Neueste Updates

  • Wagner's fully elaborated theory of learning (e.g., Vogel, *****, & Wagner, 2019) was founded on an initial analysis of the mechanisms responsible for habituation (Wagner, 1976, 1979). Central to its explanation of long-term habituation was the proposal that a predicted stimulus, one signaled by some other event as a consequence of associative learning, would be less effective at activating its central representation. We review evidence (from studies of the role of context in habituation and latent inhibition, of preexposure to the event to be used as an unconditioned stimulus in conditioning, and of conditioned diminution effects) taken to support this explanation. We argue that the evidence is less than convincing and consider instead an alternative account that interprets habituation as reflecting a reduction in the effective salience of a stimulus that is determined by a learning process akin to extinction, in which the critical factor is that the stimulus is presented followed by no consequences. The application of this account to the phenomena dealt with by Wagner's model is considered and further implications are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).We report 2 eye-tracking experiments with human variants of 2 rodent recognition memory tasks, relative recency and object-in-place. In Experiment 1 participants were sequentially exposed to 2 images, A then B, presented on a computer display. When subsequently tested with both images, participants biased looking toward the first-presented image A the relative recency effect. When contextual stimuli x and y, respectively, accompanied A and B in the exposure phase (xA, yB), the recency effect was greater when y was present at test, than when x was present. In Experiment 2 participants viewed 2 identical presentations of a 4-image array, ABCD, followed by a test with the same array, but in which one of the pairs of stimuli exchanged position (**** or ABDC). Participants looked preferentially at the displaced stimulus pair the object-in-place effect. Three further conditions replicated Experiment 1's findings 2 pairs of images were presented one after the other (AB followed by CD); on a test with AB and CD, relative recency was again evident as preferential looking at AB. https://www.selleckchem.com/autophagy.html Moreover, this effect was greater when the positions of the first-presented A and B were exchanged between exposure and test (****), compared with when the positions of second-presented C and D were exchanged (ABDC). The results were interpreted within the theoretical framework of the Sometime Opponent Process model of associative learning (Wagner, 1981). (PsycInfo Database Record (c) 2020 APA, all rights reserved).When a cue is established as a reliable predictor of an outcome (A-O1), this cue will typically block learning between an additional cue and the same outcome if both cues are subsequently trained together (AB-O1). Three experiments sought to explore whether this effect extends to outcomes and was investigated using the food allergist paradigm in human participants. In all 3 experiments, an outcome facilitation effect was observed. That is, prior learning about an element of an outcome compound (A-O1) facilitated learning about a novel outcome when (A-O2) these outcomes were presented together (A-O1 O2) relative to a control stimulus that first received C-O3 trials prior to C-O1 O2 trials. In Experiment 2, however, participants were also presented with an additional set of control trials, which were presented during Stage II only and reliably predicted the outcome compounds. At test, participants displayed more learning about these additional control trials relative to the blocked outcomes, thus displaying an outcome blocking effect alongside an outcome facilitation effect. In Experiment 3, a one-trial outcome blocking procedure was used to distinguish theoretical accounts of these findings. This procedure revealed an outcome facilitation effect but not an outcome blocking effect. These results can be understood in terms of an account derived from Wagner's (1981) model. The implications of these findings are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).In 2 experiments, participants received a predictive learning task in which the presence of 1 or 2 food items signaled the onset or absence of stomachache in a hypothetical patient. Their task was to identify the cues that signaled the occurrence, or nonoccurrence of this ailment. The 2 groups in Experiment 1 and the single group in Experiment 2 received a blocking treatment, where Cue A and a combination of Cues A and X both signaled stomachache, A+ AX+. These groups also received a simple discrimination where the outcome was signaled by one compound but not another, BY+ CY-. Subsequent test trials revealed the so-called redundancy effect, where X was regarded as a more reliable predictor of the outcome than Y. This result occurred when the trials with A+ preceded those with AX+ (Group E, Experiment 1 and Experiment 2), and when the trials with A+ and AX+ were intermixed (Group C, Experiment 1). The results challenge theories based on the assumption that cues presented together must compete for a limited pool of associative strength. Rather, they are said to support theories that assume changes in attention determine what is learned when two or more cues are presented together. (PsycInfo Database Record (c) 2020 APA, all rights reserved).When humans make biased or suboptimal choices, they are often attributed to complex cognitive processes that are viewed as being uniquely human. Alternatively, several phenomena, such as suboptimal gambling behavior and cognitive dissonance (justification of effort) may be explained more simply as examples of the contrast between what is expected and what occurs as well as Wagner's Standard Operating Procedure model based on reward prediction error. For example, when pigeons are attracted to choices involving a suboptimal, low probability of a high payoff, as in unskilled gambling behavior, it may be attributed to reward prediction error or the contrast between the low probability of reward expected and the sometimes high probability of reward obtained (when one wins). Similarly, justification of effort, the tendency to attribute greater value to rewards that are difficult to obtain, is typically explained in terms of the tendency to inflate the value of a reward to justify the effort required to obtain it. When pigeons prefer outcomes that require more effort to obtain, however, it is more likely to be explained in terms of contrast between the effort and the reward that follows.
    Wagner's fully elaborated theory of learning (e.g., Vogel, Ponce, & Wagner, 2019) was founded on an initial analysis of the mechanisms responsible for habituation (Wagner, 1976, 1979). Central to its explanation of long-term habituation was the proposal that a predicted stimulus, one signaled by some other event as a consequence of associative learning, would be less effective at activating its central representation. We review evidence (from studies of the role of context in habituation and latent inhibition, of preexposure to the event to be used as an unconditioned stimulus in conditioning, and of conditioned diminution effects) taken to support this explanation. We argue that the evidence is less than convincing and consider instead an alternative account that interprets habituation as reflecting a reduction in the effective salience of a stimulus that is determined by a learning process akin to extinction, in which the critical factor is that the stimulus is presented followed by no consequences. The application of this account to the phenomena dealt with by Wagner's model is considered and further implications are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).We report 2 eye-tracking experiments with human variants of 2 rodent recognition memory tasks, relative recency and object-in-place. In Experiment 1 participants were sequentially exposed to 2 images, A then B, presented on a computer display. When subsequently tested with both images, participants biased looking toward the first-presented image A the relative recency effect. When contextual stimuli x and y, respectively, accompanied A and B in the exposure phase (xA, yB), the recency effect was greater when y was present at test, than when x was present. In Experiment 2 participants viewed 2 identical presentations of a 4-image array, ABCD, followed by a test with the same array, but in which one of the pairs of stimuli exchanged position (BACD or ABDC). Participants looked preferentially at the displaced stimulus pair the object-in-place effect. Three further conditions replicated Experiment 1's findings 2 pairs of images were presented one after the other (AB followed by CD); on a test with AB and CD, relative recency was again evident as preferential looking at AB. https://www.selleckchem.com/autophagy.html Moreover, this effect was greater when the positions of the first-presented A and B were exchanged between exposure and test (BACD), compared with when the positions of second-presented C and D were exchanged (ABDC). The results were interpreted within the theoretical framework of the Sometime Opponent Process model of associative learning (Wagner, 1981). (PsycInfo Database Record (c) 2020 APA, all rights reserved).When a cue is established as a reliable predictor of an outcome (A-O1), this cue will typically block learning between an additional cue and the same outcome if both cues are subsequently trained together (AB-O1). Three experiments sought to explore whether this effect extends to outcomes and was investigated using the food allergist paradigm in human participants. In all 3 experiments, an outcome facilitation effect was observed. That is, prior learning about an element of an outcome compound (A-O1) facilitated learning about a novel outcome when (A-O2) these outcomes were presented together (A-O1 O2) relative to a control stimulus that first received C-O3 trials prior to C-O1 O2 trials. In Experiment 2, however, participants were also presented with an additional set of control trials, which were presented during Stage II only and reliably predicted the outcome compounds. At test, participants displayed more learning about these additional control trials relative to the blocked outcomes, thus displaying an outcome blocking effect alongside an outcome facilitation effect. In Experiment 3, a one-trial outcome blocking procedure was used to distinguish theoretical accounts of these findings. This procedure revealed an outcome facilitation effect but not an outcome blocking effect. These results can be understood in terms of an account derived from Wagner's (1981) model. The implications of these findings are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).In 2 experiments, participants received a predictive learning task in which the presence of 1 or 2 food items signaled the onset or absence of stomachache in a hypothetical patient. Their task was to identify the cues that signaled the occurrence, or nonoccurrence of this ailment. The 2 groups in Experiment 1 and the single group in Experiment 2 received a blocking treatment, where Cue A and a combination of Cues A and X both signaled stomachache, A+ AX+. These groups also received a simple discrimination where the outcome was signaled by one compound but not another, BY+ CY-. Subsequent test trials revealed the so-called redundancy effect, where X was regarded as a more reliable predictor of the outcome than Y. This result occurred when the trials with A+ preceded those with AX+ (Group E, Experiment 1 and Experiment 2), and when the trials with A+ and AX+ were intermixed (Group C, Experiment 1). The results challenge theories based on the assumption that cues presented together must compete for a limited pool of associative strength. Rather, they are said to support theories that assume changes in attention determine what is learned when two or more cues are presented together. (PsycInfo Database Record (c) 2020 APA, all rights reserved).When humans make biased or suboptimal choices, they are often attributed to complex cognitive processes that are viewed as being uniquely human. Alternatively, several phenomena, such as suboptimal gambling behavior and cognitive dissonance (justification of effort) may be explained more simply as examples of the contrast between what is expected and what occurs as well as Wagner's Standard Operating Procedure model based on reward prediction error. For example, when pigeons are attracted to choices involving a suboptimal, low probability of a high payoff, as in unskilled gambling behavior, it may be attributed to reward prediction error or the contrast between the low probability of reward expected and the sometimes high probability of reward obtained (when one wins). Similarly, justification of effort, the tendency to attribute greater value to rewards that are difficult to obtain, is typically explained in terms of the tendency to inflate the value of a reward to justify the effort required to obtain it. When pigeons prefer outcomes that require more effort to obtain, however, it is more likely to be explained in terms of contrast between the effort and the reward that follows.
    0 Kommentare 0 Geteilt 134 Ansichten 0 Bewertungen

  • Migrants suffer from worse psychological health than natives in many countries, yet the extent to which this varies by age at migration and duration of residence in the receiving context remains unexplored in Sweden. Drawing on a life course approach, we investigate differences in psychological distress by age at migration and duration of residence in working-age migrants to Sweden, and examine the role of various social determinants of health in explaining these differences relative to Swedish-born. Using pooled cross-sectional data from the 2011/2015 Health on Equal Terms survey in Västra Götaland Region, Sweden (n = 58,428), we applied logistic regression analysis to calculate predicted probabilities and average marginal effects (AME) of migrant status, by age at migration and duration of residence, on psychological distress. Analyses were stratified by sex and region of origin and controlled for indicators of socioeconomic status (SES), social cohesion, and discrimination to assess their potential contrib, which may ultimately improve their psychological wellbeing. A challenge facing health systems such as the English National Health Service (NHS), which operate in a context of diversity of provision and scarcity of financial resources, is how organisations engaged in the provision of services can be encouraged to adopt collective resource utilisation strategies to ensure limited resources are utilised in the interests of service users and, in the case of tax funded services, the general public. In this paper the authors apply Elinor Ostrom's work concerning communities' self-governance of common pool resources to the development of collective approaches to the utilisation of resources for the provision of health services. Focusing on the establishment of Sustainability and Transformation Partnerships (STPs) in the English NHS, and drawing on interviews with senior managers in English NHS purchaser and provider organisations, we use Ostrom's work as a frame to analyse STPs, as vehicles to agree and enact shared rules governing the allocation of financial resources, and the role of the state in relation to the development of this collective governance. While there was an unwillingness to use STPs to agree collective rules for resource allocation, we found that local actors were discussing and agreeing collective approaches regarding how resources should be utilised to deliver health services in order to make best use of scarce resources. State influence on the development of collective approaches to resource allocation through the STP was viewed by some as coercive, but also provided a necessary function to ensure accountability. Our analysis suggests Ostrom's notion of resource 'appropriation' should be extended to capture the nuances of resource utilisation in complex production chains, such as those involved in the delivery of health services where the extraction of funds is not an end in itself, but where the value of resources depends on how they are utilised. Health workforce planning is traditionally based on demographically-driven 'silo-based' models in which future requirements for particular health professions are determined by applying estimates of the future population to the existing population-based level of workforce supply. Estimates of future workforce requirements are focused on, and constrained by population size and requirements increase monotonically. Key failures of existing models include (1) lack of integration between planning the health care workforce, health care services and health care funding and (2) lack of integration between planning different health care inputs and the potential for substitution between inputs. Hence planning models fail to incorporate emerging developments in healthcare delivery and workforce change. We present an integrated needs-based framework for health workforce planning and apply the framework using data from nine European countries to explore the workforce and financial implications of re-configuring the delivery of care through changes in the allocation of treatment tasks between health care professions (skill mix). We show that cost consequences depend not only on pay differences. Instead, workforce planning in rapidly changing workforce environments must consider and incorporate between-provider group differences in productivity (the number of patients that are served per fixed period of time) and practice style (the number and mix of tasks used in providing care to the same type of patient). OBJECTIVE Underage alcohol use, and associated deleterious consequences, persists as a serious public health issue. In particular, early initiation of alcohol use increases risk for the development of alcohol use disorders later on in life. Religiosity - a multidimensional construct, encompassing personal beliefs, commitments, practices, and public behaviors - has demonstrated a strong protective effect on alcohol consumption; as one's religiosity increases their alcohol use behaviors decrease. This meta-analysis includes research spanning years 2008-2018, and specifically examines whether measuring religiosity via a single dimension, as compared to multiple dimensions, impacts the association between alcohol use and religiosity. METHOD A systematic electronic database search spanning three databases using relevant key terms was conducted. Overall, 16 studies were deemed appropriate for subsequent analyses. Effect sizes were calculated, homogeneity of effect sizes was assessed, overall weighted effects were computed, and moderator analyses were conducted to examine the effects of study-level characteristics on the variability of effect sizes. RESULTS Religiosity demonstrated a statistically significant protective effect on adolescent alcohol use (Z = -0.21, p  less then  .001). Measurement of religiosity (i.e., unidimensional versus multidimensional) explained a statistically significant amount of effect-size heterogeneity (Qb(1) = 7.38, p = .007). https://www.selleckchem.com/products/bay80-6946.html Thus, religiosity measure dimensionality had a significant effect on the protective effect of youth religiosity on alcohol use. CONCLUSION Results highlight the protective effect of youth religiosity on alcohol use. To further understand the scope of this protective association, future research would benefit from exploring the multidimensional nature of religiosity and the associations between varying conceptualizations of religiosity and adolescent alcohol use outcomes.
    Migrants suffer from worse psychological health than natives in many countries, yet the extent to which this varies by age at migration and duration of residence in the receiving context remains unexplored in Sweden. Drawing on a life course approach, we investigate differences in psychological distress by age at migration and duration of residence in working-age migrants to Sweden, and examine the role of various social determinants of health in explaining these differences relative to Swedish-born. Using pooled cross-sectional data from the 2011/2015 Health on Equal Terms survey in Västra Götaland Region, Sweden (n = 58,428), we applied logistic regression analysis to calculate predicted probabilities and average marginal effects (AME) of migrant status, by age at migration and duration of residence, on psychological distress. Analyses were stratified by sex and region of origin and controlled for indicators of socioeconomic status (SES), social cohesion, and discrimination to assess their potential contrib, which may ultimately improve their psychological wellbeing. A challenge facing health systems such as the English National Health Service (NHS), which operate in a context of diversity of provision and scarcity of financial resources, is how organisations engaged in the provision of services can be encouraged to adopt collective resource utilisation strategies to ensure limited resources are utilised in the interests of service users and, in the case of tax funded services, the general public. In this paper the authors apply Elinor Ostrom's work concerning communities' self-governance of common pool resources to the development of collective approaches to the utilisation of resources for the provision of health services. Focusing on the establishment of Sustainability and Transformation Partnerships (STPs) in the English NHS, and drawing on interviews with senior managers in English NHS purchaser and provider organisations, we use Ostrom's work as a frame to analyse STPs, as vehicles to agree and enact shared rules governing the allocation of financial resources, and the role of the state in relation to the development of this collective governance. While there was an unwillingness to use STPs to agree collective rules for resource allocation, we found that local actors were discussing and agreeing collective approaches regarding how resources should be utilised to deliver health services in order to make best use of scarce resources. State influence on the development of collective approaches to resource allocation through the STP was viewed by some as coercive, but also provided a necessary function to ensure accountability. Our analysis suggests Ostrom's notion of resource 'appropriation' should be extended to capture the nuances of resource utilisation in complex production chains, such as those involved in the delivery of health services where the extraction of funds is not an end in itself, but where the value of resources depends on how they are utilised. Health workforce planning is traditionally based on demographically-driven 'silo-based' models in which future requirements for particular health professions are determined by applying estimates of the future population to the existing population-based level of workforce supply. Estimates of future workforce requirements are focused on, and constrained by population size and requirements increase monotonically. Key failures of existing models include (1) lack of integration between planning the health care workforce, health care services and health care funding and (2) lack of integration between planning different health care inputs and the potential for substitution between inputs. Hence planning models fail to incorporate emerging developments in healthcare delivery and workforce change. We present an integrated needs-based framework for health workforce planning and apply the framework using data from nine European countries to explore the workforce and financial implications of re-configuring the delivery of care through changes in the allocation of treatment tasks between health care professions (skill mix). We show that cost consequences depend not only on pay differences. Instead, workforce planning in rapidly changing workforce environments must consider and incorporate between-provider group differences in productivity (the number of patients that are served per fixed period of time) and practice style (the number and mix of tasks used in providing care to the same type of patient). OBJECTIVE Underage alcohol use, and associated deleterious consequences, persists as a serious public health issue. In particular, early initiation of alcohol use increases risk for the development of alcohol use disorders later on in life. Religiosity - a multidimensional construct, encompassing personal beliefs, commitments, practices, and public behaviors - has demonstrated a strong protective effect on alcohol consumption; as one's religiosity increases their alcohol use behaviors decrease. This meta-analysis includes research spanning years 2008-2018, and specifically examines whether measuring religiosity via a single dimension, as compared to multiple dimensions, impacts the association between alcohol use and religiosity. METHOD A systematic electronic database search spanning three databases using relevant key terms was conducted. Overall, 16 studies were deemed appropriate for subsequent analyses. Effect sizes were calculated, homogeneity of effect sizes was assessed, overall weighted effects were computed, and moderator analyses were conducted to examine the effects of study-level characteristics on the variability of effect sizes. RESULTS Religiosity demonstrated a statistically significant protective effect on adolescent alcohol use (Z = -0.21, p  less then  .001). Measurement of religiosity (i.e., unidimensional versus multidimensional) explained a statistically significant amount of effect-size heterogeneity (Qb(1) = 7.38, p = .007). https://www.selleckchem.com/products/bay80-6946.html Thus, religiosity measure dimensionality had a significant effect on the protective effect of youth religiosity on alcohol use. CONCLUSION Results highlight the protective effect of youth religiosity on alcohol use. To further understand the scope of this protective association, future research would benefit from exploring the multidimensional nature of religiosity and the associations between varying conceptualizations of religiosity and adolescent alcohol use outcomes.
    0 Kommentare 0 Geteilt 184 Ansichten 0 Bewertungen

  • These differences suggest that the niche of the Lurcher mutant cerebellum is changed. The question, however, remains how these changes are related to the neurodegenerative process and how they could influence potential compensatory mechanisms, plasticity and response to therapeutic interventions. Recent studies have found developmental alterations of the brain during the adolescent period. However, maturation-related changes of the topological properties in brain networks are unexplored so far. We therefore used fluoro-d-glucose positron emission tomography (FDG PET) to explore the maturation-related topological metabolic changes in brain networks from adolescence to adulthood with a longitudinal study in rats (male, n = 6), followed by a graph theoretical analysis. Our results showed reduced normalization characteristic path length and increased small world index of brain networks. Specifically, we found that relative to adulthood, in the adolescent stage rats had significantly increased nodal centrality in right entorhinal cortex, left frontal association cortex, and cerebellum, areas relating to memory, executive function and higher cognitive control and motor control; and significantly reduced nodal centrality in left superior colliculus and left retrosplenial cortex. These findings suggest that moving from adolescence to adulthood, networks of the brain mature accompanied by reassignment of hub regions to increase network efficiency. These results provide an animal model of brain network maturation from adolescence to adulthood which are relevant for understanding of development of psychiatric disorders during adolescence or transition from adolescence to adulthood. OBJECTIVE Cognitive decline is a common non-motor symptom of Parkinson disease (PD), and cellular prion protein (PrPC) has been suggested to play a role in this process. https://www.selleckchem.com/products/bi-3802.html This study aimed to investigate the correlation between plasma exosomal prion protein and cognitive decline in PD patients. METHOD A total of 60 participants, which included 23 PD patients without cognitive impairment (the PD-NCI group), 17 PD patients with cognitive impairment (the PD-CI group) and 20 health controls were included in this study. All participants received a complete evaluation of motor symptoms as well as non-motor symptoms, which include devaluations of cognitive function(assessed with the Montreal Cognitive Assessment (****)) and their psychiatric state(assessed with the Hamilton Anxiety Scale(HAM-A) and Hamilton Depression Scale(HAMD-17)). We used an enzyme-linked immunosorbent assay (ELISA) to measure the plasma exosomal prion protein level. The exosomal marker Heat shock protein 70 (HSP 70) was used to normalize the protein level to the exosome content. RESULT In PD patients, the plasma exosomal prion protein concentration was negatively correlated with the cognitive level. The plasma exosomal prion protein concentration was significantly higher in the PD-CI group than in the control group (p  less then  0.05) and the PD-NCI group (p  less then  0.05).Multivariate regression analysis indicated that plasma exosomal prion protein levels were significantly associated with the cognitive level (t=-3.185, P = 0.001) after adjusting for age, education, disease duration, H&Y stage and MDS-UPDRS-III scores. CONCLUSION The plasma exosomal prion protein level is correlated with cognitive decline in PD patients and might be a potential biomarker for PD patients at risk for cognitive impairment. Irritable bowel syndrome (IBS) is a brain-gut disorder that is often accompanied by psychiatric comorbidities, particularly depression. However, the neuroanatomical substrates of IBS with depressive symptoms (DEP-IBS) and how depressive symptoms and brain morphology modulate IBS symptoms remain unknown. In this study, structural MRI data were processed using a voxel-based morphometry technique and one-way analysis of covariance (ANCOVA) and post-hoc t-tests were performed to compare gray matter volume (GMV) among 28 patients with DEP-IBS, 21 patients with IBS who lacked depressive symptoms (nDEP-IBS), and 36 healthy controls (HC). Correlation and mediation analyses were performed to evaluate the relationship between differing GMV in DEP-IBS and clinical variables. We found that GMV in the bilateral prefrontal, insular, and dorsal striatal areas, as well as the left temporal pole, were significantly lower in the DEP-IBS group than in the HC group. Moreover, compared with the nDEP-IBS group, the DEP-IBS group exhibited decreased GMV in the bilateral medial, dorsolateral prefrontal, and orbitofrontal cortices, bilateral dorsal striatum, and left insular cortices. Correlation analysis revealed that GMV in these atrophic brain areas of the DEP-IBS group was negatively correlated with depression, gastrointestinal symptoms, and disease duration. Our results further revealed that depressive symptoms served as a mediator between gastrointestinal symptoms and GMV in the left insula, right medial prefrontal cortex, and right middle frontal gyrus, while gastrointestinal symptoms served as a mediator between depression and GMV in these regions. Our results suggest convergent syndromic atrophy in the pain and emotional systems of patients with DEP-IBS. Transcranial static magnetic stimulation (tSMS) is a new technique of non-invasive brain stimulation using a small, high-powered neodymium magnet placed on the scalp. It can reduce cortical excitability below the magnet. The aim of this study was to investigate the effect of tSMS on the intracortical excitability of the primary motor cortex (M1) contralateral to the M1 where the magnet was placed. Fourteen right-handed healthy subjects participated in this experiment. TSMS was applied over the left M1 for 20 min. Single-pulse and paired-pulse transcranial magnetic stimulation (TMS) was applied over the right M1 to assess corticospinal excitability, short-latency intracortical inhibition (SICI), and intracortical facilitation (ICF) before and immediately after the intervention. ICF decreased significantly after tSMS, whereas corticospinal excitability and SICI did not change. This study suggests that tSMS applied over the M1 for 20 min has a remote modulatory effect on the interneuronal facilitatory circuit in the contralateral M1.
    These differences suggest that the niche of the Lurcher mutant cerebellum is changed. The question, however, remains how these changes are related to the neurodegenerative process and how they could influence potential compensatory mechanisms, plasticity and response to therapeutic interventions. Recent studies have found developmental alterations of the brain during the adolescent period. However, maturation-related changes of the topological properties in brain networks are unexplored so far. We therefore used fluoro-d-glucose positron emission tomography (FDG PET) to explore the maturation-related topological metabolic changes in brain networks from adolescence to adulthood with a longitudinal study in rats (male, n = 6), followed by a graph theoretical analysis. Our results showed reduced normalization characteristic path length and increased small world index of brain networks. Specifically, we found that relative to adulthood, in the adolescent stage rats had significantly increased nodal centrality in right entorhinal cortex, left frontal association cortex, and cerebellum, areas relating to memory, executive function and higher cognitive control and motor control; and significantly reduced nodal centrality in left superior colliculus and left retrosplenial cortex. These findings suggest that moving from adolescence to adulthood, networks of the brain mature accompanied by reassignment of hub regions to increase network efficiency. These results provide an animal model of brain network maturation from adolescence to adulthood which are relevant for understanding of development of psychiatric disorders during adolescence or transition from adolescence to adulthood. OBJECTIVE Cognitive decline is a common non-motor symptom of Parkinson disease (PD), and cellular prion protein (PrPC) has been suggested to play a role in this process. https://www.selleckchem.com/products/bi-3802.html This study aimed to investigate the correlation between plasma exosomal prion protein and cognitive decline in PD patients. METHOD A total of 60 participants, which included 23 PD patients without cognitive impairment (the PD-NCI group), 17 PD patients with cognitive impairment (the PD-CI group) and 20 health controls were included in this study. All participants received a complete evaluation of motor symptoms as well as non-motor symptoms, which include devaluations of cognitive function(assessed with the Montreal Cognitive Assessment (MoCA)) and their psychiatric state(assessed with the Hamilton Anxiety Scale(HAM-A) and Hamilton Depression Scale(HAMD-17)). We used an enzyme-linked immunosorbent assay (ELISA) to measure the plasma exosomal prion protein level. The exosomal marker Heat shock protein 70 (HSP 70) was used to normalize the protein level to the exosome content. RESULT In PD patients, the plasma exosomal prion protein concentration was negatively correlated with the cognitive level. The plasma exosomal prion protein concentration was significantly higher in the PD-CI group than in the control group (p  less then  0.05) and the PD-NCI group (p  less then  0.05).Multivariate regression analysis indicated that plasma exosomal prion protein levels were significantly associated with the cognitive level (t=-3.185, P = 0.001) after adjusting for age, education, disease duration, H&Y stage and MDS-UPDRS-III scores. CONCLUSION The plasma exosomal prion protein level is correlated with cognitive decline in PD patients and might be a potential biomarker for PD patients at risk for cognitive impairment. Irritable bowel syndrome (IBS) is a brain-gut disorder that is often accompanied by psychiatric comorbidities, particularly depression. However, the neuroanatomical substrates of IBS with depressive symptoms (DEP-IBS) and how depressive symptoms and brain morphology modulate IBS symptoms remain unknown. In this study, structural MRI data were processed using a voxel-based morphometry technique and one-way analysis of covariance (ANCOVA) and post-hoc t-tests were performed to compare gray matter volume (GMV) among 28 patients with DEP-IBS, 21 patients with IBS who lacked depressive symptoms (nDEP-IBS), and 36 healthy controls (HC). Correlation and mediation analyses were performed to evaluate the relationship between differing GMV in DEP-IBS and clinical variables. We found that GMV in the bilateral prefrontal, insular, and dorsal striatal areas, as well as the left temporal pole, were significantly lower in the DEP-IBS group than in the HC group. Moreover, compared with the nDEP-IBS group, the DEP-IBS group exhibited decreased GMV in the bilateral medial, dorsolateral prefrontal, and orbitofrontal cortices, bilateral dorsal striatum, and left insular cortices. Correlation analysis revealed that GMV in these atrophic brain areas of the DEP-IBS group was negatively correlated with depression, gastrointestinal symptoms, and disease duration. Our results further revealed that depressive symptoms served as a mediator between gastrointestinal symptoms and GMV in the left insula, right medial prefrontal cortex, and right middle frontal gyrus, while gastrointestinal symptoms served as a mediator between depression and GMV in these regions. Our results suggest convergent syndromic atrophy in the pain and emotional systems of patients with DEP-IBS. Transcranial static magnetic stimulation (tSMS) is a new technique of non-invasive brain stimulation using a small, high-powered neodymium magnet placed on the scalp. It can reduce cortical excitability below the magnet. The aim of this study was to investigate the effect of tSMS on the intracortical excitability of the primary motor cortex (M1) contralateral to the M1 where the magnet was placed. Fourteen right-handed healthy subjects participated in this experiment. TSMS was applied over the left M1 for 20 min. Single-pulse and paired-pulse transcranial magnetic stimulation (TMS) was applied over the right M1 to assess corticospinal excitability, short-latency intracortical inhibition (SICI), and intracortical facilitation (ICF) before and immediately after the intervention. ICF decreased significantly after tSMS, whereas corticospinal excitability and SICI did not change. This study suggests that tSMS applied over the M1 for 20 min has a remote modulatory effect on the interneuronal facilitatory circuit in the contralateral M1.
    0 Kommentare 0 Geteilt 138 Ansichten 0 Bewertungen

  • addictions (U=36,806.5, Z=4.96, P less then .001; U=23,765.5, Z=3.66, P less then .001). Conclusion Although health professional students had similar beliefs and perceptions regarding the opioid crisis, there were notable differences between academic programs. Students with clinical opioid experiences were more likely to plan on working with patients addicted to opioids and be confident in treating these patients. Thus, the inclusion of experiential learning in the medical curricula may be beneficial for both students and their future patients.Adult T cell leukemia/lymphoma (ATL) is an aggressive hematological malignancy caused by Human T-cell leukemia virus type-1 (HTLV-1). https://www.selleckchem.com/products/bi-3802.html ATL is preceded by decades of chronic HTLV-1 infection, and the tumors carry both somatic mutations and proviral DNA integrated into the tumor genome. In order to gain insight into the oncogenic process, we used targeted sequencing to track the evolution of the malignant clone in six individuals, 2-10 years before the diagnosis of ATL. Clones of premalignant HTLV-1-infected cells bearing known driver mutations were detected in the blood up to 10 years before individuals developed acute and lymphoma subtype ATL. Six months before diagnosis, the total number and variant allele fraction of mutations increased in the blood. Peripheral blood mononuclear cells from premalignant cases (1 year pre-diagnosis) had significantly higher mutational burden in genes frequently mutated in ATL than did high risk, age-matched HTLV-1-carriers who remained ATL-free after a median of 10 years of follow up. These data show that HTLV-1-infected T cell clones carrying key oncogenic driver mutations can be detected in cases of ATL years before the onset of symptoms. Early detection of such mutations may enable earlier and more effective intervention to prevent the development of ATL. Copyright © 2020 American Society of Hematology.Glutaric aciduria type 1 (GA1) is an inborn error of lysine degradation characterized by a specific encephalopathy that is caused by toxic accumulation of lysine degradation intermediates. Substrate reduction through inhibition of DHTKD1, an enzyme upstream of the defective glutaryl-CoA dehydrogenase, has been investigated as a potential therapy, but revealed the existence of an alternative enzymatic source of glutaryl-CoA. Here we show that loss of DHTKD1 in GCDH-deficient HEK-293 cells leads to a 2-fold decrease in the established GA1 clinical biomarker glutarylcarnitine, and demonstrate that OGDH is responsible for this remaining glutarylcarnitine production. We furthermore show that DHTKD1 interacts with OGDH, DLST and DLD to form a hybrid 2-oxoglutaric and 2-oxoadipic acid dehydrogenase complex. In summary, 2-oxoadipic acid is a substrate for DHTKD1, but also for OGDH in a cell model system. The classical 2-oxoglutaric dehydrogenase complex can exist as a previously undiscovered hybrid containing DHTKD1 displaying improved kinetics towards 2-oxoadipic acid. © The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email journals.permissions@oup.com.PURPOSE To develop and implement an interprofessional framework to increase the capture of health system-generated prescriptions within health system-owned pharmacies. SUMMARY Low prescription capture rates within a health system's internal pharmacies led to an interdisciplinary process improvement effort. A framework was developed to assess the baseline prescription capture rate, select clinics for improvement, understand clinic workflows and key drivers of pharmacy selection, design strategies to increase prescription capture, implement targeted efforts, and measure the effectiveness of the intervention(s). Employing this framework provided revised workflows for nursing and medical assistant staff scripting and for referral of patients to internal pharmacies. These workflows were pilot tested at 3 system clinics. Results indicated that overall prescription capture increased 2.9% to by 2.9 to 4.1 percentage points (range, 10 to 86 prescriptions per month) and specialty prescription capture increased 11.6 to 26.7 percentage points (range, 4 to 26 prescriptions per month) for each clinic within the first 2 months. A total of 99 new patients were referred to internal pharmacies within the first month. CONCLUSION Development and implementation of a framework to increase prescription capture from health system clinics helped increase capture, enhanced clinic engagement and knowledge about pharmacy services, and supported positive clinic-pharmacy relationships. © American Society of Health-System Pharmacists 2020. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.Heterozygous de novo mutations in EEF1A2, encoding the tissue-specific translation elongation factor eEF1A2, have been shown to cause neurodevelopmental disorders including often severe epilepsy and intellectual disability. The mutational profile is unusual; ~ 50 different missense mutations have been identified but no obvious loss of function mutations, though large heterozygous deletions are known to be compatible with life. A key question is whether the heterozygous missense mutations operate through haploinsufficiency or a gain of function mechanism, an important prerequisite for design of therapeutic strategies. In order both to address this question and to provide a novel model for neurodevelopmental disorders resulting from mutations in EEF1A2, we created a new mouse model of the D252H mutation. This mutation causes the eEF1A2 protein to be expressed at lower levels in brain but higher in muscle in the ****. We compared both heterozygous and homozygous D252H and null mutant **** using behavioural and motor phenotyping alongside molecular modelling and analysis of binding partners. Although the proteomic analysis pointed to a loss of function for the D252H mutant protein, the D252H homozygous **** were more severely affected than null homozygotes on the same genetic background. **** that are heterozygous for the missense mutation show no behavioural abnormalities but do have sex-specific deficits in body mass and motor function. The phenotyping of our novel mouse lines, together with analysis of molecular modelling and interacting proteins, suggest that the D252H mutation results in a gain of function. © The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email journals.permissions@oup.com.
    addictions (U=36,806.5, Z=4.96, P less then .001; U=23,765.5, Z=3.66, P less then .001). Conclusion Although health professional students had similar beliefs and perceptions regarding the opioid crisis, there were notable differences between academic programs. Students with clinical opioid experiences were more likely to plan on working with patients addicted to opioids and be confident in treating these patients. Thus, the inclusion of experiential learning in the medical curricula may be beneficial for both students and their future patients.Adult T cell leukemia/lymphoma (ATL) is an aggressive hematological malignancy caused by Human T-cell leukemia virus type-1 (HTLV-1). https://www.selleckchem.com/products/bi-3802.html ATL is preceded by decades of chronic HTLV-1 infection, and the tumors carry both somatic mutations and proviral DNA integrated into the tumor genome. In order to gain insight into the oncogenic process, we used targeted sequencing to track the evolution of the malignant clone in six individuals, 2-10 years before the diagnosis of ATL. Clones of premalignant HTLV-1-infected cells bearing known driver mutations were detected in the blood up to 10 years before individuals developed acute and lymphoma subtype ATL. Six months before diagnosis, the total number and variant allele fraction of mutations increased in the blood. Peripheral blood mononuclear cells from premalignant cases (1 year pre-diagnosis) had significantly higher mutational burden in genes frequently mutated in ATL than did high risk, age-matched HTLV-1-carriers who remained ATL-free after a median of 10 years of follow up. These data show that HTLV-1-infected T cell clones carrying key oncogenic driver mutations can be detected in cases of ATL years before the onset of symptoms. Early detection of such mutations may enable earlier and more effective intervention to prevent the development of ATL. Copyright © 2020 American Society of Hematology.Glutaric aciduria type 1 (GA1) is an inborn error of lysine degradation characterized by a specific encephalopathy that is caused by toxic accumulation of lysine degradation intermediates. Substrate reduction through inhibition of DHTKD1, an enzyme upstream of the defective glutaryl-CoA dehydrogenase, has been investigated as a potential therapy, but revealed the existence of an alternative enzymatic source of glutaryl-CoA. Here we show that loss of DHTKD1 in GCDH-deficient HEK-293 cells leads to a 2-fold decrease in the established GA1 clinical biomarker glutarylcarnitine, and demonstrate that OGDH is responsible for this remaining glutarylcarnitine production. We furthermore show that DHTKD1 interacts with OGDH, DLST and DLD to form a hybrid 2-oxoglutaric and 2-oxoadipic acid dehydrogenase complex. In summary, 2-oxoadipic acid is a substrate for DHTKD1, but also for OGDH in a cell model system. The classical 2-oxoglutaric dehydrogenase complex can exist as a previously undiscovered hybrid containing DHTKD1 displaying improved kinetics towards 2-oxoadipic acid. © The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email journals.permissions@oup.com.PURPOSE To develop and implement an interprofessional framework to increase the capture of health system-generated prescriptions within health system-owned pharmacies. SUMMARY Low prescription capture rates within a health system's internal pharmacies led to an interdisciplinary process improvement effort. A framework was developed to assess the baseline prescription capture rate, select clinics for improvement, understand clinic workflows and key drivers of pharmacy selection, design strategies to increase prescription capture, implement targeted efforts, and measure the effectiveness of the intervention(s). Employing this framework provided revised workflows for nursing and medical assistant staff scripting and for referral of patients to internal pharmacies. These workflows were pilot tested at 3 system clinics. Results indicated that overall prescription capture increased 2.9% to by 2.9 to 4.1 percentage points (range, 10 to 86 prescriptions per month) and specialty prescription capture increased 11.6 to 26.7 percentage points (range, 4 to 26 prescriptions per month) for each clinic within the first 2 months. A total of 99 new patients were referred to internal pharmacies within the first month. CONCLUSION Development and implementation of a framework to increase prescription capture from health system clinics helped increase capture, enhanced clinic engagement and knowledge about pharmacy services, and supported positive clinic-pharmacy relationships. © American Society of Health-System Pharmacists 2020. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.Heterozygous de novo mutations in EEF1A2, encoding the tissue-specific translation elongation factor eEF1A2, have been shown to cause neurodevelopmental disorders including often severe epilepsy and intellectual disability. The mutational profile is unusual; ~ 50 different missense mutations have been identified but no obvious loss of function mutations, though large heterozygous deletions are known to be compatible with life. A key question is whether the heterozygous missense mutations operate through haploinsufficiency or a gain of function mechanism, an important prerequisite for design of therapeutic strategies. In order both to address this question and to provide a novel model for neurodevelopmental disorders resulting from mutations in EEF1A2, we created a new mouse model of the D252H mutation. This mutation causes the eEF1A2 protein to be expressed at lower levels in brain but higher in muscle in the mice. We compared both heterozygous and homozygous D252H and null mutant mice using behavioural and motor phenotyping alongside molecular modelling and analysis of binding partners. Although the proteomic analysis pointed to a loss of function for the D252H mutant protein, the D252H homozygous mice were more severely affected than null homozygotes on the same genetic background. Mice that are heterozygous for the missense mutation show no behavioural abnormalities but do have sex-specific deficits in body mass and motor function. The phenotyping of our novel mouse lines, together with analysis of molecular modelling and interacting proteins, suggest that the D252H mutation results in a gain of function. © The Author(s) 2020. Published by Oxford University Press. All rights reserved. For Permissions, please email journals.permissions@oup.com.
    0 Kommentare 0 Geteilt 171 Ansichten 0 Bewertungen

  • Positive impacts were reported, but study quality was generally low and reliant on data from retrospective evaluation designs. Key features of service delivery were identified a proactive outreach approach, centrally organised but locally delivered interventions, event-specific professional competencies and an emphasis on psycho-educational content.

    Despite the limitations in the quantity and quality of the evidence base, consistent messages are identified for bereavement support provision during the pandemic. High quality primary studies are needed to ensure service improvement in the current crisis and to guide future disaster response efforts.
    Despite the limitations in the quantity and quality of the evidence base, consistent messages are identified for bereavement support provision during the pandemic. High quality primary studies are needed to ensure service improvement in the current crisis and to guide future disaster response efforts.
    Invasive pneumococcal disease is seasonal and associated with influenza, but the same is uncertain for pleural infection. We set out to investigate whether pleural infection referrals similarly correlate with the seasonal variation in influenza burden and whether the microbiologic etiology varies according to certain factors.

    Cases of pleural infection were retrieved from the database of a Pleural Unit in a tertiary hospital in the UK. https://www.selleckchem.com/products/deferoxamine-mesylate.html The rate of referrals for pleural infection was compared to contemporary national rates of influenza hospitalizations and primary care presentation with influenza like illnesses.

    Between August 2015 and December 2019, 157 cases of pleural infection were diagnosed. The monthly rate of referrals with pleural infections was 3.8 cases/month, but this varied between months [range 0-6 cases]. No clear increase in pleural infection referrals coinciding or falling after peak influenza diagnosis was observed. However, the rate of infection referrals correlated positively with the overall monthly volume of pleural referrals (β 0.035,
    =0.004). Gram negative bacteria seemed more common during the hotter months, in hospital-acquired infections and in younger adults. Young adults were more commonly infected with pneumococci than older adults, who were more vulnerable to anaerobic infections.

    Direct association between the rate of pleural infection cases and influenza activity was not identified. Pleural infection microbiology appears to differ according to age and environmental temperatures.
    Direct association between the rate of pleural infection cases and influenza activity was not identified. Pleural infection microbiology appears to differ according to age and environmental temperatures.
    Entrectinib, an oral pan-TRK, ALK, and ROS1 inhibitor is approved as a first-line treatment for NTRK-rearranged solid tumors and ROS1-rearranged non-small cell lung cancer (NSCLC). It has demonstrated clinical efficacy for patients harboring the relevant gene rearrangement in both systemic and intracranial disease, regardless of the tumor type.

    In this review, the authors analyzed data from preclinical and clinical studies, the characteristics of entrectinib compared to those of other relevant inhibitors (currently available and/or under investigation), and the emerging resistance mechanisms. The authors then provide the readers with their future perspectives.

    Entrectinib has been well studied across many tumor types, including NSCLC with ALK, ROS1, and NTRK rearrangements. The drug has demonstrated favorable properties with oral administration, prolonged response duration, high intracranial efficacy, and a favorable toxicity profile. However, with acquisition of resistance and the development of newer generation TKIs, the optimal place for entrectinib in the landscape of targeted therapies for NSCLC warrants further validation.
    Entrectinib has been well studied across many tumor types, including NSCLC with ALK, ROS1, and NTRK rearrangements. The drug has demonstrated favorable properties with oral administration, prolonged response duration, high intracranial efficacy, and a favorable toxicity profile. However, with acquisition of resistance and the development of newer generation TKIs, the optimal place for entrectinib in the landscape of targeted therapies for NSCLC warrants further validation.
    Hospital palliative care is an essential part of the COVID-19 response, but relevant data are lacking. The recent literature underscores the need to implement protocols for symptom control and the training of non-specialists by palliative care teams.

    The aim of the study was to describe a palliative care unit's consultation and assistance intervention at the request of an Infectious Diseases Unit during the COVID-19 pandemic, determining what changes needed to be made in delivering palliative care.

    This is a single holistic case study design using data triangulation, for example, audio recordings of team meetings and field notes.

    This study was conducted in the Palliative Care Unit of the AUSL-IRCCS hospital of Reggio Emilia, which has no designated beds, consulting with the Infectious Diseases Unit of the same hospital.

    A total of 9 physicians and 22 nurses of the Infectious Diseases Unit and two physicians of the Palliative Care Unit participated in the study.Our Palliative Care Unit developed a feasible 18-day multicomponent consultation intervention. Three macro themes were identified (1) new answers to new needs, (2) symptom relief and decision-making process, and (3) educational and training issues.

    From the perspective of palliative care, some changes in usual care needed to be made. These included breaking bad news, patients' use of communication devices, the limited time available for the delivery of care, managing death necessarily only inside the hospital, and relationships with families.
    From the perspective of palliative care, some changes in usual care needed to be made. These included breaking bad news, patients' use of communication devices, the limited time available for the delivery of care, managing death necessarily only inside the hospital, and relationships with families.
    Positive impacts were reported, but study quality was generally low and reliant on data from retrospective evaluation designs. Key features of service delivery were identified a proactive outreach approach, centrally organised but locally delivered interventions, event-specific professional competencies and an emphasis on psycho-educational content. Despite the limitations in the quantity and quality of the evidence base, consistent messages are identified for bereavement support provision during the pandemic. High quality primary studies are needed to ensure service improvement in the current crisis and to guide future disaster response efforts. Despite the limitations in the quantity and quality of the evidence base, consistent messages are identified for bereavement support provision during the pandemic. High quality primary studies are needed to ensure service improvement in the current crisis and to guide future disaster response efforts. Invasive pneumococcal disease is seasonal and associated with influenza, but the same is uncertain for pleural infection. We set out to investigate whether pleural infection referrals similarly correlate with the seasonal variation in influenza burden and whether the microbiologic etiology varies according to certain factors. Cases of pleural infection were retrieved from the database of a Pleural Unit in a tertiary hospital in the UK. https://www.selleckchem.com/products/deferoxamine-mesylate.html The rate of referrals for pleural infection was compared to contemporary national rates of influenza hospitalizations and primary care presentation with influenza like illnesses. Between August 2015 and December 2019, 157 cases of pleural infection were diagnosed. The monthly rate of referrals with pleural infections was 3.8 cases/month, but this varied between months [range 0-6 cases]. No clear increase in pleural infection referrals coinciding or falling after peak influenza diagnosis was observed. However, the rate of infection referrals correlated positively with the overall monthly volume of pleural referrals (β 0.035, =0.004). Gram negative bacteria seemed more common during the hotter months, in hospital-acquired infections and in younger adults. Young adults were more commonly infected with pneumococci than older adults, who were more vulnerable to anaerobic infections. Direct association between the rate of pleural infection cases and influenza activity was not identified. Pleural infection microbiology appears to differ according to age and environmental temperatures. Direct association between the rate of pleural infection cases and influenza activity was not identified. Pleural infection microbiology appears to differ according to age and environmental temperatures. Entrectinib, an oral pan-TRK, ALK, and ROS1 inhibitor is approved as a first-line treatment for NTRK-rearranged solid tumors and ROS1-rearranged non-small cell lung cancer (NSCLC). It has demonstrated clinical efficacy for patients harboring the relevant gene rearrangement in both systemic and intracranial disease, regardless of the tumor type. In this review, the authors analyzed data from preclinical and clinical studies, the characteristics of entrectinib compared to those of other relevant inhibitors (currently available and/or under investigation), and the emerging resistance mechanisms. The authors then provide the readers with their future perspectives. Entrectinib has been well studied across many tumor types, including NSCLC with ALK, ROS1, and NTRK rearrangements. The drug has demonstrated favorable properties with oral administration, prolonged response duration, high intracranial efficacy, and a favorable toxicity profile. However, with acquisition of resistance and the development of newer generation TKIs, the optimal place for entrectinib in the landscape of targeted therapies for NSCLC warrants further validation. Entrectinib has been well studied across many tumor types, including NSCLC with ALK, ROS1, and NTRK rearrangements. The drug has demonstrated favorable properties with oral administration, prolonged response duration, high intracranial efficacy, and a favorable toxicity profile. However, with acquisition of resistance and the development of newer generation TKIs, the optimal place for entrectinib in the landscape of targeted therapies for NSCLC warrants further validation. Hospital palliative care is an essential part of the COVID-19 response, but relevant data are lacking. The recent literature underscores the need to implement protocols for symptom control and the training of non-specialists by palliative care teams. The aim of the study was to describe a palliative care unit's consultation and assistance intervention at the request of an Infectious Diseases Unit during the COVID-19 pandemic, determining what changes needed to be made in delivering palliative care. This is a single holistic case study design using data triangulation, for example, audio recordings of team meetings and field notes. This study was conducted in the Palliative Care Unit of the AUSL-IRCCS hospital of Reggio Emilia, which has no designated beds, consulting with the Infectious Diseases Unit of the same hospital. A total of 9 physicians and 22 nurses of the Infectious Diseases Unit and two physicians of the Palliative Care Unit participated in the study.Our Palliative Care Unit developed a feasible 18-day multicomponent consultation intervention. Three macro themes were identified (1) new answers to new needs, (2) symptom relief and decision-making process, and (3) educational and training issues. From the perspective of palliative care, some changes in usual care needed to be made. These included breaking bad news, patients' use of communication devices, the limited time available for the delivery of care, managing death necessarily only inside the hospital, and relationships with families. From the perspective of palliative care, some changes in usual care needed to be made. These included breaking bad news, patients' use of communication devices, the limited time available for the delivery of care, managing death necessarily only inside the hospital, and relationships with families.
    0 Kommentare 0 Geteilt 136 Ansichten 0 Bewertungen

  • PURPOSE To investigate whether non-allergic rhinitis among the elderly was associated with living close to mine dumps METHODS Elderly persons (n = 2397) residing in communities 1-2 km (exposed) and ≥ 5 km (unexposed) from five preselected mine dumps in Gauteng and North West provinces in South Africa were included in the cross-sectional study, using a previously validated modified ATS-DLD-78 questionnaire from the British Medical Research Council. RESULTS The overall prevalence of non-allergic rhinitis in this study was 23.99%. In the unexposed, it was found to be 18.82% and 27.08% exposed communities. Multiple logistic regression analysis indicated that having non-allergic rhinitis was significantly associated with living in exposed communities (OR 1.73; 95% CI 1.37-2.17), being an ex-smoker (OR 1.75; 95 CI 1.35-2.26), being a smoker (OR 1.24; 95% CI 1.02-1.62), history of occupational exposure to dust/chemical fumes (OR 1.58; 1.30-1.93) and use of gas as the main residential heating/cooking fuel type (OR 1.61; 1.01-2.57). CONCLUSION A high prevalence of non-allergic rhinitis was observed in the elderly living in exposed communities. https://www.selleckchem.com/products/trastuzumab-deruxtecan.html The adverse association was observed between residing in communities close to mine dumps and non-allergic rhinitis.About 33% patients with osteoarthritis undergoing total hip/knee arthroplasty are not satisfied with the outcome, warranting the need to improve patient selection. Handgrip strength (HGS) has been suggested as a proxy for overall muscle strength and may be associated with post-arthroplasty function. This study aims to assess the association of pre-operative HGS with change in hip/knee function and quality of life in patients with arthroplasty. 226 hip (THA) and 246 knee (TKA) arthroplasty patients were included in this prospective cohort study. Pre-operative HGS was assessed by means of a dynamometer and the HOOS/KOOS and SF-36 questionnaires were collected before arthroplasty and 1 year thereafter. The association of HGS with score change on each sub-domain of the included questionnaires was assessed by linear regression models, adjusting for sex, body mass index and baseline score. Mean pre-operative HGS was 26 kg for patients undergoing THA and 24 kg for those undergoing TKA. HGS was positively associated with an increased improvement score on "function in sport and recreation"-domain in hip (β = 0.68, P = 0.005) and knee (β = 0.52, P = 0.049) and "symptoms"-domain in hip (β = 0.56, P = 0.001). For patients with THA, HGS was associated with the "quality of life" domain (β = 0.33, P = 0.033). In patients with TKA, HGS was associated with the physical component score (β = 0.31, P = 0.001). All statistically significant effects were positive, indicating that with greater pre-operative HGS, an increased gain in 1-year post-surgery score was observed. HGS can be used as a tool to inform patients with OA who are future candidates for a prosthesis about the possible improvements of certain aspects of life after arthroplasty.Necrosis with inflammation plays a crucial role in acute respiratory distress syndrome (ARDS). Receptor-interacting protein 3 (RIPK3) regulates a newly discovered programmed form of necrosis called necroptosis. However, the underlying mechanism of necroptosis in ARDS remains unknown. Thus, the purpose of this study was to examine the possible involvement of RIPK3 in ARDS-associated necroptosis. RIPK3 protein levels were found to be significantly elevated in the plasma and bronchoalveolar lavage fluid of ARDS patients. Next, we utilised a mouse model of severe ARDS induced with high-dose lipopolysaccharide and found that lung injury was mainly due to RIPK3-mixed lineage kinase domain-like pseudokinase (MLKL)-mediated necroptosis and endothelial dysfunction. The activation of RIPK3-MLKL by tumour necrosis factor receptor 1 (TNFR1) and TNFR1-associated death domain protein (TRADD) required catalytically active RIPK1 and the inhibition of Fas-associated protein with death domain (FADD)/caspase-8 catalytic activity. We further showed that the molecular chaperone heat shock protein 90 (Hsp90)/p23, as a novel RIPK3- and MLKL-interacting complex, played an important role in RIP-MLKL-mediated necroptosis, inflammation and endothelial dysfunction in the pulmonary vasculature, which resulted in ARDS. Collectively, the results of our study indicate that necroptosis is an important mechanism of cell death in ARDS and the inhibition of necroptosis may be a therapeutic intervention for ARDS. KEY MESSAGES Lung injury in high-dose LPS-induced severe ARDS is mainly due to RIP3-MLKL-mediated necroptosis and endothelial dysfunction. Chaperone HSP90/p23 is a novel RIP3- and MLKL-interacting complex in HPAECs. HSP90/p23 is a novel RIP3- and MLKL-interacting complex in RIP-MLKL-mediated necroptosis, inflammation and endothelial dysfunction.Embryo implantation is an essential and complex process in mammalian reproduction. However, little evidence has indicated the involvement of autophagy during embryo implantation. To determine the possible role of autophagy in uterine of pregnant **** during the peri-implantation stage, we first examined the expression of autophagy-related markers ATG5 and LC3 on day 4, 5, and 6 of pregnancy (D4, D5, and D6, respectively). Compared with expression on D4, downregulation of the autophagy-related markers was observed on D5 and D6, the days after the embryo attached to the receptivity endometrium. Further examination showed that autophagy-related markers ATG5, ATG12, LC3, cathepsin B, and P62 at the implantation site were significantly decreased when comparing with the inter-implantation site. Fewer number of autophagosomes at the implantation site were also observed by transmission electron microscopy. To confirm the functional role of autophagy during embryo implantation in ****, we administered the autophagy inhibitor 3-methyladenine and chloroquine to ****. After treated with 3-methyladenine, the expression of decidual markers HOXA10 and progesterone receptor were significantly reduced. Furthermore, a reduction in implantation sites and increase in the HOXA10 and PR protein levels were observed in response to chloroquine treatment. In addition, impaired uterine decidualization and dysregulation of the PR and HOXA10 protein levels was observed after autophagy inhibited by 3-methyladenine and chloroquine in in vivo artificial decidualization mouse model. In the last, LC3 and P62 were also observed in normal human proliferative, secretory, and decidua tissues. In conclusion, endometrial autophagy may be essential for embryo implantation, and it may be associated with endometrial decidualization during early pregnancy. KEY MESSAGE • Autophagy-related markers were significantly decreased at implantation site. • Autophagy inhibition results in abnormal decidualization. • Autophagy is essential for embryo implantation.
    PURPOSE To investigate whether non-allergic rhinitis among the elderly was associated with living close to mine dumps METHODS Elderly persons (n = 2397) residing in communities 1-2 km (exposed) and ≥ 5 km (unexposed) from five preselected mine dumps in Gauteng and North West provinces in South Africa were included in the cross-sectional study, using a previously validated modified ATS-DLD-78 questionnaire from the British Medical Research Council. RESULTS The overall prevalence of non-allergic rhinitis in this study was 23.99%. In the unexposed, it was found to be 18.82% and 27.08% exposed communities. Multiple logistic regression analysis indicated that having non-allergic rhinitis was significantly associated with living in exposed communities (OR 1.73; 95% CI 1.37-2.17), being an ex-smoker (OR 1.75; 95 CI 1.35-2.26), being a smoker (OR 1.24; 95% CI 1.02-1.62), history of occupational exposure to dust/chemical fumes (OR 1.58; 1.30-1.93) and use of gas as the main residential heating/cooking fuel type (OR 1.61; 1.01-2.57). CONCLUSION A high prevalence of non-allergic rhinitis was observed in the elderly living in exposed communities. https://www.selleckchem.com/products/trastuzumab-deruxtecan.html The adverse association was observed between residing in communities close to mine dumps and non-allergic rhinitis.About 33% patients with osteoarthritis undergoing total hip/knee arthroplasty are not satisfied with the outcome, warranting the need to improve patient selection. Handgrip strength (HGS) has been suggested as a proxy for overall muscle strength and may be associated with post-arthroplasty function. This study aims to assess the association of pre-operative HGS with change in hip/knee function and quality of life in patients with arthroplasty. 226 hip (THA) and 246 knee (TKA) arthroplasty patients were included in this prospective cohort study. Pre-operative HGS was assessed by means of a dynamometer and the HOOS/KOOS and SF-36 questionnaires were collected before arthroplasty and 1 year thereafter. The association of HGS with score change on each sub-domain of the included questionnaires was assessed by linear regression models, adjusting for sex, body mass index and baseline score. Mean pre-operative HGS was 26 kg for patients undergoing THA and 24 kg for those undergoing TKA. HGS was positively associated with an increased improvement score on "function in sport and recreation"-domain in hip (β = 0.68, P = 0.005) and knee (β = 0.52, P = 0.049) and "symptoms"-domain in hip (β = 0.56, P = 0.001). For patients with THA, HGS was associated with the "quality of life" domain (β = 0.33, P = 0.033). In patients with TKA, HGS was associated with the physical component score (β = 0.31, P = 0.001). All statistically significant effects were positive, indicating that with greater pre-operative HGS, an increased gain in 1-year post-surgery score was observed. HGS can be used as a tool to inform patients with OA who are future candidates for a prosthesis about the possible improvements of certain aspects of life after arthroplasty.Necrosis with inflammation plays a crucial role in acute respiratory distress syndrome (ARDS). Receptor-interacting protein 3 (RIPK3) regulates a newly discovered programmed form of necrosis called necroptosis. However, the underlying mechanism of necroptosis in ARDS remains unknown. Thus, the purpose of this study was to examine the possible involvement of RIPK3 in ARDS-associated necroptosis. RIPK3 protein levels were found to be significantly elevated in the plasma and bronchoalveolar lavage fluid of ARDS patients. Next, we utilised a mouse model of severe ARDS induced with high-dose lipopolysaccharide and found that lung injury was mainly due to RIPK3-mixed lineage kinase domain-like pseudokinase (MLKL)-mediated necroptosis and endothelial dysfunction. The activation of RIPK3-MLKL by tumour necrosis factor receptor 1 (TNFR1) and TNFR1-associated death domain protein (TRADD) required catalytically active RIPK1 and the inhibition of Fas-associated protein with death domain (FADD)/caspase-8 catalytic activity. We further showed that the molecular chaperone heat shock protein 90 (Hsp90)/p23, as a novel RIPK3- and MLKL-interacting complex, played an important role in RIP-MLKL-mediated necroptosis, inflammation and endothelial dysfunction in the pulmonary vasculature, which resulted in ARDS. Collectively, the results of our study indicate that necroptosis is an important mechanism of cell death in ARDS and the inhibition of necroptosis may be a therapeutic intervention for ARDS. KEY MESSAGES Lung injury in high-dose LPS-induced severe ARDS is mainly due to RIP3-MLKL-mediated necroptosis and endothelial dysfunction. Chaperone HSP90/p23 is a novel RIP3- and MLKL-interacting complex in HPAECs. HSP90/p23 is a novel RIP3- and MLKL-interacting complex in RIP-MLKL-mediated necroptosis, inflammation and endothelial dysfunction.Embryo implantation is an essential and complex process in mammalian reproduction. However, little evidence has indicated the involvement of autophagy during embryo implantation. To determine the possible role of autophagy in uterine of pregnant mice during the peri-implantation stage, we first examined the expression of autophagy-related markers ATG5 and LC3 on day 4, 5, and 6 of pregnancy (D4, D5, and D6, respectively). Compared with expression on D4, downregulation of the autophagy-related markers was observed on D5 and D6, the days after the embryo attached to the receptivity endometrium. Further examination showed that autophagy-related markers ATG5, ATG12, LC3, cathepsin B, and P62 at the implantation site were significantly decreased when comparing with the inter-implantation site. Fewer number of autophagosomes at the implantation site were also observed by transmission electron microscopy. To confirm the functional role of autophagy during embryo implantation in mice, we administered the autophagy inhibitor 3-methyladenine and chloroquine to mice. After treated with 3-methyladenine, the expression of decidual markers HOXA10 and progesterone receptor were significantly reduced. Furthermore, a reduction in implantation sites and increase in the HOXA10 and PR protein levels were observed in response to chloroquine treatment. In addition, impaired uterine decidualization and dysregulation of the PR and HOXA10 protein levels was observed after autophagy inhibited by 3-methyladenine and chloroquine in in vivo artificial decidualization mouse model. In the last, LC3 and P62 were also observed in normal human proliferative, secretory, and decidua tissues. In conclusion, endometrial autophagy may be essential for embryo implantation, and it may be associated with endometrial decidualization during early pregnancy. KEY MESSAGE • Autophagy-related markers were significantly decreased at implantation site. • Autophagy inhibition results in abnormal decidualization. • Autophagy is essential for embryo implantation.
    0 Kommentare 0 Geteilt 132 Ansichten 0 Bewertungen

  • Red tide has always been an environmental issue with global concern. A Noctiluca scintillans red tide and a Mesodinium red tide occurred successively in Yantai nearshore, China, where is usually oligotrophic, in October 2019. Currents, phytoplankton community composition and nutrients were analyzed to access the driving factors of the red tides. The maximum N. scintillans and Mesodiniium abundance reached 124.92 ± 236.84 × 103 cells/L and 1157.52 ± 1294.16 × 103 cells/L respectively. The fast growth of N. scintillans was due to increasing abundance of phytoplankton. The currents were crucial to the assembly and dispersal of red tides. The red tides significantly redistributed the nutrients in the red tide patches and regulated the dominant species in phytoplankton community. Our study illuminates the influence of physical-biochemical coupling processes on red tides, and suggests that ocean dynamics such as currents and tidal factors deserve more attention when considering the ecosystem health problems of coastal zones.From early in life, we activate our neural motor system when observing others' actions. In adults, this so-called mirroring is modulated not only by the saliency of an action but also by top-down processes, like the intention to imitate it. Yet, it remains unknown whether neural processing of others' actions can be modulated by top-down processes in young children who heavily rely on learning from observing and imitating others but also still develop top-down control skills. Using EEG, we examined whether the intention to imitate increases 4-year-olds' motor activation while observing others' actions. In a within-subjects design, children observed identical actions preceded by distinct instructions, namely to either imitate the action or to name the toy's color. As motor activation index, children's alpha (7-12 Hz) and beta (16-20 Hz) power over motor cortices was analyzed. The results revealed more motor activity reflected by significantly lower beta power for the Imitation compared to the Color-naming Task. The same conditional difference, although differently located, was detected for alpha power. Together, our results show that children's neural processing of others' actions was amplified by their intention to imitate the action. Thus, already at age 4 top-down attention to others' actions can modulate neural action processing.Childhood adversity is heterogeneous with potentially distinct dimensions of violence exposure and social deprivation. These dimensions may differentially shape emotion-based neural circuitry, such as amygdala-PFC white matter connectivity. Amygdala-orbitofrontal cortex (OFC) white matter connectivity has been linked to regulation of the amygdala's response to emotional stimuli. Using a preregistered analysis plan, we prospectively examined the effects of childhood exposure to two dimensions of adversity, violence exposure and social deprivation, on the adolescent amygdala-PFC white matter connectivity. We also reproduced the negative correlation between amygdala-PFC white matter connectivity and amygdala activation to threat faces. https://www.selleckchem.com/products/msc2530818.html 183 15-17-year-olds were recruited from the Fragile Families and Child Wellbeing Study - a longitudinal, birth cohort, sample of predominantly low-income youth. Probabilistic tractography revealed that childhood violence exposure and social deprivation interacted to predict the probability of adolescent right hemisphere amygdala-OFC white matter connectivity. High violence exposure with high social deprivation related to less amygdala-OFC white matter connectivity. Violence exposure was not associated with white matter connectivity when social deprivation was at mean or low levels (i.e., relatively socially supportive contexts). Therefore, social deprivation may exacerbate the effects of childhood violence exposure on the development of white matter connections involved in emotion processing and regulation. Conversely, social support may buffer against them.Anxiety is the most common form of psychopathology, and it is often characterized by chronic impairment across the lifespan. Researchers have identified core neural markers that confer risk for anxious outcomes. An increased error-related negativity (ERN) in anxious individuals has been shown to prospectively predict onset of anxiety disorders across development. Hence, it is critical to examine environmental factors that may shape the ERN. In the current study, we use a large sample of 170 female adolescents aged 10-17 to investigate whether the ERN mediates the relationship between parenting style and anxiety diagnostic status. This study replicates previous findings, and it extends previous work by suggesting that this relationship is more robust in young children as compared to adolescents. Interventions targeting the ERN via parenting may be most effective during childhood.BRCA1-associated protein (BRAP) was first found to bind to the nuclear localization signal motifs of BRCA1. In this study, we investigated the role of BRAP in gastric cancer. The cancer genome atlas(TCGA) data were obtained from UALCAN. We downregulated and upregulated the level of BRAP in gastric cancer cells by transfection with shRNAs and plasmids. Then, we evaluated the expression of BRAP by qRT-PCR and investigated the expression of important proteins by Western blot analysis. We conducted a microarray analysis to identify the function of BRAP in gastric cancer cells. Then, we investigated the effect of BRAP on proliferation and migration by CCK-8 assays, colony formation assays, wound healing assays and an extreme limiting dilution analysis. The analysis of TCGA data showed that BRAP was significantly overexpressed in gastric cancer tissues compared to that in normal gastric mucosal tissues (P less then 0.001). A hybridization-based microarray assay was used to analyze ****803 cells and BRAP-downregulescuing the function of BRAP downregulation in the MAPK pathway. Xenograft tumor transplantation experiments in nude **** further confirmed the role of BRAP in gastric cancer progression and metastasis.
    Transarterial radioembolization (TARE) is recently emerging treatment modality using radiation from Yttrium-90 through the transarterial approach. It usually is used in the intermediate stage and unresectable hepatocellular carcinoma (HCC). No touch isolation technique is a way to prevent the spread of tumors by pre-ligating the vessels around the tumor with minimal touch during surgery. We hoped that if we were to use these techniques, we would be able to control all viable tumors before liver transplantation. Then we could get better outcomes even in the advanced hepatocellular carcinoma patients.

    We performed living donor liver transplantation using no touch isolation technique in the patients who had multinodular hepatocellular carcinoma and extremely high AFP, PIVKA-II level after TARE and conventional TACE.

    36 years old female patient had liver cirrhosis with hepatitis B virus infection and multiple hepatocellular carcinoma in both lobes. Hepatologist decided to do TARE and additional conventional TACE for viable tumors.
    Red tide has always been an environmental issue with global concern. A Noctiluca scintillans red tide and a Mesodinium red tide occurred successively in Yantai nearshore, China, where is usually oligotrophic, in October 2019. Currents, phytoplankton community composition and nutrients were analyzed to access the driving factors of the red tides. The maximum N. scintillans and Mesodiniium abundance reached 124.92 ± 236.84 × 103 cells/L and 1157.52 ± 1294.16 × 103 cells/L respectively. The fast growth of N. scintillans was due to increasing abundance of phytoplankton. The currents were crucial to the assembly and dispersal of red tides. The red tides significantly redistributed the nutrients in the red tide patches and regulated the dominant species in phytoplankton community. Our study illuminates the influence of physical-biochemical coupling processes on red tides, and suggests that ocean dynamics such as currents and tidal factors deserve more attention when considering the ecosystem health problems of coastal zones.From early in life, we activate our neural motor system when observing others' actions. In adults, this so-called mirroring is modulated not only by the saliency of an action but also by top-down processes, like the intention to imitate it. Yet, it remains unknown whether neural processing of others' actions can be modulated by top-down processes in young children who heavily rely on learning from observing and imitating others but also still develop top-down control skills. Using EEG, we examined whether the intention to imitate increases 4-year-olds' motor activation while observing others' actions. In a within-subjects design, children observed identical actions preceded by distinct instructions, namely to either imitate the action or to name the toy's color. As motor activation index, children's alpha (7-12 Hz) and beta (16-20 Hz) power over motor cortices was analyzed. The results revealed more motor activity reflected by significantly lower beta power for the Imitation compared to the Color-naming Task. The same conditional difference, although differently located, was detected for alpha power. Together, our results show that children's neural processing of others' actions was amplified by their intention to imitate the action. Thus, already at age 4 top-down attention to others' actions can modulate neural action processing.Childhood adversity is heterogeneous with potentially distinct dimensions of violence exposure and social deprivation. These dimensions may differentially shape emotion-based neural circuitry, such as amygdala-PFC white matter connectivity. Amygdala-orbitofrontal cortex (OFC) white matter connectivity has been linked to regulation of the amygdala's response to emotional stimuli. Using a preregistered analysis plan, we prospectively examined the effects of childhood exposure to two dimensions of adversity, violence exposure and social deprivation, on the adolescent amygdala-PFC white matter connectivity. We also reproduced the negative correlation between amygdala-PFC white matter connectivity and amygdala activation to threat faces. https://www.selleckchem.com/products/msc2530818.html 183 15-17-year-olds were recruited from the Fragile Families and Child Wellbeing Study - a longitudinal, birth cohort, sample of predominantly low-income youth. Probabilistic tractography revealed that childhood violence exposure and social deprivation interacted to predict the probability of adolescent right hemisphere amygdala-OFC white matter connectivity. High violence exposure with high social deprivation related to less amygdala-OFC white matter connectivity. Violence exposure was not associated with white matter connectivity when social deprivation was at mean or low levels (i.e., relatively socially supportive contexts). Therefore, social deprivation may exacerbate the effects of childhood violence exposure on the development of white matter connections involved in emotion processing and regulation. Conversely, social support may buffer against them.Anxiety is the most common form of psychopathology, and it is often characterized by chronic impairment across the lifespan. Researchers have identified core neural markers that confer risk for anxious outcomes. An increased error-related negativity (ERN) in anxious individuals has been shown to prospectively predict onset of anxiety disorders across development. Hence, it is critical to examine environmental factors that may shape the ERN. In the current study, we use a large sample of 170 female adolescents aged 10-17 to investigate whether the ERN mediates the relationship between parenting style and anxiety diagnostic status. This study replicates previous findings, and it extends previous work by suggesting that this relationship is more robust in young children as compared to adolescents. Interventions targeting the ERN via parenting may be most effective during childhood.BRCA1-associated protein (BRAP) was first found to bind to the nuclear localization signal motifs of BRCA1. In this study, we investigated the role of BRAP in gastric cancer. The cancer genome atlas(TCGA) data were obtained from UALCAN. We downregulated and upregulated the level of BRAP in gastric cancer cells by transfection with shRNAs and plasmids. Then, we evaluated the expression of BRAP by qRT-PCR and investigated the expression of important proteins by Western blot analysis. We conducted a microarray analysis to identify the function of BRAP in gastric cancer cells. Then, we investigated the effect of BRAP on proliferation and migration by CCK-8 assays, colony formation assays, wound healing assays and an extreme limiting dilution analysis. The analysis of TCGA data showed that BRAP was significantly overexpressed in gastric cancer tissues compared to that in normal gastric mucosal tissues (P less then 0.001). A hybridization-based microarray assay was used to analyze MGC-803 cells and BRAP-downregulescuing the function of BRAP downregulation in the MAPK pathway. Xenograft tumor transplantation experiments in nude mice further confirmed the role of BRAP in gastric cancer progression and metastasis. Transarterial radioembolization (TARE) is recently emerging treatment modality using radiation from Yttrium-90 through the transarterial approach. It usually is used in the intermediate stage and unresectable hepatocellular carcinoma (HCC). No touch isolation technique is a way to prevent the spread of tumors by pre-ligating the vessels around the tumor with minimal touch during surgery. We hoped that if we were to use these techniques, we would be able to control all viable tumors before liver transplantation. Then we could get better outcomes even in the advanced hepatocellular carcinoma patients. We performed living donor liver transplantation using no touch isolation technique in the patients who had multinodular hepatocellular carcinoma and extremely high AFP, PIVKA-II level after TARE and conventional TACE. 36 years old female patient had liver cirrhosis with hepatitis B virus infection and multiple hepatocellular carcinoma in both lobes. Hepatologist decided to do TARE and additional conventional TACE for viable tumors.
    0 Kommentare 0 Geteilt 167 Ansichten 0 Bewertungen

  • 005). CONCLUSIONS Habitual use of fish oil seems to be associated with a lower risk of all cause and CVD mortality and to provide a marginal benefit against CVD events among the general population. © Author(s) (or their employer(s)) 2019. https://www.selleckchem.com/products/at13387.html Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.OBJECTIVE To examine the associations between stopping treatment with opioids, length of treatment, and death from overdose or suicide in the Veterans Health Administration. DESIGN Observational evaluation. SETTING Veterans Health Administration. PARTICIPANTS 1 394 102 patients in the Veterans Health Administration with an outpatient prescription for an opioid analgesic from fiscal year 2013 to the end of fiscal year 2014 (1 October 2012 to 30 September 2014). MAIN OUTCOME MEASURES A multivariable Cox non-proportional hazards regression model examined death from overdose or suicide, with the interaction of time varying opioid cessation by length of treatment (≤30, 31-90, 91-400, and >400 days) as the main covariates. Stopping treatment with opioids was measured as the time when a patient was estimated to have no prescription for opioids, up to the end of the next fiscal year (2014) or the patient's death. RESULTS 2887 deaths from overdose or suicide were found. The incidence of stopping opioid treatment was 5d was not investigated. Safer prescribing of opioids should take a broader view on patient safety and mitigate the risk from the patient's perspective. Factors to address are those that place patients at risk for overdose or suicide after beginning and stopping opioid treatment, especially in the first three months. © Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.BACKGROUND Locally advanced pancreatic cancer (LAPC) is a devastating disease and irreversible electroporation (IRE) is a non-thermal ablation method that is especially suitable for the treatment of LAPC. This study aimed to compare the long-term survival of LAPC patients after induction chemotherapy followed by IRE and chemotherapy alone. METHODS From August 2015 to August 2017, a total of 132 patients with LAPC were identified. The oncological outcomes of these two treatments were analyzed by propensity score matching (PSM) analysis. RESULTS Before PSM analysis, patients with LAPC had better overall survival (OS) and progression-free survival (PFS) after induction chemotherapy followed by IRE than those who received chemotherapy alone (2-year OS rates, 57.9% vs 19.8%, P  less then  0.001; 2-year PFS rates, 31.4% vs 9.3%, P  less then  0.001). The baseline clinicopathological factors were balanced between the 2 groups through PSM analysis. Even after PSM, the OS and PFS rates of patients after induction chemotherapy followed by IRE treatment were superior to those of patients who received chemotherapy treatment alone (2-year OS rates, 57.9% vs 18.1%, P  less then  0.001; 2-year PFS rates, 31.4% vs 7.1%, P  less then  0.001). Multivariate Cox regression analysis indicated that chemotherapy plus IRE was a significant prognostic factor for both OS and PFS in patients of both the whole cohort and the matched cohort. CONCLUSIONS Induction chemotherapy followed by IRE provided better OS and PFS than chemotherapy alone for patients with LAPC. This combination method may be a more suitable treatment for patients with LAPC. Vocal fold polyp (VFP) is an exophytic gelatinous lesion with an atrophic epithelium. After behavioral and conservative management, phonomicrosurgery is the treatment of choice for VFPs with excellent outcomes in terms of lesion resolution and postoperative vocal function. Office-based potassium titanyl phosphate (KTP) laser ablation is a new treatment modality for VFPs but its efficacy for professional singers has yet to be validated. Reported is a consecutive series of six professional singers (with seven episodes of VFP) who, based on patient and provider preference, underwent in-office KTP laser ablation of VFP. Two polyps required two ablation procedures; otherwise, a single treatment was successful in resolution of VFP at a mean resolution time of 44 days. Singing voice handicap index 10 improved from a mean of 30.8 (range 4-40) to 6.0 (range 0-22). All patients resumed their professional singing careers without vocal limitations. Posttreatment videos were reviewed by three blinded fellowship trained laryngologists, who were not able to accurately predict the laterality of the polyp (52% correct, p = 0.99). Drug-susceptibility test (DST) is important for tuberculosis care; however, there are several pitfalls with the procedure. A 70-year-old woman was diagnosed with extensively drug-resistant tuberculosis based on the result of a DST using microdilution method. Because she had no history of medication for tuberculosis and the sputum acid-fast bacillus smear test turned negative during standard treatment, identification of the strain used for DST was performed. Consequently, the strain was found to be M. intracellulare. It was assumed that a colony of M. intracellulare that had existed in the preculture solid medium was selected and used for the DST. PURPOSE Unilateral posterior vertical insufficiency (PVI) is a growth defect of the mandibular condyle that results in a facial asymmetry. Various surgical procedures can be used to elongate the hypoplastic ramus. The aim of this study was to evaluate long-term aesthetic and architectural outcomes of vertical ramus osteotomy (VRO) in patients with unilateral PVI. MATERIALS AND METHODS Patients operated on with unilateral VRO were included in this retrospective study. Aesthetic and architectural parameters were evaluated on frontal photographs as well as on frontal and lateral cephalograms preoperatively, postoperatively, at 1-year and at the end of the follow-up. RESULTS A total of 48 patients were analyzed. The aesthetic assessment revealed significant correction of the chin deviation (CD) and of the lip commissural line tilt after VRO (p1 = 0.0038 and p2 = 0.0067, respectively) with stable results. The architectural analysis revealed significant improvement in the maxillary and mandibular occlusal planes, as well as the chin deviation (p  less then  0.
    005). CONCLUSIONS Habitual use of fish oil seems to be associated with a lower risk of all cause and CVD mortality and to provide a marginal benefit against CVD events among the general population. © Author(s) (or their employer(s)) 2019. https://www.selleckchem.com/products/at13387.html Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.OBJECTIVE To examine the associations between stopping treatment with opioids, length of treatment, and death from overdose or suicide in the Veterans Health Administration. DESIGN Observational evaluation. SETTING Veterans Health Administration. PARTICIPANTS 1 394 102 patients in the Veterans Health Administration with an outpatient prescription for an opioid analgesic from fiscal year 2013 to the end of fiscal year 2014 (1 October 2012 to 30 September 2014). MAIN OUTCOME MEASURES A multivariable Cox non-proportional hazards regression model examined death from overdose or suicide, with the interaction of time varying opioid cessation by length of treatment (≤30, 31-90, 91-400, and >400 days) as the main covariates. Stopping treatment with opioids was measured as the time when a patient was estimated to have no prescription for opioids, up to the end of the next fiscal year (2014) or the patient's death. RESULTS 2887 deaths from overdose or suicide were found. The incidence of stopping opioid treatment was 5d was not investigated. Safer prescribing of opioids should take a broader view on patient safety and mitigate the risk from the patient's perspective. Factors to address are those that place patients at risk for overdose or suicide after beginning and stopping opioid treatment, especially in the first three months. © Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.BACKGROUND Locally advanced pancreatic cancer (LAPC) is a devastating disease and irreversible electroporation (IRE) is a non-thermal ablation method that is especially suitable for the treatment of LAPC. This study aimed to compare the long-term survival of LAPC patients after induction chemotherapy followed by IRE and chemotherapy alone. METHODS From August 2015 to August 2017, a total of 132 patients with LAPC were identified. The oncological outcomes of these two treatments were analyzed by propensity score matching (PSM) analysis. RESULTS Before PSM analysis, patients with LAPC had better overall survival (OS) and progression-free survival (PFS) after induction chemotherapy followed by IRE than those who received chemotherapy alone (2-year OS rates, 57.9% vs 19.8%, P  less then  0.001; 2-year PFS rates, 31.4% vs 9.3%, P  less then  0.001). The baseline clinicopathological factors were balanced between the 2 groups through PSM analysis. Even after PSM, the OS and PFS rates of patients after induction chemotherapy followed by IRE treatment were superior to those of patients who received chemotherapy treatment alone (2-year OS rates, 57.9% vs 18.1%, P  less then  0.001; 2-year PFS rates, 31.4% vs 7.1%, P  less then  0.001). Multivariate Cox regression analysis indicated that chemotherapy plus IRE was a significant prognostic factor for both OS and PFS in patients of both the whole cohort and the matched cohort. CONCLUSIONS Induction chemotherapy followed by IRE provided better OS and PFS than chemotherapy alone for patients with LAPC. This combination method may be a more suitable treatment for patients with LAPC. Vocal fold polyp (VFP) is an exophytic gelatinous lesion with an atrophic epithelium. After behavioral and conservative management, phonomicrosurgery is the treatment of choice for VFPs with excellent outcomes in terms of lesion resolution and postoperative vocal function. Office-based potassium titanyl phosphate (KTP) laser ablation is a new treatment modality for VFPs but its efficacy for professional singers has yet to be validated. Reported is a consecutive series of six professional singers (with seven episodes of VFP) who, based on patient and provider preference, underwent in-office KTP laser ablation of VFP. Two polyps required two ablation procedures; otherwise, a single treatment was successful in resolution of VFP at a mean resolution time of 44 days. Singing voice handicap index 10 improved from a mean of 30.8 (range 4-40) to 6.0 (range 0-22). All patients resumed their professional singing careers without vocal limitations. Posttreatment videos were reviewed by three blinded fellowship trained laryngologists, who were not able to accurately predict the laterality of the polyp (52% correct, p = 0.99). Drug-susceptibility test (DST) is important for tuberculosis care; however, there are several pitfalls with the procedure. A 70-year-old woman was diagnosed with extensively drug-resistant tuberculosis based on the result of a DST using microdilution method. Because she had no history of medication for tuberculosis and the sputum acid-fast bacillus smear test turned negative during standard treatment, identification of the strain used for DST was performed. Consequently, the strain was found to be M. intracellulare. It was assumed that a colony of M. intracellulare that had existed in the preculture solid medium was selected and used for the DST. PURPOSE Unilateral posterior vertical insufficiency (PVI) is a growth defect of the mandibular condyle that results in a facial asymmetry. Various surgical procedures can be used to elongate the hypoplastic ramus. The aim of this study was to evaluate long-term aesthetic and architectural outcomes of vertical ramus osteotomy (VRO) in patients with unilateral PVI. MATERIALS AND METHODS Patients operated on with unilateral VRO were included in this retrospective study. Aesthetic and architectural parameters were evaluated on frontal photographs as well as on frontal and lateral cephalograms preoperatively, postoperatively, at 1-year and at the end of the follow-up. RESULTS A total of 48 patients were analyzed. The aesthetic assessment revealed significant correction of the chin deviation (CD) and of the lip commissural line tilt after VRO (p1 = 0.0038 and p2 = 0.0067, respectively) with stable results. The architectural analysis revealed significant improvement in the maxillary and mandibular occlusal planes, as well as the chin deviation (p  less then  0.
    0 Kommentare 0 Geteilt 126 Ansichten 0 Bewertungen

  • Aim The impact of severe weather events on Irish EDs has not yet been characterised. The aim of this study was to examine the impact of Storm Emma on the attendance patterns to an Irish ED. Methods Data was collected for 64hrs prior to the red alert (Pre-Red), 38hrs of the red alert (Red) and for the 256 hrs (10 days) post the red alert (Post-Red) during Storm Emma. A Comparison was made with the same time periods in 2017. Results There was a statistically significant decrease in attendance during the Red period in 2018, compared with 2017 (119 vs. 234, p less then 0.001), with a rebound surge in attendances in the Post-Red period (1,861 vs 1,578, p less then 0.001). Mean patient experience times were significantly longer in the Post-Red period in 2018 (9.5+/-9.5hrs vs 7.9+/-8.2hrs, p less then 0.001). Conclusion This study has detailed the impact of a severe weather event on an Irish ED and will help inform preparedness for the future.Aims Our aim was to determine the number of cases of aneuploidy which were prenatally diagnosed in our tertiary referral unit from 2005-2015 and to analyse the subsequent outcomes of Trisomies 13, 18 and 21(T13, T18 and T21). Methods This was a retrospective observational study. https://www.selleckchem.com/products/gs-9973.html We firstly determined the total number of prenatally diagnosed aneuploidies. We then analysed their subsequent outcomes including average gestation at miscarriage or IUD, mode of delivery and neonatal outcome. Results 402 cases of T13, T18 or T21 were identified of which 40% opted for expectant management. T18 was the most likely diagnosis to result in miscarriage, IUD or intrapartum death. The highest caesarean delivery rate was in T21. Conclusion With regards to T13 and T18, live birth rates show that some parents may achieve the goal of spending time with their baby in the immediate postpartum period. This information will act as a valuable resource in our counselling.Aim To investigate the impact of pre-treatment serum total prostate-specific antigen (PSA) level on prevalence of prostate carcinoma detection in prostate core needle biopsy, and its correlation with established prognostic factors. Methods Prostate needle biopsy samples of 115 patients with available pre-treatment serum total PSA (tPSA) level were analysed. For all cases where morphology alone was insufficient, immunohistochemistry was performed using p63, CKHMW and AMACR antibody panel in order to confirm or exclude the existence of prostate carcinoma. Results Statistically significant positive correlation between serum total PSA values and prevalence of finding prostate carcinoma in needle biopsy specimens was found (p=0.011), as well as in the case when the patients were classified into groups according to tPSA levels (p=0.028). Serum total PSA values and levels (level groups) showed significant positive correlation with Gleason score (p=0.029 and p=0.036, respectively) and Grade Group of prostate carcinomas (p=0.044 and p=0.046, respectively). Sensitivity of the screening test by using 4 ng/mL as cut off value for tPSA was 94.12% (CI 80.32-99.28%), specificity 8.64% (CI 3.55-17.00%), positive predictive value 30.19% (CI 21.65-39.87%) and negative predictive value 77.78% (CI 39.99-97.19%). Conclusion The increase of serum tPSA value increases the likelihood of finding prostate cancer on needle biopsy specimens. Due to such findings and its positive correlation with a grade of prostate cancer, our study indicates that tPSA can still be considered as a useful tool both in detecting and predicting aggressiveness of prostate cancer.Aim To compare oxidative stress state of children with nephrotic syndrome at the first week of treatment and in remission, and to predict malondialdehyde (MDA) level from routine laboratory tests. Methods This cross-sectional study involved 80 1-18 years old children with nephrotic syndrome, who were divided into two groups initial group (40 children in the first week of therapy) and remission group (40 children in remission). Demographic characteristics of the patients were taken by a questionnaire. Laboratory tests were measured in the initial group; in the remission group negative or trace proteinuria was measured for three consecutive days. Serum urea, creatinine, albumin, total cholesterol, MDA, superoxide dismutase, glutathione peroxidase, and urine albuminto-creatinine ratio (UACR) were measured and compared between the groups. Albumin, total cholesterol, and UACR were subjected to predict high serum MDA using a mean of all patients' MDA level as a cutoff. Results There were higher albumin levels and lower UACR, total cholesterol, and MDA in the remission group compared to the initial group. Albumin and UACR showed good accuracy, and total cholesterol showed very good accuracy to predict serum MDA level more than 1.35 µmol/L. Conclusion Children with nephrotic syndrome in the first week of therapy showed a higher oxidative stress state than the children in remission. Serum albumin, serum total cholesterol, and UACR can predict serum MDA level with good accuracy.Aim To evaluate the relationship between numerical and categorical immunohistochemical score of Ki-67 and human epidermal growth factor of receptor 2 (HER2) with clinicopathological parameters of breast cancer (**). Methods The study included 311 patients with invasive ** diagnosed at the Department of Pathology, School of Medicine in Sarajevo, Bosnia and Herzegovina, during the period 2015-2019. The expression level of Ki-67 and HER2 was detected by immunohistochemical analysis. Results The expression of Ki-67, as a numerical variable correlated significantly with tumour grade (p=0.025), progesterone receptor (PR) (p=0.034) and categorical score of HER2 (p=0.028). When Ki-67 was categorized into high (>14%) and low (≤14%) level groups, a statistically significant association was found between Ki-67 level groups and HER2 status (categorical and numerical) (p=0.001 and p=0.043, respectively), as well as significant negative linear correlation with PR (p=0.037). The expression of HER2, as a numerical variable, showed a statistically significant correlation with tumour grade (p=0.038), PR (p=0.025) and categorical Ki-67 (p=0.043). Categorical score of HER2 correlated significantly with age (p=0.025), histologic type (p=0.039), tumour grade (p=0.016), estrogen receptor (ER), (p=0.002) progesterone receptor (PR) (p=0.0001), and categorical and numerical value of Ki-67 (p=0.0001 and p=0.0001, respectively). Conclusion The results demonstrated that the categorical immunohistochemical score of HER2 provided a greater association with clinicopathological parameters than numerical score of **. Furthermore, a slightly better correlation with clinicopathological parameters was shown by the numerical value than by the categorical score of Ki-67 by applying a cut-off value of 14%.
    Aim The impact of severe weather events on Irish EDs has not yet been characterised. The aim of this study was to examine the impact of Storm Emma on the attendance patterns to an Irish ED. Methods Data was collected for 64hrs prior to the red alert (Pre-Red), 38hrs of the red alert (Red) and for the 256 hrs (10 days) post the red alert (Post-Red) during Storm Emma. A Comparison was made with the same time periods in 2017. Results There was a statistically significant decrease in attendance during the Red period in 2018, compared with 2017 (119 vs. 234, p less then 0.001), with a rebound surge in attendances in the Post-Red period (1,861 vs 1,578, p less then 0.001). Mean patient experience times were significantly longer in the Post-Red period in 2018 (9.5+/-9.5hrs vs 7.9+/-8.2hrs, p less then 0.001). Conclusion This study has detailed the impact of a severe weather event on an Irish ED and will help inform preparedness for the future.Aims Our aim was to determine the number of cases of aneuploidy which were prenatally diagnosed in our tertiary referral unit from 2005-2015 and to analyse the subsequent outcomes of Trisomies 13, 18 and 21(T13, T18 and T21). Methods This was a retrospective observational study. https://www.selleckchem.com/products/gs-9973.html We firstly determined the total number of prenatally diagnosed aneuploidies. We then analysed their subsequent outcomes including average gestation at miscarriage or IUD, mode of delivery and neonatal outcome. Results 402 cases of T13, T18 or T21 were identified of which 40% opted for expectant management. T18 was the most likely diagnosis to result in miscarriage, IUD or intrapartum death. The highest caesarean delivery rate was in T21. Conclusion With regards to T13 and T18, live birth rates show that some parents may achieve the goal of spending time with their baby in the immediate postpartum period. This information will act as a valuable resource in our counselling.Aim To investigate the impact of pre-treatment serum total prostate-specific antigen (PSA) level on prevalence of prostate carcinoma detection in prostate core needle biopsy, and its correlation with established prognostic factors. Methods Prostate needle biopsy samples of 115 patients with available pre-treatment serum total PSA (tPSA) level were analysed. For all cases where morphology alone was insufficient, immunohistochemistry was performed using p63, CKHMW and AMACR antibody panel in order to confirm or exclude the existence of prostate carcinoma. Results Statistically significant positive correlation between serum total PSA values and prevalence of finding prostate carcinoma in needle biopsy specimens was found (p=0.011), as well as in the case when the patients were classified into groups according to tPSA levels (p=0.028). Serum total PSA values and levels (level groups) showed significant positive correlation with Gleason score (p=0.029 and p=0.036, respectively) and Grade Group of prostate carcinomas (p=0.044 and p=0.046, respectively). Sensitivity of the screening test by using 4 ng/mL as cut off value for tPSA was 94.12% (CI 80.32-99.28%), specificity 8.64% (CI 3.55-17.00%), positive predictive value 30.19% (CI 21.65-39.87%) and negative predictive value 77.78% (CI 39.99-97.19%). Conclusion The increase of serum tPSA value increases the likelihood of finding prostate cancer on needle biopsy specimens. Due to such findings and its positive correlation with a grade of prostate cancer, our study indicates that tPSA can still be considered as a useful tool both in detecting and predicting aggressiveness of prostate cancer.Aim To compare oxidative stress state of children with nephrotic syndrome at the first week of treatment and in remission, and to predict malondialdehyde (MDA) level from routine laboratory tests. Methods This cross-sectional study involved 80 1-18 years old children with nephrotic syndrome, who were divided into two groups initial group (40 children in the first week of therapy) and remission group (40 children in remission). Demographic characteristics of the patients were taken by a questionnaire. Laboratory tests were measured in the initial group; in the remission group negative or trace proteinuria was measured for three consecutive days. Serum urea, creatinine, albumin, total cholesterol, MDA, superoxide dismutase, glutathione peroxidase, and urine albuminto-creatinine ratio (UACR) were measured and compared between the groups. Albumin, total cholesterol, and UACR were subjected to predict high serum MDA using a mean of all patients' MDA level as a cutoff. Results There were higher albumin levels and lower UACR, total cholesterol, and MDA in the remission group compared to the initial group. Albumin and UACR showed good accuracy, and total cholesterol showed very good accuracy to predict serum MDA level more than 1.35 µmol/L. Conclusion Children with nephrotic syndrome in the first week of therapy showed a higher oxidative stress state than the children in remission. Serum albumin, serum total cholesterol, and UACR can predict serum MDA level with good accuracy.Aim To evaluate the relationship between numerical and categorical immunohistochemical score of Ki-67 and human epidermal growth factor of receptor 2 (HER2) with clinicopathological parameters of breast cancer (BC). Methods The study included 311 patients with invasive BC diagnosed at the Department of Pathology, School of Medicine in Sarajevo, Bosnia and Herzegovina, during the period 2015-2019. The expression level of Ki-67 and HER2 was detected by immunohistochemical analysis. Results The expression of Ki-67, as a numerical variable correlated significantly with tumour grade (p=0.025), progesterone receptor (PR) (p=0.034) and categorical score of HER2 (p=0.028). When Ki-67 was categorized into high (>14%) and low (≤14%) level groups, a statistically significant association was found between Ki-67 level groups and HER2 status (categorical and numerical) (p=0.001 and p=0.043, respectively), as well as significant negative linear correlation with PR (p=0.037). The expression of HER2, as a numerical variable, showed a statistically significant correlation with tumour grade (p=0.038), PR (p=0.025) and categorical Ki-67 (p=0.043). Categorical score of HER2 correlated significantly with age (p=0.025), histologic type (p=0.039), tumour grade (p=0.016), estrogen receptor (ER), (p=0.002) progesterone receptor (PR) (p=0.0001), and categorical and numerical value of Ki-67 (p=0.0001 and p=0.0001, respectively). Conclusion The results demonstrated that the categorical immunohistochemical score of HER2 provided a greater association with clinicopathological parameters than numerical score of BC. Furthermore, a slightly better correlation with clinicopathological parameters was shown by the numerical value than by the categorical score of Ki-67 by applying a cut-off value of 14%.
    0 Kommentare 0 Geteilt 11 Ansichten 0 Bewertungen

  • v.) and intraperitoneal (i.p.) administration. Opioid receptor antagonists and MC4 receptor agonists diminished the analgesic action of these two hybrids studied, though the extent of this effect differed between the hybrids; this suggests that linker is of key importance here. Further results indicate a significant advantage of hybrid compounds over the physical mixture of individual pharmacophores in their analgesic effect. All this evidence justifies the idea of synthesizing a bifunctional opioid agonist-linker-MC4 antagonist compound, as such structure may bring important benefits in neuropathic pain treatment.
    This study aimed to clarify the resting-state cerebral blood flow alteration patterns induced by primary dysmenorrhea, investigate the relationships between cerebral blood flow alterations and clinical parameters of patients with primary dysmenorrhea, and explore whether brain regions with abnormal cerebral blood flow also feature functional connectivity changes.

    Arterial spin labeling imaging and clinical parameters were acquired in 42 patients with primary dysmenorrhea and 41 healthy controls during their menstrual phases. Differences in cerebral blood flow were compared between the two groups, and the clusters with significant group differences were selected as the regions of interest for further statistical analyses.

    Compared to healthy controls, patients with primary dysmenorrhea exhibited increased cerebral blood flow in the bilateral precuneus, left posterior cingulate cortex, and right rolandic operculum. Among patients with primary dysmenorrhea, we identified a negative correlation between the reas comprising the default mode network in primary dysmenorrhea patients, which could be involved in the central mechanism of primary dysmenorrhea. Cerebral blood flow alteration in the rolandic operculum may underlie an anxiety-induced compulsive tendency in patients with primary dysmenorrhea. Investigating the enhanced connectivity among various pain-related brain regions could improve understanding of the onset and development of primary dysmenorrhea.Smoking is a significant risk factor for the development of metabolic diseases. Due to social pressures to quit smoking, many pregnant women are vaping as an alternative nicotine source. However, the metabolic consequences of replacing tobacco cigarettes with e-cigarettes during pregnancy are unknown. Therefore, in the mothers and their offspring, we investigated the metabolic and hepatic impacts of replacing cigarette smoke with e-vapour during pregnancy. Female BALB/c **** were either air-exposed or cigarette smoke-exposed (SE) from six weeks before pregnancy until lactation. At mating, a subset of the SE **** were instead exposed to e-vapour. Markers of glucose and lipid metabolism were measured in the livers and plasma, from the mothers and their male offspring (13 weeks). In the SE mothers, plasma insulin levels were reduced, leading to downstream increases in hepatic gluconeogenesis and plasma non-esterified fatty acids (NEFA). In the e-vapour replacement mothers, these changes were not as significant. https://www.selleckchem.com/products/3-deazaneplanocin-a-dznep.html In the SE offspring, there was impaired glucose tolerance, and increased plasma NEFA and liver triglyceride concentrations. E-vapour replacement restored lipid homeostasis but did not improve glucose tolerance. Therefore, in a murine model, low dose e-cigarette replacement during pregnancy is less toxic than cigarette smoke.
    The incidence and outcomes of coronavirus disease 2019 (COVID-19) in immunocompromised patients are a matter of debate.

    We performed a prospective nationwide study including a consecutive cohort of liver transplant patients with COVID-19 recruited during the Spanish outbreak from 28 February to 7 April, 2020. The primary outcome was severe COVID-19, defined as the need for mechanical ventilation, intensive care, and/or death. Age- and gender-standardised incidence and mortality ratios (SIR and SMR) were calculated using data from the Ministry of Health and the Spanish liver transplant registry. Independent predictors of severe COVID-19 among hospitalised patients were analysed using multivariate Cox regression.

    A total of 111 liver transplant patients were diagnosed with COVID-19 (SIR= 191.2 [95% CI 190.3-192.2]). The epidemiological curve and geographic distribution overlapped widely between the liver transplant and general populations. After a median follow-up of 23 days, 96 patients (86.5%) were admin liver transplant patients, chronic immunosuppression increases the risk of acquiring COVID-19 but it could reduce disease severity. Complete immunosuppression withdrawal may not be justified. However, mycophenolate withdrawal or temporary conversion to calcineurin inhibitors or everolimus until disease resolution could be beneficial in hospitalised patients.
    In liver transplant patients, chronic immunosuppression increases the risk of acquiring COVID-19 but it could reduce disease severity. Complete immunosuppression withdrawal may not be justified. However, mycophenolate withdrawal or temporary conversion to calcineurin inhibitors or everolimus until disease resolution could be beneficial in hospitalised patients.For decades, bone drug delivery systems dedicated for osteomyelitis treatment have been investigated as bifunctional materials that exhibit prolonged drug release and mineralization potential. Herein, composite-type pellets based on cefazolin-loaded amino-modified mesoporous silica SBA-15 and microwave-assisted hydroxyapatite were investigated as potential bone drug delivery system in vitro. Pellets were obtained by granulation, extrusion and spheronization methods in laboratory scale and studied in terms of physical properties, drug release, mineralization potential, antimicrobial activity and cytotoxicity towards human osteoblasts. The obtained pellets were characterized for hardness and friability which indicated the pellets durability during further investigations. Prolonged (5-day) release of cefazolin from pellets was observed. The pellets exhibited mineralization potential in simulated body fluid, i.e., a continuous layer of bone-like apatite was formed on the surface of pellets after 28 days of incubation.
    v.) and intraperitoneal (i.p.) administration. Opioid receptor antagonists and MC4 receptor agonists diminished the analgesic action of these two hybrids studied, though the extent of this effect differed between the hybrids; this suggests that linker is of key importance here. Further results indicate a significant advantage of hybrid compounds over the physical mixture of individual pharmacophores in their analgesic effect. All this evidence justifies the idea of synthesizing a bifunctional opioid agonist-linker-MC4 antagonist compound, as such structure may bring important benefits in neuropathic pain treatment. This study aimed to clarify the resting-state cerebral blood flow alteration patterns induced by primary dysmenorrhea, investigate the relationships between cerebral blood flow alterations and clinical parameters of patients with primary dysmenorrhea, and explore whether brain regions with abnormal cerebral blood flow also feature functional connectivity changes. Arterial spin labeling imaging and clinical parameters were acquired in 42 patients with primary dysmenorrhea and 41 healthy controls during their menstrual phases. Differences in cerebral blood flow were compared between the two groups, and the clusters with significant group differences were selected as the regions of interest for further statistical analyses. Compared to healthy controls, patients with primary dysmenorrhea exhibited increased cerebral blood flow in the bilateral precuneus, left posterior cingulate cortex, and right rolandic operculum. Among patients with primary dysmenorrhea, we identified a negative correlation between the reas comprising the default mode network in primary dysmenorrhea patients, which could be involved in the central mechanism of primary dysmenorrhea. Cerebral blood flow alteration in the rolandic operculum may underlie an anxiety-induced compulsive tendency in patients with primary dysmenorrhea. Investigating the enhanced connectivity among various pain-related brain regions could improve understanding of the onset and development of primary dysmenorrhea.Smoking is a significant risk factor for the development of metabolic diseases. Due to social pressures to quit smoking, many pregnant women are vaping as an alternative nicotine source. However, the metabolic consequences of replacing tobacco cigarettes with e-cigarettes during pregnancy are unknown. Therefore, in the mothers and their offspring, we investigated the metabolic and hepatic impacts of replacing cigarette smoke with e-vapour during pregnancy. Female BALB/c mice were either air-exposed or cigarette smoke-exposed (SE) from six weeks before pregnancy until lactation. At mating, a subset of the SE mice were instead exposed to e-vapour. Markers of glucose and lipid metabolism were measured in the livers and plasma, from the mothers and their male offspring (13 weeks). In the SE mothers, plasma insulin levels were reduced, leading to downstream increases in hepatic gluconeogenesis and plasma non-esterified fatty acids (NEFA). In the e-vapour replacement mothers, these changes were not as significant. https://www.selleckchem.com/products/3-deazaneplanocin-a-dznep.html In the SE offspring, there was impaired glucose tolerance, and increased plasma NEFA and liver triglyceride concentrations. E-vapour replacement restored lipid homeostasis but did not improve glucose tolerance. Therefore, in a murine model, low dose e-cigarette replacement during pregnancy is less toxic than cigarette smoke. The incidence and outcomes of coronavirus disease 2019 (COVID-19) in immunocompromised patients are a matter of debate. We performed a prospective nationwide study including a consecutive cohort of liver transplant patients with COVID-19 recruited during the Spanish outbreak from 28 February to 7 April, 2020. The primary outcome was severe COVID-19, defined as the need for mechanical ventilation, intensive care, and/or death. Age- and gender-standardised incidence and mortality ratios (SIR and SMR) were calculated using data from the Ministry of Health and the Spanish liver transplant registry. Independent predictors of severe COVID-19 among hospitalised patients were analysed using multivariate Cox regression. A total of 111 liver transplant patients were diagnosed with COVID-19 (SIR= 191.2 [95% CI 190.3-192.2]). The epidemiological curve and geographic distribution overlapped widely between the liver transplant and general populations. After a median follow-up of 23 days, 96 patients (86.5%) were admin liver transplant patients, chronic immunosuppression increases the risk of acquiring COVID-19 but it could reduce disease severity. Complete immunosuppression withdrawal may not be justified. However, mycophenolate withdrawal or temporary conversion to calcineurin inhibitors or everolimus until disease resolution could be beneficial in hospitalised patients. In liver transplant patients, chronic immunosuppression increases the risk of acquiring COVID-19 but it could reduce disease severity. Complete immunosuppression withdrawal may not be justified. However, mycophenolate withdrawal or temporary conversion to calcineurin inhibitors or everolimus until disease resolution could be beneficial in hospitalised patients.For decades, bone drug delivery systems dedicated for osteomyelitis treatment have been investigated as bifunctional materials that exhibit prolonged drug release and mineralization potential. Herein, composite-type pellets based on cefazolin-loaded amino-modified mesoporous silica SBA-15 and microwave-assisted hydroxyapatite were investigated as potential bone drug delivery system in vitro. Pellets were obtained by granulation, extrusion and spheronization methods in laboratory scale and studied in terms of physical properties, drug release, mineralization potential, antimicrobial activity and cytotoxicity towards human osteoblasts. The obtained pellets were characterized for hardness and friability which indicated the pellets durability during further investigations. Prolonged (5-day) release of cefazolin from pellets was observed. The pellets exhibited mineralization potential in simulated body fluid, i.e., a continuous layer of bone-like apatite was formed on the surface of pellets after 28 days of incubation.
    0 Kommentare 0 Geteilt 28 Ansichten 0 Bewertungen

  • Vitamin D and calcium supplementation have been posited to improve body composition and different formulations of calcium may impact bioavailability. However, data are lacking regarding the combinatorial effects of exercise, diet, and calcium and/or vitamin D supplementation on body composition changes in post-menopausal women. Herein, 128 post-menopausal women (51.3 ± 4.5 years, 36.4 ± 5.7 kg/m2, 46.2 ± 4.5% fat) were assigned to diet and supplement groups while participating in a supervised circuit-style resistance-training program (3 d/week) over a 14-week period. Diet groups included (1) normal diet (CTL), (2) a low-calorie, higher protein diet (LCHP; 1600 kcal/day, 15% carbohydrates, 55% protein, 30% fat), and (3) a low-calorie, higher carbohydrate diet (LCHC; 1600 kcal/day, 55% carbohydrates, 15% protein, 30% fat). Supplement groups consisted of (1) maltodextrin (PLA), (2) 800 mg/day of calcium carbonate (Ca), and (3) 800 mg/day of calcium citrate and malate and 400 IU/day of vitamin D (Ca+D). Fasting bition resulted when adding Ca or Ca+D to the LCHP regimen in comparison to when PLA was added to the LCHP diet. When combined with an energy-restricted, higher carbohydrate diet, adding 800 mg of Ca carbonate stimulated greater body mass loss compared to when a PLA was added. Alternatively, adding Ca+D to the LCHC diet promoted greater% fat changes and attenuation of fat-free mass loss. Our results expand upon current literature regarding the impact of calcium supplementation with dieting and regular exercise. This data highlights that different forms of calcium in combination with an energy restricted, higher carbohydrate diet may trigger changes in body mass or body composition while no impact of calcium supplementation was observed when participants followed an energy restricted, higher protein diet.Mechanical forces acting on biological systems, at both the macroscopic and microscopic levels, play an important part in shaping cellular phenotypes. There is a growing realization that biomolecules that respond to force directly applied to them, or via mechano-sensitive signalling pathways, can produce profound changes to not only transcriptional pathways, but also in protein translation. Forces naturally occurring at the molecular level can impact the rate at which the bacterial ribosome translates messenger RNA (mRNA) transcripts and influence processes such as co-translational folding of a nascent protein as it exits the ribosome. In eukaryotes, force can also be transduced at the cellular level by the cytoskeleton, the cell's internal filamentous network. The cytoskeleton closely associates with components of the translational machinery such as ribosomes and elongation factors and, as such, is a crucial determinant of localized protein translation. In this review we will give (1) a brief overview of protein translation in bacteria and eukaryotes and then discuss (2) how mechanical forces are directly involved with ribosomes during active protein synthesis and (3) how eukaryotic ribosomes and other protein translation machinery intimately associates with the mechanosensitive cytoskeleton network.Melanoma is the deadliest form of skin cancer, and its incidence has continuously increased over the past 20 years. Therefore, the discovery of a novel targeted therapeutic strategy for melanoma is urgently needed. In our study, MTT-based cell proliferation assay, cell cycle, and apoptosis assays through flow cytometry, protein immunoblotting, protein immunoprecipitation, designing of melanoma xenograft models, and immunohistochemical/immunofluorescent assays were carried out to determine the detailed molecular mechanisms of a novel HSP90-PI3K dual inhibitor. Our compound, named DHP1808, was found to suppress A375 cell proliferation through apoptosis induction by activating the Fas/FasL signaling pathway; it also induced cell-cycle arrest and inhibited the cell migration and invasion of A375 cells by interfering with Hsp90-EGFR interactions and downstream signaling pathways. Our results indicate that DHP1808 could be a promising lead compound for the Hsp90/PI3K dual inhibitor.This paper presents a microlens fabrication process using the timed-development-and-thermal-reflow process, which can fabricate various types of aperture geometry with a parabolic profile on a single substrate in the same batch of the process. By controlling the development time of the uncrosslinked negative photoresist, a state of partial development of the photoresist is achieved, called the timed development process. The thermal reflow process is followed after the timed development, which allows the photoresist to regain its liquid state to form a smooth meniscus trench surrounded by a crosslinked photoresist sidewall. Microlens with larger aperture size forms deeper trench with constant development time. With constant aperture size, longer developing time shows deeper meniscus trench. The depth of the meniscus trench is modeled in the relationship of the development time and aperture size. Other characteristics for the microlens including the radius of curvature, focal length, and the parabolic surface profile are modeled in the relationship of the microlens thickness and diameter. Microlens with circular, square, and hexagonal bases have been successfully fabricated and demonstrated where each geometry of the lens-bases shows different fill factors of the lens arrays. To test the fabricated lenses, a miniaturized projection lithography scheme was proposed. A centimeter-scale photomask pattern was photo-reduced using the fabricated microlens array with a ratio of 133, where the smallest linewidth was measured as 2.6 µm.In Sub-Saharan Africa, being overweight in childhood is rapidly rising while stunting is still remaining at unacceptable levels. A key contributor to this double burden of malnutrition is dietary changes associated with nutrition transition. Although the importance of socio-economic drivers is known, there is limited knowledge about their stratification and relative importance to diet and to different forms of malnutrition. The aim of this study was to assess diet diversity and malnutrition in preschoolers and evaluate the relative importance of socioeconomic resources. Households with children under five (5467) were enrolled using a multi-stage sampling procedure. Standardized tools and procedures were used to collect data on diet, anthropometry and socio-economic factors. Multivariable analysis with cluster adjustment was performed. The prevalence of stunting was 19.6% (18.5-20.6), wasting 3.2% (2.8-3.7), and overweight/obesity 11.4% (10.6-12.2). https://www.selleckchem.com/products/acy-775.html Stunting, overweight, wasting and limited diet diversity was present in all social strata.
    Vitamin D and calcium supplementation have been posited to improve body composition and different formulations of calcium may impact bioavailability. However, data are lacking regarding the combinatorial effects of exercise, diet, and calcium and/or vitamin D supplementation on body composition changes in post-menopausal women. Herein, 128 post-menopausal women (51.3 ± 4.5 years, 36.4 ± 5.7 kg/m2, 46.2 ± 4.5% fat) were assigned to diet and supplement groups while participating in a supervised circuit-style resistance-training program (3 d/week) over a 14-week period. Diet groups included (1) normal diet (CTL), (2) a low-calorie, higher protein diet (LCHP; 1600 kcal/day, 15% carbohydrates, 55% protein, 30% fat), and (3) a low-calorie, higher carbohydrate diet (LCHC; 1600 kcal/day, 55% carbohydrates, 15% protein, 30% fat). Supplement groups consisted of (1) maltodextrin (PLA), (2) 800 mg/day of calcium carbonate (Ca), and (3) 800 mg/day of calcium citrate and malate and 400 IU/day of vitamin D (Ca+D). Fasting bition resulted when adding Ca or Ca+D to the LCHP regimen in comparison to when PLA was added to the LCHP diet. When combined with an energy-restricted, higher carbohydrate diet, adding 800 mg of Ca carbonate stimulated greater body mass loss compared to when a PLA was added. Alternatively, adding Ca+D to the LCHC diet promoted greater% fat changes and attenuation of fat-free mass loss. Our results expand upon current literature regarding the impact of calcium supplementation with dieting and regular exercise. This data highlights that different forms of calcium in combination with an energy restricted, higher carbohydrate diet may trigger changes in body mass or body composition while no impact of calcium supplementation was observed when participants followed an energy restricted, higher protein diet.Mechanical forces acting on biological systems, at both the macroscopic and microscopic levels, play an important part in shaping cellular phenotypes. There is a growing realization that biomolecules that respond to force directly applied to them, or via mechano-sensitive signalling pathways, can produce profound changes to not only transcriptional pathways, but also in protein translation. Forces naturally occurring at the molecular level can impact the rate at which the bacterial ribosome translates messenger RNA (mRNA) transcripts and influence processes such as co-translational folding of a nascent protein as it exits the ribosome. In eukaryotes, force can also be transduced at the cellular level by the cytoskeleton, the cell's internal filamentous network. The cytoskeleton closely associates with components of the translational machinery such as ribosomes and elongation factors and, as such, is a crucial determinant of localized protein translation. In this review we will give (1) a brief overview of protein translation in bacteria and eukaryotes and then discuss (2) how mechanical forces are directly involved with ribosomes during active protein synthesis and (3) how eukaryotic ribosomes and other protein translation machinery intimately associates with the mechanosensitive cytoskeleton network.Melanoma is the deadliest form of skin cancer, and its incidence has continuously increased over the past 20 years. Therefore, the discovery of a novel targeted therapeutic strategy for melanoma is urgently needed. In our study, MTT-based cell proliferation assay, cell cycle, and apoptosis assays through flow cytometry, protein immunoblotting, protein immunoprecipitation, designing of melanoma xenograft models, and immunohistochemical/immunofluorescent assays were carried out to determine the detailed molecular mechanisms of a novel HSP90-PI3K dual inhibitor. Our compound, named DHP1808, was found to suppress A375 cell proliferation through apoptosis induction by activating the Fas/FasL signaling pathway; it also induced cell-cycle arrest and inhibited the cell migration and invasion of A375 cells by interfering with Hsp90-EGFR interactions and downstream signaling pathways. Our results indicate that DHP1808 could be a promising lead compound for the Hsp90/PI3K dual inhibitor.This paper presents a microlens fabrication process using the timed-development-and-thermal-reflow process, which can fabricate various types of aperture geometry with a parabolic profile on a single substrate in the same batch of the process. By controlling the development time of the uncrosslinked negative photoresist, a state of partial development of the photoresist is achieved, called the timed development process. The thermal reflow process is followed after the timed development, which allows the photoresist to regain its liquid state to form a smooth meniscus trench surrounded by a crosslinked photoresist sidewall. Microlens with larger aperture size forms deeper trench with constant development time. With constant aperture size, longer developing time shows deeper meniscus trench. The depth of the meniscus trench is modeled in the relationship of the development time and aperture size. Other characteristics for the microlens including the radius of curvature, focal length, and the parabolic surface profile are modeled in the relationship of the microlens thickness and diameter. Microlens with circular, square, and hexagonal bases have been successfully fabricated and demonstrated where each geometry of the lens-bases shows different fill factors of the lens arrays. To test the fabricated lenses, a miniaturized projection lithography scheme was proposed. A centimeter-scale photomask pattern was photo-reduced using the fabricated microlens array with a ratio of 133, where the smallest linewidth was measured as 2.6 µm.In Sub-Saharan Africa, being overweight in childhood is rapidly rising while stunting is still remaining at unacceptable levels. A key contributor to this double burden of malnutrition is dietary changes associated with nutrition transition. Although the importance of socio-economic drivers is known, there is limited knowledge about their stratification and relative importance to diet and to different forms of malnutrition. The aim of this study was to assess diet diversity and malnutrition in preschoolers and evaluate the relative importance of socioeconomic resources. Households with children under five (5467) were enrolled using a multi-stage sampling procedure. Standardized tools and procedures were used to collect data on diet, anthropometry and socio-economic factors. Multivariable analysis with cluster adjustment was performed. The prevalence of stunting was 19.6% (18.5-20.6), wasting 3.2% (2.8-3.7), and overweight/obesity 11.4% (10.6-12.2). https://www.selleckchem.com/products/acy-775.html Stunting, overweight, wasting and limited diet diversity was present in all social strata.
    0 Kommentare 0 Geteilt 17 Ansichten 0 Bewertungen
Mehr Storys