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Results BTZ-sensitive cells displayed lower basal proteasomal activities. Similar activities of all three major ABC transporter proteins were detected in BTZ-sensitive and resistant cells. Sensitive cells showed deficiencies in triggering canonical prosurvival UPR provoked by endoplasmic reticulum (ER) stress induction. BTZ treatment did not increase unfolded protein levels or induced GRP78-mediated UPR. BTZ-resistant cells and BTZ-refractory patients exhibited lower sXBP1 levels. Apoptosis of BTZ-sensitive cells was correlating with induction of p53 and NOXA. Tumor cytogenetics and NGS analysis revealed more frequent TP53 deletions and mutations in BTZ-refractory MM patients. Conclusions We identified low sXBP1 levels and TP53 abnormalities as factors correlating with bortezomib resistance in MM. Therefore, determination of sXBP1 levels and TP53 status prior to BTZ treatment in MM may be beneficial to predict BTZ resistance. https://www.selleckchem.com/pharmacological_epigenetics.html Copyright © 2020 Borjan, Kern, Steiner, Gunsilius, Wolf and Untergasser.Purpose Retaining quality of life in patients treated with SBRT for prostate cancer remains paramount. As such, balancing the benefits of treatment against the effects of therapy on elderly patients is essential. The EORTC QLQ-ELD14 (ELD-14) is a validated questionnaire with a domain dedicated to burden of illness and treatment in the elderly. The Expanded Prostate Cancer Index Composite (EPIC)-26 is a validated questionnaire which measures urinary, bowel, sexual, and hormonal symptoms. This study reports trends in self-reported burden in patients with prostate cancer treated with SBRT and reveals convergence of self-reported burden with treatment related side effects obtained from the EPIC-26 questionnaire. Methods All patients ≥70 years old, with localized prostate cancer treated with SBRT ± ADT at Medstar Georgetown University Hospital from 2013 to 2018 and had completed the ELD-14 were eligible for inclusion in this cross-sectional cohort study. Percentage of responses to questions related to disease and ore burden than their non-ADT counterparts. Conclusions This cross-sectional study suggests a minority of patients reported high burden from their clinically localized prostate cancer or from their SBRT treatment. Self-reported burden converged well with lower EPIC scores in multiple domains. Copyright © 2020 Aghdam, Pepin, Carrasquilla, Johnson, Danner, Ayoob, Yung, Lei, Collins, Kumar, Suy, Lynch and Collins.Theoretical and empirical work over the past several decades suggests that oncogenesis and disease progression represents an evolutionary story. Despite this knowledge, current anti-resistance strategies to drugs are often managed through treating cancers as independent biological agents divorced from human activity. Yet once drug resistance to cancer treatment is understood as a product of artificial or anthropogenic rather than unconscious selection, oncologists could improve outcomes for their patients by consulting evolutionary studies of oncology prior to clinical trial and treatment plan design. In the setting of multiple cancer types, for example, a machine learning algorithm can predict the genetic changes known to be related to drug resistance. In this way, a unity between technology and theory might have practical clinical implications-and may pave the way for a new paradigm shift in medicine. Copyright © 2020 Goodman and Ashrafian.Background Radiation-associated osteosarcoma (RAO) is a rare, life-threatening complication from radiation. Many physicians presume RAO has a worse prognosis than sporadic osteosarcoma (SO), although limited objective data exist. We conducted a retrospective study comparing these entities. Methods We identified adults treated at our institution with osteosarcoma (1990-2016) and categorized tumors as SO or RAO based on location within a prior radiation field. We extracted data on demographics, treatment and primary malignancy and examined available tumor samples for MTA-1 and ezrin using immunohistochemistry (IHC). Results Of 159 identified patients, 28 had RAO, diagnosed at a median interval from radiation of 11.5 years (1.5-28 years). Median follow-up was 2.8 years (0.1-19.6 years). Median progression free survival (PFS) and overall survival (OS) were not significantly different in the small population of patients with metastases, SO (n = 20) vs. RAO (n = 6) PFS 10.3 months vs. 4.8 months (p = 0.45) and OS 15.6 months vs. 6.1 months (p = 0.96), respectively. For the larger group with localized disease, median relapse-free survival (RFS) and OS were significantly different, NR vs. 12.2 months (p less then 0.001) and NR vs. 27.6 months (p = 0.001) in SO (n = 111) vs. RAO (n = 22), respectively. On IHC, there were significant differences in distribution of high, intermediate or low MTA-1 (p = 0.015) and ezrin (p = 0.002) between RAO and SO tumors. Conclusions Patients with metastases at diagnosis fared poorly irrespective of prior radiation. RAO patients with localized disease had worse outcomes without detectable differences in therapy rendered or treatment effect in resected specimens. Higher expression of MTA-1 in RAO patients may suggest an underlying difference in tumor biology to explain differences in outcomes. Copyright © 2020 Siontis, McHugh, Roberts, Zhao, Thomas, Owen, Baker, Biermann, Schuetze and Chugh.Concurrent chemoradiotherapy with high-dose cisplatin (100 mg/m2 every 3 weeks) is the preferred regimen with curative intent for patients with unresected locally advanced squamous cell carcinoma of the head and neck (LA SCCHN). This treatment is associated with acute and late toxicities, including myelosuppression, severe nausea/vomiting, irreversible renal failure, hearing loss, and neurotoxicity. Because of cisplatin's safety profile, treatment adherence to high-dose cisplatin can be suboptimal. Patients commonly receive less than the total cumulative target dose of 300 mg/m2 or the minimum recommended dose of 200 mg/m2, which can have a negative impact on locoregional control and survival. Alternatively, cetuximab plus radiotherapy may be most suitable for patients at high risk of non-adherence to high-dose cisplatin. We discuss the baseline characteristics dictating the unsuitability/borderline unsuitability of cisplatin and the available alternative evidence-based treatment regimens for patients with LA SCCHN.
Results BTZ-sensitive cells displayed lower basal proteasomal activities. Similar activities of all three major ABC transporter proteins were detected in BTZ-sensitive and resistant cells. Sensitive cells showed deficiencies in triggering canonical prosurvival UPR provoked by endoplasmic reticulum (ER) stress induction. BTZ treatment did not increase unfolded protein levels or induced GRP78-mediated UPR. BTZ-resistant cells and BTZ-refractory patients exhibited lower sXBP1 levels. Apoptosis of BTZ-sensitive cells was correlating with induction of p53 and NOXA. Tumor cytogenetics and NGS analysis revealed more frequent TP53 deletions and mutations in BTZ-refractory MM patients. Conclusions We identified low sXBP1 levels and TP53 abnormalities as factors correlating with bortezomib resistance in MM. Therefore, determination of sXBP1 levels and TP53 status prior to BTZ treatment in MM may be beneficial to predict BTZ resistance. https://www.selleckchem.com/pharmacological_epigenetics.html Copyright © 2020 Borjan, Kern, Steiner, Gunsilius, Wolf and Untergasser.Purpose Retaining quality of life in patients treated with SBRT for prostate cancer remains paramount. As such, balancing the benefits of treatment against the effects of therapy on elderly patients is essential. The EORTC QLQ-ELD14 (ELD-14) is a validated questionnaire with a domain dedicated to burden of illness and treatment in the elderly. The Expanded Prostate Cancer Index Composite (EPIC)-26 is a validated questionnaire which measures urinary, bowel, sexual, and hormonal symptoms. This study reports trends in self-reported burden in patients with prostate cancer treated with SBRT and reveals convergence of self-reported burden with treatment related side effects obtained from the EPIC-26 questionnaire. Methods All patients ≥70 years old, with localized prostate cancer treated with SBRT ± ADT at Medstar Georgetown University Hospital from 2013 to 2018 and had completed the ELD-14 were eligible for inclusion in this cross-sectional cohort study. Percentage of responses to questions related to disease and ore burden than their non-ADT counterparts. Conclusions This cross-sectional study suggests a minority of patients reported high burden from their clinically localized prostate cancer or from their SBRT treatment. Self-reported burden converged well with lower EPIC scores in multiple domains. Copyright © 2020 Aghdam, Pepin, Carrasquilla, Johnson, Danner, Ayoob, Yung, Lei, Collins, Kumar, Suy, Lynch and Collins.Theoretical and empirical work over the past several decades suggests that oncogenesis and disease progression represents an evolutionary story. Despite this knowledge, current anti-resistance strategies to drugs are often managed through treating cancers as independent biological agents divorced from human activity. Yet once drug resistance to cancer treatment is understood as a product of artificial or anthropogenic rather than unconscious selection, oncologists could improve outcomes for their patients by consulting evolutionary studies of oncology prior to clinical trial and treatment plan design. In the setting of multiple cancer types, for example, a machine learning algorithm can predict the genetic changes known to be related to drug resistance. In this way, a unity between technology and theory might have practical clinical implications-and may pave the way for a new paradigm shift in medicine. Copyright © 2020 Goodman and Ashrafian.Background Radiation-associated osteosarcoma (RAO) is a rare, life-threatening complication from radiation. Many physicians presume RAO has a worse prognosis than sporadic osteosarcoma (SO), although limited objective data exist. We conducted a retrospective study comparing these entities. Methods We identified adults treated at our institution with osteosarcoma (1990-2016) and categorized tumors as SO or RAO based on location within a prior radiation field. We extracted data on demographics, treatment and primary malignancy and examined available tumor samples for MTA-1 and ezrin using immunohistochemistry (IHC). Results Of 159 identified patients, 28 had RAO, diagnosed at a median interval from radiation of 11.5 years (1.5-28 years). Median follow-up was 2.8 years (0.1-19.6 years). Median progression free survival (PFS) and overall survival (OS) were not significantly different in the small population of patients with metastases, SO (n = 20) vs. RAO (n = 6) PFS 10.3 months vs. 4.8 months (p = 0.45) and OS 15.6 months vs. 6.1 months (p = 0.96), respectively. For the larger group with localized disease, median relapse-free survival (RFS) and OS were significantly different, NR vs. 12.2 months (p less then 0.001) and NR vs. 27.6 months (p = 0.001) in SO (n = 111) vs. RAO (n = 22), respectively. On IHC, there were significant differences in distribution of high, intermediate or low MTA-1 (p = 0.015) and ezrin (p = 0.002) between RAO and SO tumors. Conclusions Patients with metastases at diagnosis fared poorly irrespective of prior radiation. RAO patients with localized disease had worse outcomes without detectable differences in therapy rendered or treatment effect in resected specimens. Higher expression of MTA-1 in RAO patients may suggest an underlying difference in tumor biology to explain differences in outcomes. Copyright © 2020 Siontis, McHugh, Roberts, Zhao, Thomas, Owen, Baker, Biermann, Schuetze and Chugh.Concurrent chemoradiotherapy with high-dose cisplatin (100 mg/m2 every 3 weeks) is the preferred regimen with curative intent for patients with unresected locally advanced squamous cell carcinoma of the head and neck (LA SCCHN). This treatment is associated with acute and late toxicities, including myelosuppression, severe nausea/vomiting, irreversible renal failure, hearing loss, and neurotoxicity. Because of cisplatin's safety profile, treatment adherence to high-dose cisplatin can be suboptimal. Patients commonly receive less than the total cumulative target dose of 300 mg/m2 or the minimum recommended dose of 200 mg/m2, which can have a negative impact on locoregional control and survival. Alternatively, cetuximab plus radiotherapy may be most suitable for patients at high risk of non-adherence to high-dose cisplatin. We discuss the baseline characteristics dictating the unsuitability/borderline unsuitability of cisplatin and the available alternative evidence-based treatment regimens for patients with LA SCCHN.0 Commentarii 0 Distribuiri 26 Views 0 previzualizareVă rugăm să vă autentificați pentru a vă dori, partaja și comenta! -
the extant research. Binational interventions to support families that experience forced-separation are needed to mitigate short and long-term adverse mental health outcomes, especially among youth in the U.S., and other unfavorable family and household-level outcomes. Funding to understand the implications of maternal deportation and for longitudinal qualitative and quantitative research on migrant-focused interventions and related outcomes is needed. Copyright © 2020 Ojeda, Magana, Burgos and Vargas-Ojeda.The hypothalamic-pituitary-adrenocortical (HPA) function is crucial for adaptation to stress and recovery of homeostasis. https://www.selleckchem.com/products/cx-5461.html Physiological alteration in the HPA axis has been shown to play a pivotal role in the generation of stress-related disorders. A growing number of studies have begun to identify which variables are possible to predict individual HPA response and associated stress vulnerability. The current study investigated the relationship between working memory and the subsequent magnitude of HPA response to psychosocial stress in a non-clinical population. Working memory was assessed utilizing an n-**** task (2/3-****) in thirty-nine healthy young men, whose electroencephalograms were recorded. The HPA response was measured using the percentage increase in cortisol to an acute psychosocial stress protocol called the Trier Social Stress Test (TSST). Our results show that longer reaction time and smaller amplitude of P2 predict a relatively lower HPA response to stress. Our study provides new insights into how neurocognitive factors can be used to predict HPA response to acute stress. Copyright © 2020 Lin, Wu, Yuan, Sun and Zhang.Current evidence supports the idea that neural plasticity is a potential cause of depression. Abundant studies indicate that CRMP2 has important roles in neural plasticity. Moreover, CRMP2 may contribute to the etiology of depression. However, the regulatory mechanisms underlying the role of CRMP2 remain unclear. DNA methylation alteration is generally acknowledged to be involved in the development of depression. The aim of this study was to explore the relationship between the expression and DNA methylation of CRMP2 in the hippocampus and prefrontal cortex of a rat depression model. Chronic unpredictable mild stress (CUMS) was used to establish a rat depression model, and body weight and behavioral tests were used to evaluate the effects of stress. Real-time PCR and Western blotting were used to test CRMP2 mRNA and protein expression, respectively, in the hippocampus and prefrontal cortex of rats. DNA methylation levels of the CRMP2 promoter were analyzed by bisulfite sequencing PCR (BSP). CUMS caused depresiang, Xiao, Sun, Fu, Yao, Wang and Liu.Psychological therapies, such as CBT, are an important part of the treatment of a range of psychiatric disorders such as depression and anxiety. There is a growing desire to understand the mechanisms by which such therapies effect change so as to improve treatment outcomes. Here we argue that adopting a computational framework may be one such approach. Computational psychiatry aims to provide a theoretical framework for moving between higher-level psychological states (like emotions, decisions and beliefs) to neural circuits, by modeling these constructs mathematically. These models are explicit hypotheses that contain quantifiable variables and parameters derived from each individual's behavior. This approach has two advantages. Firstly, some of the variables described by these models appears to reflect the neural activity of specific brain regions. Secondly, the parameters estimated by these models may offer a unique description of a patient's symptoms which can be used to both tailor therapy and track its effect. In doing so this approach may offer some additional granularity in understanding how psychological therapies, such as CBT, are working. Although this field shows significant promise, we also highlight several of the key hurdles that must first be overcome before clinical translation of computational insights can be realized. Copyright © 2020 Nair, Rutledge and Mason.Background The challenges facing people with chronic tinnitus include finding relief and rebuilding quality of life. However, previous traumatic episodes may influence adjustment and prolong suffering. Recovery implies reducing aggravating reactions and improving social roles, relationships and interests. Self-narratives about living with tinnitus have not yet received the attention they deserve in the research literature. Thus, the main goal of the present study was to illustrate how tinnitus suffering interacts with the participants' unique life histories. Method Four women and one man (ages 52-58) took part in the study after consulting a special hearing clinic for annoying tinnitus. Criteria for inclusion were that tinnitus was regarded as a problem with negative consequences for quality of life. The participants should be willing to share how the experience of tinnitus suffering interacts with their previous life story. Narrative methodology was employed in order to achieve the goals of the study. We usepatient's general health status, an alteration of progressive and stable narratives is likely to occur during the lifespan. A progressive narrative shows similarities to the core construct of the salutogenesis model of health promotion (1). In conclusion, a narrative approach in tinnitus rehabilitation can be health promoting by offering the patient the opportunity to engage in storytelling, which in turn can increase comprehensibility and a sense of coherence. Copyright © 2020 Erlandsson, Lundin and Dauman.Background The working conditions at universities and hospitals are reported to be stressful. Several national and international studies have investigated occupational stress in hospitals. However, scientific studies at colleges and universities addressing psycho-social stress factors and their potential consequences are scarce. In this context, the consequences and correlations of the factor of work-family conflict, in particular, are currently uninvestigated. The aim of our study was to assess data on psychosocial stress in the context of the compatibility of work and family. Methods Data were gathered through a cross-sectional-study, N = 844 (55% female, 41% male), on university staff (42.3% scientists, 14.3% physicians, 19.4% employees in administration, and 19.3% employees in service). Participants filled out questionnaires to provide their personal data and details of their work and private life conditions. For this purpose, we used the Work-Family and Family-Work Conflict Scales, Effort-Reward Inventory and Overcommitment Scale (ERI, OC), Patient Health Questionnaire (PHQ-4), short-form Maslach Burnout Inventory (MBI), and questions on their subjective health.
the extant research. Binational interventions to support families that experience forced-separation are needed to mitigate short and long-term adverse mental health outcomes, especially among youth in the U.S., and other unfavorable family and household-level outcomes. Funding to understand the implications of maternal deportation and for longitudinal qualitative and quantitative research on migrant-focused interventions and related outcomes is needed. Copyright © 2020 Ojeda, Magana, Burgos and Vargas-Ojeda.The hypothalamic-pituitary-adrenocortical (HPA) function is crucial for adaptation to stress and recovery of homeostasis. https://www.selleckchem.com/products/cx-5461.html Physiological alteration in the HPA axis has been shown to play a pivotal role in the generation of stress-related disorders. A growing number of studies have begun to identify which variables are possible to predict individual HPA response and associated stress vulnerability. The current study investigated the relationship between working memory and the subsequent magnitude of HPA response to psychosocial stress in a non-clinical population. Working memory was assessed utilizing an n-back task (2/3-back) in thirty-nine healthy young men, whose electroencephalograms were recorded. The HPA response was measured using the percentage increase in cortisol to an acute psychosocial stress protocol called the Trier Social Stress Test (TSST). Our results show that longer reaction time and smaller amplitude of P2 predict a relatively lower HPA response to stress. Our study provides new insights into how neurocognitive factors can be used to predict HPA response to acute stress. Copyright © 2020 Lin, Wu, Yuan, Sun and Zhang.Current evidence supports the idea that neural plasticity is a potential cause of depression. Abundant studies indicate that CRMP2 has important roles in neural plasticity. Moreover, CRMP2 may contribute to the etiology of depression. However, the regulatory mechanisms underlying the role of CRMP2 remain unclear. DNA methylation alteration is generally acknowledged to be involved in the development of depression. The aim of this study was to explore the relationship between the expression and DNA methylation of CRMP2 in the hippocampus and prefrontal cortex of a rat depression model. Chronic unpredictable mild stress (CUMS) was used to establish a rat depression model, and body weight and behavioral tests were used to evaluate the effects of stress. Real-time PCR and Western blotting were used to test CRMP2 mRNA and protein expression, respectively, in the hippocampus and prefrontal cortex of rats. DNA methylation levels of the CRMP2 promoter were analyzed by bisulfite sequencing PCR (BSP). CUMS caused depresiang, Xiao, Sun, Fu, Yao, Wang and Liu.Psychological therapies, such as CBT, are an important part of the treatment of a range of psychiatric disorders such as depression and anxiety. There is a growing desire to understand the mechanisms by which such therapies effect change so as to improve treatment outcomes. Here we argue that adopting a computational framework may be one such approach. Computational psychiatry aims to provide a theoretical framework for moving between higher-level psychological states (like emotions, decisions and beliefs) to neural circuits, by modeling these constructs mathematically. These models are explicit hypotheses that contain quantifiable variables and parameters derived from each individual's behavior. This approach has two advantages. Firstly, some of the variables described by these models appears to reflect the neural activity of specific brain regions. Secondly, the parameters estimated by these models may offer a unique description of a patient's symptoms which can be used to both tailor therapy and track its effect. In doing so this approach may offer some additional granularity in understanding how psychological therapies, such as CBT, are working. Although this field shows significant promise, we also highlight several of the key hurdles that must first be overcome before clinical translation of computational insights can be realized. Copyright © 2020 Nair, Rutledge and Mason.Background The challenges facing people with chronic tinnitus include finding relief and rebuilding quality of life. However, previous traumatic episodes may influence adjustment and prolong suffering. Recovery implies reducing aggravating reactions and improving social roles, relationships and interests. Self-narratives about living with tinnitus have not yet received the attention they deserve in the research literature. Thus, the main goal of the present study was to illustrate how tinnitus suffering interacts with the participants' unique life histories. Method Four women and one man (ages 52-58) took part in the study after consulting a special hearing clinic for annoying tinnitus. Criteria for inclusion were that tinnitus was regarded as a problem with negative consequences for quality of life. The participants should be willing to share how the experience of tinnitus suffering interacts with their previous life story. Narrative methodology was employed in order to achieve the goals of the study. We usepatient's general health status, an alteration of progressive and stable narratives is likely to occur during the lifespan. A progressive narrative shows similarities to the core construct of the salutogenesis model of health promotion (1). In conclusion, a narrative approach in tinnitus rehabilitation can be health promoting by offering the patient the opportunity to engage in storytelling, which in turn can increase comprehensibility and a sense of coherence. Copyright © 2020 Erlandsson, Lundin and Dauman.Background The working conditions at universities and hospitals are reported to be stressful. Several national and international studies have investigated occupational stress in hospitals. However, scientific studies at colleges and universities addressing psycho-social stress factors and their potential consequences are scarce. In this context, the consequences and correlations of the factor of work-family conflict, in particular, are currently uninvestigated. The aim of our study was to assess data on psychosocial stress in the context of the compatibility of work and family. Methods Data were gathered through a cross-sectional-study, N = 844 (55% female, 41% male), on university staff (42.3% scientists, 14.3% physicians, 19.4% employees in administration, and 19.3% employees in service). Participants filled out questionnaires to provide their personal data and details of their work and private life conditions. For this purpose, we used the Work-Family and Family-Work Conflict Scales, Effort-Reward Inventory and Overcommitment Scale (ERI, OC), Patient Health Questionnaire (PHQ-4), short-form Maslach Burnout Inventory (MBI), and questions on their subjective health.0 Commentarii 0 Distribuiri 26 Views 0 previzualizare -
In addition, CBD triggered a concentration-dependent increase of the autophagy marker LC3A/B-II. Both CBD-induced LC3A/B-II levels and caspase-3 cleavage were reduced by NAC. The inhibition of autophagy by bafilomycin A1 led to apoptosis induction by 6 µM CBD and a further increase of the proapoptotic effect of 10 µM CBD. On the other hand, the inhibition of HO-1 activity with tin protoporphyrin IX (SnPPIX) or knockdown of HO-1 expression by Nrf2 siRNA was associated with a decrease in CBD-mediated autophagy and apoptosis. In summary, our data show for the first time ROS-mediated HO-1 expression in endothelial cells as a mechanism by which CBD mediates protective autophagy, which at higher CBD concentrations, however, can no longer prevent cell death inducing apoptosis.Hyperglycaemia has a toxic effect on blood vessels and promotes coronary artery disease. It is unclear whether the dysfunction caused by hyperglycaemia is blood vessel specific and whether the dysfunction is exacerbated following an atherogenic diet. Abdominal aorta, iliac, and mesenteric arteries were dissected from New Zealand White rabbits following either a 4-week normal or atherogenic diet (n = 6-12 per group). The arteries were incubated ex vivo in control or high glucose solution (20 mM or 40 mM) for 2 h. Isometric tension myography was used to determine endothelial-dependent vasodilation. The atherogenic diet reduced relaxation as measured by area under the curve (AUC) by 25% (p less then 0.05), 17% (p = 0.06) and 40% (p = 0.07) in the aorta, iliac, and mesenteric arteries, respectively. In the aorta from the atherogenic diet fed rabbits, the 20 mM glucose altered EC50 (p less then 0.05). Incubation of the iliac artery from atherogenic diet fed rabbits in 40 mM glucose altered EC50 (p less then 0.05). No dysfunction occurred in the mesentery with high glucose incubation following either the normal or atherogenic diet. High glucose induced endothelial dysfunction appears to be blood vessel specific and the aorta may be the optimal artery to study potential therapeutic treatments of hyperglycaemia induced endothelial dysfunction.At present, there are no specific indicators and requirements for the low-temperature crack resistance of emulsified asphalt cold recycled mixture (CRME) in the Chinese road mixture specifications. In order to expand the application of this technology in the asphalt surface layer in cold areas, this paper studied the influence of 10 influencing factors on the low-temperature anti-cracking performance of CRME through the semicircular bending test (SCB) with fracture energy as the evaluation index. The research results show that the fracture energy index of the SCB test can be used to evaluate the low temperature crack resistance of CRME. After 10 kinds of influencing factors were analyzed, it was found that the biggest factor affecting the low-temperature cracking resistance of the mixture was the recycling agent, which had an effect on the fracture energy index of over 60%. Followed by cement, fiber and compaction work, the degree of influence exceeded 30%. Finally, combined with engineering application experience, some specific measures to improve the low-temperature anti-cracking performance of CRME were proposed.The support vector machine (SVM) combined with the genetic algorithm (GA) has been utilized for the fault diagnosis of transformers since its high accuracy. In addition to the fault diagnosis, the condition assessment of transformer oil-immersed insulation conveys the crucial engineering significance as well. However, the approaches for getting GA-SVM used to the moisture prediction of oil-immersed insulation have been rarely reported. In view of this issue, this paper pioneers the application of GA-SVM and frequency domain spectroscopy (FDS) to realize the moisture prediction of transformer oil-immersed insulation. In the present work, a method of constructing a GA-SVM multi-classifier for moisture diagnosis based on the fitting analysis model is firstly reported. Then, the feasibility and reliability of the reported method are proved by employing the laboratory and field test experiments. The experimental results indicate that the reported prediction model might be serviced as a potential tool for the moisture prediction of transformer oil-immersed polymer insulation.Leisure-time physical activity (LTPA) has been well documented as having substantial health benefits. The 2014 Chinese Fitness Survey Report stated that a lack of physical activity (PA) spaces is the most important non-human factor, leading to 10% of leisure-time physical inactivity in people aged 20 and above. We investigated the provision of sports venues in China and discussed the development of sports venues and national fitness policies in the context of promoting LTPA and public health. https://www.selleckchem.com/products/Dasatinib.html We analyzed information from China's most recent sport venue census, the Sixth National Sports Venues Census, conducted in 2013. The number of sports venues increased between 2000 and 2013, with an inflection point around the year 2008. At the end of 2013, there were 12.45 venues for every 10,000 residents, and the per capita area was 1.46 m2. However, numbers were still small compared with the United States and Japan. The percentages of full-time access, part-time access and membership venues were 51.5%, 14.3% and 34.2% respectively. Only half of sports venues were fully open to the public, meaning that the realized number and area per capita could be even lower. A lack of sports venues forces people who want to engage in PA to occupy other urban spaces that are not planned and designed for PA. Urban parks had 119,750 fitness station facilities (3.32% of the total), and 2366 urban fitness trails (19.24%), with a combined length of 6450 km (32.91%). On average, urban and rural areas had 13.17 and 10.80 venues per 10,000 persons, and 1.83 m2 and 0.97 m2 per capita. The urban-rural gap in sports venues exactly embodies some aspects of the "urban-rural dual structure" in China's society. Measures to promote PA should focus on new and existing sports venues. In the policy making process, Chinese governments need to pay attention to the potential impact of related, external factors such as the gap between the urban and the rural and the potential advantage of indoor venues against summer heat and air pollution.
In addition, CBD triggered a concentration-dependent increase of the autophagy marker LC3A/B-II. Both CBD-induced LC3A/B-II levels and caspase-3 cleavage were reduced by NAC. The inhibition of autophagy by bafilomycin A1 led to apoptosis induction by 6 µM CBD and a further increase of the proapoptotic effect of 10 µM CBD. On the other hand, the inhibition of HO-1 activity with tin protoporphyrin IX (SnPPIX) or knockdown of HO-1 expression by Nrf2 siRNA was associated with a decrease in CBD-mediated autophagy and apoptosis. In summary, our data show for the first time ROS-mediated HO-1 expression in endothelial cells as a mechanism by which CBD mediates protective autophagy, which at higher CBD concentrations, however, can no longer prevent cell death inducing apoptosis.Hyperglycaemia has a toxic effect on blood vessels and promotes coronary artery disease. It is unclear whether the dysfunction caused by hyperglycaemia is blood vessel specific and whether the dysfunction is exacerbated following an atherogenic diet. Abdominal aorta, iliac, and mesenteric arteries were dissected from New Zealand White rabbits following either a 4-week normal or atherogenic diet (n = 6-12 per group). The arteries were incubated ex vivo in control or high glucose solution (20 mM or 40 mM) for 2 h. Isometric tension myography was used to determine endothelial-dependent vasodilation. The atherogenic diet reduced relaxation as measured by area under the curve (AUC) by 25% (p less then 0.05), 17% (p = 0.06) and 40% (p = 0.07) in the aorta, iliac, and mesenteric arteries, respectively. In the aorta from the atherogenic diet fed rabbits, the 20 mM glucose altered EC50 (p less then 0.05). Incubation of the iliac artery from atherogenic diet fed rabbits in 40 mM glucose altered EC50 (p less then 0.05). No dysfunction occurred in the mesentery with high glucose incubation following either the normal or atherogenic diet. High glucose induced endothelial dysfunction appears to be blood vessel specific and the aorta may be the optimal artery to study potential therapeutic treatments of hyperglycaemia induced endothelial dysfunction.At present, there are no specific indicators and requirements for the low-temperature crack resistance of emulsified asphalt cold recycled mixture (CRME) in the Chinese road mixture specifications. In order to expand the application of this technology in the asphalt surface layer in cold areas, this paper studied the influence of 10 influencing factors on the low-temperature anti-cracking performance of CRME through the semicircular bending test (SCB) with fracture energy as the evaluation index. The research results show that the fracture energy index of the SCB test can be used to evaluate the low temperature crack resistance of CRME. After 10 kinds of influencing factors were analyzed, it was found that the biggest factor affecting the low-temperature cracking resistance of the mixture was the recycling agent, which had an effect on the fracture energy index of over 60%. Followed by cement, fiber and compaction work, the degree of influence exceeded 30%. Finally, combined with engineering application experience, some specific measures to improve the low-temperature anti-cracking performance of CRME were proposed.The support vector machine (SVM) combined with the genetic algorithm (GA) has been utilized for the fault diagnosis of transformers since its high accuracy. In addition to the fault diagnosis, the condition assessment of transformer oil-immersed insulation conveys the crucial engineering significance as well. However, the approaches for getting GA-SVM used to the moisture prediction of oil-immersed insulation have been rarely reported. In view of this issue, this paper pioneers the application of GA-SVM and frequency domain spectroscopy (FDS) to realize the moisture prediction of transformer oil-immersed insulation. In the present work, a method of constructing a GA-SVM multi-classifier for moisture diagnosis based on the fitting analysis model is firstly reported. Then, the feasibility and reliability of the reported method are proved by employing the laboratory and field test experiments. The experimental results indicate that the reported prediction model might be serviced as a potential tool for the moisture prediction of transformer oil-immersed polymer insulation.Leisure-time physical activity (LTPA) has been well documented as having substantial health benefits. The 2014 Chinese Fitness Survey Report stated that a lack of physical activity (PA) spaces is the most important non-human factor, leading to 10% of leisure-time physical inactivity in people aged 20 and above. We investigated the provision of sports venues in China and discussed the development of sports venues and national fitness policies in the context of promoting LTPA and public health. https://www.selleckchem.com/products/Dasatinib.html We analyzed information from China's most recent sport venue census, the Sixth National Sports Venues Census, conducted in 2013. The number of sports venues increased between 2000 and 2013, with an inflection point around the year 2008. At the end of 2013, there were 12.45 venues for every 10,000 residents, and the per capita area was 1.46 m2. However, numbers were still small compared with the United States and Japan. The percentages of full-time access, part-time access and membership venues were 51.5%, 14.3% and 34.2% respectively. Only half of sports venues were fully open to the public, meaning that the realized number and area per capita could be even lower. A lack of sports venues forces people who want to engage in PA to occupy other urban spaces that are not planned and designed for PA. Urban parks had 119,750 fitness station facilities (3.32% of the total), and 2366 urban fitness trails (19.24%), with a combined length of 6450 km (32.91%). On average, urban and rural areas had 13.17 and 10.80 venues per 10,000 persons, and 1.83 m2 and 0.97 m2 per capita. The urban-rural gap in sports venues exactly embodies some aspects of the "urban-rural dual structure" in China's society. Measures to promote PA should focus on new and existing sports venues. In the policy making process, Chinese governments need to pay attention to the potential impact of related, external factors such as the gap between the urban and the rural and the potential advantage of indoor venues against summer heat and air pollution.0 Commentarii 0 Distribuiri 37 Views 0 previzualizare -
Poly (ADP-ribose) polymerase (PARP) inhibitors have transformed the therapeutic management of solid tumors, particularly ovarian cancer. Initially studied in **** deficient tumors, the Food and Drug Administration (FDA) indications have expanded to include other homologous recombination deficient tumors as well as biomarker-wildtype tumors. They have also gained momentum not only as a treatment strategy, but as a maintenance strategy as well. While PARP inhibitors were initially evaluated in the recurrent setting, they have now moved to frontline therapy. This review will discuss the current FDA indications of the clinically available PARP inhibitors for treatment and maintenance therapies. We will then review the recently completed and ongoing clinical trials which may inform future clinical approvals.Background Bioflavonoids, secondary metabolites of plants, are beneficial in regulating human physiological mechanisms. Bioflavonoids majorly exist in the dietary intake of fruits, vegetables, legumes, pulses, etc. In addition to their cardio-protective and neuroprotective activities, they also possess prominent pharmacological effects including anti-oxidant, anti-inflammatory, anti-proliferative and anti-thrombogenic actions. However, therapeutic efficacy of the bioflavonoids is hampered by their lipophilic nature, low solubility and variable bioavailability which catch the eyes of formulation scientists. Purpose Nanocrystal formulations were studied for many bioflavonoids, although enough attention has not been given to their commercial exploitation, unlike drug nanocrystals. Nanocrystals of bioflavonoid can be prepared by top-down technique, bottom-up technique or combination of both. This review primarily focuses on nanocrystal technology for bioflavonoids, methods of production, critical process parameters, in vitro and in vivo studies conducted to evaluate the efficiency. Method The detailed literature survey was systematically carried out using different electronic databases. It includes Scopus, Web of Science, Medline via PubMed, EMBASE, and Google Scholar. Also up-to-date patent search was conducted to understand the prior art and available intellectual properties. Result and conclusion It was observed that several formulation and process parameters have an impact on flavonoids nanocrystals and their therapeutic efficacy. Also, clinical studies of flavonoid nanocrystals are barely done so far and thus, substantial safety and efficacy data is necessary for its commercial applications. Nevertheless, nanocrystals can be explored as a promising technology platform for improving overall therapeutic performance of flavonoids in future.Uveal melanoma (UM) is a type of intraocular tumor with a propensity to disseminate to the liver. Despite the identification of the early driver mutations during the development of the pathology, the process of UM metastasis is still not fully comprehended. A better understanding of the genetic, molecular, and environmental factors participating to its spread and metastatic outgrowth could provide additional approaches for UM treatment. In this review, we will discuss the advances made towards the understanding of the pathogenesis of metastatic UM, summarize the current and prospective treatments, and introduce some of the ongoing research in this field.Chemotherapy induced immune-suppression is a common, but potential detrimental, adverse reaction in patients undergoing treatment for cancer, and strategies with capacity to boost the immune cell populations are needed. Physical exercise training is a potent regulator of immune cell viability and function and may serve as a viable, non-pharmacological prophylactic strategy in addition to the current pharmacological management by e.g. granulocyte colony-stimulating factor. Here, we review the mechanistic evidence linking exercise training to hematopoietic function and subsequent possible amelioration of chemotherapy-related neutropenia. Firstly, we briefly describe neutrophil regulation and management of neutropenia in cancer patients. Secondly, we summarize the effect of acute and chronic exercise training on neutrophils and their progenitors, and finally we outline the current clinical evidence of exercise interventions in ongoing anti-cancer treatment in regard to neutropenia incidence, treatment tolerance and related outcomes.Enhanced recovery programs (ERPs) aim to reduce psychological and physiological stress related to surgery, and minimize opioid use. This article describes the tenets of enhanced recovery, the guidelines for ERP in lung surgery, and the University of Virginia experience with developing and implementing a program. The impact of these strategies on short-term patient outcomes and potential long-term benefits including influence on lung cancer-specific outcomes are reviewed. The opioid crisis is of utmost importance; this article will explore how ERPs may be a mitigating factor.Background 'Living in the moment' is an essential part of dignity-conserving practice in end-of-life care settings. Although living in the moment is important for care at the end of life, from the perspective of both the person and their family, there is no clear conceptual understanding of what it represents. Objective To explore the concept of 'living in the moment' in the context of dignity-conserving care at the end of life. Design A concept analysis. Data sources The databases of Medline, CinAHL, PubMed, Web of Science, PsycINFO, SocINDEX and Cochrane were searched for studies published between 1941 and 2019, and searches of dictionaries and grey literature, as well as hand-searching were conducted, to yield qualitative, mixed methods and systematic reviews published in English, related to the term 'living in the moment'. Method The methods of Walker and Avant were used to identify antecedents, attributes and consequences of the concept of 'living in the moment'. Results The literature review generated a total of 37 papers for this concept analysis. https://www.selleckchem.com/products/mz-1.html The attributes identified were (1) simple pleasure, (2) prioritising relationships, (3) living each day to the fullest, (4) maintaining normality, and (5) not worrying about the future. The antecedents were (1) awareness of dying, (2) living with life-threatening illness, (3) positive individual growth, and (4) living with an uncertain future. The consequences were (1) a good quality of life, (2) preserving dignity, and (3) coping with the uncertainty of life. Conclusions A universal definition and conceptual model of the main concept, including theoretical relationships between its antecedents, attributes and consequences, was developed. The definition and proposed conceptual model can allow instruments to be developed that measure the effects, existence or attributes of the concept, and identify a theoretical model, and can also lead to new perspectives and strategies for implementation by nurses to improve dignified person-centred care at the end of life.
Poly (ADP-ribose) polymerase (PARP) inhibitors have transformed the therapeutic management of solid tumors, particularly ovarian cancer. Initially studied in BRCA deficient tumors, the Food and Drug Administration (FDA) indications have expanded to include other homologous recombination deficient tumors as well as biomarker-wildtype tumors. They have also gained momentum not only as a treatment strategy, but as a maintenance strategy as well. While PARP inhibitors were initially evaluated in the recurrent setting, they have now moved to frontline therapy. This review will discuss the current FDA indications of the clinically available PARP inhibitors for treatment and maintenance therapies. We will then review the recently completed and ongoing clinical trials which may inform future clinical approvals.Background Bioflavonoids, secondary metabolites of plants, are beneficial in regulating human physiological mechanisms. Bioflavonoids majorly exist in the dietary intake of fruits, vegetables, legumes, pulses, etc. In addition to their cardio-protective and neuroprotective activities, they also possess prominent pharmacological effects including anti-oxidant, anti-inflammatory, anti-proliferative and anti-thrombogenic actions. However, therapeutic efficacy of the bioflavonoids is hampered by their lipophilic nature, low solubility and variable bioavailability which catch the eyes of formulation scientists. Purpose Nanocrystal formulations were studied for many bioflavonoids, although enough attention has not been given to their commercial exploitation, unlike drug nanocrystals. Nanocrystals of bioflavonoid can be prepared by top-down technique, bottom-up technique or combination of both. This review primarily focuses on nanocrystal technology for bioflavonoids, methods of production, critical process parameters, in vitro and in vivo studies conducted to evaluate the efficiency. Method The detailed literature survey was systematically carried out using different electronic databases. It includes Scopus, Web of Science, Medline via PubMed, EMBASE, and Google Scholar. Also up-to-date patent search was conducted to understand the prior art and available intellectual properties. Result and conclusion It was observed that several formulation and process parameters have an impact on flavonoids nanocrystals and their therapeutic efficacy. Also, clinical studies of flavonoid nanocrystals are barely done so far and thus, substantial safety and efficacy data is necessary for its commercial applications. Nevertheless, nanocrystals can be explored as a promising technology platform for improving overall therapeutic performance of flavonoids in future.Uveal melanoma (UM) is a type of intraocular tumor with a propensity to disseminate to the liver. Despite the identification of the early driver mutations during the development of the pathology, the process of UM metastasis is still not fully comprehended. A better understanding of the genetic, molecular, and environmental factors participating to its spread and metastatic outgrowth could provide additional approaches for UM treatment. In this review, we will discuss the advances made towards the understanding of the pathogenesis of metastatic UM, summarize the current and prospective treatments, and introduce some of the ongoing research in this field.Chemotherapy induced immune-suppression is a common, but potential detrimental, adverse reaction in patients undergoing treatment for cancer, and strategies with capacity to boost the immune cell populations are needed. Physical exercise training is a potent regulator of immune cell viability and function and may serve as a viable, non-pharmacological prophylactic strategy in addition to the current pharmacological management by e.g. granulocyte colony-stimulating factor. Here, we review the mechanistic evidence linking exercise training to hematopoietic function and subsequent possible amelioration of chemotherapy-related neutropenia. Firstly, we briefly describe neutrophil regulation and management of neutropenia in cancer patients. Secondly, we summarize the effect of acute and chronic exercise training on neutrophils and their progenitors, and finally we outline the current clinical evidence of exercise interventions in ongoing anti-cancer treatment in regard to neutropenia incidence, treatment tolerance and related outcomes.Enhanced recovery programs (ERPs) aim to reduce psychological and physiological stress related to surgery, and minimize opioid use. This article describes the tenets of enhanced recovery, the guidelines for ERP in lung surgery, and the University of Virginia experience with developing and implementing a program. The impact of these strategies on short-term patient outcomes and potential long-term benefits including influence on lung cancer-specific outcomes are reviewed. The opioid crisis is of utmost importance; this article will explore how ERPs may be a mitigating factor.Background 'Living in the moment' is an essential part of dignity-conserving practice in end-of-life care settings. Although living in the moment is important for care at the end of life, from the perspective of both the person and their family, there is no clear conceptual understanding of what it represents. Objective To explore the concept of 'living in the moment' in the context of dignity-conserving care at the end of life. Design A concept analysis. Data sources The databases of Medline, CinAHL, PubMed, Web of Science, PsycINFO, SocINDEX and Cochrane were searched for studies published between 1941 and 2019, and searches of dictionaries and grey literature, as well as hand-searching were conducted, to yield qualitative, mixed methods and systematic reviews published in English, related to the term 'living in the moment'. Method The methods of Walker and Avant were used to identify antecedents, attributes and consequences of the concept of 'living in the moment'. Results The literature review generated a total of 37 papers for this concept analysis. https://www.selleckchem.com/products/mz-1.html The attributes identified were (1) simple pleasure, (2) prioritising relationships, (3) living each day to the fullest, (4) maintaining normality, and (5) not worrying about the future. The antecedents were (1) awareness of dying, (2) living with life-threatening illness, (3) positive individual growth, and (4) living with an uncertain future. The consequences were (1) a good quality of life, (2) preserving dignity, and (3) coping with the uncertainty of life. Conclusions A universal definition and conceptual model of the main concept, including theoretical relationships between its antecedents, attributes and consequences, was developed. The definition and proposed conceptual model can allow instruments to be developed that measure the effects, existence or attributes of the concept, and identify a theoretical model, and can also lead to new perspectives and strategies for implementation by nurses to improve dignified person-centred care at the end of life.0 Commentarii 0 Distribuiri 26 Views 0 previzualizare -
The fascial sheath of the sternocleidomastoid muscle is easily isolated from the carotid sheath in all specimens. All procedures were successfully completed. The space between the fascial sheath of the sternocleidomastoid muscle and the carotid sheath can be accessed in all patients. Carotid sheath contracture was identified in 1 patient and divided successfully. The average follow-up period was 19 months (range 5 to 43 months). No postoperative lateral band was noted in the neck in any of the patients. Satisfaction regarding cosmetic and functional outcomes was considered excellent in 13 patients, good in 7 patients, and fair in 2 patients.The fascial sheath of the sternocleidomastoid muscle is easily isolated from the carotid sheath. This anatomical feature is the basis of division of the sternocleidomastoid muscle and can improve the safety and effectiveness of surgical treatment for CMT in patients older than 6 years old.BACKGROUND A traditional Chinese medicine classic herbal formula named Xiaoqinglong decoction (XQLD) is widely used in China for acute exacerbation of chronic obstructive pulmonary disease (AECOPD). The efficacy and safety of XQLD for AECOPD was evaluated in this systematic review. METHODS Five databases, including the Cochrane Library, PubMed, China National Knowledge Infrastructure, Wanfang database, and Chinese Science and Technology Periodical Database were searched up to October 5, 2018 for randomized control trials in treating AECOPD with XQLD. RESULT Thirty-eight trials were identified. Compared with conventional therapy (CT), XQLD plus CT significantly improve the total clinical efficacy rate (Risk Ratio [RR] = 1.22, 95% confidence interval [CI] = 1.18-1.26, P less then .00001). Forced expiratory volume in the first second (FEV1) (mean difference [MD] = 0.37, 95% CI = 0.27-0.46; P less then .00001), FEV1%pre (MD = 4.52, 95% CI = 2.42-6.62; P less then .00001), FEV1/forced vital capacity (MD = 5. less then .00001), Interferon (INF)-γ (MD = 18.03, 95% CI = 13.22-22.84; P less then .00001), and C-reactive protein (MD = -3.93, 95% CI = -5.97 to -1.89; P = .0002). For adverse events, there were no difference between XILD plus CT and CT. CONCLUSION XQLD plus CT was more effective than CT alone for treating chronic obstructive pulmonary disease. Further higher quality trials are needed. The safety of XQLD remained uncertain.Findings on the association between cotton dust exposure and lung cancer risk in epidemiologic studies have been inconsistent. Therefore, we conducted a meta-analysis of data from observational studies to quantify this association.PubMed, EMBASE, and the Cochrane library databases were searched for observational studies with data on cotton dust exposure and lung cancer risk. Studies that reported adjusted relative risks (RRs) with 95% confidence intervals (CIs) of lung cancer associated with cotton dust exposure were included. Subgroup analyses were conducted according to key characteristics.Fifteen studies involving a total of 73,812 individuals were included in the meta-analysis. Combining estimates from all the 15 observational studies, cotton dust exposure was associated with a decreased risk of lung cancer (combined RR, 0.78; 95% CI, 0.66-0.91; P = .002). Pooled estimates of multivariate RRs by gender were 0.71 (95% CI, 0.58-0.88; P = .001) among males, based on 7 studies, and 0.77 (95% CI, 0.67-0.89; P less then .001) among females, based on 9 studies. Further analyses examining the influence of a single study on the results by omitting a study at each turn yielded a range of RR from 0.74 to 0.82.Our meta-analysis indicates that cotton dust exposure is associated with a decreased risk of lung cancer.Breast cancer is one of the most common malignancies in women worldwide. Many studies have shown that tumor microenvironment cells, immune cells, and stromal cell infiltration have an important impact on prognosis, so it is important to identify biomarkers for achieving better treatment and prognosis.To better understand the relationship between immune and stromal cell-related genes and prognosis, we screened patients with breast cancer in The Cancer Genome Atlas (TCGA) database and divided them into high and low groups based on immune/stromal scores. We next identified differentially expressed immune-related genes that are significantly associated with the prognosis of patients with breast cancer for functional enrichment analysis and protein-protein interaction networks, respectively. Finally, we selected a separate breast cancer cohort in gene expression synthesis (GEO) for validation.Both immune scores and stromal scores are meaningful in the correlation of subtype classification. Disease-free survival of cases with the high score group of immune scores is statistically longer than the cases in the low score group. Differentially expressed immune-related genes extracted from the comparison can effectively evaluate the prognosis of patients with breast cancer and these genes are primarily involved in immune responses, extracellular matrix, and chemokine activity. At last, we obtained a series of verified tumor immune-related genes that predict the prognosis of patients with breast cancer.Combining the Estimation of Stromal and Immune Cells in Malignant Tumor Tissues using Expression database and the TCGA database to extract the list of tumor microenvironment related genes which may help to outline the prognosis of patients with breast cancer. Some previously overlooked genes have the potential to become additional biomarkers for breast cancer. Further research on these genes can reveal a new understanding of the potential relationship between tumor microenvironment and breast cancer prognosis.The self-expanding metallic stent (SEMS) has been comprehensively investigated as a bridge to surgery. SEMS enables the control of acute colonic obstruction. https://www.selleckchem.com/products/Bortezomib.html However, comparison between SEMS and diverting colostomy as another bridge procedure was still challenging issue. Thus, the aim of this study was to compare these 2 procedures.In this retrospective cohort study, patients who received diverting colostomy and SEMS for acute left colonic obstruction between February 2016 and August 2018 were included. They were classified into the colostomy group (n = 27), including 5 patients who had SEMS failure previously, and the SEMS group (n = 23). The clinicopathologic parameters, pathologic results, and short-term outcomes were compared.No significant differences were found in clinicopathologic characteristics and complication rates between the 2 groups. After the bridge procedures, the SEMS group showed a higher rate of laparoscopic colonic resection than the colostomy group (100% vs 76%, P = .023). The colostomy group showed a higher rate of rectal cancer (24.
The fascial sheath of the sternocleidomastoid muscle is easily isolated from the carotid sheath in all specimens. All procedures were successfully completed. The space between the fascial sheath of the sternocleidomastoid muscle and the carotid sheath can be accessed in all patients. Carotid sheath contracture was identified in 1 patient and divided successfully. The average follow-up period was 19 months (range 5 to 43 months). No postoperative lateral band was noted in the neck in any of the patients. Satisfaction regarding cosmetic and functional outcomes was considered excellent in 13 patients, good in 7 patients, and fair in 2 patients.The fascial sheath of the sternocleidomastoid muscle is easily isolated from the carotid sheath. This anatomical feature is the basis of division of the sternocleidomastoid muscle and can improve the safety and effectiveness of surgical treatment for CMT in patients older than 6 years old.BACKGROUND A traditional Chinese medicine classic herbal formula named Xiaoqinglong decoction (XQLD) is widely used in China for acute exacerbation of chronic obstructive pulmonary disease (AECOPD). The efficacy and safety of XQLD for AECOPD was evaluated in this systematic review. METHODS Five databases, including the Cochrane Library, PubMed, China National Knowledge Infrastructure, Wanfang database, and Chinese Science and Technology Periodical Database were searched up to October 5, 2018 for randomized control trials in treating AECOPD with XQLD. RESULT Thirty-eight trials were identified. Compared with conventional therapy (CT), XQLD plus CT significantly improve the total clinical efficacy rate (Risk Ratio [RR] = 1.22, 95% confidence interval [CI] = 1.18-1.26, P less then .00001). Forced expiratory volume in the first second (FEV1) (mean difference [MD] = 0.37, 95% CI = 0.27-0.46; P less then .00001), FEV1%pre (MD = 4.52, 95% CI = 2.42-6.62; P less then .00001), FEV1/forced vital capacity (MD = 5. less then .00001), Interferon (INF)-γ (MD = 18.03, 95% CI = 13.22-22.84; P less then .00001), and C-reactive protein (MD = -3.93, 95% CI = -5.97 to -1.89; P = .0002). For adverse events, there were no difference between XILD plus CT and CT. CONCLUSION XQLD plus CT was more effective than CT alone for treating chronic obstructive pulmonary disease. Further higher quality trials are needed. The safety of XQLD remained uncertain.Findings on the association between cotton dust exposure and lung cancer risk in epidemiologic studies have been inconsistent. Therefore, we conducted a meta-analysis of data from observational studies to quantify this association.PubMed, EMBASE, and the Cochrane library databases were searched for observational studies with data on cotton dust exposure and lung cancer risk. Studies that reported adjusted relative risks (RRs) with 95% confidence intervals (CIs) of lung cancer associated with cotton dust exposure were included. Subgroup analyses were conducted according to key characteristics.Fifteen studies involving a total of 73,812 individuals were included in the meta-analysis. Combining estimates from all the 15 observational studies, cotton dust exposure was associated with a decreased risk of lung cancer (combined RR, 0.78; 95% CI, 0.66-0.91; P = .002). Pooled estimates of multivariate RRs by gender were 0.71 (95% CI, 0.58-0.88; P = .001) among males, based on 7 studies, and 0.77 (95% CI, 0.67-0.89; P less then .001) among females, based on 9 studies. Further analyses examining the influence of a single study on the results by omitting a study at each turn yielded a range of RR from 0.74 to 0.82.Our meta-analysis indicates that cotton dust exposure is associated with a decreased risk of lung cancer.Breast cancer is one of the most common malignancies in women worldwide. Many studies have shown that tumor microenvironment cells, immune cells, and stromal cell infiltration have an important impact on prognosis, so it is important to identify biomarkers for achieving better treatment and prognosis.To better understand the relationship between immune and stromal cell-related genes and prognosis, we screened patients with breast cancer in The Cancer Genome Atlas (TCGA) database and divided them into high and low groups based on immune/stromal scores. We next identified differentially expressed immune-related genes that are significantly associated with the prognosis of patients with breast cancer for functional enrichment analysis and protein-protein interaction networks, respectively. Finally, we selected a separate breast cancer cohort in gene expression synthesis (GEO) for validation.Both immune scores and stromal scores are meaningful in the correlation of subtype classification. Disease-free survival of cases with the high score group of immune scores is statistically longer than the cases in the low score group. Differentially expressed immune-related genes extracted from the comparison can effectively evaluate the prognosis of patients with breast cancer and these genes are primarily involved in immune responses, extracellular matrix, and chemokine activity. At last, we obtained a series of verified tumor immune-related genes that predict the prognosis of patients with breast cancer.Combining the Estimation of Stromal and Immune Cells in Malignant Tumor Tissues using Expression database and the TCGA database to extract the list of tumor microenvironment related genes which may help to outline the prognosis of patients with breast cancer. Some previously overlooked genes have the potential to become additional biomarkers for breast cancer. Further research on these genes can reveal a new understanding of the potential relationship between tumor microenvironment and breast cancer prognosis.The self-expanding metallic stent (SEMS) has been comprehensively investigated as a bridge to surgery. SEMS enables the control of acute colonic obstruction. https://www.selleckchem.com/products/Bortezomib.html However, comparison between SEMS and diverting colostomy as another bridge procedure was still challenging issue. Thus, the aim of this study was to compare these 2 procedures.In this retrospective cohort study, patients who received diverting colostomy and SEMS for acute left colonic obstruction between February 2016 and August 2018 were included. They were classified into the colostomy group (n = 27), including 5 patients who had SEMS failure previously, and the SEMS group (n = 23). The clinicopathologic parameters, pathologic results, and short-term outcomes were compared.No significant differences were found in clinicopathologic characteristics and complication rates between the 2 groups. After the bridge procedures, the SEMS group showed a higher rate of laparoscopic colonic resection than the colostomy group (100% vs 76%, P = .023). The colostomy group showed a higher rate of rectal cancer (24.0 Commentarii 0 Distribuiri 38 Views 0 previzualizare -
Rescue experiments indicated TRIM24 participation in GBM infiltrative dissemination. Chromatin immunoprecipitation, reporter gene assay, PCR, Western blot and immunohistochemistry demonstrated that TRIM24 activated the expression of pluripotency transcription factor SOX2 to regulate GBM stemness and invasion in vitro and in vivo. Finally, the close relationship between TRIM24 and SOX2 was validated by testing samples enrolled in our study and exploring external databases. Conclusions Our findings uncover essential roles of TRIM24-SOX2 axis in GBM stemness and invasiveness, suggesting TRIM24 as a potential target for effective GBM management.In this issue of Cell Metabolism, Pirinen et al. (2020) show that disruption in NAD+ homeostasis is a key component of the pathogenesis of mitochondrial myopathy in humans that can be targeted by the administration of the NAD+ precursor niacin, identifying NAD+ boosting as a potential treatment for this devastating disease.The Northern Territory (NT) of Australia is currently free of the dengue mosquito Aedes (Stegomyia) aegypti (L). However, on 17 February 2004, two Ae. aegypti adults were captured in two routine CO2 -baited encephalitis virus surveillance traps in Tennant Creek, located 990 km south of Darwin in the NT. The detection triggered an immediate survey and control response undertaken by the NT Department of Health and Community Services, followed by a Commonwealth of Australia-funded Ae. aegypti elimination program. This report details the methods and results of the detection and subsequent elimination activities that were carried out between 2004 and 2006, returning the NT to its dengue vector-free status. There have been very few successful Ae. aegypti elimination programs in the world. This purposeful mosquito elimination for Australia was officially declared on 5 April 2006.Background In newborns, exposure to the extrauterine environment with high oxygen tension and sudden pulmonary adaptation lead to an increase in reactive oxygen species (ROS). https://www.selleckchem.com/products/Cyclopamine.html ROS have several physiological roles, which are essential for neonatal development, however, when unbalanced, these highly unstable molecules can cause cellular destabilisation, compromising vital processes. Objectives To characterise the oxidative status in healthy equine neonates, evaluating an indicator of lipid peroxidation and both enzymatic and non-enzymatic antioxidant systems, during the first week of life. Study design Experimental cohort. Methods Twenty-four foals were evaluated, with blood collections performed at 5 minutes, 12, 72 and 168 hours after birth. The degree of lipid peroxidation was quantified using Thiobarbituric Acid Reactive Substances (TBARS). Superoxide dismutase (***) and glutathione peroxidase (GPx) enzymatic activities, and total, conjugated and unconjugated serum bilirubin levels were also analysed. Compa-oxidant balance during the first 168 hours after birth in equine neonates.Venous thromboembolism (VTE) remains a major cause of morbidity and mortality in hospitalized medically ill patients. These patients constitute a heterogeneous population, whose VTE risk is dependent upon the acute medical illness, immobility status, and patient-specific risk factors that have been incorporated into individualized VTE risk assessment models. Randomized placebo-controlled trials (RCTs) have shown both efficacy and net clinical benefit of in-hospital thromboprophylaxis, which is supported by guideline recommendations. The data for extended posthospital discharge thromboprophylaxis are more nuanced. RCTs comparing standardized duration low-molecular weight heparin versus extended duration direct oral anticoagulants, such as betrixaban and rivaroxaban, have shown efficacy and net clinical benefit in select groups of high VTE and low-bleed risk populations of hospitalized medically ill patients. These oral agents are now approved for both in-hospital and extended thromboprophylaxis. However, the most recent guidelines do not recommend routine use of these agents for extended thromboprophylaxis. Longitudinal studies in medically ill patients have shown that the majority of VTE events occur in the posthospital discharge setting within 6 weeks of hospitalization. This, coupled with the short hospital length-of-stay and lack of routine postdischarge thromboprophylaxis in U.S. health care settings, has dampened quality improvement efforts aimed at reducing hospital-acquired VTE. The aim of this multidisciplinary document is to provide an evidence-based framework to guide clinicians in assessing VTE and bleeding risk in hospitalized medically ill patients using an individualized, risk-adapted, and patient-centered approach, with the aim of providing clinical pathways toward the use of appropriate type and duration of available thromboprophylactic agents.Background The outbreak of COVID-19, caused by SARS-CoV-2, started in December 2019, Wuhan, China. We aimed to figure out the time-point and duration of using antiviral drugs for receiving the maximal effects in patients with COVID-19. Methods In this study, we enrolled 129 confirmed COVID-19 mild to moderate patients who had been treated with antiviral drugs during their hospitalization in Wuhan Union Hospital China. The patients were divided into early antiviral treatment group and late antiviral treatment group. The demographic data, laboratory tests, the virus clearance time, chest computed tomography (CT) scans, etc. were extracted, calculated and compared between two groups. Results Our data showed that the median time from illness onset to initiation of antiviral treatment was 6 days in all patients. The group with early antiviral treatment demonstrated 7 days shorter in the virus clearance time when compared to the group with late antiviral treatment. After virus clearance, the group with early antiviral treatment showed milder illness than the group with late antiviral treatment. Conclusions Early antiviral treatment could effectively shorten the virus clearance time, and prevent the rapid progression of COVID-19. Therefore, the COVID-19 patients should receive combined therapies with antiviral treatment at early stage. This article is protected by copyright. All rights reserved.
Rescue experiments indicated TRIM24 participation in GBM infiltrative dissemination. Chromatin immunoprecipitation, reporter gene assay, PCR, Western blot and immunohistochemistry demonstrated that TRIM24 activated the expression of pluripotency transcription factor SOX2 to regulate GBM stemness and invasion in vitro and in vivo. Finally, the close relationship between TRIM24 and SOX2 was validated by testing samples enrolled in our study and exploring external databases. Conclusions Our findings uncover essential roles of TRIM24-SOX2 axis in GBM stemness and invasiveness, suggesting TRIM24 as a potential target for effective GBM management.In this issue of Cell Metabolism, Pirinen et al. (2020) show that disruption in NAD+ homeostasis is a key component of the pathogenesis of mitochondrial myopathy in humans that can be targeted by the administration of the NAD+ precursor niacin, identifying NAD+ boosting as a potential treatment for this devastating disease.The Northern Territory (NT) of Australia is currently free of the dengue mosquito Aedes (Stegomyia) aegypti (L). However, on 17 February 2004, two Ae. aegypti adults were captured in two routine CO2 -baited encephalitis virus surveillance traps in Tennant Creek, located 990 km south of Darwin in the NT. The detection triggered an immediate survey and control response undertaken by the NT Department of Health and Community Services, followed by a Commonwealth of Australia-funded Ae. aegypti elimination program. This report details the methods and results of the detection and subsequent elimination activities that were carried out between 2004 and 2006, returning the NT to its dengue vector-free status. There have been very few successful Ae. aegypti elimination programs in the world. This purposeful mosquito elimination for Australia was officially declared on 5 April 2006.Background In newborns, exposure to the extrauterine environment with high oxygen tension and sudden pulmonary adaptation lead to an increase in reactive oxygen species (ROS). https://www.selleckchem.com/products/Cyclopamine.html ROS have several physiological roles, which are essential for neonatal development, however, when unbalanced, these highly unstable molecules can cause cellular destabilisation, compromising vital processes. Objectives To characterise the oxidative status in healthy equine neonates, evaluating an indicator of lipid peroxidation and both enzymatic and non-enzymatic antioxidant systems, during the first week of life. Study design Experimental cohort. Methods Twenty-four foals were evaluated, with blood collections performed at 5 minutes, 12, 72 and 168 hours after birth. The degree of lipid peroxidation was quantified using Thiobarbituric Acid Reactive Substances (TBARS). Superoxide dismutase (SOD) and glutathione peroxidase (GPx) enzymatic activities, and total, conjugated and unconjugated serum bilirubin levels were also analysed. Compa-oxidant balance during the first 168 hours after birth in equine neonates.Venous thromboembolism (VTE) remains a major cause of morbidity and mortality in hospitalized medically ill patients. These patients constitute a heterogeneous population, whose VTE risk is dependent upon the acute medical illness, immobility status, and patient-specific risk factors that have been incorporated into individualized VTE risk assessment models. Randomized placebo-controlled trials (RCTs) have shown both efficacy and net clinical benefit of in-hospital thromboprophylaxis, which is supported by guideline recommendations. The data for extended posthospital discharge thromboprophylaxis are more nuanced. RCTs comparing standardized duration low-molecular weight heparin versus extended duration direct oral anticoagulants, such as betrixaban and rivaroxaban, have shown efficacy and net clinical benefit in select groups of high VTE and low-bleed risk populations of hospitalized medically ill patients. These oral agents are now approved for both in-hospital and extended thromboprophylaxis. However, the most recent guidelines do not recommend routine use of these agents for extended thromboprophylaxis. Longitudinal studies in medically ill patients have shown that the majority of VTE events occur in the posthospital discharge setting within 6 weeks of hospitalization. This, coupled with the short hospital length-of-stay and lack of routine postdischarge thromboprophylaxis in U.S. health care settings, has dampened quality improvement efforts aimed at reducing hospital-acquired VTE. The aim of this multidisciplinary document is to provide an evidence-based framework to guide clinicians in assessing VTE and bleeding risk in hospitalized medically ill patients using an individualized, risk-adapted, and patient-centered approach, with the aim of providing clinical pathways toward the use of appropriate type and duration of available thromboprophylactic agents.Background The outbreak of COVID-19, caused by SARS-CoV-2, started in December 2019, Wuhan, China. We aimed to figure out the time-point and duration of using antiviral drugs for receiving the maximal effects in patients with COVID-19. Methods In this study, we enrolled 129 confirmed COVID-19 mild to moderate patients who had been treated with antiviral drugs during their hospitalization in Wuhan Union Hospital China. The patients were divided into early antiviral treatment group and late antiviral treatment group. The demographic data, laboratory tests, the virus clearance time, chest computed tomography (CT) scans, etc. were extracted, calculated and compared between two groups. Results Our data showed that the median time from illness onset to initiation of antiviral treatment was 6 days in all patients. The group with early antiviral treatment demonstrated 7 days shorter in the virus clearance time when compared to the group with late antiviral treatment. After virus clearance, the group with early antiviral treatment showed milder illness than the group with late antiviral treatment. Conclusions Early antiviral treatment could effectively shorten the virus clearance time, and prevent the rapid progression of COVID-19. Therefore, the COVID-19 patients should receive combined therapies with antiviral treatment at early stage. This article is protected by copyright. All rights reserved.0 Commentarii 0 Distribuiri 27 Views 0 previzualizare -
In multivariable analyses, voice was linked to all forms of SRH communication in Kinshasa and Cuenca with adjusted odds ratios ranging from 1.6 to 2.2, but not in Shanghai. In Cuenca, decision-making was associated with a 50% and 60% increase in odds of communication about pregnancy and contraception, respectively. In Kinshasa, a stronger association between voice and pregnancy discussions was observed for girls than boys. CONCLUSIONS Developmental characteristics and voice were linked to communication about SRH among young adolescents across two contexts. Results suggest agency may play a role in shaping antecedents, like communication, to sexual behaviors. PURPOSE Untreated major depression can lead to various negative health and social consequences among adolescents. This study aimed to examine national patterns, temporal trends, and factors related to U.S. https://www.selleckchem.com/mTOR.html adolescents' mental health service use for 12-month major depression across service settings. METHODS Data on adolescents aged 12-17 years who received treatment for their 12-month major depression were drawn from the National Survey on Drug Use and Health, 2011-2018. Patterns, trends, and factors related to adolescents' service use in specialty mental health, educational, and general medical settings and multiple settings were examined using bivariate and multivariate logistic regression. RESULTS Across the survey years, service use in specialty mental health settings was the most common, followed by educational and general medical settings. A significant increase was observed in adolescents' specialty mental health service use (p less then .001) over time, whereas the rates of service use in educational and general medical settings remained stable. Approximately 40% of adolescents who were treated for 12-month depression received services in multiple settings each year, with no significant change over time. Among multisetting service users, combined service use in specialty mental health and educational settings was the most common. Adolescents' age, race, gender, insurance status, family income, and school experiences significantly influenced their service use across settings. CONCLUSIONS Continued efforts are needed to improve service provision for adolescents with depression, especially in educational and general medical settings. Strengthened funding and policy support are warranted to expand safety-net mental health services for uninsured, low-income, and racial/ethnic minority adolescents. INTRODUCTION The NHS breast screening programme only employs female mammographers to carry out breast screening. The screening service is experiencing a shortage of staff and introducing male mammographers into the service is a potential solution. This research aimed to determine if the introduction of male mammographers would impact acceptance rates of the offer of screening, how women feel about the potential change and what the impact would be at a programme level. METHODS The research was conducted in 3 stages. Initially 24 face-to-face interviews were conducted with women aged 45-70 and 19 interviews over the telephone with stakeholders; these interviews explored what women's reaction would be to the introduction of male mammographers. These interviews informed the content of a questionnaire that was completed online by 1000 women aged 50-71. It explored what women would do if offered a test with a male mammographer and how they felt about the potential change. RESULTS Over half, 53.4% stated they would attend a routine mammogram if the mammographer was male, 15.3% said they would attend if a female chaperone was present, and 31.3% stated they would refuse to attend. The face-to-face interviews suggested women view routine breast screening differently to other healthcare interactions because it is an optional service and not a treatment. As a result, participants had higher expectations both in terms of expecting a choice over the gender of the mammographer and a need to feel comfortable. CONCLUSION AND IMPLICATIONS FOR PRACTICE The findings indicate that the percentage of eligible women attending breast screening may decrease if male mammographers were introduced. This impact of introducing male mammographers would need to be carefully weighed up against the potential gains in workforce numbers in opening up mammography to male practitioners. BACKGROUND Primary Bone Lymphoma can be challenging to interpret even for the experienced reviewer. This case demonstrates the subtle multimodality appearances encountered. CASE SUMMARY a gentleman in his late 70s with one week history of groin pain underwent plain radiography and subsequent further imaging. Only following biopsy was the diagnosis of primary bone lymphoma made for which the patient has received successful treatment. CONCLUSION This case demonstrates the difficulties in identifying lymphoma when seen within the musculoskeletal system. It also provides opportunity to reflect on the importance of initial imaging, good quality history and understanding of differentials. Combination of corticosteroids (CS) with cyclosporin A (CsA) is widely used in the treatment of autoimmune diseases, autoinflammatory diseases and transplantation rejection. However, some patients fail to respond or develop resistance to the combination regimen. In Vogt-Koyanagi-Harada (VKH) disease model, we performed RNA sequencing (RNA-seq) based transcriptomics, isobaric tags for relative and absolute quantification (iTRAQ) based proteomics and assays in vitro to screen and validate potential resistant molecules. We found that a total of 1697 differentially expressed genes (DEGs) and 21 differentially expressed proteins (DEPs) in CD4+ T cells between CsA & CS-resistant and -sensitive VKH patients. Ribosomal Protein S4, Y-Linked 1 (RPS4Y1) was verified to regulate the resistance of CD4+ T cells from male VKH patients to CsA & CS. Importantly, we showed that chlorambucil (CLB) could reverse the resistance by RPS4Y1 suppression. Taken together, we identify RPS4Y1 as an important CsA & CS resistance gene in VKH disease. Researchers should consider validating the resistant effect of RPS4Y1 in other autoimmune diseases or organ transplantation.
In multivariable analyses, voice was linked to all forms of SRH communication in Kinshasa and Cuenca with adjusted odds ratios ranging from 1.6 to 2.2, but not in Shanghai. In Cuenca, decision-making was associated with a 50% and 60% increase in odds of communication about pregnancy and contraception, respectively. In Kinshasa, a stronger association between voice and pregnancy discussions was observed for girls than boys. CONCLUSIONS Developmental characteristics and voice were linked to communication about SRH among young adolescents across two contexts. Results suggest agency may play a role in shaping antecedents, like communication, to sexual behaviors. PURPOSE Untreated major depression can lead to various negative health and social consequences among adolescents. This study aimed to examine national patterns, temporal trends, and factors related to U.S. https://www.selleckchem.com/mTOR.html adolescents' mental health service use for 12-month major depression across service settings. METHODS Data on adolescents aged 12-17 years who received treatment for their 12-month major depression were drawn from the National Survey on Drug Use and Health, 2011-2018. Patterns, trends, and factors related to adolescents' service use in specialty mental health, educational, and general medical settings and multiple settings were examined using bivariate and multivariate logistic regression. RESULTS Across the survey years, service use in specialty mental health settings was the most common, followed by educational and general medical settings. A significant increase was observed in adolescents' specialty mental health service use (p less then .001) over time, whereas the rates of service use in educational and general medical settings remained stable. Approximately 40% of adolescents who were treated for 12-month depression received services in multiple settings each year, with no significant change over time. Among multisetting service users, combined service use in specialty mental health and educational settings was the most common. Adolescents' age, race, gender, insurance status, family income, and school experiences significantly influenced their service use across settings. CONCLUSIONS Continued efforts are needed to improve service provision for adolescents with depression, especially in educational and general medical settings. Strengthened funding and policy support are warranted to expand safety-net mental health services for uninsured, low-income, and racial/ethnic minority adolescents. INTRODUCTION The NHS breast screening programme only employs female mammographers to carry out breast screening. The screening service is experiencing a shortage of staff and introducing male mammographers into the service is a potential solution. This research aimed to determine if the introduction of male mammographers would impact acceptance rates of the offer of screening, how women feel about the potential change and what the impact would be at a programme level. METHODS The research was conducted in 3 stages. Initially 24 face-to-face interviews were conducted with women aged 45-70 and 19 interviews over the telephone with stakeholders; these interviews explored what women's reaction would be to the introduction of male mammographers. These interviews informed the content of a questionnaire that was completed online by 1000 women aged 50-71. It explored what women would do if offered a test with a male mammographer and how they felt about the potential change. RESULTS Over half, 53.4% stated they would attend a routine mammogram if the mammographer was male, 15.3% said they would attend if a female chaperone was present, and 31.3% stated they would refuse to attend. The face-to-face interviews suggested women view routine breast screening differently to other healthcare interactions because it is an optional service and not a treatment. As a result, participants had higher expectations both in terms of expecting a choice over the gender of the mammographer and a need to feel comfortable. CONCLUSION AND IMPLICATIONS FOR PRACTICE The findings indicate that the percentage of eligible women attending breast screening may decrease if male mammographers were introduced. This impact of introducing male mammographers would need to be carefully weighed up against the potential gains in workforce numbers in opening up mammography to male practitioners. BACKGROUND Primary Bone Lymphoma can be challenging to interpret even for the experienced reviewer. This case demonstrates the subtle multimodality appearances encountered. CASE SUMMARY a gentleman in his late 70s with one week history of groin pain underwent plain radiography and subsequent further imaging. Only following biopsy was the diagnosis of primary bone lymphoma made for which the patient has received successful treatment. CONCLUSION This case demonstrates the difficulties in identifying lymphoma when seen within the musculoskeletal system. It also provides opportunity to reflect on the importance of initial imaging, good quality history and understanding of differentials. Combination of corticosteroids (CS) with cyclosporin A (CsA) is widely used in the treatment of autoimmune diseases, autoinflammatory diseases and transplantation rejection. However, some patients fail to respond or develop resistance to the combination regimen. In Vogt-Koyanagi-Harada (VKH) disease model, we performed RNA sequencing (RNA-seq) based transcriptomics, isobaric tags for relative and absolute quantification (iTRAQ) based proteomics and assays in vitro to screen and validate potential resistant molecules. We found that a total of 1697 differentially expressed genes (DEGs) and 21 differentially expressed proteins (DEPs) in CD4+ T cells between CsA & CS-resistant and -sensitive VKH patients. Ribosomal Protein S4, Y-Linked 1 (RPS4Y1) was verified to regulate the resistance of CD4+ T cells from male VKH patients to CsA & CS. Importantly, we showed that chlorambucil (CLB) could reverse the resistance by RPS4Y1 suppression. Taken together, we identify RPS4Y1 as an important CsA & CS resistance gene in VKH disease. Researchers should consider validating the resistant effect of RPS4Y1 in other autoimmune diseases or organ transplantation.0 Commentarii 0 Distribuiri 39 Views 0 previzualizare -
These compounds, with novel chemical scaffolds, may serve as the initial material for developing new SUMOylation inhibitors.Peptide transporter 1 (PepT1), highly expressed on the apical membrane of enterocytes, is involved in energy balance and mediates intestinal absorption of peptidomimetic drugs. In this study, we investigated whether and how diabetes affected the function and expression of intestinal PepT1. Diabetes was induced in rats by combination of high-fat diet and low dose streptozocin injection. Pharmacokinetics study demonstrated that diabetes significantly decreased plasma exposures of cephalexin and acyclovir following oral administration of cephalexin and valacyclovir, respectively. Single-pass intestinal perfusion analysis showed that diabetes remarkably decreased cephalexin absorption, which was associated with decreased expression of intestinal PepT1 protein. We assessed the levels of bile acids in intestine of diabetic rats, and found that diabetic rats exhibited significantly higher levels of chenodeoxycholic acid (CDCA), cholic acid (CA) and glycocholic acid (GCA), and lower levels of lithocholic acid (LCA) and hyodeoxycholic acid (HDCA) than control rats; intestinal deoxycholic acid (DCA) levels were unaltered. In Caco-2 cells, the 6 bile acids remarkably decreased expression of PepT1 protein with CDCA causing the strongest inhibition, whereas TNF-α, LPS and insulin little affected expression of PepT1 protein; short-chain fatty acids induced rather than decreased expression of PepT1 protein. Farnesoid X receptor (FXR) inhibitor glycine-β-muricholic acid or FXR knockdown reversed the downregulation of PepT1 expression by CDCA and GW4064 (another FXR agonist). https://www.selleckchem.com/products/Cyclopamine.html In diabetic rats, the expression of intestinal FXR protein was markedly increased. Oral administration of CDCA (90, 180 mg·kg-1·d-1, for 3 weeks) dose-dependently decreased the expression and function of intestinal PepT1 in rats. In conclusion, diabetes impairs the expression and function of intestinal PepT1 partly via CDCA-mediated FXR activation.Mechanisms of cardiomyopathy caused by obesity/hyperlipidemia are complicated. Obesity is usually associated with chronic low-grade inflammation and may lead to the onset and progression of myocardial fibrosis and remodeling. TLR4/MyD88 signaling pathway, as a key regulator of inflammation, plays an important role in the pathogenesis of obesity-induced cardiomyopathy. We previously demonstrated that LM9, a novel MyD88 inhibitor, attenuated inflammatory responses and fibrosis in obesity-induced cardiomyopathy by inhibiting the formation of TLR4/MyD88 complex. In this study, we investigated the protective effects of LM9 on obesity-induced cardiomyopathy in vitro and in vivo. We showed that LM9 (5, 10 μM) significantly attenuates palmitic acid (PA)-induced inflammation in mouse peritoneal macrophages, evidenced by decreased expression of proinflammatory genes including TNF-α, IL-6, IL-1β, and ICAM-1. In cardiac-derived H9C2 cells, LM9 treatment suppressed PA-induced inflammation, lipid accumulation, and fibrotic responses. In addition, LM9 treatment also inhibited PA-activated TLR4/MyD88/NF-κB signaling pathway. We further revealed in HEK293 cells that LM9 treatment blocked the TLR4/MyD88 binding and MyD88 homodimer formation. In HFD-fed ****, administration of LM9 (5, 10 mg/kg, ig, every other days for 8 weeks) dose-dependently alleviated inflammation and fibrosis in heart tissues and decreased serum lipid concentration. In conclusion, this study demonstrates that MyD88 inhibitor LM9 exerts protective effects against obesity-induced cardiomyopathy, suggesting LM9 to be a promising therapeutic candidate drug for the obesity-related cardiac complications.Peptidylarginine deiminases (PADs) have an important role in the pathogenesis of rheumatoid arthritis (RA) owing to their ability to generate citrullinated proteins - the hallmark autoantigens of RA. Of the five PAD enzyme isoforms, PAD2 and PAD4 are the most strongly implicated in RA at both genetic and cellular levels, and PAD inhibitors have shown therapeutic efficacy in mouse models of inflammatory arthritis. PAD2 and PAD4 are additionally targeted by autoantibodies in distinct clinical subsets of patients with RA, suggesting anti-PAD antibodies as possible biomarkers for RA diagnosis and prognosis. This Review weighs the evidence that supports a pathogenic role for PAD enzymes in RA as both promoters and targets of the autoimmune response, as well as discussing the mechanistic and therapeutic implications of these findings in the wider context of RA pathogenesis. Understanding the origin and consequences of dysregulated PAD enzyme activity and immune responses against PAD enzymes will be important to fully comprehend the pathogenic mechanisms involved in this disease and for the development of novel strategies to treat and prevent RA.Albuminuria is a key biomarker for cardiovascular disease and chronic kidney disease. Our study aimed to describe the prevalence of albuminuria amongst people who inject drugs in London and to test any potential associations with demographic characteristics, past diagnoses, and drug preparation and administration practices. We carried out a cross-sectional survey amongst people who use drugs in London. The main outcome measure was any albuminuria including both microalbuminuria and macroalbuminuria. Three-hundred and sixteen samples were tested by local laboratory services. Our study initially employed point-of-care testing methods but this resulted in a high number of false positives. Our findings suggest the prevalence of albuminuria amongst PWID is twice that of the general population at 19% (95%CI 15.3-24.0%). Risk factors associated with albuminuria were HIV (aOR 4.11 [95% CI 1.37-12.38]); followed by overuse of acidifier for dissolving brown heroin prior to injection (aOR 2.10 [95% CI 1.04-4.22]). Albuminuria is high amongst people who inject drugs compared to the general population suggesting the presence of increased cardiovascular and renal pathologies. This is the first study to demonstrate an association with acidifier overuse. Dehydration may be common amongst this population and may affect the diagnostic accuracy of point-of-care testing for albuminuria.
These compounds, with novel chemical scaffolds, may serve as the initial material for developing new SUMOylation inhibitors.Peptide transporter 1 (PepT1), highly expressed on the apical membrane of enterocytes, is involved in energy balance and mediates intestinal absorption of peptidomimetic drugs. In this study, we investigated whether and how diabetes affected the function and expression of intestinal PepT1. Diabetes was induced in rats by combination of high-fat diet and low dose streptozocin injection. Pharmacokinetics study demonstrated that diabetes significantly decreased plasma exposures of cephalexin and acyclovir following oral administration of cephalexin and valacyclovir, respectively. Single-pass intestinal perfusion analysis showed that diabetes remarkably decreased cephalexin absorption, which was associated with decreased expression of intestinal PepT1 protein. We assessed the levels of bile acids in intestine of diabetic rats, and found that diabetic rats exhibited significantly higher levels of chenodeoxycholic acid (CDCA), cholic acid (CA) and glycocholic acid (GCA), and lower levels of lithocholic acid (LCA) and hyodeoxycholic acid (HDCA) than control rats; intestinal deoxycholic acid (DCA) levels were unaltered. In Caco-2 cells, the 6 bile acids remarkably decreased expression of PepT1 protein with CDCA causing the strongest inhibition, whereas TNF-α, LPS and insulin little affected expression of PepT1 protein; short-chain fatty acids induced rather than decreased expression of PepT1 protein. Farnesoid X receptor (FXR) inhibitor glycine-β-muricholic acid or FXR knockdown reversed the downregulation of PepT1 expression by CDCA and GW4064 (another FXR agonist). https://www.selleckchem.com/products/Cyclopamine.html In diabetic rats, the expression of intestinal FXR protein was markedly increased. Oral administration of CDCA (90, 180 mg·kg-1·d-1, for 3 weeks) dose-dependently decreased the expression and function of intestinal PepT1 in rats. In conclusion, diabetes impairs the expression and function of intestinal PepT1 partly via CDCA-mediated FXR activation.Mechanisms of cardiomyopathy caused by obesity/hyperlipidemia are complicated. Obesity is usually associated with chronic low-grade inflammation and may lead to the onset and progression of myocardial fibrosis and remodeling. TLR4/MyD88 signaling pathway, as a key regulator of inflammation, plays an important role in the pathogenesis of obesity-induced cardiomyopathy. We previously demonstrated that LM9, a novel MyD88 inhibitor, attenuated inflammatory responses and fibrosis in obesity-induced cardiomyopathy by inhibiting the formation of TLR4/MyD88 complex. In this study, we investigated the protective effects of LM9 on obesity-induced cardiomyopathy in vitro and in vivo. We showed that LM9 (5, 10 μM) significantly attenuates palmitic acid (PA)-induced inflammation in mouse peritoneal macrophages, evidenced by decreased expression of proinflammatory genes including TNF-α, IL-6, IL-1β, and ICAM-1. In cardiac-derived H9C2 cells, LM9 treatment suppressed PA-induced inflammation, lipid accumulation, and fibrotic responses. In addition, LM9 treatment also inhibited PA-activated TLR4/MyD88/NF-κB signaling pathway. We further revealed in HEK293 cells that LM9 treatment blocked the TLR4/MyD88 binding and MyD88 homodimer formation. In HFD-fed mice, administration of LM9 (5, 10 mg/kg, ig, every other days for 8 weeks) dose-dependently alleviated inflammation and fibrosis in heart tissues and decreased serum lipid concentration. In conclusion, this study demonstrates that MyD88 inhibitor LM9 exerts protective effects against obesity-induced cardiomyopathy, suggesting LM9 to be a promising therapeutic candidate drug for the obesity-related cardiac complications.Peptidylarginine deiminases (PADs) have an important role in the pathogenesis of rheumatoid arthritis (RA) owing to their ability to generate citrullinated proteins - the hallmark autoantigens of RA. Of the five PAD enzyme isoforms, PAD2 and PAD4 are the most strongly implicated in RA at both genetic and cellular levels, and PAD inhibitors have shown therapeutic efficacy in mouse models of inflammatory arthritis. PAD2 and PAD4 are additionally targeted by autoantibodies in distinct clinical subsets of patients with RA, suggesting anti-PAD antibodies as possible biomarkers for RA diagnosis and prognosis. This Review weighs the evidence that supports a pathogenic role for PAD enzymes in RA as both promoters and targets of the autoimmune response, as well as discussing the mechanistic and therapeutic implications of these findings in the wider context of RA pathogenesis. Understanding the origin and consequences of dysregulated PAD enzyme activity and immune responses against PAD enzymes will be important to fully comprehend the pathogenic mechanisms involved in this disease and for the development of novel strategies to treat and prevent RA.Albuminuria is a key biomarker for cardiovascular disease and chronic kidney disease. Our study aimed to describe the prevalence of albuminuria amongst people who inject drugs in London and to test any potential associations with demographic characteristics, past diagnoses, and drug preparation and administration practices. We carried out a cross-sectional survey amongst people who use drugs in London. The main outcome measure was any albuminuria including both microalbuminuria and macroalbuminuria. Three-hundred and sixteen samples were tested by local laboratory services. Our study initially employed point-of-care testing methods but this resulted in a high number of false positives. Our findings suggest the prevalence of albuminuria amongst PWID is twice that of the general population at 19% (95%CI 15.3-24.0%). Risk factors associated with albuminuria were HIV (aOR 4.11 [95% CI 1.37-12.38]); followed by overuse of acidifier for dissolving brown heroin prior to injection (aOR 2.10 [95% CI 1.04-4.22]). Albuminuria is high amongst people who inject drugs compared to the general population suggesting the presence of increased cardiovascular and renal pathologies. This is the first study to demonstrate an association with acidifier overuse. Dehydration may be common amongst this population and may affect the diagnostic accuracy of point-of-care testing for albuminuria.0 Commentarii 0 Distribuiri 30 Views 0 previzualizare -
Encouraging clinical results using immune checkpoint therapies to target the PD-1 axis in a variety of cancer types have paved the way for new immune therapy trials in brain tumor patients. However, the molecular mechanisms that regulate expression of the PD-1 pathway ligands, PD-L1 and PD-L2, remain poorly understood. To address this, we explored the cell-intrinsic mechanisms of constitutive PD-L1 and PD-L2 expression in brain tumors. PD-L1 and PD-L2 expression was assessed by flow cytometry and qRT-PCR in brain tumor cell lines and patient tumor-derived brain tumor-initiating cells (BTICs). Immunologic effects of PD-L2 overexpression were evaluated by IFN-γ ELISPOT. CD274 and PDCD1LG2 cis-regulatory regions were cloned from genomic DNA and assessed in full or by mutating and/or deleting regulatory elements by luciferase assays. Correlations between clinical responses and PD-L1 and PD-L2 expression status were evaluated in TCGA datasets in LGG and GBM patients. We found that a subset of brain tumor cell lines and BTICs expressed high constitutive levels of PD-L1 and PD-L2 and that PD-L2 overexpression inhibited neoantigen specific T cell IFN-γ production. Characterization of novel cis-regulatory regions in CD274 and PDCD1LG2 lead us to identify that GATA2 is sufficient to drive PD-L1 and PD-L2 expression and is necessary for PD-L2 expression. Importantly, in TCGA datasets, PD-L2 correlated with worse clinical outcomes in glioma patients.. By perturbing GATA2 biology, targeted therapies may be useful to decrease inhibitory effects of PD-L2 in the microenvironment.Modulation of tumor microenvironment is an emerging frontier for new therapeutics. However in meningiomas, the most frequent adult brain tumor, the correlation of microenvironment with tumor phenotype is scarcely studied. We applied a variety of systems biology approaches to bulk tumor transcriptomics to explore the immune environments of both skull base and convexity (hemispheric) meningiomas. We hypothesized that the more benign biology of skull base meningiomas parallels the relative composition and activity of immune cells that oppose tumor growth and/or survival. We firstly applied gene co-expression networks to tumor bulk transcriptomics from 107 meningiomas (derived from 3 independent studies) and found immune processes to be the sole biological mechanism correlated with anatomical location while correcting for tumour grade. We then derived tumor immune cell fractions from bulk transcriptomics data and examined the immune cell-cytokine interactions using a network-based approach. We demonstrate that oncolytic Gamma-Delta T cells dominate skull base meningiomas while mast cells and neutrophils, known to play a role in oncogenesis, show greater activity in convexity tumors. Our results are the first to suggest the importance of tumor microenvironment in meningioma biology in the context of anatomic location and immune landscape. These findings may help better inform surgical decision making and yield location-specific therapies through modulation of immune microenvironment.We investigated the evolution of concentration and phase structure of colloidal suspensions in a two-ends-open tube during drying process. The volume fraction and crystal structure of suspension in the capillary tube were determined by reflection spectrometer during drying process. Our experimental results show (a) evaporation takes place in two directions of the tube, though **** stronger in one direction than the other; (b) during drying process, colloidal suspension column along the tube can be divided into four regions, namely, the close packed region, concentrated region, initial concentration region and dilution region. A new model describing the evolution of concentration profile was proposed and the calculated results based on the model are in good agreement with the experimental ones. According to solute conservation, we also present a simple way to estimate the concentration of close packed region.We are just beginning to understand the diversity of the peripheral T cell compartment, which arises from the specialization of different T cell subsets and the plasticity of individual naive T cells to adopt different fates. Although the progeny of a single T cell can differentiate into many phenotypes following infection, individual T cells are biased towards particular phenotypes. These biases are typically ascribed to random factors that occur during and after antigenic stimulation. However, the T cell compartment does not remain static with age, and shifting immune challenges during ontogeny give rise to T cells with distinct functional properties. Here, we argue that the developmental history of naive T cells creates a 'hidden layer' of diversity that persists into adulthood. Insight into this diversity can provide a new perspective on immunity and immunotherapy across the lifespan.Perturbations in metabolic processes are associated with diseases such as obesity, type 2 diabetes mellitus, certain infections and some cancers. A resurgence of interest in creatine biology is developing, with new insights into a diverse set of regulatory functions for creatine. This resurgence is primarily driven by technological advances in genetic engineering and metabolism as well as by the realization that this metabolite has key roles in cells beyond the muscle and brain. https://www.selleckchem.com/products/vb124.html Herein, we highlight the latest advances in creatine biology in tissues and cell types that have historically received little attention in the field. In adipose tissue, creatine controls thermogenic respiration and loss of this metabolite impairs whole-body energy expenditure, leading to obesity. We also cover the various roles that creatine metabolism has in cancer cell survival and the function of the immune system. Renewed interest in this area has begun to showcase the therapeutic potential that lies in understanding how changes in creatine metabolism lead to metabolic disease.Small molecule polyamines are abundant in all life forms and participate in diverse aspects of cell growth and differentiation. Spermidine/spermine acetyltransferase (SAT1) is the rate-limiting enzyme in polyamine catabolism and a primary genetic risk factor for suicidality. Here, using genome-wide screening, we find that SAT1 selectively controls nicotinic acetylcholine receptor (nAChR) biogenesis. SAT1 specifically augments assembly of nAChRs containing α7 or α4β2, but not α6 subunits. Polyamines are classically studied as regulators of ion channel gating that engage the nAChR channel pore. In contrast, we find polyamine effects on assembly involve the nAChR cytosolic loop. Neurological studies link brain polyamines with neurodegenerative conditions. Our pharmacological and transgenic animal studies find that reducing polyamines enhances cortical neuron nAChR expression and augments nicotine-mediated neuroprotection. Taken together, we describe a most unexpected role for polyamines in regulating ion channel assembly, which provides a new avenue for nAChR neuropharmacology.
Encouraging clinical results using immune checkpoint therapies to target the PD-1 axis in a variety of cancer types have paved the way for new immune therapy trials in brain tumor patients. However, the molecular mechanisms that regulate expression of the PD-1 pathway ligands, PD-L1 and PD-L2, remain poorly understood. To address this, we explored the cell-intrinsic mechanisms of constitutive PD-L1 and PD-L2 expression in brain tumors. PD-L1 and PD-L2 expression was assessed by flow cytometry and qRT-PCR in brain tumor cell lines and patient tumor-derived brain tumor-initiating cells (BTICs). Immunologic effects of PD-L2 overexpression were evaluated by IFN-γ ELISPOT. CD274 and PDCD1LG2 cis-regulatory regions were cloned from genomic DNA and assessed in full or by mutating and/or deleting regulatory elements by luciferase assays. Correlations between clinical responses and PD-L1 and PD-L2 expression status were evaluated in TCGA datasets in LGG and GBM patients. We found that a subset of brain tumor cell lines and BTICs expressed high constitutive levels of PD-L1 and PD-L2 and that PD-L2 overexpression inhibited neoantigen specific T cell IFN-γ production. Characterization of novel cis-regulatory regions in CD274 and PDCD1LG2 lead us to identify that GATA2 is sufficient to drive PD-L1 and PD-L2 expression and is necessary for PD-L2 expression. Importantly, in TCGA datasets, PD-L2 correlated with worse clinical outcomes in glioma patients.. By perturbing GATA2 biology, targeted therapies may be useful to decrease inhibitory effects of PD-L2 in the microenvironment.Modulation of tumor microenvironment is an emerging frontier for new therapeutics. However in meningiomas, the most frequent adult brain tumor, the correlation of microenvironment with tumor phenotype is scarcely studied. We applied a variety of systems biology approaches to bulk tumor transcriptomics to explore the immune environments of both skull base and convexity (hemispheric) meningiomas. We hypothesized that the more benign biology of skull base meningiomas parallels the relative composition and activity of immune cells that oppose tumor growth and/or survival. We firstly applied gene co-expression networks to tumor bulk transcriptomics from 107 meningiomas (derived from 3 independent studies) and found immune processes to be the sole biological mechanism correlated with anatomical location while correcting for tumour grade. We then derived tumor immune cell fractions from bulk transcriptomics data and examined the immune cell-cytokine interactions using a network-based approach. We demonstrate that oncolytic Gamma-Delta T cells dominate skull base meningiomas while mast cells and neutrophils, known to play a role in oncogenesis, show greater activity in convexity tumors. Our results are the first to suggest the importance of tumor microenvironment in meningioma biology in the context of anatomic location and immune landscape. These findings may help better inform surgical decision making and yield location-specific therapies through modulation of immune microenvironment.We investigated the evolution of concentration and phase structure of colloidal suspensions in a two-ends-open tube during drying process. The volume fraction and crystal structure of suspension in the capillary tube were determined by reflection spectrometer during drying process. Our experimental results show (a) evaporation takes place in two directions of the tube, though much stronger in one direction than the other; (b) during drying process, colloidal suspension column along the tube can be divided into four regions, namely, the close packed region, concentrated region, initial concentration region and dilution region. A new model describing the evolution of concentration profile was proposed and the calculated results based on the model are in good agreement with the experimental ones. According to solute conservation, we also present a simple way to estimate the concentration of close packed region.We are just beginning to understand the diversity of the peripheral T cell compartment, which arises from the specialization of different T cell subsets and the plasticity of individual naive T cells to adopt different fates. Although the progeny of a single T cell can differentiate into many phenotypes following infection, individual T cells are biased towards particular phenotypes. These biases are typically ascribed to random factors that occur during and after antigenic stimulation. However, the T cell compartment does not remain static with age, and shifting immune challenges during ontogeny give rise to T cells with distinct functional properties. Here, we argue that the developmental history of naive T cells creates a 'hidden layer' of diversity that persists into adulthood. Insight into this diversity can provide a new perspective on immunity and immunotherapy across the lifespan.Perturbations in metabolic processes are associated with diseases such as obesity, type 2 diabetes mellitus, certain infections and some cancers. A resurgence of interest in creatine biology is developing, with new insights into a diverse set of regulatory functions for creatine. This resurgence is primarily driven by technological advances in genetic engineering and metabolism as well as by the realization that this metabolite has key roles in cells beyond the muscle and brain. https://www.selleckchem.com/products/vb124.html Herein, we highlight the latest advances in creatine biology in tissues and cell types that have historically received little attention in the field. In adipose tissue, creatine controls thermogenic respiration and loss of this metabolite impairs whole-body energy expenditure, leading to obesity. We also cover the various roles that creatine metabolism has in cancer cell survival and the function of the immune system. Renewed interest in this area has begun to showcase the therapeutic potential that lies in understanding how changes in creatine metabolism lead to metabolic disease.Small molecule polyamines are abundant in all life forms and participate in diverse aspects of cell growth and differentiation. Spermidine/spermine acetyltransferase (SAT1) is the rate-limiting enzyme in polyamine catabolism and a primary genetic risk factor for suicidality. Here, using genome-wide screening, we find that SAT1 selectively controls nicotinic acetylcholine receptor (nAChR) biogenesis. SAT1 specifically augments assembly of nAChRs containing α7 or α4β2, but not α6 subunits. Polyamines are classically studied as regulators of ion channel gating that engage the nAChR channel pore. In contrast, we find polyamine effects on assembly involve the nAChR cytosolic loop. Neurological studies link brain polyamines with neurodegenerative conditions. Our pharmacological and transgenic animal studies find that reducing polyamines enhances cortical neuron nAChR expression and augments nicotine-mediated neuroprotection. Taken together, we describe a most unexpected role for polyamines in regulating ion channel assembly, which provides a new avenue for nAChR neuropharmacology.0 Commentarii 0 Distribuiri 55 Views 0 previzualizare
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