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This review addresses the current state of this field.Dosage of immunosuppressive drugs after transplantation critically determines rejection and infection episodes. In this study, a global immune function assay was characterized among controls, dialysis-patients, and transplant-recipients to evaluate its utility for pharmacodynamic monitoring of immunosuppressive drugs and for predicting infections. Whole-blood samples were stimulated with anti-CD3/toll-like-receptor (TLR7/8)-agonist in the presence or absence of drugs and IFN-γ secretion was measured by ELISA. Additional stimulation-induced cytokines were characterized among T-, B-, and NK-cells using flow-cytometry. Cytokine-secretion was dominated by IFN-γ, and mainly observed in CD4, CD8, and NK-cells. Intra-assay variability was low (CV = 10.4 ± 6.2%), whereas variability over time was high, even in the absence of clinical events (CV = 65.0 ± 35.7%). Cyclosporine A, tacrolimus and steroids dose-dependently inhibited IFN-γ secretion, and reactivity was further reduced when calcineurin inhibitors were combined with steroids. Moreover, IFN-γ levels significantly differed between controls, dialysis-patients, and transplant-recipients, with lowest IFN-γ levels early after transplantation (p less then 0.001). However, a single test had limited ability to predict infectious episodes. In conclusion, the assay may have potential for basic pharmacodynamic characterization of immunosuppressive drugs and their combinations, and for assessing loss of global immunocompetence after transplantation, but its application to guide drug-dosing and to predict infectious on an individual basis is limited.Cancer is a significant medical issue, being one of the main causes of mortality around the world. The therapies for this pathology depend on the stage in which the cancer is found, but it is usually diagnosed at an advanced stage in which the treatment is chemotherapy. Platinum drugs are among the most commonly used in therapy, unfortunately, one of the main obstacles to this treatment is the development of chemoresistance, which is the ability of cancer cells to evade the effects of drugs. Although some molecular mechanisms involved in resistance to platinum drugs are described, elucidation is still required of others. Secretion of inflammatory mediators such as cytokines and chemokines, by tumor microenvironment components or tumor cells, show direct influence on proliferation, metastasis and progression of cancer and are related to chemoresistance and poor prognosis. In this review, the general mechanisms associated with resistance to platinum drugs, inflammation on cancer development and chemoresistance in various types of cancer will be approached with special emphasis on the current history of CC chemokines subfamily-mediated chemoresistance.Many functions of the immune system are impaired in neonates, allowing vulnerability to serious bacterial, viral and fungal infections which would otherwise not be pathogenic to mature individuals. This vulnerability is exacerbated in compromised newborns such as premature neonates and those who have undergone surgery or who require care in an intensive care unit. Higher susceptibility of preterm neonates to infections is associated with delayed immune system maturation, with deficiencies present in both the innate and adaptive immune components. Here, we review recent insights into early life immunity, and highlight features associated with compromised newborns, given the challenges of studying neonatal immunity in compromised neonates due to the transient nature of this period of life, and logistical and ethical obstacles posed by undertaking studies newborns and infants. Finally, we highlight how the unique immunological characteristics of the premature host play key roles in the pathogenesis of diseases that are unique to this population, including necrotizing enterocolitis and the associated sequalae of lung and brain injury.While mortality after acute sepsis has decreased, the long-term recovery for survivors is still poor, particularly those developing persistent inflammation, immunosuppression, and catabolism syndrome (PICS). While previously thought that activated neutrophils responding to the acute phase of sepsis migrate to the spleen to undergo cell death and contribute to immunosuppression, our data show a significant accumulation of distinct, yet functional, neutrophil populations in the spleen in a murine model of PICS. The exact role and function of neutrophils in this response is still unclear. The objective of our study was to better define the immune function of splenic neutrophils to determine if this could give insight into the pathogenesis of PICS. Using a murine model of cecal ligation and puncture (CLP), which demonstrates all characteristics of PICS by 8 days, spleens were harvested, and neutrophils were identified by Ly6G and CD11b expression via flow cytometry. Nearly all splenic neutrophils expressed CD54, uring PICS is related to extramedullary myelopoiesis, leading to the production of immature neutrophils. While not suppressor cells, the majority have greater chemotactic function but less inflammatory responsiveness, which may contribute to the immunosuppression seen in PICS. Attention to these distinct neutrophil populations after septic or other systemic inflammatory responses is therefore critical to understanding the mechanisms of PICS.Within human health research, the remarkable utility of kinase inhibitors as therapeutics has motivated efforts to understand biology at the level of global cellular kinase activity (the kinome). In contrast, the diminished potential for using kinase inhibitors in food animals has dampened efforts to translate this research approach to livestock species. This, in our opinion, was a lost opportunity for livestock researchers given the unique potential of kinome analysis to offer insight into complex biology. To remedy this situation, our lab developed user-friendly, cost-effective approaches for kinome analysis that can be readily incorporated into most research programs but with a specific priority to enable the technology to livestock researchers. These contributions include the development of custom software programs for the creation of species-specific kinome arrays as well as comprehensive deconvolution and analysis of kinome array data. https://www.selleckchem.com/products/unc8153.html Presented in this review are examples of the application of kinome analysis to highlight the utility of the technology to further our understanding of two key complex biological events of priority to the livestock industry host immune responses to infectious diseases and animal stress responses.
This review addresses the current state of this field.Dosage of immunosuppressive drugs after transplantation critically determines rejection and infection episodes. In this study, a global immune function assay was characterized among controls, dialysis-patients, and transplant-recipients to evaluate its utility for pharmacodynamic monitoring of immunosuppressive drugs and for predicting infections. Whole-blood samples were stimulated with anti-CD3/toll-like-receptor (TLR7/8)-agonist in the presence or absence of drugs and IFN-γ secretion was measured by ELISA. Additional stimulation-induced cytokines were characterized among T-, B-, and NK-cells using flow-cytometry. Cytokine-secretion was dominated by IFN-γ, and mainly observed in CD4, CD8, and NK-cells. Intra-assay variability was low (CV = 10.4 ± 6.2%), whereas variability over time was high, even in the absence of clinical events (CV = 65.0 ± 35.7%). Cyclosporine A, tacrolimus and steroids dose-dependently inhibited IFN-γ secretion, and reactivity was further reduced when calcineurin inhibitors were combined with steroids. Moreover, IFN-γ levels significantly differed between controls, dialysis-patients, and transplant-recipients, with lowest IFN-γ levels early after transplantation (p less then 0.001). However, a single test had limited ability to predict infectious episodes. In conclusion, the assay may have potential for basic pharmacodynamic characterization of immunosuppressive drugs and their combinations, and for assessing loss of global immunocompetence after transplantation, but its application to guide drug-dosing and to predict infectious on an individual basis is limited.Cancer is a significant medical issue, being one of the main causes of mortality around the world. The therapies for this pathology depend on the stage in which the cancer is found, but it is usually diagnosed at an advanced stage in which the treatment is chemotherapy. Platinum drugs are among the most commonly used in therapy, unfortunately, one of the main obstacles to this treatment is the development of chemoresistance, which is the ability of cancer cells to evade the effects of drugs. Although some molecular mechanisms involved in resistance to platinum drugs are described, elucidation is still required of others. Secretion of inflammatory mediators such as cytokines and chemokines, by tumor microenvironment components or tumor cells, show direct influence on proliferation, metastasis and progression of cancer and are related to chemoresistance and poor prognosis. In this review, the general mechanisms associated with resistance to platinum drugs, inflammation on cancer development and chemoresistance in various types of cancer will be approached with special emphasis on the current history of CC chemokines subfamily-mediated chemoresistance.Many functions of the immune system are impaired in neonates, allowing vulnerability to serious bacterial, viral and fungal infections which would otherwise not be pathogenic to mature individuals. This vulnerability is exacerbated in compromised newborns such as premature neonates and those who have undergone surgery or who require care in an intensive care unit. Higher susceptibility of preterm neonates to infections is associated with delayed immune system maturation, with deficiencies present in both the innate and adaptive immune components. Here, we review recent insights into early life immunity, and highlight features associated with compromised newborns, given the challenges of studying neonatal immunity in compromised neonates due to the transient nature of this period of life, and logistical and ethical obstacles posed by undertaking studies newborns and infants. Finally, we highlight how the unique immunological characteristics of the premature host play key roles in the pathogenesis of diseases that are unique to this population, including necrotizing enterocolitis and the associated sequalae of lung and brain injury.While mortality after acute sepsis has decreased, the long-term recovery for survivors is still poor, particularly those developing persistent inflammation, immunosuppression, and catabolism syndrome (PICS). While previously thought that activated neutrophils responding to the acute phase of sepsis migrate to the spleen to undergo cell death and contribute to immunosuppression, our data show a significant accumulation of distinct, yet functional, neutrophil populations in the spleen in a murine model of PICS. The exact role and function of neutrophils in this response is still unclear. The objective of our study was to better define the immune function of splenic neutrophils to determine if this could give insight into the pathogenesis of PICS. Using a murine model of cecal ligation and puncture (CLP), which demonstrates all characteristics of PICS by 8 days, spleens were harvested, and neutrophils were identified by Ly6G and CD11b expression via flow cytometry. Nearly all splenic neutrophils expressed CD54, uring PICS is related to extramedullary myelopoiesis, leading to the production of immature neutrophils. While not suppressor cells, the majority have greater chemotactic function but less inflammatory responsiveness, which may contribute to the immunosuppression seen in PICS. Attention to these distinct neutrophil populations after septic or other systemic inflammatory responses is therefore critical to understanding the mechanisms of PICS.Within human health research, the remarkable utility of kinase inhibitors as therapeutics has motivated efforts to understand biology at the level of global cellular kinase activity (the kinome). In contrast, the diminished potential for using kinase inhibitors in food animals has dampened efforts to translate this research approach to livestock species. This, in our opinion, was a lost opportunity for livestock researchers given the unique potential of kinome analysis to offer insight into complex biology. To remedy this situation, our lab developed user-friendly, cost-effective approaches for kinome analysis that can be readily incorporated into most research programs but with a specific priority to enable the technology to livestock researchers. These contributions include the development of custom software programs for the creation of species-specific kinome arrays as well as comprehensive deconvolution and analysis of kinome array data. https://www.selleckchem.com/products/unc8153.html Presented in this review are examples of the application of kinome analysis to highlight the utility of the technology to further our understanding of two key complex biological events of priority to the livestock industry host immune responses to infectious diseases and animal stress responses.0 Reacties 0 aandelen 20 Views 0 voorbeeldPlease log in to like, share and comment! -
Background Because treatment options for coronavirus disease 2019 (COVID-19) are very limited, the use of convalescent plasma has bee explored. Case presentation and treatment A male centenarian with cough and dyspnea for 2 months was diagnosed with COVID-19. Without effective treatments and with the increased risks of antiviral therapy for the elderly, this patient was given convalescent plasma. The viral load, complete blood count, inflammatory indicators, vital signs, and clinical symptoms were observed before and after COVID-19 convalescent plasma transfusion. Results After convalescent plasma transfusion, significant improvement was observed on laboratory indicators and clinical symptoms of the patient. Concurrently, SARS-CoV-2 viral load decreased sharply after the first transfusion (from 2.55 × 104 to 1.39 × 103 copies/mL) and became undetectable after the second transfusion. Conclusions With the substantial increase of COVID-19 in recent months,treatment for elderly patients has become restricted in some countries. The successful treatment of this 100-year-old patient using convalescent plasma suggests that we should consider adding convalescent plasma in th management of the elderly.Objective To show that statistical techniques allow for obtaining a reduced number of four-hour glucose profiles that can identify any glucose behavior in patients with type1 diabetes mellitus. Material and methods A retrospective study of 10 patients with type1 diabetes mellitus was conducted using data collected by continuous glucose monitoring. A data mining technique based on decision trees called CHAID (Chi-square Automatic Interaction Detection) was used to classify glucose profiles into groups using two decision criteria. These were 1, the seven days of the week, and 2, different time slots, the day being divided into six sections of four hours each. Clustering was performed according to the glucose levels recorded using the statistically significant differences found. Results Significant differences (P less then .05) and dependencies were seen between the glucose profiles classified depending on the independent variables 'day of the week' and 'time slot'. The relationships found were different for each patient, showing the need for individualized studies. https://www.selleckchem.com/products/medica16.html Conclusions The results obtained will facilitate mathematical modeling of glucose, and can be used to develop an individualized classifier for each patient that categorizes glucose profiles based on the day of the week and time slot variables. Using this classifier, it will be possible to predict the glucose levels of the patient knowing on which day of the week and in which time slot he/she is, leading to more precise models. Healthcare professionals will also be able to improve patient habits and therapies.Background Excessive screen time (ST) and lower physical activity (PA) patterns have been reported to have an impact on cardiometabolic risk (CMR); however, their impact on physical fitness needs in-depth study. Objective To determine the association between lifestyle (i.e. ST and PA after school) with physical fitness related to health and CMR (i.e. abdominal obesity and hypertension) in Chilean schoolchildren. Methods The sample for this cross-sectional study comprised 263 girls (11.87±0.83 years) and 319 boys (12.02±0.88 years). The body mass index (BMI), waist circumference (WC), waist to height ratio (WtHR), CMR (WtHR≥0.5), body fat (BF), systolic (SBP) and diastolic blood pressure (DBP), physical fitness, ST (h/day), and PA after school (h/week) were evaluated. Results Schoolchildren with good lifestyle had a lower BMI, WC, and WtHR (P less then 0.001) as well as a better VO2max (P less then 0.001) and standing long jump test (SLJ) (P=0.002). The schoolchildren with bad lifestyle had the highest proportion of students with abdominal obesity (WtHR≥0.5) (30.6%, P=0.009) and hypertension. (40.9%, P less then 0.001). Likewise, PA after school (β; -0.02, P=0.002) and cardiorespiratory fitness (β; -0.02, P=0.002) adjusted by age and sex reported inverse associations with abdominal obesity (WtHR≥0.5). Likewise, ST presented a positive association with SBP (β; 0.14, P=0.030). Moreover, handgrip strength (β; -0.17, P=0.010) and SLJ (β; -0.05, P=0.023) reported inverse associations with SBP. Conclusion In schoolchildren, a bad lifestyle was associated with low physical fitness related to health and CMR (i.e. abdominal obesity and hypertension).Laryngeal botulinum toxin injection is an important treatment modality for spasmodic dysphonia and other laryngeal disorders. We sought to compare usage patterns of laryngeal botulinum toxin injections for voice disorders and to identify and quantify inefficiencies and barriers in providing this treatment. A 26 item survey was written and approved for distribution by the American Academy of Otolaryngology-Head and Neck Surgery and the National Spasmodic Dysphonia Association. It was distributed to Otolaryngologists who perform laryngeal botulinum toxin injections via the e-mail lists of the National Spasmodic Dysphonia Association provider database, American Academy of Otolaryngology-Head and Neck Surgery Voice Committee and the American Laryngological Association Neurolaryngology Study Group. There were 81 survey participants who collectively reported performing >1700 laryngeal botulinum toxin injections for voice disorders monthly (Mean = 21.5 pts/month). Regarding botulinum toxin A (BtxA) vial use, 54% of participants reported using multiple doses per vial for different patients during a single clinic day, while 14% reported using pharmacy predrawn single use aliquots. A combination of usage practices was reported by 7% of participants. Using an individual vial per patient and discarding the unused remainder was reported by 26% of participants with an associated annual cost in wasted BtxA of $84,300 per physician. There is wide variation in injection practices regarding management of BtxA vials and adherence to an individual vial per patient policy is associated with significant waste of health care resources. Alternative approaches to BtxA vial use could positively impact health care resource utilization.
Background Because treatment options for coronavirus disease 2019 (COVID-19) are very limited, the use of convalescent plasma has bee explored. Case presentation and treatment A male centenarian with cough and dyspnea for 2 months was diagnosed with COVID-19. Without effective treatments and with the increased risks of antiviral therapy for the elderly, this patient was given convalescent plasma. The viral load, complete blood count, inflammatory indicators, vital signs, and clinical symptoms were observed before and after COVID-19 convalescent plasma transfusion. Results After convalescent plasma transfusion, significant improvement was observed on laboratory indicators and clinical symptoms of the patient. Concurrently, SARS-CoV-2 viral load decreased sharply after the first transfusion (from 2.55 × 104 to 1.39 × 103 copies/mL) and became undetectable after the second transfusion. Conclusions With the substantial increase of COVID-19 in recent months,treatment for elderly patients has become restricted in some countries. The successful treatment of this 100-year-old patient using convalescent plasma suggests that we should consider adding convalescent plasma in th management of the elderly.Objective To show that statistical techniques allow for obtaining a reduced number of four-hour glucose profiles that can identify any glucose behavior in patients with type1 diabetes mellitus. Material and methods A retrospective study of 10 patients with type1 diabetes mellitus was conducted using data collected by continuous glucose monitoring. A data mining technique based on decision trees called CHAID (Chi-square Automatic Interaction Detection) was used to classify glucose profiles into groups using two decision criteria. These were 1, the seven days of the week, and 2, different time slots, the day being divided into six sections of four hours each. Clustering was performed according to the glucose levels recorded using the statistically significant differences found. Results Significant differences (P less then .05) and dependencies were seen between the glucose profiles classified depending on the independent variables 'day of the week' and 'time slot'. The relationships found were different for each patient, showing the need for individualized studies. https://www.selleckchem.com/products/medica16.html Conclusions The results obtained will facilitate mathematical modeling of glucose, and can be used to develop an individualized classifier for each patient that categorizes glucose profiles based on the day of the week and time slot variables. Using this classifier, it will be possible to predict the glucose levels of the patient knowing on which day of the week and in which time slot he/she is, leading to more precise models. Healthcare professionals will also be able to improve patient habits and therapies.Background Excessive screen time (ST) and lower physical activity (PA) patterns have been reported to have an impact on cardiometabolic risk (CMR); however, their impact on physical fitness needs in-depth study. Objective To determine the association between lifestyle (i.e. ST and PA after school) with physical fitness related to health and CMR (i.e. abdominal obesity and hypertension) in Chilean schoolchildren. Methods The sample for this cross-sectional study comprised 263 girls (11.87±0.83 years) and 319 boys (12.02±0.88 years). The body mass index (BMI), waist circumference (WC), waist to height ratio (WtHR), CMR (WtHR≥0.5), body fat (BF), systolic (SBP) and diastolic blood pressure (DBP), physical fitness, ST (h/day), and PA after school (h/week) were evaluated. Results Schoolchildren with good lifestyle had a lower BMI, WC, and WtHR (P less then 0.001) as well as a better VO2max (P less then 0.001) and standing long jump test (SLJ) (P=0.002). The schoolchildren with bad lifestyle had the highest proportion of students with abdominal obesity (WtHR≥0.5) (30.6%, P=0.009) and hypertension. (40.9%, P less then 0.001). Likewise, PA after school (β; -0.02, P=0.002) and cardiorespiratory fitness (β; -0.02, P=0.002) adjusted by age and sex reported inverse associations with abdominal obesity (WtHR≥0.5). Likewise, ST presented a positive association with SBP (β; 0.14, P=0.030). Moreover, handgrip strength (β; -0.17, P=0.010) and SLJ (β; -0.05, P=0.023) reported inverse associations with SBP. Conclusion In schoolchildren, a bad lifestyle was associated with low physical fitness related to health and CMR (i.e. abdominal obesity and hypertension).Laryngeal botulinum toxin injection is an important treatment modality for spasmodic dysphonia and other laryngeal disorders. We sought to compare usage patterns of laryngeal botulinum toxin injections for voice disorders and to identify and quantify inefficiencies and barriers in providing this treatment. A 26 item survey was written and approved for distribution by the American Academy of Otolaryngology-Head and Neck Surgery and the National Spasmodic Dysphonia Association. It was distributed to Otolaryngologists who perform laryngeal botulinum toxin injections via the e-mail lists of the National Spasmodic Dysphonia Association provider database, American Academy of Otolaryngology-Head and Neck Surgery Voice Committee and the American Laryngological Association Neurolaryngology Study Group. There were 81 survey participants who collectively reported performing >1700 laryngeal botulinum toxin injections for voice disorders monthly (Mean = 21.5 pts/month). Regarding botulinum toxin A (BtxA) vial use, 54% of participants reported using multiple doses per vial for different patients during a single clinic day, while 14% reported using pharmacy predrawn single use aliquots. A combination of usage practices was reported by 7% of participants. Using an individual vial per patient and discarding the unused remainder was reported by 26% of participants with an associated annual cost in wasted BtxA of $84,300 per physician. There is wide variation in injection practices regarding management of BtxA vials and adherence to an individual vial per patient policy is associated with significant waste of health care resources. Alternative approaches to BtxA vial use could positively impact health care resource utilization.0 Reacties 0 aandelen 21 Views 0 voorbeeld -
rich experimental basis for further anti-inflammation research of SWHD and sets the foundation for the development of a viral inflammation drug of traditional Chinese medicine. V.ETHNOPHARMACOLOGICAL RELEVANCE In this study, we compare the traditional medicinal knowledge and associated spiritual practices of healers with that of non-healers, to understand the relevance of healers in contemporary times. Given that Brunei Darussalam is well-known for its forest cover, the study also aims to understand the number of species collected from the forests, compared to those from human influenced habitats. MATERIALS AND METHODS A total of six specialist healers from Belait, Tutong, Dusun and Iban communities, and seven non-healers who had personal experience in self-medication using medicinal plants participated in the study. We identified the specialist healers through purposive sampling, on the basis of their reputation in the locality, while the non-healers were those experienced in self-medication, recommended by the healers. Informants were interviewed at their residences, followed by collection trips to the plant habitats. We classified the total recorded ailments into 15 disease categorm were the most targeted group with 67 species used. All medicinal uses with more than one citation were recorded from healers. Medicinal uses cited by healers also had greater correspondence with prior published reports from Brunei Darussalam. Healers believe that combining medicinal plants can produce a synergistic effect. Our study found that traditional knowledge related to healing practices is mostly transmitted vertically from parents to children. We also show that a ritual gift (pikaras) and invocations characteristic of the beliefs of the healers play an important role in facilitating healing. CONCLUSION Our study adds further evidence to prior studies that the medicinal plants and healing practices in the Kiudang region could be considered as disturbance pharmacopoeia. Healers with their knowledge on both therapeutic and spiritual aspects of healing continue to play an important role in local healthcare. Peroxisomes are highly dynamic subcellular compartments with important functions in lipid and ROS metabolism. Impaired peroxisomal function can lead to severe metabolic disorders with developmental defects and neurological abnormalities. Recently, a new group of disorders has been identified, characterised by defects in the membrane dynamics and division of peroxisomes rather than by loss of metabolic functions. However, the contribution of impaired peroxisome plasticity to the pathophysiology of those disorders is not well understood. Mitochondrial fission factor (MFF) is a key component of both the peroxisomal and mitochondrial division machinery. Patients with MFF deficiency present with developmental and neurological abnormalities. Peroxisomes (and mitochondria) in patient fibroblasts are highly elongated as a result of impaired organelle division. The majority of studies into MFF-deficiency have focused on mitochondrial dysfunction, but the contribution of peroxisomal alterations to the pathophysiology is largely unknown. Here, we show that MFF deficiency does not cause alterations to overall peroxisomal biochemical function. However, loss of MFF results in reduced import-competency of the peroxisomal compartment and leads to the accumulation of pre-peroxisomal membrane structures. We show that peroxisomes in MFF-deficient cells display alterations in peroxisomal redox state and intra-peroxisomal pH. Removal of elongated peroxisomes through induction of autophagic processes is not impaired. A mathematical model describing key processes involved in peroxisome dynamics sheds further light into the physical processes disturbed in MFF-deficient cells. https://www.selleckchem.com/products/didox.html The consequences of our findings for the pathophysiology of MFF-deficiency and related disorders with impaired peroxisome plasticity are discussed. V.Cardiotoxicity is a highly relevant, because often life-threatening, adverse effect of doxorubicin (Doxo)-based anticancer therapy. Here, we investigated the Doxo-response of cardiovascular stem/progenitor cells employing a mouse embryonic stem cell (mESC)-based in vitro differentiation model. Endothelial progenitor cells revealed a pronounced Doxo sensitivity as compared to mESC, differentiated endothelial-like (EC), and cardiomyocyte-like cells (CM) and CM progenitors, which rests on the activation of senescence. Doxo treatment of EC progenitors altered protein expression of individual endothelial markers, actin cytoskeleton morphology, mRNA expression of genes related to mitochondrial functions, autophagy, apoptosis, and DNA repair as well as mitochondrial DNA content, respiration and ATP production in the surviving differentiated EC progeny. By contrast, LDL uptake, ATP-stimulated Ca2+ release, and cytokine-stimulated ICAM-1 expression remained unaffected by the anthracycline treatment. Thus, exposure of EC progenitors to Doxo elicits isolated and persistent dysfunctions in the surviving EC progeny. In conclusion, we suggest that Doxo-induced injury of EC progenitors adds to anthracycline-induced cardiotoxicity, making this cell-type a preferential target for pharmacoprotective and regenerative strategies. V.Although anaplastic lymphoma kinase (ALK) inhibitors have good clinical efficacy, the inevitable development of drug resistance is the most common obstacle to their clinical application. There is an urgent need to develop more effective and selective ALK inhibitors to overcome the problem of drug resistance. Here, we screened a series of ALK inhibitors and found that ZX-29 displayed potent cytotoxic activity against ALK rearrangement non-small cell lung cancer (NSCLC) NCI-H2228 cells. Then, we investigated the antitumor effects of ZX-29. We demonstrated that ZX-29 time- and dose-dependently inhibited the viability of NCI-H2228 cells, induced cell cycle arrest in the G1 phase, and then they subsequently progressed into cell death. The type of cell death induced by ZX-29 was apoptosis through endoplasmic reticulum (ER) stress. Interestingly, ZX-29 induced protective autophagy, and inhibiting autophagy could enhance the antitumor effect of ZX-29. Furthermore, ZX-29 suppressed tumor growth in a mouse xenograft model.
rich experimental basis for further anti-inflammation research of SWHD and sets the foundation for the development of a viral inflammation drug of traditional Chinese medicine. V.ETHNOPHARMACOLOGICAL RELEVANCE In this study, we compare the traditional medicinal knowledge and associated spiritual practices of healers with that of non-healers, to understand the relevance of healers in contemporary times. Given that Brunei Darussalam is well-known for its forest cover, the study also aims to understand the number of species collected from the forests, compared to those from human influenced habitats. MATERIALS AND METHODS A total of six specialist healers from Belait, Tutong, Dusun and Iban communities, and seven non-healers who had personal experience in self-medication using medicinal plants participated in the study. We identified the specialist healers through purposive sampling, on the basis of their reputation in the locality, while the non-healers were those experienced in self-medication, recommended by the healers. Informants were interviewed at their residences, followed by collection trips to the plant habitats. We classified the total recorded ailments into 15 disease categorm were the most targeted group with 67 species used. All medicinal uses with more than one citation were recorded from healers. Medicinal uses cited by healers also had greater correspondence with prior published reports from Brunei Darussalam. Healers believe that combining medicinal plants can produce a synergistic effect. Our study found that traditional knowledge related to healing practices is mostly transmitted vertically from parents to children. We also show that a ritual gift (pikaras) and invocations characteristic of the beliefs of the healers play an important role in facilitating healing. CONCLUSION Our study adds further evidence to prior studies that the medicinal plants and healing practices in the Kiudang region could be considered as disturbance pharmacopoeia. Healers with their knowledge on both therapeutic and spiritual aspects of healing continue to play an important role in local healthcare. Peroxisomes are highly dynamic subcellular compartments with important functions in lipid and ROS metabolism. Impaired peroxisomal function can lead to severe metabolic disorders with developmental defects and neurological abnormalities. Recently, a new group of disorders has been identified, characterised by defects in the membrane dynamics and division of peroxisomes rather than by loss of metabolic functions. However, the contribution of impaired peroxisome plasticity to the pathophysiology of those disorders is not well understood. Mitochondrial fission factor (MFF) is a key component of both the peroxisomal and mitochondrial division machinery. Patients with MFF deficiency present with developmental and neurological abnormalities. Peroxisomes (and mitochondria) in patient fibroblasts are highly elongated as a result of impaired organelle division. The majority of studies into MFF-deficiency have focused on mitochondrial dysfunction, but the contribution of peroxisomal alterations to the pathophysiology is largely unknown. Here, we show that MFF deficiency does not cause alterations to overall peroxisomal biochemical function. However, loss of MFF results in reduced import-competency of the peroxisomal compartment and leads to the accumulation of pre-peroxisomal membrane structures. We show that peroxisomes in MFF-deficient cells display alterations in peroxisomal redox state and intra-peroxisomal pH. Removal of elongated peroxisomes through induction of autophagic processes is not impaired. A mathematical model describing key processes involved in peroxisome dynamics sheds further light into the physical processes disturbed in MFF-deficient cells. https://www.selleckchem.com/products/didox.html The consequences of our findings for the pathophysiology of MFF-deficiency and related disorders with impaired peroxisome plasticity are discussed. V.Cardiotoxicity is a highly relevant, because often life-threatening, adverse effect of doxorubicin (Doxo)-based anticancer therapy. Here, we investigated the Doxo-response of cardiovascular stem/progenitor cells employing a mouse embryonic stem cell (mESC)-based in vitro differentiation model. Endothelial progenitor cells revealed a pronounced Doxo sensitivity as compared to mESC, differentiated endothelial-like (EC), and cardiomyocyte-like cells (CM) and CM progenitors, which rests on the activation of senescence. Doxo treatment of EC progenitors altered protein expression of individual endothelial markers, actin cytoskeleton morphology, mRNA expression of genes related to mitochondrial functions, autophagy, apoptosis, and DNA repair as well as mitochondrial DNA content, respiration and ATP production in the surviving differentiated EC progeny. By contrast, LDL uptake, ATP-stimulated Ca2+ release, and cytokine-stimulated ICAM-1 expression remained unaffected by the anthracycline treatment. Thus, exposure of EC progenitors to Doxo elicits isolated and persistent dysfunctions in the surviving EC progeny. In conclusion, we suggest that Doxo-induced injury of EC progenitors adds to anthracycline-induced cardiotoxicity, making this cell-type a preferential target for pharmacoprotective and regenerative strategies. V.Although anaplastic lymphoma kinase (ALK) inhibitors have good clinical efficacy, the inevitable development of drug resistance is the most common obstacle to their clinical application. There is an urgent need to develop more effective and selective ALK inhibitors to overcome the problem of drug resistance. Here, we screened a series of ALK inhibitors and found that ZX-29 displayed potent cytotoxic activity against ALK rearrangement non-small cell lung cancer (NSCLC) NCI-H2228 cells. Then, we investigated the antitumor effects of ZX-29. We demonstrated that ZX-29 time- and dose-dependently inhibited the viability of NCI-H2228 cells, induced cell cycle arrest in the G1 phase, and then they subsequently progressed into cell death. The type of cell death induced by ZX-29 was apoptosis through endoplasmic reticulum (ER) stress. Interestingly, ZX-29 induced protective autophagy, and inhibiting autophagy could enhance the antitumor effect of ZX-29. Furthermore, ZX-29 suppressed tumor growth in a mouse xenograft model.0 Reacties 0 aandelen 28 Views 0 voorbeeld -
In the data analysis, Crude Odds Ratios (OR) and Adjusted Odds Ratios (AOR) were calculated through a multivariate analysis through binary and multinomial regression. Results A linear relationship was observed between the highest BMI figures and the reduction of the probability of starting skin-to-skin contact (AOR for obesity type III of 0.51 [95% CI 0.32, 0.83]), breastfeeding in the first hour (AOR for obesity type III of 0.58 [95% CI 0.36, 0.94]), and exclusive breastfeeding to hospital discharge (AOR for obesity type III of 0.57 [95% CI 0.35, 0.94]), as compared to women with normoweight. Conclusions Women with higher BMI are less likely to develop successful breastfeeding than women with normoweight.Background The Lumbar sagittal parameters might be related to modic changes (MCs). However, studies on this topic have rarely been reported. The aim of this study was to identify the relationships between the lumbar sagittal parameters and the development of MCs. Methods The lumbar sagittal parameters of 321 patients with chronic low **** pain from May 2016 to August 2018 were measured on X-ray by using Surgimap surgical planning software. Univariable analyses were used to test the potential variables of interest. Logistic regression models were then performed for the significant parameters to identify the independent factors associated with the development of MCs. Results More patients in the MCs group were older with more number of female than in the disc degeneration group (p less then 0.05). In the univariate analysis, significant differences were detected for the parameters of lumbar lordosis, sacral slope, intervertebral height index, endplate concave angle, and intervertebral angle only at the L5/S1 level between the two groups. The results of logistic regression analysis showed that a smaller intervertebral height index was positively associated with the development of MCs at the level of L3/4 (p less then 0.05). However, the positive role of gender was only for MCs at the L5/S1 level (p less then 0.05). Conclusions The results of this study revealed that there were negative relationships between the lumbar sagittal parameters and MCs. Furthermore, being female and having a narrow intervertebral space were the independent risk factors for the development of MCs at the corresponding lumbar levels. Interestingly, body mass index might be not associated with MCs for the Chinese population.Background We sought to review qualitative evidence on how smokers in different socioeconomic groups engage with non-combustible nicotine products (NCNP), including electronic cigarettes and nicotine replacement therapies, in order to provide insight into how these products might impact on smoking inequalities. Methods We searched ten electronic databases in February 2017 using terms relating to NCNP and socioeconomic status. We included qualitative studies that were published since 1980 and were available in English. We used guidelines adapted from the Critical Appraisal Skills Programme for appraising qualitative research. Results The review only identified studies exploring the attitudes of socioeconomically disadvantaged smokers towards NCNP for harm reduction or cessation purposes (i.e. we did not identify any relevant studies of more advantaged socioeconomic groups). Using a lines-of-argument meta-ethnographic approach, we identified a predominantly pessimistic attitude to NCNP for harm reduction or cessation of smoking due to wider circumstances of socioeconomic disadvantage; lack of a perceived advantage of alternative products over smoking; and a perceived lack of information about relative harms of NCNP compared to smoking. Optimistic findings, although fewer, suggested the potential of NCNP being taken up among smokers experiencing socioeconomic disadvantage. Conclusions Overall, our review highlights the importance of considering the social, cultural and economic circumstances that influence experiences of smoking and of alternative product use.Background The benefits of physical activity (PA) have been well documented, and the worksite is a promising setting for PA promotion. The aims of this study were as follows 1. https://www.selleckchem.com/products/vx-561.html To evaluate the effect of a group-based worksite intervention on PA and health-related outcomes by using pedometers. 2. To examine the associations between the change in vigorous physical activity (VPA)/moderate physical activity (MPA)/walking and health related outcomes. Methods A total of 398 participants (221 in the intervention group (IG) and 177 in the control group (CG)) from 17 worksites were recruited for a prospective self-controlled trial of a worksite physical activity intervention program in China. In the IG, a pedometer was utilized to self-monitor the PA, together with group competition, goal setting, and other incentives. No intervention was applied to the CG. Physical activity, sedentary behavior, and health-related outcomes were measured at baseline and immediately after the 100-day period intervention. Results A totald intervention to promote PA. Registration This study was prospectively registered in the Chinese Clinical Trial Registry. Trial registration number ChiCTR-1,800,015,529. Date of registration April 5, 2018.Background Surgical site infections (SSIs) are common complications after colorectal surgery. Oral non-absorbable antibiotic prophylaxis (OAP) can be administered preoperatively to reduce the risk of SSIs. Its efficacy without simultaneous mechanical cleaning is unknown. Methods The Precaution trial was a double-blind, placebo-controlled randomized clinical trial conducted in six Dutch hospitals. Adult patients who underwent elective colorectal surgery were randomized to receive either a three-day course of preoperative OAP with tobramycin and colistin or placebo. The primary composite endpoint was the incidence of deep SSI or mortality within 30 days after surgery. Secondary endpoints included both infectious and non-infectious complications at 30 days and six months after surgery. Results The study was prematurely ended due to the loss of clinical equipoise. At that time, 39 patients had been randomized to active OAP and 39 to placebo, which reflected 8.1% of the initially pursued sample size. Nine (11.5%) patients developed the primary outcome, of whom four had been randomized to OAP (4/39; 10.
In the data analysis, Crude Odds Ratios (OR) and Adjusted Odds Ratios (AOR) were calculated through a multivariate analysis through binary and multinomial regression. Results A linear relationship was observed between the highest BMI figures and the reduction of the probability of starting skin-to-skin contact (AOR for obesity type III of 0.51 [95% CI 0.32, 0.83]), breastfeeding in the first hour (AOR for obesity type III of 0.58 [95% CI 0.36, 0.94]), and exclusive breastfeeding to hospital discharge (AOR for obesity type III of 0.57 [95% CI 0.35, 0.94]), as compared to women with normoweight. Conclusions Women with higher BMI are less likely to develop successful breastfeeding than women with normoweight.Background The Lumbar sagittal parameters might be related to modic changes (MCs). However, studies on this topic have rarely been reported. The aim of this study was to identify the relationships between the lumbar sagittal parameters and the development of MCs. Methods The lumbar sagittal parameters of 321 patients with chronic low back pain from May 2016 to August 2018 were measured on X-ray by using Surgimap surgical planning software. Univariable analyses were used to test the potential variables of interest. Logistic regression models were then performed for the significant parameters to identify the independent factors associated with the development of MCs. Results More patients in the MCs group were older with more number of female than in the disc degeneration group (p less then 0.05). In the univariate analysis, significant differences were detected for the parameters of lumbar lordosis, sacral slope, intervertebral height index, endplate concave angle, and intervertebral angle only at the L5/S1 level between the two groups. The results of logistic regression analysis showed that a smaller intervertebral height index was positively associated with the development of MCs at the level of L3/4 (p less then 0.05). However, the positive role of gender was only for MCs at the L5/S1 level (p less then 0.05). Conclusions The results of this study revealed that there were negative relationships between the lumbar sagittal parameters and MCs. Furthermore, being female and having a narrow intervertebral space were the independent risk factors for the development of MCs at the corresponding lumbar levels. Interestingly, body mass index might be not associated with MCs for the Chinese population.Background We sought to review qualitative evidence on how smokers in different socioeconomic groups engage with non-combustible nicotine products (NCNP), including electronic cigarettes and nicotine replacement therapies, in order to provide insight into how these products might impact on smoking inequalities. Methods We searched ten electronic databases in February 2017 using terms relating to NCNP and socioeconomic status. We included qualitative studies that were published since 1980 and were available in English. We used guidelines adapted from the Critical Appraisal Skills Programme for appraising qualitative research. Results The review only identified studies exploring the attitudes of socioeconomically disadvantaged smokers towards NCNP for harm reduction or cessation purposes (i.e. we did not identify any relevant studies of more advantaged socioeconomic groups). Using a lines-of-argument meta-ethnographic approach, we identified a predominantly pessimistic attitude to NCNP for harm reduction or cessation of smoking due to wider circumstances of socioeconomic disadvantage; lack of a perceived advantage of alternative products over smoking; and a perceived lack of information about relative harms of NCNP compared to smoking. Optimistic findings, although fewer, suggested the potential of NCNP being taken up among smokers experiencing socioeconomic disadvantage. Conclusions Overall, our review highlights the importance of considering the social, cultural and economic circumstances that influence experiences of smoking and of alternative product use.Background The benefits of physical activity (PA) have been well documented, and the worksite is a promising setting for PA promotion. The aims of this study were as follows 1. https://www.selleckchem.com/products/vx-561.html To evaluate the effect of a group-based worksite intervention on PA and health-related outcomes by using pedometers. 2. To examine the associations between the change in vigorous physical activity (VPA)/moderate physical activity (MPA)/walking and health related outcomes. Methods A total of 398 participants (221 in the intervention group (IG) and 177 in the control group (CG)) from 17 worksites were recruited for a prospective self-controlled trial of a worksite physical activity intervention program in China. In the IG, a pedometer was utilized to self-monitor the PA, together with group competition, goal setting, and other incentives. No intervention was applied to the CG. Physical activity, sedentary behavior, and health-related outcomes were measured at baseline and immediately after the 100-day period intervention. Results A totald intervention to promote PA. Registration This study was prospectively registered in the Chinese Clinical Trial Registry. Trial registration number ChiCTR-1,800,015,529. Date of registration April 5, 2018.Background Surgical site infections (SSIs) are common complications after colorectal surgery. Oral non-absorbable antibiotic prophylaxis (OAP) can be administered preoperatively to reduce the risk of SSIs. Its efficacy without simultaneous mechanical cleaning is unknown. Methods The Precaution trial was a double-blind, placebo-controlled randomized clinical trial conducted in six Dutch hospitals. Adult patients who underwent elective colorectal surgery were randomized to receive either a three-day course of preoperative OAP with tobramycin and colistin or placebo. The primary composite endpoint was the incidence of deep SSI or mortality within 30 days after surgery. Secondary endpoints included both infectious and non-infectious complications at 30 days and six months after surgery. Results The study was prematurely ended due to the loss of clinical equipoise. At that time, 39 patients had been randomized to active OAP and 39 to placebo, which reflected 8.1% of the initially pursued sample size. Nine (11.5%) patients developed the primary outcome, of whom four had been randomized to OAP (4/39; 10.0 Reacties 0 aandelen 26 Views 0 voorbeeld -
In the data analysis, Crude Odds Ratios (OR) and Adjusted Odds Ratios (AOR) were calculated through a multivariate analysis through binary and multinomial regression. Results A linear relationship was observed between the highest BMI figures and the reduction of the probability of starting skin-to-skin contact (AOR for obesity type III of 0.51 [95% CI 0.32, 0.83]), breastfeeding in the first hour (AOR for obesity type III of 0.58 [95% CI 0.36, 0.94]), and exclusive breastfeeding to hospital discharge (AOR for obesity type III of 0.57 [95% CI 0.35, 0.94]), as compared to women with normoweight. Conclusions Women with higher BMI are less likely to develop successful breastfeeding than women with normoweight.Background The Lumbar sagittal parameters might be related to modic changes (MCs). However, studies on this topic have rarely been reported. The aim of this study was to identify the relationships between the lumbar sagittal parameters and the development of MCs. Methods The lumbar sagittal parameters of 321 patients with chronic low **** pain from May 2016 to August 2018 were measured on X-ray by using Surgimap surgical planning software. Univariable analyses were used to test the potential variables of interest. Logistic regression models were then performed for the significant parameters to identify the independent factors associated with the development of MCs. Results More patients in the MCs group were older with more number of female than in the disc degeneration group (p less then 0.05). In the univariate analysis, significant differences were detected for the parameters of lumbar lordosis, sacral slope, intervertebral height index, endplate concave angle, and intervertebral angle only at the L5/S1 level between the two groups. The results of logistic regression analysis showed that a smaller intervertebral height index was positively associated with the development of MCs at the level of L3/4 (p less then 0.05). However, the positive role of gender was only for MCs at the L5/S1 level (p less then 0.05). Conclusions The results of this study revealed that there were negative relationships between the lumbar sagittal parameters and MCs. Furthermore, being female and having a narrow intervertebral space were the independent risk factors for the development of MCs at the corresponding lumbar levels. Interestingly, body mass index might be not associated with MCs for the Chinese population.Background We sought to review qualitative evidence on how smokers in different socioeconomic groups engage with non-combustible nicotine products (NCNP), including electronic cigarettes and nicotine replacement therapies, in order to provide insight into how these products might impact on smoking inequalities. Methods We searched ten electronic databases in February 2017 using terms relating to NCNP and socioeconomic status. We included qualitative studies that were published since 1980 and were available in English. We used guidelines adapted from the Critical Appraisal Skills Programme for appraising qualitative research. Results The review only identified studies exploring the attitudes of socioeconomically disadvantaged smokers towards NCNP for harm reduction or cessation purposes (i.e. we did not identify any relevant studies of more advantaged socioeconomic groups). Using a lines-of-argument meta-ethnographic approach, we identified a predominantly pessimistic attitude to NCNP for harm reduction or cessation of smoking due to wider circumstances of socioeconomic disadvantage; lack of a perceived advantage of alternative products over smoking; and a perceived lack of information about relative harms of NCNP compared to smoking. Optimistic findings, although fewer, suggested the potential of NCNP being taken up among smokers experiencing socioeconomic disadvantage. Conclusions Overall, our review highlights the importance of considering the social, cultural and economic circumstances that influence experiences of smoking and of alternative product use.Background The benefits of physical activity (PA) have been well documented, and the worksite is a promising setting for PA promotion. The aims of this study were as follows 1. https://www.selleckchem.com/products/vx-561.html To evaluate the effect of a group-based worksite intervention on PA and health-related outcomes by using pedometers. 2. To examine the associations between the change in vigorous physical activity (VPA)/moderate physical activity (MPA)/walking and health related outcomes. Methods A total of 398 participants (221 in the intervention group (IG) and 177 in the control group (CG)) from 17 worksites were recruited for a prospective self-controlled trial of a worksite physical activity intervention program in China. In the IG, a pedometer was utilized to self-monitor the PA, together with group competition, goal setting, and other incentives. No intervention was applied to the CG. Physical activity, sedentary behavior, and health-related outcomes were measured at baseline and immediately after the 100-day period intervention. Results A totald intervention to promote PA. Registration This study was prospectively registered in the Chinese Clinical Trial Registry. Trial registration number ChiCTR-1,800,015,529. Date of registration April 5, 2018.Background Surgical site infections (SSIs) are common complications after colorectal surgery. Oral non-absorbable antibiotic prophylaxis (OAP) can be administered preoperatively to reduce the risk of SSIs. Its efficacy without simultaneous mechanical cleaning is unknown. Methods The Precaution trial was a double-blind, placebo-controlled randomized clinical trial conducted in six Dutch hospitals. Adult patients who underwent elective colorectal surgery were randomized to receive either a three-day course of preoperative OAP with tobramycin and colistin or placebo. The primary composite endpoint was the incidence of deep SSI or mortality within 30 days after surgery. Secondary endpoints included both infectious and non-infectious complications at 30 days and six months after surgery. Results The study was prematurely ended due to the loss of clinical equipoise. At that time, 39 patients had been randomized to active OAP and 39 to placebo, which reflected 8.1% of the initially pursued sample size. Nine (11.5%) patients developed the primary outcome, of whom four had been randomized to OAP (4/39; 10.
In the data analysis, Crude Odds Ratios (OR) and Adjusted Odds Ratios (AOR) were calculated through a multivariate analysis through binary and multinomial regression. Results A linear relationship was observed between the highest BMI figures and the reduction of the probability of starting skin-to-skin contact (AOR for obesity type III of 0.51 [95% CI 0.32, 0.83]), breastfeeding in the first hour (AOR for obesity type III of 0.58 [95% CI 0.36, 0.94]), and exclusive breastfeeding to hospital discharge (AOR for obesity type III of 0.57 [95% CI 0.35, 0.94]), as compared to women with normoweight. Conclusions Women with higher BMI are less likely to develop successful breastfeeding than women with normoweight.Background The Lumbar sagittal parameters might be related to modic changes (MCs). However, studies on this topic have rarely been reported. The aim of this study was to identify the relationships between the lumbar sagittal parameters and the development of MCs. Methods The lumbar sagittal parameters of 321 patients with chronic low back pain from May 2016 to August 2018 were measured on X-ray by using Surgimap surgical planning software. Univariable analyses were used to test the potential variables of interest. Logistic regression models were then performed for the significant parameters to identify the independent factors associated with the development of MCs. Results More patients in the MCs group were older with more number of female than in the disc degeneration group (p less then 0.05). In the univariate analysis, significant differences were detected for the parameters of lumbar lordosis, sacral slope, intervertebral height index, endplate concave angle, and intervertebral angle only at the L5/S1 level between the two groups. The results of logistic regression analysis showed that a smaller intervertebral height index was positively associated with the development of MCs at the level of L3/4 (p less then 0.05). However, the positive role of gender was only for MCs at the L5/S1 level (p less then 0.05). Conclusions The results of this study revealed that there were negative relationships between the lumbar sagittal parameters and MCs. Furthermore, being female and having a narrow intervertebral space were the independent risk factors for the development of MCs at the corresponding lumbar levels. Interestingly, body mass index might be not associated with MCs for the Chinese population.Background We sought to review qualitative evidence on how smokers in different socioeconomic groups engage with non-combustible nicotine products (NCNP), including electronic cigarettes and nicotine replacement therapies, in order to provide insight into how these products might impact on smoking inequalities. Methods We searched ten electronic databases in February 2017 using terms relating to NCNP and socioeconomic status. We included qualitative studies that were published since 1980 and were available in English. We used guidelines adapted from the Critical Appraisal Skills Programme for appraising qualitative research. Results The review only identified studies exploring the attitudes of socioeconomically disadvantaged smokers towards NCNP for harm reduction or cessation purposes (i.e. we did not identify any relevant studies of more advantaged socioeconomic groups). Using a lines-of-argument meta-ethnographic approach, we identified a predominantly pessimistic attitude to NCNP for harm reduction or cessation of smoking due to wider circumstances of socioeconomic disadvantage; lack of a perceived advantage of alternative products over smoking; and a perceived lack of information about relative harms of NCNP compared to smoking. Optimistic findings, although fewer, suggested the potential of NCNP being taken up among smokers experiencing socioeconomic disadvantage. Conclusions Overall, our review highlights the importance of considering the social, cultural and economic circumstances that influence experiences of smoking and of alternative product use.Background The benefits of physical activity (PA) have been well documented, and the worksite is a promising setting for PA promotion. The aims of this study were as follows 1. https://www.selleckchem.com/products/vx-561.html To evaluate the effect of a group-based worksite intervention on PA and health-related outcomes by using pedometers. 2. To examine the associations between the change in vigorous physical activity (VPA)/moderate physical activity (MPA)/walking and health related outcomes. Methods A total of 398 participants (221 in the intervention group (IG) and 177 in the control group (CG)) from 17 worksites were recruited for a prospective self-controlled trial of a worksite physical activity intervention program in China. In the IG, a pedometer was utilized to self-monitor the PA, together with group competition, goal setting, and other incentives. No intervention was applied to the CG. Physical activity, sedentary behavior, and health-related outcomes were measured at baseline and immediately after the 100-day period intervention. Results A totald intervention to promote PA. Registration This study was prospectively registered in the Chinese Clinical Trial Registry. Trial registration number ChiCTR-1,800,015,529. Date of registration April 5, 2018.Background Surgical site infections (SSIs) are common complications after colorectal surgery. Oral non-absorbable antibiotic prophylaxis (OAP) can be administered preoperatively to reduce the risk of SSIs. Its efficacy without simultaneous mechanical cleaning is unknown. Methods The Precaution trial was a double-blind, placebo-controlled randomized clinical trial conducted in six Dutch hospitals. Adult patients who underwent elective colorectal surgery were randomized to receive either a three-day course of preoperative OAP with tobramycin and colistin or placebo. The primary composite endpoint was the incidence of deep SSI or mortality within 30 days after surgery. Secondary endpoints included both infectious and non-infectious complications at 30 days and six months after surgery. Results The study was prematurely ended due to the loss of clinical equipoise. At that time, 39 patients had been randomized to active OAP and 39 to placebo, which reflected 8.1% of the initially pursued sample size. Nine (11.5%) patients developed the primary outcome, of whom four had been randomized to OAP (4/39; 10.0 Reacties 0 aandelen 28 Views 0 voorbeeld -
Background Bariatric surgery reduces cancer risk in populations with obesity. It is unclear if weight loss alone or metabolic changes related to bariatric surgery cause this effect. Objective We evaluated the relationship between surgical weight loss and serum biomarker changes with incident cancer in a bariatric surgery cohort. Setting Ten U.S. clinical facilities. Methods The Longitudinal Assessment of Bariatric Surgery 2 (LABS-2) is a prospective multicenter cohort (n = 2458, 79% female, mean age = 46). We evaluated weight and serum biomarkers, measured preoperatively and 1 year postoperatively, as predictors for incident cancer. Associations were determined using Cox proportional hazards models adjusting for weight loss, age, sex, education, and smoking history. Results Over 8759 person-years of follow-up, 82 patients reported new cancer diagnosis (936 per 100,000 person-years, 95% confidence interval [CI] 749-1156). Cancer risk was decreased by approximately 50% in participants with 20% to 34.9% total weight loss (TWL) compared with 50% when weight loss exceeds 20% TWL compared with patients with less then 20% TWL. Weight loss alone may not explain the observed risk reduction, as improvements in diabetes, leptin, and ghrelin were associated with decreased cancer risk.PhD prepared nurse scientists within healthcare systems are uniquely positioned to advance nursing science through research and evidence-based practice (EBP) initiatives due to their ability to closely collaborate with nurses and other healthcare professionals in the clinical setting. The purpose of this paper is threefold 1) to describe the roles and contributions of Nurse Scientists, from their perspectives, in four different health care systems in the Greater Philadelphia area, three of which are Magnet® designated hospitals; 2) to highlight organizational approaches to increase nursing research and EBP capacity; and 3) to explore strategies that Nurse Scientists used to overcome barriers to build nursing research capacity. Nurse Scientists employed in these healthcare systems share many of the same essential roles and contributions focused on developing nursing research and EBP initiatives through education and mentorship of clinical nurses, conduct and oversight of independent research, and dissemination activities. With supportive executive nurse leadership, the Nurse Scientists within each healthcare system employed different strategies to overcome barriers in building nursing research and EBP capacity. Nurse scientists within healthcare settings have potentially powerful positions to generate and apply new knowledge to guide nursing practice and improve outcomes.Aim To describe the occurrence of opioid and benzodiazepine withdrawal symptoms in a cohort of pediatric intensive care unit (PICU) patients, the characteristics of this group, and patterns of withdrawal scoring observed during medication weaning. Background Patients in the PICU are a complex and vulnerable population. Opioids and benzodiazepines are routinely administered in this setting. Providers must be equipped to recognize and assess symptoms of narcotic and benzodiazepine withdrawal. Methods A retrospective chart review was conducted to describe all patients admitted to the medical intensive care unit who received continuous infusions of morphine and midazolam during a one-year period. Patient demographics, diagnosis, and presence of co-morbidities were abstracted. The number of days on continuous infusions was measured, along with Withdrawal Assessment Tool-1 (WAT-1) scores and documented symptoms that could be associated with withdrawal. WAT-1 scoring ranges from 0 to 12, a WAT-1 score of 3 or higher is considered to indicate clinically significant withdrawal symptoms. Descriptive statistics were utilized to summarize demographic and clinical variables. Results Among 60 cases, patient ages ranged 5 weeks to 29 years (median 3.5 years). Eighty percent of patients had a primary respiratory diagnosis and 88.3% had one or more co-morbidities. Forty-four patients (73.3%) had symptoms consistent with withdrawal. https://www.selleckchem.com/products/gsk864.html Thirty-one percent of patients had a maximum WAT-1 score between 3 and 8. The majority of patients (55%) had a history of opioid and/or benzodiazepine exposure. Conclusions The information learned highlights the need for ongoing conversation and continued study of how best to assess and manage withdrawal syndrome in pediatric critical care environments.Introduction and objectives Cardiac device-related infections (CDRI) may be life-threatening and require early and accurate diagnosis. The aims of this study were to analyze the performance of positron emission tomography-computed tomography (PET/CT) in suspected CDRI, to assess changes to the initial diagnosis, and to identify a clinical subgroup deriving the greatest benefit from this imaging modality. Methods Retrospective study including patients evaluated by PET/CT for suspected CDRI from 2011 to 2018. We assessed PET/CT performance and the agreement between the initial, post-PET and definitive diagnoses. We also assessed changes in the diagnosis, depending on initial clinical suspicion, to identify patients deriving the greatest benefit from PET/CT. Results We included 44 patients. The prevalence of endocarditis was 57%. The sensitivity and specificity of PET/CT for the diagnosis of infective endocarditis were 0.84 and 0.95, respectively. Post-PET diagnosis improved the initial diagnosis by 45%. PET/CT correctly reclassified 57% of patients with initial suspicion of generator pocket infection by detecting lead infection. Conclusions PET/CT showed high diagnostic performance in suspected of CDRI and significantly improved the conventional diagnostic approach, especially in patients with initial suspicion of focal infection.Opioids are widely used in clinical practice because of their strong analgesia. However, their use is restricted by such factors as tolerance and opioid-induced hyperalgesia (OIH), so it is critical to find ways to reduce the dosage of opioids to avoid the side effects. In this study, we demonstrated for the first time the regulatory role of A20 in morphine analgesia. By overexpressing and knocking down A20 in the spinal cord of ****, we found that A20 enhanced morphine analgesia rather than tolerance. Then, at the cellular level, different methods were used to confirm that A20 could not only strengthen the inhibition of cAMP induced by opioids drugs, but also affect μ opioid receptor (MOR) and ERK phosphorylation. In addition, we found that A20 interacted with MOR inhibitory protein β-arrestin2, which could be enhanced by MOR agonists. Furthermore, there was evidence that A20 could inhibit β-arrestin2 recruitment. Collectively, our results indicated that A20 in the spinal cord could enhance morphine analgesia and increase MOR function through β-arrestin2.
Background Bariatric surgery reduces cancer risk in populations with obesity. It is unclear if weight loss alone or metabolic changes related to bariatric surgery cause this effect. Objective We evaluated the relationship between surgical weight loss and serum biomarker changes with incident cancer in a bariatric surgery cohort. Setting Ten U.S. clinical facilities. Methods The Longitudinal Assessment of Bariatric Surgery 2 (LABS-2) is a prospective multicenter cohort (n = 2458, 79% female, mean age = 46). We evaluated weight and serum biomarkers, measured preoperatively and 1 year postoperatively, as predictors for incident cancer. Associations were determined using Cox proportional hazards models adjusting for weight loss, age, sex, education, and smoking history. Results Over 8759 person-years of follow-up, 82 patients reported new cancer diagnosis (936 per 100,000 person-years, 95% confidence interval [CI] 749-1156). Cancer risk was decreased by approximately 50% in participants with 20% to 34.9% total weight loss (TWL) compared with 50% when weight loss exceeds 20% TWL compared with patients with less then 20% TWL. Weight loss alone may not explain the observed risk reduction, as improvements in diabetes, leptin, and ghrelin were associated with decreased cancer risk.PhD prepared nurse scientists within healthcare systems are uniquely positioned to advance nursing science through research and evidence-based practice (EBP) initiatives due to their ability to closely collaborate with nurses and other healthcare professionals in the clinical setting. The purpose of this paper is threefold 1) to describe the roles and contributions of Nurse Scientists, from their perspectives, in four different health care systems in the Greater Philadelphia area, three of which are Magnet® designated hospitals; 2) to highlight organizational approaches to increase nursing research and EBP capacity; and 3) to explore strategies that Nurse Scientists used to overcome barriers to build nursing research capacity. Nurse Scientists employed in these healthcare systems share many of the same essential roles and contributions focused on developing nursing research and EBP initiatives through education and mentorship of clinical nurses, conduct and oversight of independent research, and dissemination activities. With supportive executive nurse leadership, the Nurse Scientists within each healthcare system employed different strategies to overcome barriers in building nursing research and EBP capacity. Nurse scientists within healthcare settings have potentially powerful positions to generate and apply new knowledge to guide nursing practice and improve outcomes.Aim To describe the occurrence of opioid and benzodiazepine withdrawal symptoms in a cohort of pediatric intensive care unit (PICU) patients, the characteristics of this group, and patterns of withdrawal scoring observed during medication weaning. Background Patients in the PICU are a complex and vulnerable population. Opioids and benzodiazepines are routinely administered in this setting. Providers must be equipped to recognize and assess symptoms of narcotic and benzodiazepine withdrawal. Methods A retrospective chart review was conducted to describe all patients admitted to the medical intensive care unit who received continuous infusions of morphine and midazolam during a one-year period. Patient demographics, diagnosis, and presence of co-morbidities were abstracted. The number of days on continuous infusions was measured, along with Withdrawal Assessment Tool-1 (WAT-1) scores and documented symptoms that could be associated with withdrawal. WAT-1 scoring ranges from 0 to 12, a WAT-1 score of 3 or higher is considered to indicate clinically significant withdrawal symptoms. Descriptive statistics were utilized to summarize demographic and clinical variables. Results Among 60 cases, patient ages ranged 5 weeks to 29 years (median 3.5 years). Eighty percent of patients had a primary respiratory diagnosis and 88.3% had one or more co-morbidities. Forty-four patients (73.3%) had symptoms consistent with withdrawal. https://www.selleckchem.com/products/gsk864.html Thirty-one percent of patients had a maximum WAT-1 score between 3 and 8. The majority of patients (55%) had a history of opioid and/or benzodiazepine exposure. Conclusions The information learned highlights the need for ongoing conversation and continued study of how best to assess and manage withdrawal syndrome in pediatric critical care environments.Introduction and objectives Cardiac device-related infections (CDRI) may be life-threatening and require early and accurate diagnosis. The aims of this study were to analyze the performance of positron emission tomography-computed tomography (PET/CT) in suspected CDRI, to assess changes to the initial diagnosis, and to identify a clinical subgroup deriving the greatest benefit from this imaging modality. Methods Retrospective study including patients evaluated by PET/CT for suspected CDRI from 2011 to 2018. We assessed PET/CT performance and the agreement between the initial, post-PET and definitive diagnoses. We also assessed changes in the diagnosis, depending on initial clinical suspicion, to identify patients deriving the greatest benefit from PET/CT. Results We included 44 patients. The prevalence of endocarditis was 57%. The sensitivity and specificity of PET/CT for the diagnosis of infective endocarditis were 0.84 and 0.95, respectively. Post-PET diagnosis improved the initial diagnosis by 45%. PET/CT correctly reclassified 57% of patients with initial suspicion of generator pocket infection by detecting lead infection. Conclusions PET/CT showed high diagnostic performance in suspected of CDRI and significantly improved the conventional diagnostic approach, especially in patients with initial suspicion of focal infection.Opioids are widely used in clinical practice because of their strong analgesia. However, their use is restricted by such factors as tolerance and opioid-induced hyperalgesia (OIH), so it is critical to find ways to reduce the dosage of opioids to avoid the side effects. In this study, we demonstrated for the first time the regulatory role of A20 in morphine analgesia. By overexpressing and knocking down A20 in the spinal cord of mice, we found that A20 enhanced morphine analgesia rather than tolerance. Then, at the cellular level, different methods were used to confirm that A20 could not only strengthen the inhibition of cAMP induced by opioids drugs, but also affect μ opioid receptor (MOR) and ERK phosphorylation. In addition, we found that A20 interacted with MOR inhibitory protein β-arrestin2, which could be enhanced by MOR agonists. Furthermore, there was evidence that A20 could inhibit β-arrestin2 recruitment. Collectively, our results indicated that A20 in the spinal cord could enhance morphine analgesia and increase MOR function through β-arrestin2.0 Reacties 0 aandelen 21 Views 0 voorbeeld -
Dual antiplatelet therapy (DAPT) is the cornerstone of medical therapy in patients undergoing percutaneous coronary intervention. DAPT decreases the risk for ischemic events, including stent related complication as e.g. stent thrombosis, but increases the risk of bleeding. Current guidelines endorse DAPT after PCI for 6 months in stable patients, and 12 months in patients presenting with acute coronary syndrome (ACS), but with further options to adapt DAPT duration according to the patient's risk profile for ischemic or bleeding complications [1].Background The MitraClip procedure requires transseptal access of the left atrium with a 24F guiding sheath. We evaluated invasively whether a MitraClip induced iatrogenic atrial septal defect (IASD) leads to development of a relevant interatrial shunt and right ventricular overload. Methods A total of 69 patients who underwent a MitraClip procedure due to a severe mitral valve regurgitation (MVR) were included in the observational, retrospective cohort study. All pressures were directly measured throughout the procedure. Cardiac index (CI), systemic (Qs) and pulmonary (Qp) flow were calculated using the Fick method. Results Successful MitraClip implantation increased CI (2.5 ± 0.62 vs 3.05 ± 0.77 L/min/m2 ; P less then .0001), whereas SVR (1491 ± 474 vs 997 ± 301 dyn s/cm5 ; P less then .0001), PVR (226 ± 121 vs 188 ± 96 dyn/s/cm5 ; P = .04), PCWP (23 ± 6.1 vs 20 ± 4.7 mm Hg; P = .0031), PA pressure (33.6 ± 7.2 vs 31.9 ± 6.6 mm Hg; P = .1437) and LA pressure (21.5 ± 5.4 vs 18.7 ± 4.9 mm Hg; P less then .0001) all decreased. The effect on LA pressure was further enhanced by guiding catheter retrieval (14.4 ± 4.6 mm Hg; P less then .0001). At the end of the procedure, Qp (6.033 ± 1.3 L/min) exceeded Qs (5.537 ± 1.3 L/min) by 0.496 L/min leading to a QpQs ratio of 1.09 (P = .007). After 6 months, echocardiography revealed no changes in RV diameter (42.96 ± 6.95 mm vs 43.81 ± 7.67 mm; P = .62) and TAPSE (17.13 ± 3.33 mm vs 17.36 ± 3.24 mm; P = .48). Conclusion Our data show that the MitraClip procedure does not induce a relevant interatrial shunt or right ventricular overload. In fact, future studies will have to show whether the IASD may even be beneficial in selected patient populations by left atrial volume and pressure relief.TNFα is largely regarded as a proinflammatory cytokine, but several recent researches demonstrated that TNFα could possess immunoregulatory roles with potential to suppress antitumor immunity. Chronic hepatitis B virus (HBV) infection is a major risk factor of hepatocellular carcinoma (HCC) and HBV-specific CD8 T cells could exert antitumor roles in HCC patients. Here, we found that HBV-specific CD8 T cells, both in the peripheral blood and in the tumor microenvironment, were more enriched with TNFα-expressing cells than IFNγ-expressing cells. Compared to IFNγ-expressing HBV-specific CD8 T cells, TNFα-expressing HBV-specific CD8 T cells presented lower expression of inhibitory checkpoint molecules, including PD-1, TIM-3, and CTLA-4. HBV-specific CD8 T cells could mediate the lysis of autologous primary tumor cells and the inhibition of TNFα could further elevate their cytotoxic capacity. Subsequently, we demonstrated that TNFα inhibition in HBV-specific CD8 T cells could significantly increase granzyme B (GZMB) and perforin 1 (PRF1) expression while having no effect toward granzyme A (GZMA) expression. The addition of exogenous TNFα at low levels had no consistent effect on the expression of GZMA, GZMB, and PRF1, but at higher levels, exogenous TNFα significantly reduced GZMA, GZMB, and PRF1 expression. Overall, these results suggested that TNFα-expressing cells likely presented a deleterious role in HCC but were enriched in HBV-specific CD8 T cells.Objective The gold standard for diagnosing anti-NMDAR encephalitis is demonstration of the antibody in CSF. Clinical diagnostic criteria have been proposed for when this is not available in a timely manner which is evaluated, in this study, for a psychiatric population. Methods This study retrospectively assessed the proposed criteria in patients presenting to psychiatric services for the first time with known anti-NMDAR antibody status. Antibody-positive cases were derived from the literature (conception to December 2019) and a state-wide (Queensland, Australia) cohort. Antibody-negative cases were derived from a service-wide (Metro South, Queensland, Australia) cohort of psychiatric cases which underwent antibody testing for routine organic screening. Sensitivity and specificity were calculated at 1 week following admission and the point of discharge. https://www.selleckchem.com/products/ono-ae3-208.html Results The proposed criteria were applied to 641 cases (500 antibody-positive and 141 antibody-negative), demonstrating a sensitivity which increased from around 19% after 1 week to 49% by the point of discharge. Specificity was 100% at both time points. The mean average time to become positive using the proposed criteria was 19.5 days compared to 34.9 days for return of antibody testing. Conclusions High specificity of the proposed criteria, seen in this study, suggests that cases which are positive can be considered for expedited commencement of treatment. However, if clinical suspicion is high despite criteria being negative, it is essential to test CSF for anti-NMDAR antibody.Aims of study Although electroconvulsive therapy (ECT)-related anxiety is experienced by a significant proportion of patients, it remains understudied. Our aim was to study the course of ECT-related anxiety during ECT. Methods Seventy-four patients with unipolar or bipolar depression, referred for ECT, were included. ECT-related anxiety was assessed the morning before each ECT session using the ECT-related Anxiety Questionnaire (ERAQ). Results Female patients reported more anxiety than men (F(1,64.6) = 3.95, P = 0.05). Patients with a psychotic depression were more anxious before the start of ECT (F(64.8) = 4.57, P = 0.04), but experienced a significant decrease in ECT-related anxiety (t(63.9) = -3.63, P = 0.0006), whereas patients with a non-psychotic depression remained stable on anxiety during their ECT course (t(63,9) = 0.76, P = 0.45). In addition, we found a significant correlation between the decrease of ECT-related anxiety and the decrease of depression-severity (r = 0.35; P = 0.04). Conclusion There are individual differences in ECT-related anxiety trajectories during ECT.
Dual antiplatelet therapy (DAPT) is the cornerstone of medical therapy in patients undergoing percutaneous coronary intervention. DAPT decreases the risk for ischemic events, including stent related complication as e.g. stent thrombosis, but increases the risk of bleeding. Current guidelines endorse DAPT after PCI for 6 months in stable patients, and 12 months in patients presenting with acute coronary syndrome (ACS), but with further options to adapt DAPT duration according to the patient's risk profile for ischemic or bleeding complications [1].Background The MitraClip procedure requires transseptal access of the left atrium with a 24F guiding sheath. We evaluated invasively whether a MitraClip induced iatrogenic atrial septal defect (IASD) leads to development of a relevant interatrial shunt and right ventricular overload. Methods A total of 69 patients who underwent a MitraClip procedure due to a severe mitral valve regurgitation (MVR) were included in the observational, retrospective cohort study. All pressures were directly measured throughout the procedure. Cardiac index (CI), systemic (Qs) and pulmonary (Qp) flow were calculated using the Fick method. Results Successful MitraClip implantation increased CI (2.5 ± 0.62 vs 3.05 ± 0.77 L/min/m2 ; P less then .0001), whereas SVR (1491 ± 474 vs 997 ± 301 dyn s/cm5 ; P less then .0001), PVR (226 ± 121 vs 188 ± 96 dyn/s/cm5 ; P = .04), PCWP (23 ± 6.1 vs 20 ± 4.7 mm Hg; P = .0031), PA pressure (33.6 ± 7.2 vs 31.9 ± 6.6 mm Hg; P = .1437) and LA pressure (21.5 ± 5.4 vs 18.7 ± 4.9 mm Hg; P less then .0001) all decreased. The effect on LA pressure was further enhanced by guiding catheter retrieval (14.4 ± 4.6 mm Hg; P less then .0001). At the end of the procedure, Qp (6.033 ± 1.3 L/min) exceeded Qs (5.537 ± 1.3 L/min) by 0.496 L/min leading to a QpQs ratio of 1.09 (P = .007). After 6 months, echocardiography revealed no changes in RV diameter (42.96 ± 6.95 mm vs 43.81 ± 7.67 mm; P = .62) and TAPSE (17.13 ± 3.33 mm vs 17.36 ± 3.24 mm; P = .48). Conclusion Our data show that the MitraClip procedure does not induce a relevant interatrial shunt or right ventricular overload. In fact, future studies will have to show whether the IASD may even be beneficial in selected patient populations by left atrial volume and pressure relief.TNFα is largely regarded as a proinflammatory cytokine, but several recent researches demonstrated that TNFα could possess immunoregulatory roles with potential to suppress antitumor immunity. Chronic hepatitis B virus (HBV) infection is a major risk factor of hepatocellular carcinoma (HCC) and HBV-specific CD8 T cells could exert antitumor roles in HCC patients. Here, we found that HBV-specific CD8 T cells, both in the peripheral blood and in the tumor microenvironment, were more enriched with TNFα-expressing cells than IFNγ-expressing cells. Compared to IFNγ-expressing HBV-specific CD8 T cells, TNFα-expressing HBV-specific CD8 T cells presented lower expression of inhibitory checkpoint molecules, including PD-1, TIM-3, and CTLA-4. HBV-specific CD8 T cells could mediate the lysis of autologous primary tumor cells and the inhibition of TNFα could further elevate their cytotoxic capacity. Subsequently, we demonstrated that TNFα inhibition in HBV-specific CD8 T cells could significantly increase granzyme B (GZMB) and perforin 1 (PRF1) expression while having no effect toward granzyme A (GZMA) expression. The addition of exogenous TNFα at low levels had no consistent effect on the expression of GZMA, GZMB, and PRF1, but at higher levels, exogenous TNFα significantly reduced GZMA, GZMB, and PRF1 expression. Overall, these results suggested that TNFα-expressing cells likely presented a deleterious role in HCC but were enriched in HBV-specific CD8 T cells.Objective The gold standard for diagnosing anti-NMDAR encephalitis is demonstration of the antibody in CSF. Clinical diagnostic criteria have been proposed for when this is not available in a timely manner which is evaluated, in this study, for a psychiatric population. Methods This study retrospectively assessed the proposed criteria in patients presenting to psychiatric services for the first time with known anti-NMDAR antibody status. Antibody-positive cases were derived from the literature (conception to December 2019) and a state-wide (Queensland, Australia) cohort. Antibody-negative cases were derived from a service-wide (Metro South, Queensland, Australia) cohort of psychiatric cases which underwent antibody testing for routine organic screening. Sensitivity and specificity were calculated at 1 week following admission and the point of discharge. https://www.selleckchem.com/products/ono-ae3-208.html Results The proposed criteria were applied to 641 cases (500 antibody-positive and 141 antibody-negative), demonstrating a sensitivity which increased from around 19% after 1 week to 49% by the point of discharge. Specificity was 100% at both time points. The mean average time to become positive using the proposed criteria was 19.5 days compared to 34.9 days for return of antibody testing. Conclusions High specificity of the proposed criteria, seen in this study, suggests that cases which are positive can be considered for expedited commencement of treatment. However, if clinical suspicion is high despite criteria being negative, it is essential to test CSF for anti-NMDAR antibody.Aims of study Although electroconvulsive therapy (ECT)-related anxiety is experienced by a significant proportion of patients, it remains understudied. Our aim was to study the course of ECT-related anxiety during ECT. Methods Seventy-four patients with unipolar or bipolar depression, referred for ECT, were included. ECT-related anxiety was assessed the morning before each ECT session using the ECT-related Anxiety Questionnaire (ERAQ). Results Female patients reported more anxiety than men (F(1,64.6) = 3.95, P = 0.05). Patients with a psychotic depression were more anxious before the start of ECT (F(64.8) = 4.57, P = 0.04), but experienced a significant decrease in ECT-related anxiety (t(63.9) = -3.63, P = 0.0006), whereas patients with a non-psychotic depression remained stable on anxiety during their ECT course (t(63,9) = 0.76, P = 0.45). In addition, we found a significant correlation between the decrease of ECT-related anxiety and the decrease of depression-severity (r = 0.35; P = 0.04). Conclusion There are individual differences in ECT-related anxiety trajectories during ECT.0 Reacties 0 aandelen 21 Views 0 voorbeeld -
Isotopologs are powerful tools for investigating biological systems. We report a biosynthetic-cascade synthesis of Trp isotopologs starting from indole, glycine, and formaldehyde using the enzymes l-threonine aldolase and an engineered β-subunit of tryptophan synthase. This modular route to Trp isotopologs is simple and inexpensive, enabling facile access to these compounds.The behavior of run-and-tumble nanoswimmers which can self-propel in two immiscible liquids such as water-oil systems and are able to cross the interface is investigated by dissipative particle dynamics. At the steady-state, the partition ratio (φ) of nanoswimmers between the two immiscible liquids is obtained, and it depends on the active force (Fa), run time (τ), and swimmer-solvent interactions. The partition ratio φ is found to grow generally with increasing Fa2τ. At sufficiently large Fa, it is surprising to find that hydrophilic nanoswimmers prefer to stay in the oil phase rather than in the water phase. The partition ratio is also influenced by the hydrophobicity of swimmers in the oil phase. Two simple models are proposed to describe the partition ratio, including a near-equilibrium model and a kinetic model. Surface accumulation appearing at an impenetrable interface is also observed at the fluid-fluid interface for small Fa but it vanishes for sufficiently large Fa.This work shows the application of carbon nanocapsules as carriers for sodium ibuprofen release. Hard templating was used to prepare spherical carbon nanocapsules (mean diameter and thick shell of 690 and 70 nm, respectively), exhibiting both micro and mesoporosity. For comparison purposes, a microporous commercial activated carbon and a home-made mesoporous CMK-3 were also studied. All carbons showed similar drug uptake, although microporous commercial carbon and nanocapsules showed higher uptake at low equilibrium concentration due to higher adsorption potential in micropores. Higher and faster release of sodium ibuprofen was observed for carbon nanocapsules at pH 1.8 and 7.4 for a starting load ca. 250 mg g-1. Subsequent loading of carbon nanocapsules by successive evaporation cycles led to a remarkable load of ca. 6010 mg g-1 thanks to sodium ibuprofen filling the internal void volume. In spite of the very high load a fast release was observed at pH 7.4, reaching a release of ca. 100% of the initial sodium ibuprofen load. However, a **** slower and lower release was observed at pH 1.8. Thus, the system developed has interesting features for oral drug administration thanks to low toxicity of porous carbon, low release in gastric medium and important release in intestinal medium.Solute-solvent interactions and in particular hydrogen bonding can significantly influence the appearance of vibrational spectra due to band shifts, intensity changes and band broadening. In VCD spectroscopy, solvation may also lead to sign changes and thus an overall drastic change in the spectral pattern. As the VCD spectral analysis relies heavily on the comparison with computed spectra, such solvent effects have to be accounted for in the calculations. For simple model systems with one stereocenter, we have previously shown for carboxylic acids and hydroxyl groups that considering solvation explicitly improves the match substantially. In the present study we evaluate if explicit solvation is always necessary and if larger, more complex molecules featuring several stereocenters show the same susceptibility to H-bonding induced spectral changes as the previously investigated model systems. We analyse the spectra of the diastereomeric pairs menthol/neomenthol and borneol/isoborneol and study both experimentally and computationally the influence of hydrogen bonding to dimethylsulfoxide-d6 (DMSO-d6) and acetonitrile-d3 (ACN-d3) on their VCD spectral signatures. Further chiral alcohols with tertiary hydroxyl group (terpinen-4-ol and cedrol) and more complex structures with multiple stereocenters (cholesterol) are investigated to show that solvent effects on the spectra become less pronounced. We related this to the increasing number of vibrational bands that are insensitive to solvation and thus overlap with actually affected modes. As a consequence, the analysis of the spectra does not require consideration of explicit solvation and in this respect becomes less complicated.Ebselen (EbSe), an organo-selenium compound with well-characterized toxicology and pharmacology, exhibited potent antibacterial activity against glutathione (GSH)-positive bacteria when combined with silver ions (Ag+). In this paper, the strong bactericidal activity of EbSe-Ag+ against multidrug-resistant (MDR) Acinetobacter baumannii has been confirmed, and its efficacy was mainly based on the inhibition of thioredoxin reductase (TrxR) activity and the depletion of the total GSH amount. Moreover, the therapeutic effect of EbSe-Ag+ on urinary tract infection was assessed in a mouse model induced with A. baumannii 0361# strain. The treatment with EbSe-Ag+ significantly reduced the bacterial load and expression levels of the pro-inflammatory cytokines interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ) in bladder lesions; meanwhile, the pathological experiment showed that A. baumannii-induced changes in EbSe-Ag+ treated **** were **** attenuated than that in the control group. Thus, all the results obtained here may lay the foundation for further analysis and development of EbSe-Ag+ as potential antibacterial agents for MDR A. baumannii-induced urinary tract infection treatment.In situ transmission electron microscopy characterization is a powerful method in investigating the growth mechanism of catalyst-induced semiconductor nanowires. https://www.selleckchem.com/products/spop-i-6lc.html By providing direct evidence on the crystal growth at the atomic level, a real-time in situ heating investigation was carried out on Au-catalyzed semiconductor nanowires.Narrowly dispersed, 10 micron-sized, liquid crystalline elastomer polymer actuators were first prepared via thiol-ene dispersion polymerization and then embedded and stretched in a polyvinyl alcohol film, followed by photopolymerization of the residual acrylate groups. Prolate micro spheroids in which the mesogens are aligned parallel to the long axis were obtained and showed reversible thermally driven actuation owing to nematic to isotropic transition of the liquid crystal molecules. The particles were also compressed to form disk-shaped oblate microactuators in which the mesogens are aligned perpendicular to the short axis, demonstrating that the reported method is a versatile method to fabricate liquid crystal elastomer microactuators with programmable properties.
Isotopologs are powerful tools for investigating biological systems. We report a biosynthetic-cascade synthesis of Trp isotopologs starting from indole, glycine, and formaldehyde using the enzymes l-threonine aldolase and an engineered β-subunit of tryptophan synthase. This modular route to Trp isotopologs is simple and inexpensive, enabling facile access to these compounds.The behavior of run-and-tumble nanoswimmers which can self-propel in two immiscible liquids such as water-oil systems and are able to cross the interface is investigated by dissipative particle dynamics. At the steady-state, the partition ratio (φ) of nanoswimmers between the two immiscible liquids is obtained, and it depends on the active force (Fa), run time (τ), and swimmer-solvent interactions. The partition ratio φ is found to grow generally with increasing Fa2τ. At sufficiently large Fa, it is surprising to find that hydrophilic nanoswimmers prefer to stay in the oil phase rather than in the water phase. The partition ratio is also influenced by the hydrophobicity of swimmers in the oil phase. Two simple models are proposed to describe the partition ratio, including a near-equilibrium model and a kinetic model. Surface accumulation appearing at an impenetrable interface is also observed at the fluid-fluid interface for small Fa but it vanishes for sufficiently large Fa.This work shows the application of carbon nanocapsules as carriers for sodium ibuprofen release. Hard templating was used to prepare spherical carbon nanocapsules (mean diameter and thick shell of 690 and 70 nm, respectively), exhibiting both micro and mesoporosity. For comparison purposes, a microporous commercial activated carbon and a home-made mesoporous CMK-3 were also studied. All carbons showed similar drug uptake, although microporous commercial carbon and nanocapsules showed higher uptake at low equilibrium concentration due to higher adsorption potential in micropores. Higher and faster release of sodium ibuprofen was observed for carbon nanocapsules at pH 1.8 and 7.4 for a starting load ca. 250 mg g-1. Subsequent loading of carbon nanocapsules by successive evaporation cycles led to a remarkable load of ca. 6010 mg g-1 thanks to sodium ibuprofen filling the internal void volume. In spite of the very high load a fast release was observed at pH 7.4, reaching a release of ca. 100% of the initial sodium ibuprofen load. However, a much slower and lower release was observed at pH 1.8. Thus, the system developed has interesting features for oral drug administration thanks to low toxicity of porous carbon, low release in gastric medium and important release in intestinal medium.Solute-solvent interactions and in particular hydrogen bonding can significantly influence the appearance of vibrational spectra due to band shifts, intensity changes and band broadening. In VCD spectroscopy, solvation may also lead to sign changes and thus an overall drastic change in the spectral pattern. As the VCD spectral analysis relies heavily on the comparison with computed spectra, such solvent effects have to be accounted for in the calculations. For simple model systems with one stereocenter, we have previously shown for carboxylic acids and hydroxyl groups that considering solvation explicitly improves the match substantially. In the present study we evaluate if explicit solvation is always necessary and if larger, more complex molecules featuring several stereocenters show the same susceptibility to H-bonding induced spectral changes as the previously investigated model systems. We analyse the spectra of the diastereomeric pairs menthol/neomenthol and borneol/isoborneol and study both experimentally and computationally the influence of hydrogen bonding to dimethylsulfoxide-d6 (DMSO-d6) and acetonitrile-d3 (ACN-d3) on their VCD spectral signatures. Further chiral alcohols with tertiary hydroxyl group (terpinen-4-ol and cedrol) and more complex structures with multiple stereocenters (cholesterol) are investigated to show that solvent effects on the spectra become less pronounced. We related this to the increasing number of vibrational bands that are insensitive to solvation and thus overlap with actually affected modes. As a consequence, the analysis of the spectra does not require consideration of explicit solvation and in this respect becomes less complicated.Ebselen (EbSe), an organo-selenium compound with well-characterized toxicology and pharmacology, exhibited potent antibacterial activity against glutathione (GSH)-positive bacteria when combined with silver ions (Ag+). In this paper, the strong bactericidal activity of EbSe-Ag+ against multidrug-resistant (MDR) Acinetobacter baumannii has been confirmed, and its efficacy was mainly based on the inhibition of thioredoxin reductase (TrxR) activity and the depletion of the total GSH amount. Moreover, the therapeutic effect of EbSe-Ag+ on urinary tract infection was assessed in a mouse model induced with A. baumannii 0361# strain. The treatment with EbSe-Ag+ significantly reduced the bacterial load and expression levels of the pro-inflammatory cytokines interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ) in bladder lesions; meanwhile, the pathological experiment showed that A. baumannii-induced changes in EbSe-Ag+ treated mice were much attenuated than that in the control group. Thus, all the results obtained here may lay the foundation for further analysis and development of EbSe-Ag+ as potential antibacterial agents for MDR A. baumannii-induced urinary tract infection treatment.In situ transmission electron microscopy characterization is a powerful method in investigating the growth mechanism of catalyst-induced semiconductor nanowires. https://www.selleckchem.com/products/spop-i-6lc.html By providing direct evidence on the crystal growth at the atomic level, a real-time in situ heating investigation was carried out on Au-catalyzed semiconductor nanowires.Narrowly dispersed, 10 micron-sized, liquid crystalline elastomer polymer actuators were first prepared via thiol-ene dispersion polymerization and then embedded and stretched in a polyvinyl alcohol film, followed by photopolymerization of the residual acrylate groups. Prolate micro spheroids in which the mesogens are aligned parallel to the long axis were obtained and showed reversible thermally driven actuation owing to nematic to isotropic transition of the liquid crystal molecules. The particles were also compressed to form disk-shaped oblate microactuators in which the mesogens are aligned perpendicular to the short axis, demonstrating that the reported method is a versatile method to fabricate liquid crystal elastomer microactuators with programmable properties.0 Reacties 0 aandelen 31 Views 0 voorbeeld -
Context Managing the care of an increasing and ageing prisoner population, including providing palliative and end of life care, is a challenge worldwide. There is little known about the views of health professionals who provide palliative care to hospitalised prisoner patients. Objectives To explore experiences and perspectives of health professionals regarding the provision of palliative and end of life care for hospitalised prisoner patients. Methods A qualitative study involving semi-structured focus groups and interviews with 54 medical, nursing and allied health staff engaged in the care of hospitalised prisoner patients. Purposive sampling from a metropolitan teaching hospital responsible for providing secondary and tertiary health care for prisoners in Victoria, Australia for 40-years was utilised to identify and seek perspectives of staff from a variety of clinical disciplines. Inductive thematic analysis was conducted by two researchers. Results Participants described significant constraints in how they provide palliative care to hospitalised prisoners. Key themes emerged describing constraints on prisoner health decisions; provision and place of care; patient advocacy; and how care is delivered in the last days of life. Participants highlighted a deep philosophical tension between prison constraints and the foundational principles of palliative care. Conclusion Clarity of correctional services processes, protocols, and aspects of security and related training for health professionals is needed to ensure improved care for prisoners with progressive and life limiting illness. Further research is required to seek the views of prisoners facing end of life and their families.Context Cancer related fatigue is a highly prevalent symptom with a strong negative impact on patients' daily life. Objective To evaluate the efficacy of methylphenidate as needed for the management of fatigue in patients with advanced cancer. Methods A prospective, controlled, double-blind, paired design, where the patient was her/his own control. Patients with advanced cancer with a tiredness score > 50 on a 0-100 visual analogue scale (VAS) were included. Patients were given 10 placebo and 10 methylphenidate tablets numbered 1 to 20 packed in blocks of four with two active and two placebo tablets (randomly arranged). Patients taking minimum three tablets were regarded evaluable. Primary effect parameters were mean differences in VAS for tiredness after two and five hours. With 28 evaluable patients, the study had a power of 0.90 to detect a mean difference of 15 between active and placebo. Results Thirty-eight patients were enrolled to get 28 evaluable patients. Mean tiredness score before taking the tablets was 75 for placebo and 72 for methylphenidate on VAS (0-100). Mean changes (decrease) for methylphenidate after two and five hours were 20 and 17, respectively, and 8 and 5 for placebo. Comparing mean differences, a significant decrease for methylphenidate compared to placebo was observed after two hours (p=0.004) and five hours (p=0.001), respectively. Conclusion In this controlled, double-blind study in patients with advanced cancer, methylphenidate as needed was significantly more effective than placebo in relieving fatigue after two and five hours.Context Palliative care consultation before left ventricular assist device (LVAD) surgery (PreVAD) has been recommended, but its impact on goal concordant care is unknown. Objectives To describe the association between patients' unique unacceptable condition articulated during PreVAD with the actual care provided at the end of life. Methods Among 308 patients who had PreVAD between 2014 and 2019, 72 patients died before December 31, 2019. Based on the answers to the question, "Is there any condition you would find unacceptable?" patients were divided into ARTICULATE (those who could articulate their unacceptable condition clearly, n=58) and non-ARTICULATE (those who could not, n=14). Circumstances at death and end of life care were compared between groups. Results Mean age at death was 63.2 years (SD ±13.1), 56 patients (77.8%) were male, and median duration of LVAD was 167.5 days (IQR682). ARTICULATE patients died less frequently in the ICU than non-ARTICULATE patients (33 patients, 57.9% vs 13 patients, 92.9%, p=0.014), and had ethics consultation less frequently (4 patients, 6.9% vs 5 patients, 35.7%, p=0.011). Frequency of LVAD withdrawal was similar in both groups. Among ARTICULATE cohort, the unacceptable condition articulated in PreVAD did not seem to influence decisions at the end of life. Conclusion Patients who articulated their unacceptable condition clearly before LVAD surgery had less frequent ethics consultations and received less intensive care at the end of life, but it did not seem to affect the decision of LVAD withdrawal. It may be more important to engage in discussions around their unacceptable conditions, rather than the specific condition articulated. The question of "an unacceptable condition" should be part of any routine palliative care consultation before LVAD surgery.Objectives Lactoferrin (LF) possesses diverse biological functions. We previously reported that bovine LF (bLF) attenuates lipopolysaccharide-induced bone resorption in osteoblasts. In addition to its ability to inhibit osteoclastogenesis, bLF has been implicated in stimulating bone formation. However, the molecular mechanisms of bLF in bone cell anabolism remain unclear. https://www.selleckchem.com/products/2,4-thiazolidinedione.html Here, we tried to analyse the molecular mechanisms involved in osteogenesis in the presence of bLF. Methods Alkaline phosphatase activity, Runx2 activity, gene expression, and Alizarin red staining were analyzed to evaluate the osteogenic differentiation status. The expression of the Smads and mitogen-activated protein kinase (MAPK) signaling molecules was analyzed via western blotting. Ex vivo organ cultures of mouse calvariae were performed to evaluate the effect of bLF on bone regeneration. Results bLF enhanced the osteoblastic differentiation of mesenchymal stem cells through activation of Smad2/3 and p38 MAPK, which increased the transcriptional activity of Runx2.
Context Managing the care of an increasing and ageing prisoner population, including providing palliative and end of life care, is a challenge worldwide. There is little known about the views of health professionals who provide palliative care to hospitalised prisoner patients. Objectives To explore experiences and perspectives of health professionals regarding the provision of palliative and end of life care for hospitalised prisoner patients. Methods A qualitative study involving semi-structured focus groups and interviews with 54 medical, nursing and allied health staff engaged in the care of hospitalised prisoner patients. Purposive sampling from a metropolitan teaching hospital responsible for providing secondary and tertiary health care for prisoners in Victoria, Australia for 40-years was utilised to identify and seek perspectives of staff from a variety of clinical disciplines. Inductive thematic analysis was conducted by two researchers. Results Participants described significant constraints in how they provide palliative care to hospitalised prisoners. Key themes emerged describing constraints on prisoner health decisions; provision and place of care; patient advocacy; and how care is delivered in the last days of life. Participants highlighted a deep philosophical tension between prison constraints and the foundational principles of palliative care. Conclusion Clarity of correctional services processes, protocols, and aspects of security and related training for health professionals is needed to ensure improved care for prisoners with progressive and life limiting illness. Further research is required to seek the views of prisoners facing end of life and their families.Context Cancer related fatigue is a highly prevalent symptom with a strong negative impact on patients' daily life. Objective To evaluate the efficacy of methylphenidate as needed for the management of fatigue in patients with advanced cancer. Methods A prospective, controlled, double-blind, paired design, where the patient was her/his own control. Patients with advanced cancer with a tiredness score > 50 on a 0-100 visual analogue scale (VAS) were included. Patients were given 10 placebo and 10 methylphenidate tablets numbered 1 to 20 packed in blocks of four with two active and two placebo tablets (randomly arranged). Patients taking minimum three tablets were regarded evaluable. Primary effect parameters were mean differences in VAS for tiredness after two and five hours. With 28 evaluable patients, the study had a power of 0.90 to detect a mean difference of 15 between active and placebo. Results Thirty-eight patients were enrolled to get 28 evaluable patients. Mean tiredness score before taking the tablets was 75 for placebo and 72 for methylphenidate on VAS (0-100). Mean changes (decrease) for methylphenidate after two and five hours were 20 and 17, respectively, and 8 and 5 for placebo. Comparing mean differences, a significant decrease for methylphenidate compared to placebo was observed after two hours (p=0.004) and five hours (p=0.001), respectively. Conclusion In this controlled, double-blind study in patients with advanced cancer, methylphenidate as needed was significantly more effective than placebo in relieving fatigue after two and five hours.Context Palliative care consultation before left ventricular assist device (LVAD) surgery (PreVAD) has been recommended, but its impact on goal concordant care is unknown. Objectives To describe the association between patients' unique unacceptable condition articulated during PreVAD with the actual care provided at the end of life. Methods Among 308 patients who had PreVAD between 2014 and 2019, 72 patients died before December 31, 2019. Based on the answers to the question, "Is there any condition you would find unacceptable?" patients were divided into ARTICULATE (those who could articulate their unacceptable condition clearly, n=58) and non-ARTICULATE (those who could not, n=14). Circumstances at death and end of life care were compared between groups. Results Mean age at death was 63.2 years (SD ±13.1), 56 patients (77.8%) were male, and median duration of LVAD was 167.5 days (IQR682). ARTICULATE patients died less frequently in the ICU than non-ARTICULATE patients (33 patients, 57.9% vs 13 patients, 92.9%, p=0.014), and had ethics consultation less frequently (4 patients, 6.9% vs 5 patients, 35.7%, p=0.011). Frequency of LVAD withdrawal was similar in both groups. Among ARTICULATE cohort, the unacceptable condition articulated in PreVAD did not seem to influence decisions at the end of life. Conclusion Patients who articulated their unacceptable condition clearly before LVAD surgery had less frequent ethics consultations and received less intensive care at the end of life, but it did not seem to affect the decision of LVAD withdrawal. It may be more important to engage in discussions around their unacceptable conditions, rather than the specific condition articulated. The question of "an unacceptable condition" should be part of any routine palliative care consultation before LVAD surgery.Objectives Lactoferrin (LF) possesses diverse biological functions. We previously reported that bovine LF (bLF) attenuates lipopolysaccharide-induced bone resorption in osteoblasts. In addition to its ability to inhibit osteoclastogenesis, bLF has been implicated in stimulating bone formation. However, the molecular mechanisms of bLF in bone cell anabolism remain unclear. https://www.selleckchem.com/products/2,4-thiazolidinedione.html Here, we tried to analyse the molecular mechanisms involved in osteogenesis in the presence of bLF. Methods Alkaline phosphatase activity, Runx2 activity, gene expression, and Alizarin red staining were analyzed to evaluate the osteogenic differentiation status. The expression of the Smads and mitogen-activated protein kinase (MAPK) signaling molecules was analyzed via western blotting. Ex vivo organ cultures of mouse calvariae were performed to evaluate the effect of bLF on bone regeneration. Results bLF enhanced the osteoblastic differentiation of mesenchymal stem cells through activation of Smad2/3 and p38 MAPK, which increased the transcriptional activity of Runx2.0 Reacties 0 aandelen 36 Views 0 voorbeeld -
Purpose To validate a LC-MS/MS method for the determination of 17 new synthetic opioids (NSOs) in hair including 3-fluorofentanyl, 3-methylfentanyl, acetylfentanyl, acetylnorfentanyl, alfentanyl, butyrylfentanyl, butyrylnorfentanyl, carfentanil, fentanyl, furanylfentanyl, furanylnorfentanyl, methoxyacetylfentanyl, norcarfentanil, norfentanyl, ocfentanil, sufentanil and U-47700, and to apply it to 137 authentic samples. Method Twenty milligrams of hair were decontaminated in dichloromethane and underwent liquid extraction. 10 μL of the reconstituted residue were injected onto the system. The separation was performed in 12 minutes in a gradient mode at a flow rate of 300 μL/min using a Hypersyl Gold PFP column (100 x 2.1 mm i.d., 1.9 μm) maintained at 30 °C. Compounds were detected in positive ionization and MRM modes using a TSQ Endura mass spectrometer (ThermoFisher). The method was validated according to EMA guidelines. Results LLOQ ranged from 1-50 pg/mg, and the calibration ranged from the LLOQ-1000 pg/mg. Intra- and interday accuracy (bias) and precision were less then 15%. Extraction recoveries of parent drugs and metabolites ranged between 74-120% and 7-62 %, respectively. Matrix effect ranged from 59-126% (CVs ≤ 12.9%). Fentanyl was found in 6 cases at concentrations ranging from less then 1-1650 pg/mg (n= 14 segments). Five fentanyl analogs were quantified in 2 cases 3-fluorofentanyl [25-150 pg/mg, n=5], furanylfentanyl [15-500 pg/mg, n=5], methoxyacetylfentanyl [500-600 pg/mg, n=2], acetylfentanyl [1 pg/mg, n=2], carfentanyl [2.5-3 pg/mg, n=2]. Conclusion This fully validated method allowed to test for the first time 3-fluorofentanyl and norcarfentanil in hair among 15 other NSOs, and bring new data regarding 3-fluorofentanyl and methoxyacetylfentanyl hair concentrations.There is emerging data depicting the clinical presentation of COVID-19 in solid organ transplant recipients but negligible data-driven guidance on clinical management. A biphasic course has been described in some infected with SARS-CoV-2, beginning with a flu-like illness followed by an intense inflammatory response characterized by elevated c-reactive protein (CRP), interleukin 6 (IL-6), and acute respiratory distress syndrome (ARDS) associated with high mortality. The exuberant and possibly dysregulated immune response has prompted interest in therapeutic agents that target the cytokines involved, particularly IL-6. Tocilizumab is an IL-6 receptor antagonist with a record of use for a variety of rheumatologic conditions and cytokine release syndrome due to CAR T-cell therapy but experience in solid organ and composite tissue transplant recipients (SOT/CTTRs) with SARS-CoV-2-related ARDS has not been previously reported in detail. We present the clinical course of five SOT/CTTRs with SARS-CoV-2-related ARDS that received tocilizumab with favorable short-term outcomes in four. Responses were characterized by reductions in CRP, discontinuation of vasopressors, improved oxygenation and respiratory mechanics, and variable duration of ventilator support. Four bacterial infections occurred within two weeks of tocilizumab administration. We discuss safety concerns and the need for randomized comparative trials to delineate tocilizumab's clinical utility in this population.Non-coding RNA 886 (nc886/VTRNA2-1) is a Pol III transcript and an atypical imprinted gene. https://www.selleckchem.com/products/agi-24512.html Its exact function as a negative regulator of protein kinase R establishes its connection with innate immunity. Studies have shown that nc886 silencing is closely associated with prostate cancer progression. Previous work has constructed a cell model of stable nc886 overexpression ("mimic" or "nc886+ ") in PC-3M-1E8 cell lines (1E8), which are highly bone-metastatic human prostate cancer cells with low expression of nc886, and cells expressing the mimic were validated to have lower invasive and metastatic abilities than cells expressing the scramble transcript in vitro and in vivo. In this study, we directly injected mimic or scramble cells into the left ventricle of C57BL/C ****, an immunocompetent animal model, to elucidate the immune mechanisms of tumor-host interactions. Interestingly, we found that tumor cells induced the inflammation of many important organs due to xenogeneic antigen rejection; this inflammation was ultimately repaired by tissue fibrosis after 28 days, except for in the spleen. The reason is that mimic cells, as heterogeneous antigens, are mostly directly recognized by macrophages or T cells in blood, and few mimic cells enter the spleen compared with scramble cells. The induction of splenic macrophage polarization to M2 macrophages by scramble cells is a critical factor in maintaining chronic splenic inflammation. In addition, we recognize that nc886 broadly decreases the expression of some human leukocyte antigen molecules and antigen transporters. This evidence reveals the interesting role of nc886 in regulating tumor cell antigens.The coronavirus disease 2019 (COVID-19) pandemic caused by SARS coronavirus 2 (SARS-CoV-2) has caused significant morbidity and mortality for patients and stressed healthcare systems worldwide. The clinical features, disease course, and serologic response of COVID-19 among immunosuppressed patients such as solid organ transplant (SOT) recipients, who are at presumed risk for more severe disease, are not well characterized. We describe our institutional experience with COVID-19 among ten SOT patients, including the clinical presentation, treatment modalities, and outcomes of seven renal transplant recipients, one liver transplant recipient, one heart transplant recipient, and one lung transplant recipient. In addition, we report the serologic response in SOT recipients, documenting a positive IgG response in all seven hospitalized patients. We also review the existing literature on COVID-19 in SOT recipients to consolidate the current knowledge on COVID-19 in the SOT population for the transplant community.Background There is increased acknowledgment of the importance of knowledge translation (KT) in the role of graduate-prepared healthcare practitioners, such as nurses, as change agents in the mobilization of evidence-based knowledge. The offering of flexible educational programming online and hybrid course delivery in higher education is a response to insufficient didactic methods for providing graduate students with the competencies to facilitate KT. Aims To describe the development, implementation, and evaluation of a cohort-based, online, innovative KT curriculum using a theoretical approach to KT called the Knowledge-As-Action Framework, which focuses on the knower, knowledge, and context as being inseparable. This process strategically engages with stakeholders to link practice concerns with existing realities, thus providing the best available knowledge to inform KT action in complex healthcare contexts. Methods The Model of Evidence-Informed, Context-Relevant, Unified Curriculum Development in Nursing Education guided the cohort-based online KT course process.
Purpose To validate a LC-MS/MS method for the determination of 17 new synthetic opioids (NSOs) in hair including 3-fluorofentanyl, 3-methylfentanyl, acetylfentanyl, acetylnorfentanyl, alfentanyl, butyrylfentanyl, butyrylnorfentanyl, carfentanil, fentanyl, furanylfentanyl, furanylnorfentanyl, methoxyacetylfentanyl, norcarfentanil, norfentanyl, ocfentanil, sufentanil and U-47700, and to apply it to 137 authentic samples. Method Twenty milligrams of hair were decontaminated in dichloromethane and underwent liquid extraction. 10 μL of the reconstituted residue were injected onto the system. The separation was performed in 12 minutes in a gradient mode at a flow rate of 300 μL/min using a Hypersyl Gold PFP column (100 x 2.1 mm i.d., 1.9 μm) maintained at 30 °C. Compounds were detected in positive ionization and MRM modes using a TSQ Endura mass spectrometer (ThermoFisher). The method was validated according to EMA guidelines. Results LLOQ ranged from 1-50 pg/mg, and the calibration ranged from the LLOQ-1000 pg/mg. Intra- and interday accuracy (bias) and precision were less then 15%. Extraction recoveries of parent drugs and metabolites ranged between 74-120% and 7-62 %, respectively. Matrix effect ranged from 59-126% (CVs ≤ 12.9%). Fentanyl was found in 6 cases at concentrations ranging from less then 1-1650 pg/mg (n= 14 segments). Five fentanyl analogs were quantified in 2 cases 3-fluorofentanyl [25-150 pg/mg, n=5], furanylfentanyl [15-500 pg/mg, n=5], methoxyacetylfentanyl [500-600 pg/mg, n=2], acetylfentanyl [1 pg/mg, n=2], carfentanyl [2.5-3 pg/mg, n=2]. Conclusion This fully validated method allowed to test for the first time 3-fluorofentanyl and norcarfentanil in hair among 15 other NSOs, and bring new data regarding 3-fluorofentanyl and methoxyacetylfentanyl hair concentrations.There is emerging data depicting the clinical presentation of COVID-19 in solid organ transplant recipients but negligible data-driven guidance on clinical management. A biphasic course has been described in some infected with SARS-CoV-2, beginning with a flu-like illness followed by an intense inflammatory response characterized by elevated c-reactive protein (CRP), interleukin 6 (IL-6), and acute respiratory distress syndrome (ARDS) associated with high mortality. The exuberant and possibly dysregulated immune response has prompted interest in therapeutic agents that target the cytokines involved, particularly IL-6. Tocilizumab is an IL-6 receptor antagonist with a record of use for a variety of rheumatologic conditions and cytokine release syndrome due to CAR T-cell therapy but experience in solid organ and composite tissue transplant recipients (SOT/CTTRs) with SARS-CoV-2-related ARDS has not been previously reported in detail. We present the clinical course of five SOT/CTTRs with SARS-CoV-2-related ARDS that received tocilizumab with favorable short-term outcomes in four. Responses were characterized by reductions in CRP, discontinuation of vasopressors, improved oxygenation and respiratory mechanics, and variable duration of ventilator support. Four bacterial infections occurred within two weeks of tocilizumab administration. We discuss safety concerns and the need for randomized comparative trials to delineate tocilizumab's clinical utility in this population.Non-coding RNA 886 (nc886/VTRNA2-1) is a Pol III transcript and an atypical imprinted gene. https://www.selleckchem.com/products/agi-24512.html Its exact function as a negative regulator of protein kinase R establishes its connection with innate immunity. Studies have shown that nc886 silencing is closely associated with prostate cancer progression. Previous work has constructed a cell model of stable nc886 overexpression ("mimic" or "nc886+ ") in PC-3M-1E8 cell lines (1E8), which are highly bone-metastatic human prostate cancer cells with low expression of nc886, and cells expressing the mimic were validated to have lower invasive and metastatic abilities than cells expressing the scramble transcript in vitro and in vivo. In this study, we directly injected mimic or scramble cells into the left ventricle of C57BL/C mice, an immunocompetent animal model, to elucidate the immune mechanisms of tumor-host interactions. Interestingly, we found that tumor cells induced the inflammation of many important organs due to xenogeneic antigen rejection; this inflammation was ultimately repaired by tissue fibrosis after 28 days, except for in the spleen. The reason is that mimic cells, as heterogeneous antigens, are mostly directly recognized by macrophages or T cells in blood, and few mimic cells enter the spleen compared with scramble cells. The induction of splenic macrophage polarization to M2 macrophages by scramble cells is a critical factor in maintaining chronic splenic inflammation. In addition, we recognize that nc886 broadly decreases the expression of some human leukocyte antigen molecules and antigen transporters. This evidence reveals the interesting role of nc886 in regulating tumor cell antigens.The coronavirus disease 2019 (COVID-19) pandemic caused by SARS coronavirus 2 (SARS-CoV-2) has caused significant morbidity and mortality for patients and stressed healthcare systems worldwide. The clinical features, disease course, and serologic response of COVID-19 among immunosuppressed patients such as solid organ transplant (SOT) recipients, who are at presumed risk for more severe disease, are not well characterized. We describe our institutional experience with COVID-19 among ten SOT patients, including the clinical presentation, treatment modalities, and outcomes of seven renal transplant recipients, one liver transplant recipient, one heart transplant recipient, and one lung transplant recipient. In addition, we report the serologic response in SOT recipients, documenting a positive IgG response in all seven hospitalized patients. We also review the existing literature on COVID-19 in SOT recipients to consolidate the current knowledge on COVID-19 in the SOT population for the transplant community.Background There is increased acknowledgment of the importance of knowledge translation (KT) in the role of graduate-prepared healthcare practitioners, such as nurses, as change agents in the mobilization of evidence-based knowledge. The offering of flexible educational programming online and hybrid course delivery in higher education is a response to insufficient didactic methods for providing graduate students with the competencies to facilitate KT. Aims To describe the development, implementation, and evaluation of a cohort-based, online, innovative KT curriculum using a theoretical approach to KT called the Knowledge-As-Action Framework, which focuses on the knower, knowledge, and context as being inseparable. This process strategically engages with stakeholders to link practice concerns with existing realities, thus providing the best available knowledge to inform KT action in complex healthcare contexts. Methods The Model of Evidence-Informed, Context-Relevant, Unified Curriculum Development in Nursing Education guided the cohort-based online KT course process.0 Reacties 0 aandelen 66 Views 0 voorbeeld
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