• Roth Cole posted an update 4 hours, 38 minutes ago

    Recent genome-wide association studies (GWAS) have found cerebellum as a top hit for sleep regulation. Restless legs syndrome (RLS) is a sleep-related sensorimotor disorder characterized by uncomfortable sensations in the extremities, generally at night, which is often relieved by movements. Clinical studies have found that RLS patients have structural and functional abnormalities in the cerebellum. However, whether and how cerebellar pathology contributes to sleep regulation and RLS is not known. GWAS identified polymorphisms in BTBD9 conferring a higher risk of sleep disruption and RLS. Knockout of the BTBD9 homolog in mice (Btbd9) and fly results in motor restlessness and sleep disruption. We performed manganese-enhanced magnetic resonance imaging on the Btbd9 knockout mice and found decreased neural activities in the cerebellum, especially in lobules VIII, X, and the deep cerebellar nuclei. Electrophysiological recording of Purkinje cells (PCs) from Btbd9 knockout mice revealed an increased number of non-tonic PCs. Tonic PCs showed increased spontaneous activity and intrinsic excitability. To further investigate the cerebellar contribution to RLS and sleep-like behaviors, we generated PC-specific Btbd9 knockout mice (Btbd9 pKO) and performed behavioral studies. Btbd9 pKO mice showed significant motor restlessness during the rest phase but not in the active phase. Btbd9 pKO mice also had an increased probability of waking at rest. Unlike the Btbd9 knockout mice, there was no increased thermal sensation in the Btbd9 pKO. Our results indicate that the Btbd9 knockout influences the PC activity; dysfunction in the cerebellum may contribute to the motor restlessness found in the Btbd9 knockout mice.Background Population-level data regarding incidences of immune-related adverse events (irAEs) are lacking. Zelavespib ic50 This study evaluated the frequencies of irAEs among patients with non-small-cell lung cancer (NSCLC) who received immune checkpoint inhibitors. Patients and methods Administrative claims data from a large United States commercial insurance database (OptumLabs Data Warehouse) were used to retrospectively identify patients with NSCLC between January 1, 2015 and December 31, 2017 who received a programmed death-ligand 1/programmed cell death protein-1 (PD(L)-1) inhibitor. Cumulative risks for irAEs were estimated at 1, 3, 6, 9, and 12 months after initiation of a PD-(L)1 inhibitor. Additionally, associations between patient characteristics and frequency of irAEs were investigated utilizing multivariate logistic modeling. Results The risk of developing any irAE was 52.5% (95% confidence interval, 49.9%-55.2%) after 12 months in 3164 patients with NSCLC who initiated a PD-(L)1 inhibitor (median age, 69.0 years; 1763 [55.7%] males; 1401 [44.3%] females). Cumulative risks of irAEs increased over time pneumonitis was recorded in 2.5% of patients 1 month after initiation of treatment, and increased to 14.3% after 9 months. Risks of hypophysitis and pericarditis were 3.6% and 1.7% at 9 months, respectively. Patients who received PD-(L)1 inhibitors in the first line had lower frequencies of irAEs (hazard ratio, 0.77; 95% confidence interval, 0.67-0.87). Conclusion Our findings suggest that the frequencies of some irAEs may be higher than the rates reported in the pivotal trials that led to United States Food and Drug Administration approvals for PD-(L)1 inhibitors. These real-world data refine provider and patient expectations for outcomes in a broader population beyond what is observed in clinical trials.Objective To review the impact of single nucleotide polymorphisms (SNPs) of the vascular endothelial growth factor (VEGF) gene in the development and severity of endometriosis. Search strategy We searched Medline, Scopus, Clinicaltrials.gov, EMBASE, Cochrane Central Register of Controlled Trials CENTRAL and Google Scholar databases for published studies in the field. Selection criteria We included prospective and retrospective observational studies. Data collection and analysis Data extraction was performed using a modified data form that was based in Cochrane`s data collection form for intervention reviews. Main results Twenty studies were included that investigated the frequency of the various alleles of the -460C/T, +405 G/C, +936C/T, -2578A/C and -1154 G/A SNPs. The Hardy-Weinberg equilibrium revealed that the different genotypes were comparable among patients with endometriosis and control women, as well as among patients with mild and severe forms of the disease. No differences were observed in the expression of the various alleles in the majority of cases. Ethnical variations were observed; however, the results should be regarded as inconclusive due to the small amount of available data. Conclusions The results of our meta-analysis suggest that the investigated single nucleotide polymorphisms are unlikely to significantly contribute to the development and severity of endometriosis.Background Diagnostic coagulation testing is vulnerable to factors of the pre-analytical phase such as sample centrifugation. Despite this, centrifugation conditions differ widely among European laboratories. Here we use samples from patients referred for Activated partial thromboplastin time (APTT) testing to investigate if different centrifugation conditions result in platelet-poor plasma (PPP) (plasma platelet count 37 s) showed a statistically significant difference (p = 0.025). The Bland Altman plot did not reveal a clinically significant difference (mean difference 0.30 s/0.68%) when compared to a maximum acceptable bias of 10%. Conclusion None of the centrifugation conditions used in this study adequately secured PPP for all samples. Despite a statistically significant difference between samples with prolonged APTT, no clinically significant difference was observed when comparing all APTT measurements.Objective To develop, implement, and evaluate a patient simulation to assess Nutrition-Focused Physical Exam (NFPE) skills among dietetics students. Methods Three student cohorts (n = 47) in a combined internship and master’s program participated. Curricula included (1) formal instruction with practice resources, (2) baseline NFPE evaluation performed on a classmate, and (3) final NFPE evaluation performed on a standardized patient. Trained observers evaluated students using the NFPE Skills Assessment tool. Self-rated performance was assessed by the 8-item survey completed at baseline and after the final evaluation. Paired t tests analyzed differences in observed NFPE skill, and 1-tailed Wilcoxon signed-rank test analyzed differences in survey responses. Results Nutrition-Focused Physical Exam skill improvements were observed for each cohort (P less then .05). Surveys demonstrated increased comfort touching patients (P less then .001), and improved self-rated abilities to assess subcutaneous fat, muscle stores, fluid accumulation, and micronutrient deficiency (P less then .