanthin resulted in suppression of the proliferation of DU145 cells and the level of STAT3. The treatment of DU145 cells with astaxanthin decreased the cloning ability, increased the apoptosis percentage and weakened the abilities of migration and invasion of the cells. Furthermore, astaxanthin reduced the expression of STAT3 at protein and mRNA levels. The effects were enhanced when astaxanthin and si-STAT3 were combined. The results of animal experiments were consistent with the results in cells. Thus, astaxanthin inhibits the proliferation of DU145 cells by reducing the expression of STAT3.An association between high pre-pregnancy body mass index (BMI) and early breastfeeding cessation has been previously observed, but studies examining the effect of underweight are still scant and remain inconclusive. This study analyzed data from a nationally representative cohort of 18,312 women (mean age 28.3 years; underweight 20.1%; overweight 8.2%; obesity 1.9%) who delivered singleton live births in 2005 in Taiwan. Comprehensive face-to-face interviews and surveys were completed at 6 and 18 months postpartum. https://www.selleckchem.com/products/AZD0530.html BMI status and breastfeeding duration were calculated from the self-reported data in the questionnaires. In the adjusted ordinal logistic regression model, maternal obesity and underweight had a higher odds of shorter breastfeeding duration compared with normal-weight women. The risk of breastfeeding cessation was significantly higher in underweight women than in normal-weight women after adjustments in the logistic regression model (2 m aOR = 1.11, 95% CI = 1.03-1.2; 4 m aOR = 1.32, 95% CI = 1.21-1.43; 6 m aOR = 1.3, 95% CI = 1.18-1.42). Our findings indicated that maternal underweight and obesity are associated with earlier breastfeeding cessation in Taiwan. Optimizing maternal BMI during the pre-conception period is essential, and future interventions to promote and support breastfeeding in underweight mothers are necessary to improve maternal and child health.Rheumatoid arthritis (RA) is a chronic inflammatory disease that leads to joint destruction [...].Amphibians are widely distributed on different continents, except for the polar regions. They are important sources for the isolation, purification and characterization of natural compounds, including peptides with various functions. Innate immune antimicrobial peptides (AMPs) play a critical role in warding off invading pathogens, such as bacteria, fungi, parasites, and viruses. They may also have other biological functions such as endotoxin neutralization, chemotaxis, anti-inflammation, and wound healing. This article documents a bioinformatic analysis of over 1000 amphibian antimicrobial peptides registered in the Antimicrobial Peptide Database (APD) in the past 18 years. These anuran peptides were discovered in Africa, Asia, Australia, Europe, and America from 1985 to 2019. Genomic and peptidomic studies accelerated the discovery pace and underscored the necessity in establishing criteria for peptide entry into the APD. A total of 99.9% of the anuran antimicrobial peptides are less than 50 amino acids with an average length of 24 and a net charge of +2.5. Interestingly, the various amphibian peptide families (e.g., temporins, brevinins, esculentins) can be connected through multiple length-dependent relationships. With an increase in length, peptide net charge increases, while the hydrophobic content decreases. In addition, glycine, leucine, lysine, and proline all show linear correlations with peptide length. These correlations improve our understanding of amphibian peptides and may be useful for prediction and design of new linear peptides with potential applications in treating infectious diseases, cancer and diabetes.Unnecessary antibiotic prescribing contributes to Antimicrobial Resistance posing a major public health risk. Estimates suggest as many as half of antibiotics prescribed for respiratory infections may be unnecessary. We conducted a three-armed unblinded cluster randomized controlled trial (ISRCTN trial registry 83322985). Interventions were a commitment poster (CP) advocating safe antibiotic prescribing or a CP plus an antimicrobial stewardship message (AM) on telephone appointment booking lines, tested against a usual care control group. The primary outcome measure was antibiotic item dispensing rates per 1000 population adjusted for practice demographics. The outcome measures for post-hoc analysis were dispensing rates of antibiotics usually prescribed for upper respiratory tract infections and broad spectrum antibiotics. In total, 196 practice units were randomized to usual care (n = 60), CP (n = 66), and CP&AM (n = 70). There was no effect on the overall dispensing rates for either interventions compared to usual care (CP 5.673, 95%CI -9.768 to 21.113, p = 0.458; CP&AM, -12.575, 95%CI -30.726 to 5.576, p = 0.167). Secondary analysis, which included pooling the data into one model, showed a significant effect of the AM (-18.444, 95%CI -32.596 to -4.292, p = 0.012). Fewer penicillins and macrolides were prescribed in the CP&AM intervention compared to usual care (-12.996, 95% CI -34.585 to -4.913, p = 0.018). Commitment posters did not reduce antibiotic prescribing. An automated patient antimicrobial stewardship message showed effects and requires further testing.
006) of the Chester test compared with baseline values. The intervention had no impact on body weight or body fat but reduced waist circumference (Pre, 94 ± 8 cm; Post, 91 ± 9 cm; p = 0.006). Thus, traditional Scottish dancing should be advocated to sedentary postmenopausal women, emphasising its potential in meeting current physical activity recommendations in relation of weekly duration and exercise intensity and improving cardiorespiratory fitness.Astaxanthin is a natural product gaining increasing attention due to its safety and anti-cancer properties. In this study, we investigated the mechanisms of the anti-cancer effects of astaxanthin on prostate cancer (PCa) cell lines using aggressive PCa DU145 cells. Also an instantaneous silenced cell line (si-STAT3) derived from DU145 and a control cell line (si-NK) were used for the MTT and colony formation assays to determine the role of astaxanthin in proliferation and colony formation abilities. Flow cytometry assays were used to detect the apoptosis of tumor cells. Migration and invasion assays detected the weakening of the respective abilities. Western blot and RT-PCR tests detected the levels of STAT3 protein and mRNA. Astaxanthin resulted in suppression of the proliferation of DU145 cells and the level of STAT3. The treatment of DU145 cells with astaxanthin decreased the cloning ability, increased the apoptosis percentage and weakened the abilities of migration and invasion of the cells. Furthermore, astaxanthin reduced the expression of STAT3 at protein and mRNA levels. The effects were enhanced when astaxanthin and si-STAT3 were combined. The results of animal experiments were consistent with the results in cells. Thus, astaxanthin inhibits the proliferation of DU145 cells by reducing the expression of STAT3.An association between high pre-pregnancy body mass index (BMI) and early breastfeeding cessation has been previously observed, but studies examining the effect of underweight are still scant and remain inconclusive. This study analyzed data from a nationally representative cohort of 18,312 women (mean age 28.3 years; underweight 20.1%; overweight 8.2%; obesity 1.9%) who delivered singleton live births in 2005 in Taiwan. Comprehensive face-to-face interviews and surveys were completed at 6 and 18 months postpartum. https://www.selleckchem.com/products/AZD0530.html BMI status and breastfeeding duration were calculated from the self-reported data in the questionnaires. In the adjusted ordinal logistic regression model, maternal obesity and underweight had a higher odds of shorter breastfeeding duration compared with normal-weight women. The risk of breastfeeding cessation was significantly higher in underweight women than in normal-weight women after adjustments in the logistic regression model (2 m aOR = 1.11, 95% CI = 1.03-1.2; 4 m aOR = 1.32, 95% CI = 1.21-1.43; 6 m aOR = 1.3, 95% CI = 1.18-1.42). Our findings indicated that maternal underweight and obesity are associated with earlier breastfeeding cessation in Taiwan. Optimizing maternal BMI during the pre-conception period is essential, and future interventions to promote and support breastfeeding in underweight mothers are necessary to improve maternal and child health.Rheumatoid arthritis (RA) is a chronic inflammatory disease that leads to joint destruction [...].Amphibians are widely distributed on different continents, except for the polar regions. They are important sources for the isolation, purification and characterization of natural compounds, including peptides with various functions. Innate immune antimicrobial peptides (AMPs) play a critical role in warding off invading pathogens, such as bacteria, fungi, parasites, and viruses. They may also have other biological functions such as endotoxin neutralization, chemotaxis, anti-inflammation, and wound healing. This article documents a bioinformatic analysis of over 1000 amphibian antimicrobial peptides registered in the Antimicrobial Peptide Database (APD) in the past 18 years. These anuran peptides were discovered in Africa, Asia, Australia, Europe, and America from 1985 to 2019. Genomic and peptidomic studies accelerated the discovery pace and underscored the necessity in establishing criteria for peptide entry into the APD. A total of 99.9% of the anuran antimicrobial peptides are less than 50 amino acids with an average length of 24 and a net charge of +2.5. Interestingly, the various amphibian peptide families (e.g., temporins, brevinins, esculentins) can be connected through multiple length-dependent relationships. With an increase in length, peptide net charge increases, while the hydrophobic content decreases. In addition, glycine, leucine, lysine, and proline all show linear correlations with peptide length. These correlations improve our understanding of amphibian peptides and may be useful for prediction and design of new linear peptides with potential applications in treating infectious diseases, cancer and diabetes.Unnecessary antibiotic prescribing contributes to Antimicrobial Resistance posing a major public health risk. Estimates suggest as many as half of antibiotics prescribed for respiratory infections may be unnecessary. We conducted a three-armed unblinded cluster randomized controlled trial (ISRCTN trial registry 83322985). Interventions were a commitment poster (CP) advocating safe antibiotic prescribing or a CP plus an antimicrobial stewardship message (AM) on telephone appointment booking lines, tested against a usual care control group. The primary outcome measure was antibiotic item dispensing rates per 1000 population adjusted for practice demographics. The outcome measures for post-hoc analysis were dispensing rates of antibiotics usually prescribed for upper respiratory tract infections and broad spectrum antibiotics. In total, 196 practice units were randomized to usual care (n = 60), CP (n = 66), and CP&AM (n = 70). There was no effect on the overall dispensing rates for either interventions compared to usual care (CP 5.673, 95%CI -9.768 to 21.113, p = 0.458; CP&AM, -12.575, 95%CI -30.726 to 5.576, p = 0.167). Secondary analysis, which included pooling the data into one model, showed a significant effect of the AM (-18.444, 95%CI -32.596 to -4.292, p = 0.012). Fewer penicillins and macrolides were prescribed in the CP&AM intervention compared to usual care (-12.996, 95% CI -34.585 to -4.913, p = 0.018). Commitment posters did not reduce antibiotic prescribing. An automated patient antimicrobial stewardship message showed effects and requires further testing.0 Commentaires 0 Parts 274 Vue 0 AperçuConnectez-vous pour aimer, partager et commenter! -
Understanding risks to terrestrial wildlife species from exposure to chemicals in the environment requires knowledge of how species make habitat decisions and how subsequent exposure events occur. Heterogeneity of chemical distribution and of habitat quality can influence exposure. Previous studies in birds have shown that individually based, spatially explicit models can be useful in predicting exposure and risk; however, studies investigating these influences in small mammals with limited ranges have been lacking. Here we test a spatially explicit, individually based exposure model (Spatially Explicit Exposure Model [SEEM]) in which model predictions based on life history traits, habitat preferences, and varying soil Pb concentrations are used and compared to those with field-collected blood or tissue Pb concentrations in small (e.g., Peromyscus, Blarina spp.) and medium-sized mammalian species (e.g., Lepus spp.) at 3 Pb-contaminated sites. These species were chosen because they were expected to be present perience the environment in limited spatial contexts, a scale at which habitat may not change significantly. Integr Environ Assess Manag 2021;17259-272. Published 2020. This article is a US Government work and is in the public domain in the USA.Multidrug-resistant bacterial infections have become an important cause of clinical death in the twenty-first century. **** effort has been made to overcome this challenge. The discovery of novel antimicrobial compounds, as well as the rational use of antibacterial drugs with different structure types and mechanisms, is helping to deal with bacterial resistance. Currently, pyrimidine-containing agents are the major areas of new antibacterial drug discovery. Given their good activities and diverse mechanisms of action, many pyrimidine-containing heterocyclic compounds have become the focus of interest for many scientists. In addition, pyrimidine structure is an important part of many endogenous substances, which is an advantage that allows pyrimidine derivatives to interact with genetic materials, enzymes and other biopolymeric substances in the cell. Scientists have focused on the discovery and structural optimization of pyrimidine derivatives, which has resulted in the discovery of many novel pyrimidine derivatives with intriguing profiles. Herein we summarize the therapeutic potentials of pyrimidine compounds that are promising for antimicrobial applications over the last decade. https://www.selleckchem.com/products/azd9291.html In particular, the relationships between the structures of modified pyrimidines and their antimicrobial activity are systematically discussed.A ruthenium-catalyzed formal anti-Markovnikov hydroamination of allylic alcohols for the synthesis of chiral γ-amino alcohols is presented. Proceeding via an asymmetric hydrogen-borrowing process, the catalysis allows racemic secondary allylic alcohols to react with various amines, affording enantiomerically enriched chiral γ-amino alcohols with broad substrate scope and excellent enantioselectivities (68 examples, up to >99 % ee).Parents and offspring have different optima for the level of parental resource allocation and the timing of nutritional independence. Theoretical models assume that either parents or offspring control the allocation of resources within a brood; however, control may also be mutual. Here, we investigate whether the resolution of parent-offspring conflict is biased towards cues from either the parents' or the offspring's behaviour, or whether the conflict is under mutual control. Importantly, we considered potential shifts in the power continuum over the entire period of juvenile dependency. The burying beetle Nicrophorus vespilloides parents provision food for the larvae, and the larvae solicit food from their parents with conspicuous begging displays. Both parental and larval behaviours change as larvae age. We repeatedly manipulated the age of the brood females care for, thereby creating mismatch between the age of the foster brood and expected age of the brood from the female parent's perspective, over the period of dependency in juvenile development. We found that females adjusted the total amount of provisioning based on the actual age of the brood. However, both the parent and the offspring influenced the levels of food provisioning, which followed neither the expected age of the brood from the parent's perspective nor offspring age. Our results suggest that there is mutual control over parental care, thus contradicting the dichotomous view of control over parental care. We suggest that the mutual influence of both parents and the offspring should be taken into account in development of future theory, as well as empirical studies.Psittaciformes (parrots, cockatoos and lorikeets) comprise one of the most colourful clades of birds. Their unique pigments and safe cavity nesting habits are two potential explanations for their colourful character. However, plumage colour varies substantially between parrot species and sometimes also between males and females of the same species. Here, we use comparative analyses to evaluate what factors correlate with colour elaboration, colour diversity and sexual dichromatism. Specifically, we test the association between different aspects of parrot colouration and (a) the intensity of sexual selection and social interactions, (b) variation along the slow-fast life-history continuum and (c) climatic variation. We show that larger species and species that live in warm environments display more elaborated colours, yet smaller species have higher levels of sexual dichromatism. Larger parrots tend to have darker and more blue and red colours. Parrots that live in wetter environments are darker and redder, whereas species inhabiting warm regions have more blue plumage colours. In general, each of the variables we considered explain small to moderate amounts of variation in parrot colouration (up to 15%). Our data suggest that sexual selection may be acting more strongly on males in small, short-lived parrots leading to sexual dichromatism. More elaborate colouration in both males and females of the larger, long-lived species with slow tropical life histories suggests that mutual mate choice, social selection and reduced selection for crypsis may be important in these species, as has been shown for passerines.
Understanding risks to terrestrial wildlife species from exposure to chemicals in the environment requires knowledge of how species make habitat decisions and how subsequent exposure events occur. Heterogeneity of chemical distribution and of habitat quality can influence exposure. Previous studies in birds have shown that individually based, spatially explicit models can be useful in predicting exposure and risk; however, studies investigating these influences in small mammals with limited ranges have been lacking. Here we test a spatially explicit, individually based exposure model (Spatially Explicit Exposure Model [SEEM]) in which model predictions based on life history traits, habitat preferences, and varying soil Pb concentrations are used and compared to those with field-collected blood or tissue Pb concentrations in small (e.g., Peromyscus, Blarina spp.) and medium-sized mammalian species (e.g., Lepus spp.) at 3 Pb-contaminated sites. These species were chosen because they were expected to be present perience the environment in limited spatial contexts, a scale at which habitat may not change significantly. Integr Environ Assess Manag 2021;17259-272. Published 2020. This article is a US Government work and is in the public domain in the USA.Multidrug-resistant bacterial infections have become an important cause of clinical death in the twenty-first century. Much effort has been made to overcome this challenge. The discovery of novel antimicrobial compounds, as well as the rational use of antibacterial drugs with different structure types and mechanisms, is helping to deal with bacterial resistance. Currently, pyrimidine-containing agents are the major areas of new antibacterial drug discovery. Given their good activities and diverse mechanisms of action, many pyrimidine-containing heterocyclic compounds have become the focus of interest for many scientists. In addition, pyrimidine structure is an important part of many endogenous substances, which is an advantage that allows pyrimidine derivatives to interact with genetic materials, enzymes and other biopolymeric substances in the cell. Scientists have focused on the discovery and structural optimization of pyrimidine derivatives, which has resulted in the discovery of many novel pyrimidine derivatives with intriguing profiles. Herein we summarize the therapeutic potentials of pyrimidine compounds that are promising for antimicrobial applications over the last decade. https://www.selleckchem.com/products/azd9291.html In particular, the relationships between the structures of modified pyrimidines and their antimicrobial activity are systematically discussed.A ruthenium-catalyzed formal anti-Markovnikov hydroamination of allylic alcohols for the synthesis of chiral γ-amino alcohols is presented. Proceeding via an asymmetric hydrogen-borrowing process, the catalysis allows racemic secondary allylic alcohols to react with various amines, affording enantiomerically enriched chiral γ-amino alcohols with broad substrate scope and excellent enantioselectivities (68 examples, up to >99 % ee).Parents and offspring have different optima for the level of parental resource allocation and the timing of nutritional independence. Theoretical models assume that either parents or offspring control the allocation of resources within a brood; however, control may also be mutual. Here, we investigate whether the resolution of parent-offspring conflict is biased towards cues from either the parents' or the offspring's behaviour, or whether the conflict is under mutual control. Importantly, we considered potential shifts in the power continuum over the entire period of juvenile dependency. The burying beetle Nicrophorus vespilloides parents provision food for the larvae, and the larvae solicit food from their parents with conspicuous begging displays. Both parental and larval behaviours change as larvae age. We repeatedly manipulated the age of the brood females care for, thereby creating mismatch between the age of the foster brood and expected age of the brood from the female parent's perspective, over the period of dependency in juvenile development. We found that females adjusted the total amount of provisioning based on the actual age of the brood. However, both the parent and the offspring influenced the levels of food provisioning, which followed neither the expected age of the brood from the parent's perspective nor offspring age. Our results suggest that there is mutual control over parental care, thus contradicting the dichotomous view of control over parental care. We suggest that the mutual influence of both parents and the offspring should be taken into account in development of future theory, as well as empirical studies.Psittaciformes (parrots, cockatoos and lorikeets) comprise one of the most colourful clades of birds. Their unique pigments and safe cavity nesting habits are two potential explanations for their colourful character. However, plumage colour varies substantially between parrot species and sometimes also between males and females of the same species. Here, we use comparative analyses to evaluate what factors correlate with colour elaboration, colour diversity and sexual dichromatism. Specifically, we test the association between different aspects of parrot colouration and (a) the intensity of sexual selection and social interactions, (b) variation along the slow-fast life-history continuum and (c) climatic variation. We show that larger species and species that live in warm environments display more elaborated colours, yet smaller species have higher levels of sexual dichromatism. Larger parrots tend to have darker and more blue and red colours. Parrots that live in wetter environments are darker and redder, whereas species inhabiting warm regions have more blue plumage colours. In general, each of the variables we considered explain small to moderate amounts of variation in parrot colouration (up to 15%). Our data suggest that sexual selection may be acting more strongly on males in small, short-lived parrots leading to sexual dichromatism. More elaborate colouration in both males and females of the larger, long-lived species with slow tropical life histories suggests that mutual mate choice, social selection and reduced selection for crypsis may be important in these species, as has been shown for passerines.0 Commentaires 0 Parts 291 Vue 0 Aperçu -
iniae in US aquaculture. © 2020 John Wiley & Sons Ltd.OBJECTIVES Psychotropic medication is commonly used among people with dementia (PWD), but it shows modest efficacy and it has been associated with severe adverse events. Hospitalizations are an opportunity for medication management as well as treatment recommendations for outpatient physicians. The aim of this study was to asses factors associated with new use of psychotropic medication after hospitalization among PWD. METHODS We conducted a retrospective dynamic cohort study from 2004 to 2015 using claims data from a German health insurance company. PWD were identified by an algorithm that included ICD-10 diagnosis and diagnostic measures. The medication classes included were antidepressants, antipsychotics, anxiolytics or hypnotics/sedatives, and Alzheimer's medication. The assessment period was up to 30 days after discharge from the hospital across four hospitalizations. https://www.selleckchem.com/products/1-thioglycerol.html RESULTS The main predictors for new use of psychotropic medication were similar across medication classes. Neuropsychiatric symptoms (NPSves, and Alzheimer's medication for more than 6 weeks. Delirium and neuropsychiatric symptoms were associated with significantly increased odds of new psychotropic medication use. Hospital stays due to dementia and the need of care were predictors for new use of psychotropic medication. © 2020 The Authors. International Journal of Geriatric Psychiatry published by John Wiley & Sons Ltd.The presence of age-related neuropathology characteristic of Alzheimer's disease (AD) in people with Down syndrome (DS) is well-established. However, the early symptoms of dementia may be atypical and appear related to dysfunction of prefrontal circuitry. OBJECTIVE To characterize the initial informant reported age-related neuropsychiatric symptoms of dementia in people with DS, and their relationship to AD and frontal lobe function. METHODS Non-amnestic informant reported symptoms (disinhibition, apathy, and executive dysfunction) and amnestic symptoms from the CAMDEX-DS informant interview were analyzed in a cross-sectional cohort of 162 participants with DS over 30 years of age, divided into three groups stable cognition, prodromal dementia, and AD. To investigate age-related symptoms prior to evidence of prodromal dementia we stratified the stable cognition group by age. RESULTS Amnestic and non-amnestic symptoms were present before evidence of informant-reported cognitive decline. In those who received the diagnosis of AD, symptoms tended to be more marked. Memory impairments were more marked in the prodromal dementia than the stable cognition group (OR = 35.07; P less then .001), as was executive dysfunction (OR = 7.16; P less then .001). Disinhibition was greater in the AD than in the prodromal dementia group (OR = 3.54; P = .04). Apathy was more pronounced in the AD than in the stable cognition group (OR = 34.18; P less then .001). CONCLUSION Premorbid amnestic and non-amnestic symptoms as reported by informants increase with the progression to AD. For the formal diagnosis of AD in DS this progression of symptoms needs to be taken into account. An understanding of the unique clinical presentation of DS in AD should inform treatment options. © 2020 John Wiley & Sons Ltd.BACKGROUND Barley is one of the most sown crops in the world, with multiple uses such as human consumption, animal feed and for the malting industry. This crop is affected by different diseases, such as Fusarium Head Blight (FHB), that causes losses in yield and quality. In the last years F. graminearum and F. poae were two of the most frequently isolated species in barley grains, so the aim of this study was to evaluate the interaction between these Fusarium species and the effects on disease parameters, grain quality and mycotoxin contamination on five barley genotypes under field conditions. RESULTS Statistical differences between Fusarium treatments for some parameters depending mainly on the year/genotype were found. The results showed that the germination process was affected by both Fusarium species. As to grain quality and the different hordein fractions, it was observed that F. graminearum affects preferentially D and C-hordeins. Different concentrations of nivalenol, deoxynivalenol and their acetylated derivatives (3-acetyl deoxynivalenol (3-ADON), 15-acetyl deoxynivalenol (15-ADON)) were detected. CONCLUSIONS In the present work, no evidence of synergism between F. graminearum and F. poae were found regarding disease parameters and mycotoxin contamination. However, at least in the years with favorable climatic conditions to FHB development and depending on the barley genotype, a continuous monitoring is deemed necessary to prevent the negative impact on protein composition and germinative parameters © 2020 Society of Chemical Industry. © 2020 Society of Chemical Industry.A five-year-old female rhesus macaque (Macaca mulatta) presented with a thin body condition and multiple palpable mid-abdominal masses. Mineralized cecal trichobezoars were removed surgically. Thirteen months later, similar masses recurred and were confirmed with radiographs. This is the first case report of a mineralized cecal trichobezoar in a rhesus macaque. © 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.BACKGROUND Occupational skin diseases (OSD) are the most common work-related diseases in Germany and responsible for large individual and financial burdens. Therefore, a tertiary individual prevention programme (TIP) is offered to patients with severe OSD who are at increased risk of abandoning their profession. OBJECTIVES To define cost-of-illness (COI) of OSD in Germany and to economically evaluate the TIP from a societal perspective. METHODS In this study, data of patients taking part in the TIP (11/2005-12/2009) were collected. Sociodemographic and medical data, costs, disease severity (Osnabrueck Hand Eczema Severity Index) and quality of life (Dermatology Life Quality Index) were assessed. COI and cost-effectiveness analysis were performed with a simulated control group. RESULTS In the analysis, 1041 patients were included. Intervention costs per persons were €15009 with decreasing COI over time. Incremental cost-effectiveness ratio (ICER) revealed expenses per patient of €8942 for a reduction in severity level and €9093 for an improvement in QoL in the base case.
iniae in US aquaculture. © 2020 John Wiley & Sons Ltd.OBJECTIVES Psychotropic medication is commonly used among people with dementia (PWD), but it shows modest efficacy and it has been associated with severe adverse events. Hospitalizations are an opportunity for medication management as well as treatment recommendations for outpatient physicians. The aim of this study was to asses factors associated with new use of psychotropic medication after hospitalization among PWD. METHODS We conducted a retrospective dynamic cohort study from 2004 to 2015 using claims data from a German health insurance company. PWD were identified by an algorithm that included ICD-10 diagnosis and diagnostic measures. The medication classes included were antidepressants, antipsychotics, anxiolytics or hypnotics/sedatives, and Alzheimer's medication. The assessment period was up to 30 days after discharge from the hospital across four hospitalizations. https://www.selleckchem.com/products/1-thioglycerol.html RESULTS The main predictors for new use of psychotropic medication were similar across medication classes. Neuropsychiatric symptoms (NPSves, and Alzheimer's medication for more than 6 weeks. Delirium and neuropsychiatric symptoms were associated with significantly increased odds of new psychotropic medication use. Hospital stays due to dementia and the need of care were predictors for new use of psychotropic medication. © 2020 The Authors. International Journal of Geriatric Psychiatry published by John Wiley & Sons Ltd.The presence of age-related neuropathology characteristic of Alzheimer's disease (AD) in people with Down syndrome (DS) is well-established. However, the early symptoms of dementia may be atypical and appear related to dysfunction of prefrontal circuitry. OBJECTIVE To characterize the initial informant reported age-related neuropsychiatric symptoms of dementia in people with DS, and their relationship to AD and frontal lobe function. METHODS Non-amnestic informant reported symptoms (disinhibition, apathy, and executive dysfunction) and amnestic symptoms from the CAMDEX-DS informant interview were analyzed in a cross-sectional cohort of 162 participants with DS over 30 years of age, divided into three groups stable cognition, prodromal dementia, and AD. To investigate age-related symptoms prior to evidence of prodromal dementia we stratified the stable cognition group by age. RESULTS Amnestic and non-amnestic symptoms were present before evidence of informant-reported cognitive decline. In those who received the diagnosis of AD, symptoms tended to be more marked. Memory impairments were more marked in the prodromal dementia than the stable cognition group (OR = 35.07; P less then .001), as was executive dysfunction (OR = 7.16; P less then .001). Disinhibition was greater in the AD than in the prodromal dementia group (OR = 3.54; P = .04). Apathy was more pronounced in the AD than in the stable cognition group (OR = 34.18; P less then .001). CONCLUSION Premorbid amnestic and non-amnestic symptoms as reported by informants increase with the progression to AD. For the formal diagnosis of AD in DS this progression of symptoms needs to be taken into account. An understanding of the unique clinical presentation of DS in AD should inform treatment options. © 2020 John Wiley & Sons Ltd.BACKGROUND Barley is one of the most sown crops in the world, with multiple uses such as human consumption, animal feed and for the malting industry. This crop is affected by different diseases, such as Fusarium Head Blight (FHB), that causes losses in yield and quality. In the last years F. graminearum and F. poae were two of the most frequently isolated species in barley grains, so the aim of this study was to evaluate the interaction between these Fusarium species and the effects on disease parameters, grain quality and mycotoxin contamination on five barley genotypes under field conditions. RESULTS Statistical differences between Fusarium treatments for some parameters depending mainly on the year/genotype were found. The results showed that the germination process was affected by both Fusarium species. As to grain quality and the different hordein fractions, it was observed that F. graminearum affects preferentially D and C-hordeins. Different concentrations of nivalenol, deoxynivalenol and their acetylated derivatives (3-acetyl deoxynivalenol (3-ADON), 15-acetyl deoxynivalenol (15-ADON)) were detected. CONCLUSIONS In the present work, no evidence of synergism between F. graminearum and F. poae were found regarding disease parameters and mycotoxin contamination. However, at least in the years with favorable climatic conditions to FHB development and depending on the barley genotype, a continuous monitoring is deemed necessary to prevent the negative impact on protein composition and germinative parameters © 2020 Society of Chemical Industry. © 2020 Society of Chemical Industry.A five-year-old female rhesus macaque (Macaca mulatta) presented with a thin body condition and multiple palpable mid-abdominal masses. Mineralized cecal trichobezoars were removed surgically. Thirteen months later, similar masses recurred and were confirmed with radiographs. This is the first case report of a mineralized cecal trichobezoar in a rhesus macaque. © 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.BACKGROUND Occupational skin diseases (OSD) are the most common work-related diseases in Germany and responsible for large individual and financial burdens. Therefore, a tertiary individual prevention programme (TIP) is offered to patients with severe OSD who are at increased risk of abandoning their profession. OBJECTIVES To define cost-of-illness (COI) of OSD in Germany and to economically evaluate the TIP from a societal perspective. METHODS In this study, data of patients taking part in the TIP (11/2005-12/2009) were collected. Sociodemographic and medical data, costs, disease severity (Osnabrueck Hand Eczema Severity Index) and quality of life (Dermatology Life Quality Index) were assessed. COI and cost-effectiveness analysis were performed with a simulated control group. RESULTS In the analysis, 1041 patients were included. Intervention costs per persons were €15009 with decreasing COI over time. Incremental cost-effectiveness ratio (ICER) revealed expenses per patient of €8942 for a reduction in severity level and €9093 for an improvement in QoL in the base case.0 Commentaires 0 Parts 169 Vue 0 Aperçu -
The interaction of IRE RNA with eIF4F at higher concentrations produced significant changes in the secondary structure of the protein, as revealed from the far-UV CD results, clearly illustrating the structural alterations resulted from formation of the eIF4F•IRE RNA complex. A Lineweaver-Burk plot showed an uncompetitive binding behavior between IRE RNA and m7G cap for the eIF4F, indicating that there are different binding sites on the eIF4F for the IRE RNA and the cap analog; molecular docking analysis further supports this notion. Our findings suggest that the eIF4F•IRE RNA complex formation is accompanied by an elevated hydrogen bonding and weakened hydrophobic interactions, leading to an overall conformational change, favored in terms of its free energy. The conformational change in the eIF4F structure, caused by the IRE RNA binding, provides a more stable platform for effective IRE translation in iron homeostasis.Proteins and functional polyols are essential food ingredients coexisting in the food matrix, and therefore, interactions between them inevitably occur. In this study, the interaction mechanisms of xylitol (XY) with bovine milk β-lactoglobulin (β-LG) and β-casein (β-CN) were studied using multispectral techniques and molecular docking. https://www.selleckchem.com/products/elacestrant.html It was found that XY strongly quenched the intrinsic fluorescence of β-LG and β-CN by static quenching. The values of the binding constants were KA(β-LG-XY) = 3.369 × 104 L/mol and KA(β-CN- XY) = 7.821 × 104 L/mol, indicating that the binding affinity of XY to β-CN was higher than that for β-LG. Hydrogen bonding and van der Waals forces played a major role in the interactions of XY with β-LG and β-CN, and both interactions were exothermic. Simultaneous fluorescence, three-dimensional fluorescence, and circular dichroism spectroscopy showed that binding of XY did not change the secondary structure of β-LG. However, XY interaction with β-CN led to the conversion of α-helices to random coils and structural loosening. In addition, molecular docking predicted the most likely binding sites of XY in both proteins and the interaction forces involved in binding, confirming the spectroscopic results. This study improves the understanding of the interactions of XY with β-LG and β-CN in functional dairy products and provides a theoretical basis for the addition of XY in a functional milk base.Phosmet exerts its neurotoxicity by inhibiting acetylcholinesterase that catalyzes the degradation of acetylcholine (a neurotransmitter). Serum proteins are known to influence the biodistribution of various endogenous and exogenous compounds. In the present study, the binding interactions of phosmet with bovine serum albumin (BSA) was investigated to determine the free concentration of phosmet for its neurotoxicity. The binding mechanism was studied using fluorescence, UV-Vis absorption spectroscopy, circular dichroism (CD), and molecular docking techniques. UV-Vis absorption data showed an increase in absorbance of BSA upon binding with phosmet with a slight red-shift in the peak around 280 nm. Intrinsic fluorescence of BSA was quenched in the presence of phosmet. The quenching was observed to be inversely correlated to the temperature that indicated the formation of ground state non-fluorescent complex (static quenching). Binding constant values and n values for the binding of phosmet with BSA at three different temperatures confirmed non-covalent binding interactions with a single set of equivalent binding sites. Thermodynamic parameters ∆G (-137.40 ± 3.58 kJ mol-1); ΔH (-16.33 ± 5.28 kJ mol-1) and ΔS(-469 ± 12.45 kJ mol-1) confirmed that the binding was spontaneous and non-covalent interactions like electrostatic, hydrogen bonding and van der Waals forces played an important role in the binding. The CD data indicated the conformational change in BSA upon binding with phosmet which resulted in a change in the melting temperature. Molecular docking presented the binding model for BSA-phosmet complex and displayed that non-covalent interactions played a significant role in the binding mechanism.Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy integrated with chemometrics was effectively applied for the rapid detection and accurate quantification of fried mustard oil (FMO) adulteration in pure mustard oil (PMO). PMO was adulterated with FMO in the range of 0.5-50% v/v. Principal component analysis (PCA) elucidated the studied adulteration using two components with an explained variance of 97%. The linear discriminant analysis (LDA) was adopted to classify the adulterated PMO samples with FMO. LDA model showed 100% accuracy initially, as well as when cross-validated. To enhance the overall quality of models, characteristic spectral regions were optimized, and principal component regression (PCR) and partial least square regression (PLS-R) models were constructed with high accuracy and precision. PLS-R model for the 2nd derivative of the optimized spectral region 1260-1080 cm-1 showed best results for prediction sample sets in terms of high R2 and residual predictive deviation (RPD) value of 0.999 and 31.91 with low root mean square error (RMSE) and relative prediction error (RE %) of 0.53% v/v and 3.37% respectively. Thus, the suggested method can detect up to 0.5% v/v of adulterated FMO in PMO in a short time interval.Mutation in rpsL (encoding ribosomal protein S12), rrs (encoding 16S ribosomal RNA) and gidB (encoding 7-methylguanosine methyltransferase) are associated with resistance to streptomycin (STR), which is used for the treatment of multi-drug resistant tuberculosis (MDR-TB) in Nepal. The aim of our study is to analyze the correlation between mutations in the target genes and STR-resistance in 197 Mycobacterium tuberculosis (MTB) isolates from Nepal. Mutations in rpsL was harbored by 65.9% of isolates, in which the most common mutation in rpsL is caused by K43R (58.8%) and were significantly associated with Beijing genotype (P less then 0.001). About 13.2% of isolates harbored mutations in two highly mutable regions of rrs, the 530 loop and the 912 region. About 13.2% of gidB mutants do not show any mutation in rpsL and rrs, which might suggest the role of gidB mutations in STR-resistance in MTB. In addition, 5.6% of isolates do not show any mutations in three genes examined, suggesting the involvement of other mechanism in STR-resistance in MTB.
The interaction of IRE RNA with eIF4F at higher concentrations produced significant changes in the secondary structure of the protein, as revealed from the far-UV CD results, clearly illustrating the structural alterations resulted from formation of the eIF4F•IRE RNA complex. A Lineweaver-Burk plot showed an uncompetitive binding behavior between IRE RNA and m7G cap for the eIF4F, indicating that there are different binding sites on the eIF4F for the IRE RNA and the cap analog; molecular docking analysis further supports this notion. Our findings suggest that the eIF4F•IRE RNA complex formation is accompanied by an elevated hydrogen bonding and weakened hydrophobic interactions, leading to an overall conformational change, favored in terms of its free energy. The conformational change in the eIF4F structure, caused by the IRE RNA binding, provides a more stable platform for effective IRE translation in iron homeostasis.Proteins and functional polyols are essential food ingredients coexisting in the food matrix, and therefore, interactions between them inevitably occur. In this study, the interaction mechanisms of xylitol (XY) with bovine milk β-lactoglobulin (β-LG) and β-casein (β-CN) were studied using multispectral techniques and molecular docking. https://www.selleckchem.com/products/elacestrant.html It was found that XY strongly quenched the intrinsic fluorescence of β-LG and β-CN by static quenching. The values of the binding constants were KA(β-LG-XY) = 3.369 × 104 L/mol and KA(β-CN- XY) = 7.821 × 104 L/mol, indicating that the binding affinity of XY to β-CN was higher than that for β-LG. Hydrogen bonding and van der Waals forces played a major role in the interactions of XY with β-LG and β-CN, and both interactions were exothermic. Simultaneous fluorescence, three-dimensional fluorescence, and circular dichroism spectroscopy showed that binding of XY did not change the secondary structure of β-LG. However, XY interaction with β-CN led to the conversion of α-helices to random coils and structural loosening. In addition, molecular docking predicted the most likely binding sites of XY in both proteins and the interaction forces involved in binding, confirming the spectroscopic results. This study improves the understanding of the interactions of XY with β-LG and β-CN in functional dairy products and provides a theoretical basis for the addition of XY in a functional milk base.Phosmet exerts its neurotoxicity by inhibiting acetylcholinesterase that catalyzes the degradation of acetylcholine (a neurotransmitter). Serum proteins are known to influence the biodistribution of various endogenous and exogenous compounds. In the present study, the binding interactions of phosmet with bovine serum albumin (BSA) was investigated to determine the free concentration of phosmet for its neurotoxicity. The binding mechanism was studied using fluorescence, UV-Vis absorption spectroscopy, circular dichroism (CD), and molecular docking techniques. UV-Vis absorption data showed an increase in absorbance of BSA upon binding with phosmet with a slight red-shift in the peak around 280 nm. Intrinsic fluorescence of BSA was quenched in the presence of phosmet. The quenching was observed to be inversely correlated to the temperature that indicated the formation of ground state non-fluorescent complex (static quenching). Binding constant values and n values for the binding of phosmet with BSA at three different temperatures confirmed non-covalent binding interactions with a single set of equivalent binding sites. Thermodynamic parameters ∆G (-137.40 ± 3.58 kJ mol-1); ΔH (-16.33 ± 5.28 kJ mol-1) and ΔS(-469 ± 12.45 kJ mol-1) confirmed that the binding was spontaneous and non-covalent interactions like electrostatic, hydrogen bonding and van der Waals forces played an important role in the binding. The CD data indicated the conformational change in BSA upon binding with phosmet which resulted in a change in the melting temperature. Molecular docking presented the binding model for BSA-phosmet complex and displayed that non-covalent interactions played a significant role in the binding mechanism.Attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy integrated with chemometrics was effectively applied for the rapid detection and accurate quantification of fried mustard oil (FMO) adulteration in pure mustard oil (PMO). PMO was adulterated with FMO in the range of 0.5-50% v/v. Principal component analysis (PCA) elucidated the studied adulteration using two components with an explained variance of 97%. The linear discriminant analysis (LDA) was adopted to classify the adulterated PMO samples with FMO. LDA model showed 100% accuracy initially, as well as when cross-validated. To enhance the overall quality of models, characteristic spectral regions were optimized, and principal component regression (PCR) and partial least square regression (PLS-R) models were constructed with high accuracy and precision. PLS-R model for the 2nd derivative of the optimized spectral region 1260-1080 cm-1 showed best results for prediction sample sets in terms of high R2 and residual predictive deviation (RPD) value of 0.999 and 31.91 with low root mean square error (RMSE) and relative prediction error (RE %) of 0.53% v/v and 3.37% respectively. Thus, the suggested method can detect up to 0.5% v/v of adulterated FMO in PMO in a short time interval.Mutation in rpsL (encoding ribosomal protein S12), rrs (encoding 16S ribosomal RNA) and gidB (encoding 7-methylguanosine methyltransferase) are associated with resistance to streptomycin (STR), which is used for the treatment of multi-drug resistant tuberculosis (MDR-TB) in Nepal. The aim of our study is to analyze the correlation between mutations in the target genes and STR-resistance in 197 Mycobacterium tuberculosis (MTB) isolates from Nepal. Mutations in rpsL was harbored by 65.9% of isolates, in which the most common mutation in rpsL is caused by K43R (58.8%) and were significantly associated with Beijing genotype (P less then 0.001). About 13.2% of isolates harbored mutations in two highly mutable regions of rrs, the 530 loop and the 912 region. About 13.2% of gidB mutants do not show any mutation in rpsL and rrs, which might suggest the role of gidB mutations in STR-resistance in MTB. In addition, 5.6% of isolates do not show any mutations in three genes examined, suggesting the involvement of other mechanism in STR-resistance in MTB.0 Commentaires 0 Parts 214 Vue 0 Aperçu -
Light is an important cue for resetting the circadian clock. In mammals, light signals are thought to be transmitted to the cAMP response element (CRE) via a binding protein (CREB) to induce the expression of Per1 and Per2 genes in the mammalian circadian pacemaker, the suprachiasmatic nuclei (SCN). Several in vitro studies have suggested candidate CRE sites that contribute to the Per1 and Per2 induction by light, resulting in a phase shift of the circadian rhythm. However, it remains unclear whether the CREs are responsible for the light-induced Per1/2 induction. To address this question, we generated CRE-deleted **** in the Per1 and Per2 promoter regions. Deletion of a cAMP-responsive CRE in the Per1 promoter blunted light-induced Per1 expression in the SCN at night, while deletion of an ATF4 (CREB-2)-associated CRE in the Per2 promoter had no effect on its expression. These results suggested that the CRE in the Per1 promoter works for light induction but not CRE in the Per2 promoter. Behavioral rhythms observed under some light conditions were not affected by the CRE-deletion in Per1 promoter, suggesting that the attenuated Per1 induction did not affect the entrainment in some light conditions.The highly contagious severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected every aspect of medical practice and has all but ceased clinical, translational and basic science research. Pregnant women appear to be similarly affected by the virus as non-pregnant adults. As obstetricians, not only do we have a duty to care for pregnant women and their fetuses, but to continue to conduct research, inclusive of that which would guide us in delivering care during a pandemic. Conducting such research has its challenges. The objective of this chapter is to review the impact of SARS-CoV-2 on ongoing and new pregnancy research during the pandemic, describe the challenges encountered and summarize the key strategies necessary for a successful research environment.In time of SARS-Cov2 pandemic, neurologists need to be vigilant for cerebrovascular complications of Covid-19. We present a case of bilateral occipito-temporal infarction revealed by a sudden cortical blindness with haemorrhagic transformation after intravenous thrombolysis in a diabetic patient infected by Covid-19. Differential diagnoses are discussed in front of this unusual presentation and evolution.A bus driver presented with neurological abnormalities following a driving mishap. He was diagnosed cardioembolic stroke. The bus was equipped with a dashboard camera that recorded the moment when the patient suffered the stroke. We reported the first case dashcam-captured images at the first sign of a right hemispheric stroke.
Treatment of FLAIR-negative stroke in patients presenting in an unknown time window has been shown to be safe and effective. However, implementation can be challenging due to the need for hyper-acute MRI screening. The purpose of this study was to review the routine application of this practice outside of a clinical trial.
Patients presenting from 3/1/16 to 8/22/18 in a time window <4.5 h from symptom discovery but >4.5 h from last known normal were included if they had a hyper-acute MRI performed. Quantitative assessment based on the MR WITNESS trial and qualitative assessment based on the WAKE-UP trial were used to grade the FLAIR images. The MR WITNESS trial used a quantitative assessment of FLAIR change where the fractional increase in signal change had to be <1.15, whereas the WAKE-UP trial used a visual assessment requiring the absence of marked FLAIR signal changes.
During the study period, 136 stroke patients presented and were imaged in the specified time window. Of these, 17 (12.5%) received IV tPA. Three patients had hemorrhage on 24-h MRI follow up; none had an increase in NIHSS ≥4. Of the 119 patients who were screened but not treated, 18 (15%) were eligible based on FLAIR quantitative assessment and 55 (46%) were eligible based on qualitative assessment. In all cases where patients were not treated, there was an identifiable exclusion based on trial criteria. During the study period, IV tPA utilization was increased by 5.6% due to screening and treating patients with unknown onset stroke.
Screening stroke patients in an unknown time window with MRI is practical in a real-world setting and increases IV tPA utilization.
Screening stroke patients in an unknown time window with MRI is practical in a real-world setting and increases IV tPA utilization.
Although the skeletal muscle is the main effector of disability in stroke, evidence on post-stroke skeletal muscle is scarce; especially, the prevalence of stroke-related sarcopenia remains unclear. Thus, we aimed to systematically search the prevalence of sarcopenia in stroke survivors and synthesize pooled estimates of overall prevalence of stroke-related sarcopenia and prevalence stratified by sex, country, time since stroke onset, and diagnostic criteria of sarcopenia.
We performed systematic searches in the MEDLINE, CINAHL, Embase, and Cochrane Library databases. English-language searches to identify included studies were completed August 25, 2019. Meta-analysis of data collected from cross-sectional or observational studies which were reported the prevalence of sarcopenia among stroke participants. All statistical analyses were performed using R version 3.5.2.
A total of 855 articles were initially identified. Seven articles were included in this study. Total sample size across all included studieful for researchers to design sarcopenia studies in this population. Further prospective longitudinal studies for sarcopenia and their prognostic outcomes in stroke survivors are urgently needed to propose appropriate physical and nutritional strategies in geriatric rehabilitation.
We aimed to analyze angiographic and clinical outcomes according to the sequence of treatment (antegrade versus retrograde) in patients with acute ischemic stroke caused by tandem extracranial cervical carotid and intracranial large vessel occlusion.
All eligible tandem occlusion patients from April 2012 to March 2019 undergoing carotid artery stenting (CAS) simultaneously with intracranial endovascular thrombectomy (EVT) were retrospectively reviewed. After dividing into 2 groups according to the treatment sequence for tandem lesions (antegrade, CAS first; retrograde, intracranial EVT first), baseline data, immediate angiographic results, and clinical outcome for eligible patients were analyzed and compared. In addition, the same analysis was performed after dividing into 3 groups based on the location of intracranial lesions (T-zone, M1, M2).
A total of 76 patients with a tandem occlusion (mean age, 71.7 y± 11.1) were treated with CAS and intracranial EVT. https://www.selleckchem.com/ The rate of successful recanalization (TICI 2BC) was 83% (63/76), and favorable functional outcome was achieved in 49% (37/76).
Light is an important cue for resetting the circadian clock. In mammals, light signals are thought to be transmitted to the cAMP response element (CRE) via a binding protein (CREB) to induce the expression of Per1 and Per2 genes in the mammalian circadian pacemaker, the suprachiasmatic nuclei (SCN). Several in vitro studies have suggested candidate CRE sites that contribute to the Per1 and Per2 induction by light, resulting in a phase shift of the circadian rhythm. However, it remains unclear whether the CREs are responsible for the light-induced Per1/2 induction. To address this question, we generated CRE-deleted mice in the Per1 and Per2 promoter regions. Deletion of a cAMP-responsive CRE in the Per1 promoter blunted light-induced Per1 expression in the SCN at night, while deletion of an ATF4 (CREB-2)-associated CRE in the Per2 promoter had no effect on its expression. These results suggested that the CRE in the Per1 promoter works for light induction but not CRE in the Per2 promoter. Behavioral rhythms observed under some light conditions were not affected by the CRE-deletion in Per1 promoter, suggesting that the attenuated Per1 induction did not affect the entrainment in some light conditions.The highly contagious severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected every aspect of medical practice and has all but ceased clinical, translational and basic science research. Pregnant women appear to be similarly affected by the virus as non-pregnant adults. As obstetricians, not only do we have a duty to care for pregnant women and their fetuses, but to continue to conduct research, inclusive of that which would guide us in delivering care during a pandemic. Conducting such research has its challenges. The objective of this chapter is to review the impact of SARS-CoV-2 on ongoing and new pregnancy research during the pandemic, describe the challenges encountered and summarize the key strategies necessary for a successful research environment.In time of SARS-Cov2 pandemic, neurologists need to be vigilant for cerebrovascular complications of Covid-19. We present a case of bilateral occipito-temporal infarction revealed by a sudden cortical blindness with haemorrhagic transformation after intravenous thrombolysis in a diabetic patient infected by Covid-19. Differential diagnoses are discussed in front of this unusual presentation and evolution.A bus driver presented with neurological abnormalities following a driving mishap. He was diagnosed cardioembolic stroke. The bus was equipped with a dashboard camera that recorded the moment when the patient suffered the stroke. We reported the first case dashcam-captured images at the first sign of a right hemispheric stroke. Treatment of FLAIR-negative stroke in patients presenting in an unknown time window has been shown to be safe and effective. However, implementation can be challenging due to the need for hyper-acute MRI screening. The purpose of this study was to review the routine application of this practice outside of a clinical trial. Patients presenting from 3/1/16 to 8/22/18 in a time window <4.5 h from symptom discovery but >4.5 h from last known normal were included if they had a hyper-acute MRI performed. Quantitative assessment based on the MR WITNESS trial and qualitative assessment based on the WAKE-UP trial were used to grade the FLAIR images. The MR WITNESS trial used a quantitative assessment of FLAIR change where the fractional increase in signal change had to be <1.15, whereas the WAKE-UP trial used a visual assessment requiring the absence of marked FLAIR signal changes. During the study period, 136 stroke patients presented and were imaged in the specified time window. Of these, 17 (12.5%) received IV tPA. Three patients had hemorrhage on 24-h MRI follow up; none had an increase in NIHSS ≥4. Of the 119 patients who were screened but not treated, 18 (15%) were eligible based on FLAIR quantitative assessment and 55 (46%) were eligible based on qualitative assessment. In all cases where patients were not treated, there was an identifiable exclusion based on trial criteria. During the study period, IV tPA utilization was increased by 5.6% due to screening and treating patients with unknown onset stroke. Screening stroke patients in an unknown time window with MRI is practical in a real-world setting and increases IV tPA utilization. Screening stroke patients in an unknown time window with MRI is practical in a real-world setting and increases IV tPA utilization. Although the skeletal muscle is the main effector of disability in stroke, evidence on post-stroke skeletal muscle is scarce; especially, the prevalence of stroke-related sarcopenia remains unclear. Thus, we aimed to systematically search the prevalence of sarcopenia in stroke survivors and synthesize pooled estimates of overall prevalence of stroke-related sarcopenia and prevalence stratified by sex, country, time since stroke onset, and diagnostic criteria of sarcopenia. We performed systematic searches in the MEDLINE, CINAHL, Embase, and Cochrane Library databases. English-language searches to identify included studies were completed August 25, 2019. Meta-analysis of data collected from cross-sectional or observational studies which were reported the prevalence of sarcopenia among stroke participants. All statistical analyses were performed using R version 3.5.2. A total of 855 articles were initially identified. Seven articles were included in this study. Total sample size across all included studieful for researchers to design sarcopenia studies in this population. Further prospective longitudinal studies for sarcopenia and their prognostic outcomes in stroke survivors are urgently needed to propose appropriate physical and nutritional strategies in geriatric rehabilitation. We aimed to analyze angiographic and clinical outcomes according to the sequence of treatment (antegrade versus retrograde) in patients with acute ischemic stroke caused by tandem extracranial cervical carotid and intracranial large vessel occlusion. All eligible tandem occlusion patients from April 2012 to March 2019 undergoing carotid artery stenting (CAS) simultaneously with intracranial endovascular thrombectomy (EVT) were retrospectively reviewed. After dividing into 2 groups according to the treatment sequence for tandem lesions (antegrade, CAS first; retrograde, intracranial EVT first), baseline data, immediate angiographic results, and clinical outcome for eligible patients were analyzed and compared. In addition, the same analysis was performed after dividing into 3 groups based on the location of intracranial lesions (T-zone, M1, M2). A total of 76 patients with a tandem occlusion (mean age, 71.7 y± 11.1) were treated with CAS and intracranial EVT. https://www.selleckchem.com/ The rate of successful recanalization (TICI 2BC) was 83% (63/76), and favorable functional outcome was achieved in 49% (37/76).0 Commentaires 0 Parts 148 Vue 0 Aperçu -
Synthetic crystal lattices provide ideal environments for simulating and exploring the band structure of solid-state materials in clean and controlled experimental settings. Physical realisations have, so far, dominantly focused on implementing irreversible patterning of the system, or interference techniques such as optical lattices of cold atoms. Here, we realise reprogrammable synthetic band-structure engineering in an all optical exciton-polariton lattice. We demonstrate polariton condensation into excited states of linear one-dimensional lattices, periodic rings, dimerised non-trivial topological phases, and defect modes utilising malleable optically imprinted non-Hermitian potential landscapes. The stable excited nature of the condensate lattice with strong interactions between sites results in an actively tuneable non-Hermitian analogue of the Su-Schrieffer-Heeger system.
A prospective, regional, population-based study.
(1) Determine the mortality rate and factors associated with it 4 years after a TSCI and (2) The point prevalence of secondary medical complications of survivors at 4 years.
Communities of the Cape metropolitan area, South Africa.
All persons (n = 145) sustaining a TSCI from 15 September 2013 to 14 September 2014 were eligible for follow-up at 4 years. Participants were contacted after 4 years. The next of kin, via verbal autopsy, was used to establish cause of death. Those who were alive at 4 years were asked to indicate any secondary medical complications. Logistic regression techniques were used to identify independently associated risk indicators for death and development of secondary complications, respectively.
Of the initial 145 persons, 87 were included and accounted for. Of these, 21 (24%) had died, 55 (63%) were alive and completed the survey, and 11 (13%) were classified as alive but did not submit the survey. The main cause of death reported was septicaemia (n = 7; 33%), followed by unknown natural causes (n = 7; 33%), then pressure injuries (n = 5; 24%). Out of the 55 persons alive, 89% had at least one medical complication at the time of enquiry, while more than 50% experienced 6 or more complications. The most common complications were pain (80%), muscle spasms (76%), sleeping problems (56%), and bladder dysfunction (44%).
Almost one-quarter of persons with TSCI have died 4 years after injury. Also, secondary complications were found to be highly prevalent at 4 years. This information could be used to develop secondary complications prevention programmes to reduce premature deaths.
This study was funded by the Medical Research Council of South Africa within the Research Capacity Development Initiative.
This study was funded by the Medical Research Council of South Africa within the Research Capacity Development Initiative.BACKGROUND The purpose of this research was to study and analyze the diagnostic value of magnetic resonance (MR) combined with computed tomography (CT) in patients with stress injury of the femoral neck. MATERIAL AND METHODS The 58 patients with stress injury of the femoral neck who were treated in our hospital from July 2017 until July 2019 were selected as subjects on the basis of clinical pathology and surgery, MR and CT examination, and related imaging data retrospectively analyzed. We observed all patients using different diagnostic methods to determine the value of diagnosis and treatment of disease. RESULTS The patients selected for this study were confirmed by clinicopathology and surgery; the positive rate of CT diagnosis was 65.5%, the positive rate of MR diagnosis was 74.1%, and the positive rate of combined diagnosis was 91.4%. https://www.selleckchem.com/products/enfortumab-vedotin-ejfv.html Through statistical analysis, CT and MR showed no significant difference in the detection of stress lesions in different femoral necks, indicating no statistical significance (P>0.05). However, the amount of stress lesions detected in the combined diagnosis was higher than that in the two separate detection methods, with statistically significant difference (P0.05). The accuracy, sensitivity, and specificity of the combined detection were higher than that of CT and MR detection alone, with statistically significant differences between groups (P less then 0.05). CONCLUSIONS The application of MR combined with CT in early clinical diagnosis and treatment of femoral neck stress injury will improve the diagnosis rate; the imaging signal is obvious, which is helpful to further evaluate the severity of disease.BACKGROUND The introduction of immunotherapy in the management of metastatic lung cancer appears to be changing their natural history. Most patients tolerate immunotherapy without any significant adverse events. Nevertheless, a significant number of patients still experience adverse effects. Autoimmune hemolytic anemia has been described as mostly related to warm autoantibodies. The following case report describes cold agglutinin disease with hemolysis secondary to Pembrolizumab therapy for the treatment of metastatic lung cancer. CASE REPORT A 58-year-old woman noted a left neck mass 4 months prior to her presentation. A biopsy confirmed the presence of metastatic adenocarcinoma, consistent with primary lung cancer. Further evaluation revealed the tumor to be PDL-1-positive. She was started on Pembrolizumab, Pemetrexed, and carboplatin chemotherapy regimen. Her CBC was within normal limits when she started therapy, but within 4 weeks hemoglobin dropped to 4.3 g/dL. Further evaluation showed high cryoglobulin levels and a high cold agglutinin titer. Complement C3 DAT was positive. A peripheral smear showed clumps of red cells and the serum IgM was elevated. The diagnosis of *** was made. She was then started on Rituximab. Imaging showed a significant response, with decreased disease burden. CONCLUSIONS Our case shows a unique presentation of ***, initially presumed to be myelosuppression secondary to chemotherapy. Instead, a peripheral smear revealed Pembrolizumab to be the cause of cold agglutinin disease. Due to the relatively unknown association between these 2 entities, patient care was delayed. Finally, after initiation of Rituximab therapy, the patient's CBC began to recover.
Synthetic crystal lattices provide ideal environments for simulating and exploring the band structure of solid-state materials in clean and controlled experimental settings. Physical realisations have, so far, dominantly focused on implementing irreversible patterning of the system, or interference techniques such as optical lattices of cold atoms. Here, we realise reprogrammable synthetic band-structure engineering in an all optical exciton-polariton lattice. We demonstrate polariton condensation into excited states of linear one-dimensional lattices, periodic rings, dimerised non-trivial topological phases, and defect modes utilising malleable optically imprinted non-Hermitian potential landscapes. The stable excited nature of the condensate lattice with strong interactions between sites results in an actively tuneable non-Hermitian analogue of the Su-Schrieffer-Heeger system. A prospective, regional, population-based study. (1) Determine the mortality rate and factors associated with it 4 years after a TSCI and (2) The point prevalence of secondary medical complications of survivors at 4 years. Communities of the Cape metropolitan area, South Africa. All persons (n = 145) sustaining a TSCI from 15 September 2013 to 14 September 2014 were eligible for follow-up at 4 years. Participants were contacted after 4 years. The next of kin, via verbal autopsy, was used to establish cause of death. Those who were alive at 4 years were asked to indicate any secondary medical complications. Logistic regression techniques were used to identify independently associated risk indicators for death and development of secondary complications, respectively. Of the initial 145 persons, 87 were included and accounted for. Of these, 21 (24%) had died, 55 (63%) were alive and completed the survey, and 11 (13%) were classified as alive but did not submit the survey. The main cause of death reported was septicaemia (n = 7; 33%), followed by unknown natural causes (n = 7; 33%), then pressure injuries (n = 5; 24%). Out of the 55 persons alive, 89% had at least one medical complication at the time of enquiry, while more than 50% experienced 6 or more complications. The most common complications were pain (80%), muscle spasms (76%), sleeping problems (56%), and bladder dysfunction (44%). Almost one-quarter of persons with TSCI have died 4 years after injury. Also, secondary complications were found to be highly prevalent at 4 years. This information could be used to develop secondary complications prevention programmes to reduce premature deaths. This study was funded by the Medical Research Council of South Africa within the Research Capacity Development Initiative. This study was funded by the Medical Research Council of South Africa within the Research Capacity Development Initiative.BACKGROUND The purpose of this research was to study and analyze the diagnostic value of magnetic resonance (MR) combined with computed tomography (CT) in patients with stress injury of the femoral neck. MATERIAL AND METHODS The 58 patients with stress injury of the femoral neck who were treated in our hospital from July 2017 until July 2019 were selected as subjects on the basis of clinical pathology and surgery, MR and CT examination, and related imaging data retrospectively analyzed. We observed all patients using different diagnostic methods to determine the value of diagnosis and treatment of disease. RESULTS The patients selected for this study were confirmed by clinicopathology and surgery; the positive rate of CT diagnosis was 65.5%, the positive rate of MR diagnosis was 74.1%, and the positive rate of combined diagnosis was 91.4%. https://www.selleckchem.com/products/enfortumab-vedotin-ejfv.html Through statistical analysis, CT and MR showed no significant difference in the detection of stress lesions in different femoral necks, indicating no statistical significance (P>0.05). However, the amount of stress lesions detected in the combined diagnosis was higher than that in the two separate detection methods, with statistically significant difference (P0.05). The accuracy, sensitivity, and specificity of the combined detection were higher than that of CT and MR detection alone, with statistically significant differences between groups (P less then 0.05). CONCLUSIONS The application of MR combined with CT in early clinical diagnosis and treatment of femoral neck stress injury will improve the diagnosis rate; the imaging signal is obvious, which is helpful to further evaluate the severity of disease.BACKGROUND The introduction of immunotherapy in the management of metastatic lung cancer appears to be changing their natural history. Most patients tolerate immunotherapy without any significant adverse events. Nevertheless, a significant number of patients still experience adverse effects. Autoimmune hemolytic anemia has been described as mostly related to warm autoantibodies. The following case report describes cold agglutinin disease with hemolysis secondary to Pembrolizumab therapy for the treatment of metastatic lung cancer. CASE REPORT A 58-year-old woman noted a left neck mass 4 months prior to her presentation. A biopsy confirmed the presence of metastatic adenocarcinoma, consistent with primary lung cancer. Further evaluation revealed the tumor to be PDL-1-positive. She was started on Pembrolizumab, Pemetrexed, and carboplatin chemotherapy regimen. Her CBC was within normal limits when she started therapy, but within 4 weeks hemoglobin dropped to 4.3 g/dL. Further evaluation showed high cryoglobulin levels and a high cold agglutinin titer. Complement C3 DAT was positive. A peripheral smear showed clumps of red cells and the serum IgM was elevated. The diagnosis of CAD was made. She was then started on Rituximab. Imaging showed a significant response, with decreased disease burden. CONCLUSIONS Our case shows a unique presentation of CAD, initially presumed to be myelosuppression secondary to chemotherapy. Instead, a peripheral smear revealed Pembrolizumab to be the cause of cold agglutinin disease. Due to the relatively unknown association between these 2 entities, patient care was delayed. Finally, after initiation of Rituximab therapy, the patient's CBC began to recover.0 Commentaires 0 Parts 161 Vue 0 Aperçu -
Also, ncRv11875C showed expression in the iron-limited condition, which is prevalent inside the macrophages of the host cells. CONCLUSION The systems level analysis of sRNA highlights the condition-specific expression of sRNAs which might enable the pathogen survival by rewiring regulatory circuits.BACKGROUND The aberrant expression of microRNAs is closely connected to the occurrence and development of a great deal of human diseases. To study human diseases, numerous effective computational models that are valuable and meaningful have been presented by researchers. RESULTS Here, we present a computational framework based on graph Laplacian regularized L2, 1-nonnegative matrix factorization (GRL2, 1-NMF) for inferring possible human disease-connected miRNAs. First, manually validated disease-connected microRNAs were integrated, and microRNA functional similarity information along with two kinds of disease semantic similarities were calculated. Next, we measured Gaussian interaction profile (GIP) kernel similarities for both diseases and microRNAs. Then, we adopted a preprocessing step, namely, weighted K nearest known neighbours (WKNKN), to decrease the sparsity of the miRNA-disease association matrix network. Finally, the GRL2,1-NMF framework was used to predict links between microRNAs and diseases. CONCLUSIONS The new method (GRL2, 1-NMF) achieved AUC values of 0.9280 and 0.9276 in global leave-one-out cross validation (global LOOCV) and five-fold cross validation (5-CV), respectively, showing that GRL2, 1-NMF can powerfully discover potential disease-related miRNAs, even if there is no known associated disease.BACKGROUND The interactions between non-coding RNAs (ncRNA) and proteins play an essential role in many biological processes. Several high-throughput experimental methods have been applied to detect ncRNA-protein interactions. However, these methods are time-consuming and expensive. Accurate and efficient computational methods can assist and accelerate the study of ncRNA-protein interactions. RESULTS In this work, we develop a stacking ensemble computational framework, RPI-SE, for effectively predicting ncRNA-protein interactions. More specifically, to fully exploit protein and RNA sequence feature, Position Weight Matrix combined with Legendre Moments is applied to obtain protein evolutionary information. Meanwhile, k-mer sparse matrix is employed to extract efficient feature of ncRNA sequences. Finally, an ensemble learning framework integrated different types of base classifier is developed to predict ncRNA-protein interactions using these discriminative features. The accuracy and robustness of RPI-SE was evaluated on three benchmark data sets under five-fold cross-validation and compared with other state-of-the-art methods. CONCLUSIONS The results demonstrate that RPI-SE is competent for ncRNA-protein interactions prediction task with high accuracy and robustness. It's anticipated that this work can provide a computational prediction tool to advance ncRNA-protein interactions related biomedical research.BACKGROUND Taxus cells are a potential sustainable and environment-friendly source of taxol, but they have low survival ratios and slow grow rates. Despite these limitations, Taxus callus cells induced through 6 months of culture contain more taxol than their parent tissues. In this work, we utilized 6-month-old Taxus media calli to investigate their regulatory mechanisms of taxol biosynthesis by applying multiomics technologies. Our results provide insights into the adaptation strategies of T. media by transcriptional reprogramming when induced into calli from parent tissues. RESULTS Seven out of 12 known taxol, most of flavonoid and phenylpropanoid biosynthesis genes were significantly upregulated in callus cells relative to that in the parent tissue, thus indicating that secondary metabolism is significantly strengthened. The expression of genes involved in pathways metabolizing biological materials, such as amino acids and sugars, also dramatically increased because all nutrients are supplied from the medN Our results suggest that increasing the biosynthesis of taxol and other secondary metabolites is an active regulatory measure of calli to adapt to heterotrophic culture, and this alteration mainly involved direct and indirect miRNA-induced transcriptional reprogramming. These results expand our understanding of the relationships among the metabolism of biological substances, the biosynthesis of secondary metabolites, and defense systems. They also provide a series of candidate miRNAs and transcription factors for taxol biosynthesis.BACKGROUND The tumor suppressor p53 is a major regulator of the DNA damage response and has been suggested to selectively bind and activate cell-type specific gene expression programs. However recent studies and meta-analyses of genomic data propose largely uniform, and condition independent p53 binding and thus question the selective and cell-type dependent function of p53. RESULTS To systematically assess the cell-type specificity of p53, we measured its association with DNA in 12 p53 wild-type cancer cell lines, from a range of epithelial linages, in response to ionizing radiation. We found that the majority of bound sites were occupied across all cell lines, however we also identified a subset of binding sites that were specific to one or a few cell lines. Unlike the shared p53-bound genome, which was not dependent on chromatin accessibility, the association of p53 with these atypical binding sites was well explained by chromatin accessibility and could be modulated by forcing cell state changes such as the epithelial-to-mesenchymal transition. CONCLUSIONS Our study reconciles previous conflicting views in the p53 field, by demonstrating that although the majority of p53 DNA binding is conserved across cell types, there is a small set of cell line specific binding sites that depend on cell state.BACKGROUND The virulence of the plant pathogen Xanthomonas campestris pv. campestris (Xcc) involves the coordinate expression of many virulence factors, including surface appendages flagellum and type IV pili, which are required for pathogenesis and the colonization of host tissues. Despite many insights gained on the structure and functions played by flagellum and pili in motility, biofilm formation, surface attachment and interactions with bacteriophages, we know little about how these appendages are regulated in Xcc. https://www.selleckchem.com/products/lusutrombopag.html RESULTS Here we present evidence demonstrating the role of two single domain response regulators PilG and PilH in the antagonistic control of flagellum-dependent (swimming) and pili-dependent (swarming) motility. Using informative mutagenesis, we reveal PilG positively regulates swimming motility while and negatively regulating swarming motility. Conversely, PilH negatively regulates swimming behaviour while and positively regulating swarming motility. By transcriptome analyses (RNA-seq and RT-PCR) we confirm these observations as PilG is shown to upregulate many genes involved chemotaxis and flagellar biosynthesis but these similar genes were downregulated by PilH.
Also, ncRv11875C showed expression in the iron-limited condition, which is prevalent inside the macrophages of the host cells. CONCLUSION The systems level analysis of sRNA highlights the condition-specific expression of sRNAs which might enable the pathogen survival by rewiring regulatory circuits.BACKGROUND The aberrant expression of microRNAs is closely connected to the occurrence and development of a great deal of human diseases. To study human diseases, numerous effective computational models that are valuable and meaningful have been presented by researchers. RESULTS Here, we present a computational framework based on graph Laplacian regularized L2, 1-nonnegative matrix factorization (GRL2, 1-NMF) for inferring possible human disease-connected miRNAs. First, manually validated disease-connected microRNAs were integrated, and microRNA functional similarity information along with two kinds of disease semantic similarities were calculated. Next, we measured Gaussian interaction profile (GIP) kernel similarities for both diseases and microRNAs. Then, we adopted a preprocessing step, namely, weighted K nearest known neighbours (WKNKN), to decrease the sparsity of the miRNA-disease association matrix network. Finally, the GRL2,1-NMF framework was used to predict links between microRNAs and diseases. CONCLUSIONS The new method (GRL2, 1-NMF) achieved AUC values of 0.9280 and 0.9276 in global leave-one-out cross validation (global LOOCV) and five-fold cross validation (5-CV), respectively, showing that GRL2, 1-NMF can powerfully discover potential disease-related miRNAs, even if there is no known associated disease.BACKGROUND The interactions between non-coding RNAs (ncRNA) and proteins play an essential role in many biological processes. Several high-throughput experimental methods have been applied to detect ncRNA-protein interactions. However, these methods are time-consuming and expensive. Accurate and efficient computational methods can assist and accelerate the study of ncRNA-protein interactions. RESULTS In this work, we develop a stacking ensemble computational framework, RPI-SE, for effectively predicting ncRNA-protein interactions. More specifically, to fully exploit protein and RNA sequence feature, Position Weight Matrix combined with Legendre Moments is applied to obtain protein evolutionary information. Meanwhile, k-mer sparse matrix is employed to extract efficient feature of ncRNA sequences. Finally, an ensemble learning framework integrated different types of base classifier is developed to predict ncRNA-protein interactions using these discriminative features. The accuracy and robustness of RPI-SE was evaluated on three benchmark data sets under five-fold cross-validation and compared with other state-of-the-art methods. CONCLUSIONS The results demonstrate that RPI-SE is competent for ncRNA-protein interactions prediction task with high accuracy and robustness. It's anticipated that this work can provide a computational prediction tool to advance ncRNA-protein interactions related biomedical research.BACKGROUND Taxus cells are a potential sustainable and environment-friendly source of taxol, but they have low survival ratios and slow grow rates. Despite these limitations, Taxus callus cells induced through 6 months of culture contain more taxol than their parent tissues. In this work, we utilized 6-month-old Taxus media calli to investigate their regulatory mechanisms of taxol biosynthesis by applying multiomics technologies. Our results provide insights into the adaptation strategies of T. media by transcriptional reprogramming when induced into calli from parent tissues. RESULTS Seven out of 12 known taxol, most of flavonoid and phenylpropanoid biosynthesis genes were significantly upregulated in callus cells relative to that in the parent tissue, thus indicating that secondary metabolism is significantly strengthened. The expression of genes involved in pathways metabolizing biological materials, such as amino acids and sugars, also dramatically increased because all nutrients are supplied from the medN Our results suggest that increasing the biosynthesis of taxol and other secondary metabolites is an active regulatory measure of calli to adapt to heterotrophic culture, and this alteration mainly involved direct and indirect miRNA-induced transcriptional reprogramming. These results expand our understanding of the relationships among the metabolism of biological substances, the biosynthesis of secondary metabolites, and defense systems. They also provide a series of candidate miRNAs and transcription factors for taxol biosynthesis.BACKGROUND The tumor suppressor p53 is a major regulator of the DNA damage response and has been suggested to selectively bind and activate cell-type specific gene expression programs. However recent studies and meta-analyses of genomic data propose largely uniform, and condition independent p53 binding and thus question the selective and cell-type dependent function of p53. RESULTS To systematically assess the cell-type specificity of p53, we measured its association with DNA in 12 p53 wild-type cancer cell lines, from a range of epithelial linages, in response to ionizing radiation. We found that the majority of bound sites were occupied across all cell lines, however we also identified a subset of binding sites that were specific to one or a few cell lines. Unlike the shared p53-bound genome, which was not dependent on chromatin accessibility, the association of p53 with these atypical binding sites was well explained by chromatin accessibility and could be modulated by forcing cell state changes such as the epithelial-to-mesenchymal transition. CONCLUSIONS Our study reconciles previous conflicting views in the p53 field, by demonstrating that although the majority of p53 DNA binding is conserved across cell types, there is a small set of cell line specific binding sites that depend on cell state.BACKGROUND The virulence of the plant pathogen Xanthomonas campestris pv. campestris (Xcc) involves the coordinate expression of many virulence factors, including surface appendages flagellum and type IV pili, which are required for pathogenesis and the colonization of host tissues. Despite many insights gained on the structure and functions played by flagellum and pili in motility, biofilm formation, surface attachment and interactions with bacteriophages, we know little about how these appendages are regulated in Xcc. https://www.selleckchem.com/products/lusutrombopag.html RESULTS Here we present evidence demonstrating the role of two single domain response regulators PilG and PilH in the antagonistic control of flagellum-dependent (swimming) and pili-dependent (swarming) motility. Using informative mutagenesis, we reveal PilG positively regulates swimming motility while and negatively regulating swarming motility. Conversely, PilH negatively regulates swimming behaviour while and positively regulating swarming motility. By transcriptome analyses (RNA-seq and RT-PCR) we confirm these observations as PilG is shown to upregulate many genes involved chemotaxis and flagellar biosynthesis but these similar genes were downregulated by PilH.0 Commentaires 0 Parts 152 Vue 0 Aperçu -
Aggression, physical activities, and negatively toned content predominated in dream reports. The **** scores decreased significantly from baseline to follow-up. In the multivariate model, negative emotion index was the strongest predictor of cognitive decline. We found a significant positive association between negative emotions in dreams at baseline and subsequent reduction in **** scores. These findings suggest that some dream content in patients with PD could be considered a predictor of cognitive decline, independent of other factors known to influence either dream content or cognitive deterioration.Many inorganic materials can form crystals, but little is known about their enantioselective crystallization. Herein, we report on the enantioselective crystallization of ϵ-Zn(OH)2 (Wulfingite) chiral crystals by using amino acids. Crystals of ϵ-Zn(OH)2 were crystallized from supersaturated sodium hydroxide and zinc nitrate aqueous solutions in the presence of l- or d-arginine. All of the chiral measurements, such as selective chiral adsorption by circular dichroism (CD), chiral chromatography, and polarimetry measurements, clearly show chiral discrimination during the crystallization of ϵ-Zn(OH)2 . In addition, a new method has been developed for identifying chirality in crystals by using electron paramagnetic resonance (EPR). https://www.selleckchem.com/products/gs-441524.html Although the values of chiral induction of the ϵ-Zn(OH)2 crystals obtained are somewhat low, these values are still significant because they demonstrate that enantioselectivity during the crystallization of chiral inorganic crystals with chiral additives can be achieved. The method can be applied to many chiral inorganic systems. Understanding and controlling the crystallization of chiral inorganic crystals is important for gaining knowledge on the interaction of chiral molecules with inorganic surfaces. This knowledge can lead to an understanding of basic scientific questions such as the evolution of homochirality in biomolecules and the development of chiral inorganic crystals for a variety of purposes such as asymmetric catalysis and optical applications.
Improving the identification of depression in adults in primary care can produce clinical and economic benefits. Community Pharmacists may play a role in screening for depression.
To systematically review and evaluate the evidence for the feasibility, impact and cost-effectiveness of community pharmacists screening adults for depression.
An electronic literature search using the databases EMBASE, PubMed and CINAHL Complete from January 2000 to September 2019 was undertaken to identify studies involving community pharmacists screening for depression. Data relating to sample size, population demographics and medical conditions of adults screened were extracted. Details around the screening model, process-related outcomes, clinical outcomes and economic outcomes were also extracted.
Ten studies using eight unique depression screening tools were identified. Ease of administration was the most common selection criterion (n=4) while no reason was given in four studies. Seven studies reported that through sc on clinical and economic outcomes. Larger, well-designed studies that use a highly accurate, easily administered screening tool and include patient referral and follow-up and pharmacist training are warranted to provide evidence on the impact of community pharmacists screening adults for depression.The current study evaluated the hypothesis that the administration of spheroidal adipose-derived stromal/stem cells (ASCs) promotes cell survival and arrests the progression of surgically induced osteoarthritis (OA) in a rat model. We also tested the optimal conditions for spheroid production from ASCs using microwell methods. The formation of ASC spheroids was optimized at a well diameter of 600 μm under cell concentrations of 106 cell/ml. When ASC spheroids cultured in 3D were compared with ASCs cultured in 2D monolayer, the cell survival and chondrogenic potential were enhanced while the apoptosis was reduced in ASC spheroids compared with ASCs in 2D monolayer culture. In vivo tracking of fluorescently labeled ASCs in the knee joints of rats with surgically induced OA showed longer fluorescent activity at a higher intensity in ASC spheroids than in ASC single-cell suspension. When OA-induced rats treated with ASC injection were sacrificed after 8 weeks, the OARSI score was enhanced in both ASC single-cell suspension and ASC spheroids compared with negative control, spheroid treatment resulting in a better score than single-cell treatment. However, injected cells were not detectable from the joints. These finding altogether suggests that ASC spheroids have better in vitro and in vivo survival and chondrogenic potential and exert greater regenerative effects for articular cartilage and arrest the progression of surgically induced OA better than ASCs in single-cell suspension by the paracrine mode of action. The study findings support the notion of developing cell therapeutics to treat OA based on ASC spheroid forms.
We report the frequency of previous HIV testing at baseline in men who have sex with men (MSM) who enrolled in an HIV self-testing (HIVST) randomized controlled trial [an HIV self-testing public health intervention (SELPHI)].
Criteria for enrolment were age ≥ 16years, being a man (including trans men) who ever had anal intercourse (AI) with a man, not being known to be HIV positive and having consented to national HIV database linkage. Using online survey baseline data (2017-2018), we assessed associations with never having tested for HIV and not testing in the previous 6months, among men who reported at least two recent condomless AI (CAI) partners.
A total of 10111 men were randomized; the median age was 33years [interquartile range (IQR) 26-44 years], 89% were white, 20% were born outside the UK, 0.8% were trans men, 47% were degree educated, and 8% and 4% had ever used and were currently using pre-exposure prophylaxis (PrEP), respectively. In the previous 3months, 89% reported AI and 72% reported CAI with at least one male partner. Overall, 17%, 33%, 54%, and 72% had tested for HIV in the last 3months, 6months, 12months and 2years, respectively; 13% had tested more than 2years ago and 15% had never tested. Among 3972 men reporting at least two recent CAI partners, only 22% had tested in the previous 3months. Region of residence and education level were independently associated with recent HIV testing. Among current PrEP users, 15% had not tested in the previous 6months.
Most men in SELPHI, particularly those reporting at least two CAI partners and current PrEP users, were not testing in line with current UK recommendations. The results of the trial will inform whether online promotion of HIVST addresses ongoing testing barriers.
Most men in SELPHI, particularly those reporting at least two CAI partners and current PrEP users, were not testing in line with current UK recommendations. The results of the trial will inform whether online promotion of HIVST addresses ongoing testing barriers.
Aggression, physical activities, and negatively toned content predominated in dream reports. The MoCA scores decreased significantly from baseline to follow-up. In the multivariate model, negative emotion index was the strongest predictor of cognitive decline. We found a significant positive association between negative emotions in dreams at baseline and subsequent reduction in MoCA scores. These findings suggest that some dream content in patients with PD could be considered a predictor of cognitive decline, independent of other factors known to influence either dream content or cognitive deterioration.Many inorganic materials can form crystals, but little is known about their enantioselective crystallization. Herein, we report on the enantioselective crystallization of ϵ-Zn(OH)2 (Wulfingite) chiral crystals by using amino acids. Crystals of ϵ-Zn(OH)2 were crystallized from supersaturated sodium hydroxide and zinc nitrate aqueous solutions in the presence of l- or d-arginine. All of the chiral measurements, such as selective chiral adsorption by circular dichroism (CD), chiral chromatography, and polarimetry measurements, clearly show chiral discrimination during the crystallization of ϵ-Zn(OH)2 . In addition, a new method has been developed for identifying chirality in crystals by using electron paramagnetic resonance (EPR). https://www.selleckchem.com/products/gs-441524.html Although the values of chiral induction of the ϵ-Zn(OH)2 crystals obtained are somewhat low, these values are still significant because they demonstrate that enantioselectivity during the crystallization of chiral inorganic crystals with chiral additives can be achieved. The method can be applied to many chiral inorganic systems. Understanding and controlling the crystallization of chiral inorganic crystals is important for gaining knowledge on the interaction of chiral molecules with inorganic surfaces. This knowledge can lead to an understanding of basic scientific questions such as the evolution of homochirality in biomolecules and the development of chiral inorganic crystals for a variety of purposes such as asymmetric catalysis and optical applications. Improving the identification of depression in adults in primary care can produce clinical and economic benefits. Community Pharmacists may play a role in screening for depression. To systematically review and evaluate the evidence for the feasibility, impact and cost-effectiveness of community pharmacists screening adults for depression. An electronic literature search using the databases EMBASE, PubMed and CINAHL Complete from January 2000 to September 2019 was undertaken to identify studies involving community pharmacists screening for depression. Data relating to sample size, population demographics and medical conditions of adults screened were extracted. Details around the screening model, process-related outcomes, clinical outcomes and economic outcomes were also extracted. Ten studies using eight unique depression screening tools were identified. Ease of administration was the most common selection criterion (n=4) while no reason was given in four studies. Seven studies reported that through sc on clinical and economic outcomes. Larger, well-designed studies that use a highly accurate, easily administered screening tool and include patient referral and follow-up and pharmacist training are warranted to provide evidence on the impact of community pharmacists screening adults for depression.The current study evaluated the hypothesis that the administration of spheroidal adipose-derived stromal/stem cells (ASCs) promotes cell survival and arrests the progression of surgically induced osteoarthritis (OA) in a rat model. We also tested the optimal conditions for spheroid production from ASCs using microwell methods. The formation of ASC spheroids was optimized at a well diameter of 600 μm under cell concentrations of 106 cell/ml. When ASC spheroids cultured in 3D were compared with ASCs cultured in 2D monolayer, the cell survival and chondrogenic potential were enhanced while the apoptosis was reduced in ASC spheroids compared with ASCs in 2D monolayer culture. In vivo tracking of fluorescently labeled ASCs in the knee joints of rats with surgically induced OA showed longer fluorescent activity at a higher intensity in ASC spheroids than in ASC single-cell suspension. When OA-induced rats treated with ASC injection were sacrificed after 8 weeks, the OARSI score was enhanced in both ASC single-cell suspension and ASC spheroids compared with negative control, spheroid treatment resulting in a better score than single-cell treatment. However, injected cells were not detectable from the joints. These finding altogether suggests that ASC spheroids have better in vitro and in vivo survival and chondrogenic potential and exert greater regenerative effects for articular cartilage and arrest the progression of surgically induced OA better than ASCs in single-cell suspension by the paracrine mode of action. The study findings support the notion of developing cell therapeutics to treat OA based on ASC spheroid forms. We report the frequency of previous HIV testing at baseline in men who have sex with men (MSM) who enrolled in an HIV self-testing (HIVST) randomized controlled trial [an HIV self-testing public health intervention (SELPHI)]. Criteria for enrolment were age ≥ 16years, being a man (including trans men) who ever had anal intercourse (AI) with a man, not being known to be HIV positive and having consented to national HIV database linkage. Using online survey baseline data (2017-2018), we assessed associations with never having tested for HIV and not testing in the previous 6months, among men who reported at least two recent condomless AI (CAI) partners. A total of 10111 men were randomized; the median age was 33years [interquartile range (IQR) 26-44 years], 89% were white, 20% were born outside the UK, 0.8% were trans men, 47% were degree educated, and 8% and 4% had ever used and were currently using pre-exposure prophylaxis (PrEP), respectively. In the previous 3months, 89% reported AI and 72% reported CAI with at least one male partner. Overall, 17%, 33%, 54%, and 72% had tested for HIV in the last 3months, 6months, 12months and 2years, respectively; 13% had tested more than 2years ago and 15% had never tested. Among 3972 men reporting at least two recent CAI partners, only 22% had tested in the previous 3months. Region of residence and education level were independently associated with recent HIV testing. Among current PrEP users, 15% had not tested in the previous 6months. Most men in SELPHI, particularly those reporting at least two CAI partners and current PrEP users, were not testing in line with current UK recommendations. The results of the trial will inform whether online promotion of HIVST addresses ongoing testing barriers. Most men in SELPHI, particularly those reporting at least two CAI partners and current PrEP users, were not testing in line with current UK recommendations. The results of the trial will inform whether online promotion of HIVST addresses ongoing testing barriers.0 Commentaires 0 Parts 146 Vue 0 Aperçu -
Signet ring cell carcinoma (SRCC) is challenging to recognise on intra-operative frozen sections, with known high false-negative rates. The objective of this study was to investigate common factors contributing to discrepancies between intra-operative frozen diagnoses and those made upon review of permanent sections, and summarise our experiences gained and lessons learned on minimising errors on intra-operative frozen diagnoses of gastrointestinal SRCC.
We retrospectively examined our pathology database from 25 May 2000 to 1January 2018 and re-reviewed intra-operative frozen sections and permanent haematoxylin and eosin (H&E) slides for specimens confirmed with SRCC on permanent sections. This study includes 83 specimens taken from 50 patients, with an accuracy of 85.5%. https://www.selleckchem.com/products/AS703026.html Main common factors causing discordance or deferral in recognising SRCC between intra-operative frozen procedures and permanent sections include (i) resemblance of clusters of SRCC cells with a myxoid background; (ii) disguise as normost important strategies to reduce diagnostic errors are (i) understanding the unusual histomorphological features of SRCC cells on frozen sections including, but not limited to, intracellular mucin depletion, absence of desmoplasia and no adjacent pre-cancer changes; and (ii) close attention to abrupt transition from normal architecture (e.g. glandular or submucosal loose connective tissue) to myxoid and/or inflammatory-like appearance, which potentially harbours SRCC.
Allergic rhinitis often gives rise to impaired quality of life and is believed to also affect cognitive function. We aimed to examine whether cognitive functions were impaired during grass pollen season in symptomatic allergic children and to relate the degree of impairment to quality of life and biomarkers related to stress and inflammation.
Forty-three grass pollen-allergic children (age 8-17 years) with non-satisfactory effect of medication (antihistamines and nasal steroids daily) during previous seasons were included. In addition, 26 matched non-allergic children were included as controls. Both groups performed cognitive tests (CANTAB) and completed Quality of Life questionnaires outside and during the pollen season. Blood samples were collected and analyzed for stress and inflammatory biomarkers. Pollen level was measured daily.
Impaired cognitive function was found in spatial working memory, where the allergic group made more errors compared to the non-allergic group during pollen season, but not off-season. No significant differences could be seen between the allergic group and the controls in the other tests investigating visual memory or attention. Quality of health questionnaires revealed more symptoms and impaired quality of life in allergic compared to non-allergic children, and increased symptoms in allergic children were associated with longer reaction time for simple movement during pollen season. No differences in stress or inflammatory biomarkers could be found between the groups.
Cognitive function was affected during pollen season in pollen-allergic children, and the more symptoms the allergic children had, the longer the reaction time in the cognitive tests.
Cognitive function was affected during pollen season in pollen-allergic children, and the more symptoms the allergic children had, the longer the reaction time in the cognitive tests.The present study was planned to detect the genes encoding carbapenemases, ESBLs and class 1 integron-integrase among bacteria obtained from retail goat meat. Fermenting and non-fermenting bacterial isolates (n = 57), recovered from 61 goat meat samples, were identified by 16S rRNA gene sequencing. Antimicrobial susceptibility of isolates was tested by the broth dilution method using ceftazidime, cefotaxime, meropenem and imipenem. Plasmids were isolated and tested for their physical characters. Plasmids were subjected to screening of carbapenemase, ESBL and intI1 gene. Conjugation assay was performed using blaNDM -positive isolates as the donor, and Escherichia coli HB101 as the recipient. Isolates showed the high rates of resistance to ceftazidime (77·2%), cefotaxime (70·2%), meropenem (22·8%) and imipenem (17·5%). They showed variability in number and size (~1 to >20 kb) of plasmids. Among all, 1, 4, 13 and 31 isolates showed the blaKPC , blaNDM , blaSHV and blaTEM genes, respectively. The blaKPC-2 gene was observed in one E. coli isolate. The blaNDM-1 gene was detected in Stenotrophomonas maltophilia (n = 2), Acinetobacter baumannii (n = 1) and Ochrobactrum anthropi (n = 1) isolates. These isolates co-harboured the blaTEM and blaSHV genes. The intI1 gene was detected in 22 (38·6%) isolates, and 16 of these isolates showed the carbapenemase and/or ESBL genes. The conjugative movement of blaNDM gene could not be proved after three repetitive mating experiments. The presence of genes encoding carbapenemases and ESBLs in bacteria from goat meat poses public health risks.
Opioid prescribing by dentists for older patients receiving medications with potential contraindications and the subsequent impact on acute care outcomes is not well described.
Our objective of this paper was to evaluate the use of potentially inappropriate medication combinations (PIMCs) involving opioids prescribed by dentists according to the Beers Criteria and risks of 30-day emergency department (ED) visits and all-cause hospitalization among commercially insured dental patients ages 65 years and older.
We conducted a retrospective cohort study of 40,800 older dental patient visits in which opioids were prescribed between 2011 and 2015 using the IBM MarketScan databases. Data collection from dental, medical, and pharmacy claims included information on the concurrent use of PIMCs and outcomes of all-cause acute care utilization over the 30-day period after dental encounters.
For the overall cohort, the median age was 69 years, and 45% were women. The prevalence of PIMCs per Beers Criteria was 10.4%. A total of 947 all-cause acute care events were observed in the 30 days post-dental visit. Patients with PIMCs involving opioids prescribed by dentists according to the Beers Criteria had higher rates of acute care use (3.3% vs 2.2%, p<0.001), which were associated with an increased risk of all-cause acute care utilization (adjusted risk ratio [RR] 1.23, 95% confidence interval [CI] 1.02-1.48). A dose-response relationship was seen with increasing oral morphine equivalents prescribed and increased acute care utilization (p<0.001).
A significant proportion of older patients receiving opioids at dental visits use psychotropic medications that in combination should be avoided according to the American Geriatric Society Beers Criteria.
A significant proportion of older patients receiving opioids at dental visits use psychotropic medications that in combination should be avoided according to the American Geriatric Society Beers Criteria.
Signet ring cell carcinoma (SRCC) is challenging to recognise on intra-operative frozen sections, with known high false-negative rates. The objective of this study was to investigate common factors contributing to discrepancies between intra-operative frozen diagnoses and those made upon review of permanent sections, and summarise our experiences gained and lessons learned on minimising errors on intra-operative frozen diagnoses of gastrointestinal SRCC. We retrospectively examined our pathology database from 25 May 2000 to 1January 2018 and re-reviewed intra-operative frozen sections and permanent haematoxylin and eosin (H&E) slides for specimens confirmed with SRCC on permanent sections. This study includes 83 specimens taken from 50 patients, with an accuracy of 85.5%. https://www.selleckchem.com/products/AS703026.html Main common factors causing discordance or deferral in recognising SRCC between intra-operative frozen procedures and permanent sections include (i) resemblance of clusters of SRCC cells with a myxoid background; (ii) disguise as normost important strategies to reduce diagnostic errors are (i) understanding the unusual histomorphological features of SRCC cells on frozen sections including, but not limited to, intracellular mucin depletion, absence of desmoplasia and no adjacent pre-cancer changes; and (ii) close attention to abrupt transition from normal architecture (e.g. glandular or submucosal loose connective tissue) to myxoid and/or inflammatory-like appearance, which potentially harbours SRCC. Allergic rhinitis often gives rise to impaired quality of life and is believed to also affect cognitive function. We aimed to examine whether cognitive functions were impaired during grass pollen season in symptomatic allergic children and to relate the degree of impairment to quality of life and biomarkers related to stress and inflammation. Forty-three grass pollen-allergic children (age 8-17 years) with non-satisfactory effect of medication (antihistamines and nasal steroids daily) during previous seasons were included. In addition, 26 matched non-allergic children were included as controls. Both groups performed cognitive tests (CANTAB) and completed Quality of Life questionnaires outside and during the pollen season. Blood samples were collected and analyzed for stress and inflammatory biomarkers. Pollen level was measured daily. Impaired cognitive function was found in spatial working memory, where the allergic group made more errors compared to the non-allergic group during pollen season, but not off-season. No significant differences could be seen between the allergic group and the controls in the other tests investigating visual memory or attention. Quality of health questionnaires revealed more symptoms and impaired quality of life in allergic compared to non-allergic children, and increased symptoms in allergic children were associated with longer reaction time for simple movement during pollen season. No differences in stress or inflammatory biomarkers could be found between the groups. Cognitive function was affected during pollen season in pollen-allergic children, and the more symptoms the allergic children had, the longer the reaction time in the cognitive tests. Cognitive function was affected during pollen season in pollen-allergic children, and the more symptoms the allergic children had, the longer the reaction time in the cognitive tests.The present study was planned to detect the genes encoding carbapenemases, ESBLs and class 1 integron-integrase among bacteria obtained from retail goat meat. Fermenting and non-fermenting bacterial isolates (n = 57), recovered from 61 goat meat samples, were identified by 16S rRNA gene sequencing. Antimicrobial susceptibility of isolates was tested by the broth dilution method using ceftazidime, cefotaxime, meropenem and imipenem. Plasmids were isolated and tested for their physical characters. Plasmids were subjected to screening of carbapenemase, ESBL and intI1 gene. Conjugation assay was performed using blaNDM -positive isolates as the donor, and Escherichia coli HB101 as the recipient. Isolates showed the high rates of resistance to ceftazidime (77·2%), cefotaxime (70·2%), meropenem (22·8%) and imipenem (17·5%). They showed variability in number and size (~1 to >20 kb) of plasmids. Among all, 1, 4, 13 and 31 isolates showed the blaKPC , blaNDM , blaSHV and blaTEM genes, respectively. The blaKPC-2 gene was observed in one E. coli isolate. The blaNDM-1 gene was detected in Stenotrophomonas maltophilia (n = 2), Acinetobacter baumannii (n = 1) and Ochrobactrum anthropi (n = 1) isolates. These isolates co-harboured the blaTEM and blaSHV genes. The intI1 gene was detected in 22 (38·6%) isolates, and 16 of these isolates showed the carbapenemase and/or ESBL genes. The conjugative movement of blaNDM gene could not be proved after three repetitive mating experiments. The presence of genes encoding carbapenemases and ESBLs in bacteria from goat meat poses public health risks. Opioid prescribing by dentists for older patients receiving medications with potential contraindications and the subsequent impact on acute care outcomes is not well described. Our objective of this paper was to evaluate the use of potentially inappropriate medication combinations (PIMCs) involving opioids prescribed by dentists according to the Beers Criteria and risks of 30-day emergency department (ED) visits and all-cause hospitalization among commercially insured dental patients ages 65 years and older. We conducted a retrospective cohort study of 40,800 older dental patient visits in which opioids were prescribed between 2011 and 2015 using the IBM MarketScan databases. Data collection from dental, medical, and pharmacy claims included information on the concurrent use of PIMCs and outcomes of all-cause acute care utilization over the 30-day period after dental encounters. For the overall cohort, the median age was 69 years, and 45% were women. The prevalence of PIMCs per Beers Criteria was 10.4%. A total of 947 all-cause acute care events were observed in the 30 days post-dental visit. Patients with PIMCs involving opioids prescribed by dentists according to the Beers Criteria had higher rates of acute care use (3.3% vs 2.2%, p<0.001), which were associated with an increased risk of all-cause acute care utilization (adjusted risk ratio [RR] 1.23, 95% confidence interval [CI] 1.02-1.48). A dose-response relationship was seen with increasing oral morphine equivalents prescribed and increased acute care utilization (p<0.001). A significant proportion of older patients receiving opioids at dental visits use psychotropic medications that in combination should be avoided according to the American Geriatric Society Beers Criteria. A significant proportion of older patients receiving opioids at dental visits use psychotropic medications that in combination should be avoided according to the American Geriatric Society Beers Criteria.0 Commentaires 0 Parts 29 Vue 0 Aperçu -
Endolymphatic sac tumors (ELSTs) are rare, papillary adenomatous tumors that arise from the endothelium of the endolymphatic sac. We demonstrate a difficult case of endolymphatic sac tumor and how it is managed via transcanal endoscopic assisted technique, with discussion of feasibility of transcanal approach to lateral skull base tumor. © 2019 PLA General Hospital Department of Otolaryngology Head and Neck Surgery. Production and hosting by Elsevier (Singapore) Pte Ltd.Ozurdex® 0.7 mg (dexamethasone 0.7 mg implant, Allergan, Dublin, Ireland), an intravitreal biodegradable implant, is indicated for cystoid macular edema due to various causes. One of its known and uncommon complications is implant migration to the anterior chamber, causing corneal edema that, in some cases, is irreversible. Reported risk factors for device migration are open or defective lens capsule and prior history of vitrectomy. We present a case of dexamethasone implant migration through a congenital iris coloboma in a pseudophakic patient with an intact lens capsule. The patient is a 56-year-old pseudophakic man with a history of congenital iris coloboma, myopia, retinal tears, and a branch retinal vein occlusion with subsequent cystoid macular edema resistant to anti-VEGF medications but responsive to corticosteroids. He presented with sudden painless decreased vision in his left eye, 8 weeks following dexamethasone implant (Ozurdex) injection to the same eye. Upon presentation, he was diagnosed with corneal edema caused by anterior chamber migration of the implant. He was referred for immediate surgical intervention to extract the implant, with a resolution of the corneal edema within 2 weeks postoperatively. To conclude, this is the first case that reports Ozurdex implant migration through an iris coloboma in the setting of an intact posterior capsule. In addition, we describe a novel surgical approach for implant removal from the anterior chamber that is simple and efficient. Copyright © 2020 by S. Karger AG, Basel.Background Iris microhemangiomatosis is a rare vascular iris tumor, with potential severe complications such as increased intraocular pressure (IOP). We aim to describe a case report of a patient presenting with hyphema secondary to iris microhemangiomatosis triggered by excessive high blood pressure. https://www.selleckchem.com/products/fot1-cn128-hydrochloride.html Case Presentation A 74-year-old woman was treated for hypertensive crisis. After her high blood pressure had been controlled and stabilized, she was discharged home. However, the same day, she complained about an acute decrease in vision in her left eye. Best corrected visual acuity was 20/20 on the right eye and 20/200 on the left eye. On biomicroscopy, a hyphema was seen. Iris neovascularization was absent, IOP and fundus examination were normal. After spontaneous resolution of the hyphema, a fluorescein angiography of the anterior segment was performed, which revealed bilateral subtle early hyperfluorescence with late staining scattered at the pupillary margin. The patient was diagnosed with iris microhemangiomatosis. During the follow-up of 24 months, the blood pressure was stable and well controlled. The patient did not experience any recurrent hemorrhage. Discussion and Conclusion Spontaneous hyphema is the most common complication of iris vascular tumors. We report the occurrence of a spontaneous hyphema triggered by uncontrolled blood pressure in a patient with a very rare condition, i.e., iris microhemangiomatosis. In order to avoid complications of microhemangiomatosis such as uncontrolled glaucoma or recurrent bleeding requiring surgery, blood pressure should be monitored closely and controlled. Copyright © 2020 by S. Karger AG, Basel.We observed repeated episodes of rapid increases in intraocular pressure (IOP) considered to be caused by an in-the-bag intraocular lens (IOL) instability in a patient with an implanted IOL. As acute glaucoma attack-like increase in IOP was noted in the left eye on November 8, she was admitted to Wakayama Medical University Hospital. The findings at the first examination included an IOP of 62 mm Hg, instability of a PMMA one-piece IOL, shallow anterior chamber, narrow angle, moderate mydriasis, and loss of pupillary light reaction in the left avitreous eye. On November 15, a 6-mm Hg increase in IOP was observed during 60-min dark room prone provocative testing. After the first examination, the patient perceived pain and reduced visual acuity of the left eye and emergently consulted our hospital twice. Despite miosis, normalization of the anterior chamber depth and IOP with widening of the angle were achieved by resting in the supine position. These episodes were thought to be caused by instability and anterior shift of the IOL. On January 17, 2018, suture fixation of the in-the-bag IOL was performed. The IOL was fixed by transscleral suturing of the bilateral supporting parts to the sclera. Recurrence of sudden ophthalmalgia, instability of the in-the-bag IOL, and an increase in IOP have not been observed for 1 year after surgical treatment. Instability of an in-the-bag IOL caused repeated acute angle-closure glaucoma-like attacks. The situation was well treated by suturing and fixing the haptics of IOL to the sclera. Copyright © 2020 by S. Karger AG, Basel.A cataract surgery in both eyes was scheduled for an 81-year-old female patient. However, ophthalmic examination revealed marked iridodonesis, phacodonesis and pseudoexfoliative material on the surface of the lens in both eyes indicating weak zonules caused by pseudoexfoliation syndrome, which was more pronounced in the left eye. Cataract surgery was performed initially in the left eye by phacoemulsification. Additionally, iris hooks and capsular tension ring (CTR) were used to stabilize the capsular bag, and the haptic of the intraocular lens (IOL) was sutured to the iris at the end of the surgery. The same procedure except haptic suturing was performed in the right eye after 6 months. The left eye remained stable, whereas the right eye developed considerable anterior capsular contraction 2 months postoperatively. Neodymium-doped yttrium aluminum garnet (NdYAG) laser capsulotomy was performed to treat the condition. Moreover, 3 years after the initial surgery, late IOL-CTR-capsular-bag complex dislocation developed in the right eye, and reposition surgery was performed.
Endolymphatic sac tumors (ELSTs) are rare, papillary adenomatous tumors that arise from the endothelium of the endolymphatic sac. We demonstrate a difficult case of endolymphatic sac tumor and how it is managed via transcanal endoscopic assisted technique, with discussion of feasibility of transcanal approach to lateral skull base tumor. © 2019 PLA General Hospital Department of Otolaryngology Head and Neck Surgery. Production and hosting by Elsevier (Singapore) Pte Ltd.Ozurdex® 0.7 mg (dexamethasone 0.7 mg implant, Allergan, Dublin, Ireland), an intravitreal biodegradable implant, is indicated for cystoid macular edema due to various causes. One of its known and uncommon complications is implant migration to the anterior chamber, causing corneal edema that, in some cases, is irreversible. Reported risk factors for device migration are open or defective lens capsule and prior history of vitrectomy. We present a case of dexamethasone implant migration through a congenital iris coloboma in a pseudophakic patient with an intact lens capsule. The patient is a 56-year-old pseudophakic man with a history of congenital iris coloboma, myopia, retinal tears, and a branch retinal vein occlusion with subsequent cystoid macular edema resistant to anti-VEGF medications but responsive to corticosteroids. He presented with sudden painless decreased vision in his left eye, 8 weeks following dexamethasone implant (Ozurdex) injection to the same eye. Upon presentation, he was diagnosed with corneal edema caused by anterior chamber migration of the implant. He was referred for immediate surgical intervention to extract the implant, with a resolution of the corneal edema within 2 weeks postoperatively. To conclude, this is the first case that reports Ozurdex implant migration through an iris coloboma in the setting of an intact posterior capsule. In addition, we describe a novel surgical approach for implant removal from the anterior chamber that is simple and efficient. Copyright © 2020 by S. Karger AG, Basel.Background Iris microhemangiomatosis is a rare vascular iris tumor, with potential severe complications such as increased intraocular pressure (IOP). We aim to describe a case report of a patient presenting with hyphema secondary to iris microhemangiomatosis triggered by excessive high blood pressure. https://www.selleckchem.com/products/fot1-cn128-hydrochloride.html Case Presentation A 74-year-old woman was treated for hypertensive crisis. After her high blood pressure had been controlled and stabilized, she was discharged home. However, the same day, she complained about an acute decrease in vision in her left eye. Best corrected visual acuity was 20/20 on the right eye and 20/200 on the left eye. On biomicroscopy, a hyphema was seen. Iris neovascularization was absent, IOP and fundus examination were normal. After spontaneous resolution of the hyphema, a fluorescein angiography of the anterior segment was performed, which revealed bilateral subtle early hyperfluorescence with late staining scattered at the pupillary margin. The patient was diagnosed with iris microhemangiomatosis. During the follow-up of 24 months, the blood pressure was stable and well controlled. The patient did not experience any recurrent hemorrhage. Discussion and Conclusion Spontaneous hyphema is the most common complication of iris vascular tumors. We report the occurrence of a spontaneous hyphema triggered by uncontrolled blood pressure in a patient with a very rare condition, i.e., iris microhemangiomatosis. In order to avoid complications of microhemangiomatosis such as uncontrolled glaucoma or recurrent bleeding requiring surgery, blood pressure should be monitored closely and controlled. Copyright © 2020 by S. Karger AG, Basel.We observed repeated episodes of rapid increases in intraocular pressure (IOP) considered to be caused by an in-the-bag intraocular lens (IOL) instability in a patient with an implanted IOL. As acute glaucoma attack-like increase in IOP was noted in the left eye on November 8, she was admitted to Wakayama Medical University Hospital. The findings at the first examination included an IOP of 62 mm Hg, instability of a PMMA one-piece IOL, shallow anterior chamber, narrow angle, moderate mydriasis, and loss of pupillary light reaction in the left avitreous eye. On November 15, a 6-mm Hg increase in IOP was observed during 60-min dark room prone provocative testing. After the first examination, the patient perceived pain and reduced visual acuity of the left eye and emergently consulted our hospital twice. Despite miosis, normalization of the anterior chamber depth and IOP with widening of the angle were achieved by resting in the supine position. These episodes were thought to be caused by instability and anterior shift of the IOL. On January 17, 2018, suture fixation of the in-the-bag IOL was performed. The IOL was fixed by transscleral suturing of the bilateral supporting parts to the sclera. Recurrence of sudden ophthalmalgia, instability of the in-the-bag IOL, and an increase in IOP have not been observed for 1 year after surgical treatment. Instability of an in-the-bag IOL caused repeated acute angle-closure glaucoma-like attacks. The situation was well treated by suturing and fixing the haptics of IOL to the sclera. Copyright © 2020 by S. Karger AG, Basel.A cataract surgery in both eyes was scheduled for an 81-year-old female patient. However, ophthalmic examination revealed marked iridodonesis, phacodonesis and pseudoexfoliative material on the surface of the lens in both eyes indicating weak zonules caused by pseudoexfoliation syndrome, which was more pronounced in the left eye. Cataract surgery was performed initially in the left eye by phacoemulsification. Additionally, iris hooks and capsular tension ring (CTR) were used to stabilize the capsular bag, and the haptic of the intraocular lens (IOL) was sutured to the iris at the end of the surgery. The same procedure except haptic suturing was performed in the right eye after 6 months. The left eye remained stable, whereas the right eye developed considerable anterior capsular contraction 2 months postoperatively. Neodymium-doped yttrium aluminum garnet (NdYAG) laser capsulotomy was performed to treat the condition. Moreover, 3 years after the initial surgery, late IOL-CTR-capsular-bag complex dislocation developed in the right eye, and reposition surgery was performed.0 Commentaires 0 Parts 40 Vue 0 Aperçu -
The detection of lymph-node metastases (N1) with conventional imaging such as magnetic resonance imaging (MRI) and computed tomography (CT) is inadequate for primarily diagnosed prostate cancer (PCa). Prostate-specific membrane antigen (PSMA) PET/CT is successfully introduced for the staging of (biochemically) recurrent PCa. Besides the frequently used
gallium-labelled PSMA tracers,
fluorine-labelled PSMA tracers are available. This study examined the diagnostic accuracy of
F-DCFPyL (PSMA) PET/CT for lymph-node staging in primary PCa.
This was a prospective, multicentre cohort study. Patients with primary PCa underwent
F-DCFPyL PET/CT prior to robot-assisted radical prostatectomy (RARP) with extended pelvic lymph-node dissection (ePLND). Patients were included between October 2017 and January 2020. A Memorial Sloan Kettering Cancer Centre (MSKCC) nomogram risk probability of ≥ 8% of lymph-node metastases was set to perform ePLND. All images were reviewed by two experienced nuclear physicians, and T imaging cannot replace diagnostic ePLND. Further research is necessary to define the exact place of PSMA PET/CT imaging in the primary staging of PCa.Previous studies have provided contradictory information regarding the activation of perceptual information in a changing discourse context. The current study examines the continued activation of color in mental simulations across one (Experiment 1), two (Experiment 2), and five sentences (Experiment 3), using a sentence-picture verification paradigm. In Experiment 1, the sentence either contained a reference to a color (e.g., a red bicycle) or no reference to a color (e.g., bicycle). In Experiments 2 and 3, either the first or the final sentence contained a reference to a color. Participants responded to pictures either matching the color mentioned in the sentence, or shown in grayscale. The results illustrated that color was activated in mental simulations when the final sentence contained a reference to color. When the target object (e.g., bicycle) was mentioned in all sentences (i.e., in Experiment 2), color remained activated in the mental simulation, even when only the first sentence made a reference to a color. https://www.selleckchem.com/products/vorapaxar.html When the focus of the story was shifted elsewhere and the target object was not present across all sentences (i.e., in Experiment 3), color was no longer activated in the mental simulation. These findings suggest that color remains active in mental simulations so long as the target object is present in every sentence. As soon as the focus of the story shifts to another event, this perceptual information is deactivated in the mental simulation. As such, there is no continued activation of color across a broader discourse context.The emergence and transmission of false memories is well documented in individual memory tasks. However, the examination of these processes in the context of social interaction still presents mixed findings. The present study further examines the potential of collaboration in minimizing the acceptance and retrieval of misinformation. In Experiment 1 participants watched a video immediately followed by a recall task (collaborative vs. nominal). Then a questionnaire (collaborative vs. individual) containing true information and misinformation about the video was presented. After the questionnaire, participants were given a new recall task (collaborative vs. nominal). We expected that collaboration at encoding and at retrieval would reduce the acceptance and recall of misinformation. Results revealed, as expected, that collaborative groups performed better in answering the questionnaire, accepting more correct information and rejecting more misinformation. Subsequently, they also recalled less misinformation. However, their recall of correct information was also lower. To rule out the potential role of collaborative inhibition in explaining the results observed in the final recall, in Experiment 2 the collaborative manipulation occurred only during the questionnaire and both recall tasks were individual. Again, participants answering the questionnaire collaboratively performed better than those answering individually. Critically, in a subsequent individual recall task, they produced less false memories and more correct information than those answering the questionnaire individually. These results suggest that collaboration during information encoding reduces the acceptance of misinformation and its subsequent recall.
Knowledge of potential compression sites of peripheral nerves is important to the clinician and surgeon alike. One anatomical location for potential compression of the radial nerve, which is rarely mentioned in the literature, is at the proximal humeral attachment of the lateral head of the triceps brachii at the level of the proximal spiral groove. As no anatomical studies have been devoted to this band, the present study was conducted.
Ten adult fresh-frozen cadavers were dissected and the lateral head's attachment onto the posterior humerus evaluated for a band. This anatomy and its relation to the radial nerve during range of motion of the elbow and forearm were evaluated.
A band was found on 15 of 20 arms. On five sides, the band was comprised of grossly muscle fibers of the lateral head of the triceps brachii and was not tendinous. The bands were crescent-shaped, straight, and duplicated on nine, five, and one arm, respectively. The length of the bands ranged from 1.1 to 2.2cm (mean 1.54cm). The width of the bands ranged from 0.5 to 1.1cm (mean 0.8cm). With elbow extension and the forearm in neutral, all bands were lax. With elbow extension and the forearm supinated, the bands became tauter less the muscular bands. In elbow extension and with the forearm in supination, the bands became most taut less the muscular bands.
The presence of a fibrous band extending from the lateral head of the triceps brachii is common and should be among the differential diagnoses of anatomical sites for potential proximal radial nerve compression when other more common locations are ruled out.
The presence of a fibrous band extending from the lateral head of the triceps brachii is common and should be among the differential diagnoses of anatomical sites for potential proximal radial nerve compression when other more common locations are ruled out.
The detection of lymph-node metastases (N1) with conventional imaging such as magnetic resonance imaging (MRI) and computed tomography (CT) is inadequate for primarily diagnosed prostate cancer (PCa). Prostate-specific membrane antigen (PSMA) PET/CT is successfully introduced for the staging of (biochemically) recurrent PCa. Besides the frequently used gallium-labelled PSMA tracers, fluorine-labelled PSMA tracers are available. This study examined the diagnostic accuracy of F-DCFPyL (PSMA) PET/CT for lymph-node staging in primary PCa. This was a prospective, multicentre cohort study. Patients with primary PCa underwent F-DCFPyL PET/CT prior to robot-assisted radical prostatectomy (RARP) with extended pelvic lymph-node dissection (ePLND). Patients were included between October 2017 and January 2020. A Memorial Sloan Kettering Cancer Centre (MSKCC) nomogram risk probability of ≥ 8% of lymph-node metastases was set to perform ePLND. All images were reviewed by two experienced nuclear physicians, and T imaging cannot replace diagnostic ePLND. Further research is necessary to define the exact place of PSMA PET/CT imaging in the primary staging of PCa.Previous studies have provided contradictory information regarding the activation of perceptual information in a changing discourse context. The current study examines the continued activation of color in mental simulations across one (Experiment 1), two (Experiment 2), and five sentences (Experiment 3), using a sentence-picture verification paradigm. In Experiment 1, the sentence either contained a reference to a color (e.g., a red bicycle) or no reference to a color (e.g., bicycle). In Experiments 2 and 3, either the first or the final sentence contained a reference to a color. Participants responded to pictures either matching the color mentioned in the sentence, or shown in grayscale. The results illustrated that color was activated in mental simulations when the final sentence contained a reference to color. When the target object (e.g., bicycle) was mentioned in all sentences (i.e., in Experiment 2), color remained activated in the mental simulation, even when only the first sentence made a reference to a color. https://www.selleckchem.com/products/vorapaxar.html When the focus of the story was shifted elsewhere and the target object was not present across all sentences (i.e., in Experiment 3), color was no longer activated in the mental simulation. These findings suggest that color remains active in mental simulations so long as the target object is present in every sentence. As soon as the focus of the story shifts to another event, this perceptual information is deactivated in the mental simulation. As such, there is no continued activation of color across a broader discourse context.The emergence and transmission of false memories is well documented in individual memory tasks. However, the examination of these processes in the context of social interaction still presents mixed findings. The present study further examines the potential of collaboration in minimizing the acceptance and retrieval of misinformation. In Experiment 1 participants watched a video immediately followed by a recall task (collaborative vs. nominal). Then a questionnaire (collaborative vs. individual) containing true information and misinformation about the video was presented. After the questionnaire, participants were given a new recall task (collaborative vs. nominal). We expected that collaboration at encoding and at retrieval would reduce the acceptance and recall of misinformation. Results revealed, as expected, that collaborative groups performed better in answering the questionnaire, accepting more correct information and rejecting more misinformation. Subsequently, they also recalled less misinformation. However, their recall of correct information was also lower. To rule out the potential role of collaborative inhibition in explaining the results observed in the final recall, in Experiment 2 the collaborative manipulation occurred only during the questionnaire and both recall tasks were individual. Again, participants answering the questionnaire collaboratively performed better than those answering individually. Critically, in a subsequent individual recall task, they produced less false memories and more correct information than those answering the questionnaire individually. These results suggest that collaboration during information encoding reduces the acceptance of misinformation and its subsequent recall. Knowledge of potential compression sites of peripheral nerves is important to the clinician and surgeon alike. One anatomical location for potential compression of the radial nerve, which is rarely mentioned in the literature, is at the proximal humeral attachment of the lateral head of the triceps brachii at the level of the proximal spiral groove. As no anatomical studies have been devoted to this band, the present study was conducted. Ten adult fresh-frozen cadavers were dissected and the lateral head's attachment onto the posterior humerus evaluated for a band. This anatomy and its relation to the radial nerve during range of motion of the elbow and forearm were evaluated. A band was found on 15 of 20 arms. On five sides, the band was comprised of grossly muscle fibers of the lateral head of the triceps brachii and was not tendinous. The bands were crescent-shaped, straight, and duplicated on nine, five, and one arm, respectively. The length of the bands ranged from 1.1 to 2.2cm (mean 1.54cm). The width of the bands ranged from 0.5 to 1.1cm (mean 0.8cm). With elbow extension and the forearm in neutral, all bands were lax. With elbow extension and the forearm supinated, the bands became tauter less the muscular bands. In elbow extension and with the forearm in supination, the bands became most taut less the muscular bands. The presence of a fibrous band extending from the lateral head of the triceps brachii is common and should be among the differential diagnoses of anatomical sites for potential proximal radial nerve compression when other more common locations are ruled out. The presence of a fibrous band extending from the lateral head of the triceps brachii is common and should be among the differential diagnoses of anatomical sites for potential proximal radial nerve compression when other more common locations are ruled out.0 Commentaires 0 Parts 27 Vue 0 Aperçu
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