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Gliomas remain a group of malignant brain tumors with dismal prognosis and limited treatment options with molecular mechanisms being constantly investigated. The past decade, extracellular stress and intracellular DNA damage have been shown to disturb proteostasis leading to Endoplasmic Reticulum (ER) stress that is implicated in the regulation of gene expression and the pathogenesis of several tumor types, including gliomas. Upon ER stress induction, neoplastic cells activate the adaptive mechanism of unfolded protein response (UPR), an integrated signaling system that either restores ER homeostasis or induces cell apoptosis. Recently, the manipulation of the UPR has emerged as a new therapeutic target in glioma treatment. General UPR activators or selective GRP78, ATF6 and PERK inducers have been detected to modulate cell proliferation and induce apoptosis of glioma cells. At the same time, target-specific UPR inhibitors and small molecule proteostasis disruptors, work in reverse to increase misfolded proteins and cause a dysregulation in protein maturation and sorting, thus preventing the growth of neoplastic cells. Herein, we discuss the pathogenic implication of ER stress in gliomas onset and progression, providing an update on the current UPR modifying agents that can be potentially used in glioma treatment. Elevated GSK-3 activity has been implicated in cognitive dysfunction associated with various disorders including Alzheimer's disease, schizophrenia, type 2 diabetes, traumatic brain injury, major depressive disorder and bipolar disorder. Further, aberrant neural oscillatory activity in, and between, cortical regions and the hippocampus is consistently present within these same cognitive disorders. In this review, we will put forth the idea that increased GSK-3 activity serves as a pathological convergence point across cognitive disorders, inducing similar consequent impacts on downstream signaling mechanisms implicated in the maintenance of processes critical to brain systems communication and normal cognitive functioning. In this regard we suggest that increased activation of GSK-3 and neuronal oscillatory dysfunction are early pathological changes that may be functionally linked. Mechanistic commonalities between these disorders of cognitive dysfunction will be discussed and potential downstream targets of GSK-3 that may contribute to neuronal oscillatory dysfunction identified. The prevalence of autism spectrum disorders (ASD) is increasing, but its etiology remains elusive and hence an effective treatment is not available. Previous research conducted on animal models suggests that microbiota-gut-brain axis may contribute to ASD pathology and hence more human research is needed. This study was divided into two stages, at the discovery stage, we compared the difference in gut microbiota profiles (using 16S rRNA sequencing), fecal SCFAs (using GC-MS) and plasma neurotransmitters (using UHPLC-MS/MS) of 26 children with ASD and 24 normal children. All 26 children with ASD participated in the intervention stage, and we measured the gut microbiota profiles, SCFAs and neurotransmitters before and after probiotics + FOS (n = 16) or placebo supplementation (n = 10). We found that gut microbiota was in a state of dysbiosis and significantly lower levels of Bifidobacteriales and Bifidobacterium longum were found at the discovery stage in children with ASD. An increase in beneficial bacteria (Byper-serotonergic state and dopamine metabolism disorder. OBJECTIVE Roux-en-Y gastric bypass surgery (RYGB) can achieve long-term remission of type 2 diabetes. However, the specific molecular mechanism through which this occurs has remained largely elusive. Bile acid signaling through the nuclear hormone receptor farnesoid X receptor (FXR) exerts beneficial effects after sleeve gastrectomy (VSG), which has similar effects to RYGB. Therefore, we investigated whether FXR signaling is necessary to mediate glycemic control after RYGB. METHODS RYGB or sham surgery was performed in high-fat diet-induced obese FXR-/- (knockout) and FXR+/+ (wild type) littermates. Sham-operated mice were fed ad libitum (S-AL) or by weight matching (S-WM) to RYGB mice via caloric restriction. Body weight, body composition, food intake, energy expenditure, glucose tolerance tests, insulin tolerance tests, and homeostatic model assessment of insulin resistance were performed. RESULTS RYGB surgery decreases body weight and fat mass in WT and FXR-KO mice. RYGB surgery has similar effects on food intake and energy expenditure independent of genotype. In addition, body weight-independent improvements in glucose control were attenuated in FXR -/- relative to FXR +/+ mice after RYGB. Furthermore, pharmacologic blockade of the glucagon-like peptide-1 receptor (GLP-1R) blunts the glucoregulatory effects of RYGB in FXR +/+ but not in FXR -/- mice at 4 weeks after surgery. CONCLUSIONS These results suggest that FXR signaling is not required for the weight loss up to 16 weeks after RYGB. Although most of the improvements in glucose homeostasis are secondary to RYGB-induced weight loss in wild type mice, FXR signaling contributes to glycemic control after RYGB in a body weight-independent manner, which might be mediated by an FXR-GLP-1 axis during the early postoperative period. Dendrolimus punctatus Walker (Lepidoptera Lasiocampidae) is a pine caterpillar moth distributed in most areas of southern China and is an economically important pest of pine, due to its defoliation activity. Understanding fundamental sex pheromone perception mechanisms in D. punctatus may provide effective and sustainable options for novel control strategies. However, the identification and function of pheromone receptors, key genes that receipt the pheromone of this pest, are both unclear now. Previous researches suggested several candidate pheromone receptors whose expression levels were male antennae bias in D. punctatus. Etomoxir order In this study, we cloned six candidate pheromone receptors (DpunOR 20/45/46/51/54/58) and Orco from D. punctatus. Phylogenetic tree analysis showed that lepidopteran PRs tend to be conserved and clustered together; however, D. punctatus candidate PRs were located in a distinct clade. Motif analysis of PRs showed clear sequences differences between Dendrolimus spp. and other tested moth species. To illustrate the ligand response properties of the candidate PRs of D. punctatus, each of the six genes was expressed with an Orco gene in Xenopus oocytes and using two-electrode voltage-clamp recordings. Finally, we successfully identified two sex pheromone receptors (PR45 and PR46). Our study, which identified a novel lineage of PRs tuned to Type I pheromones in Lepidoptera, provides evidence for the new evolution origin of sex pheromone communication in moths, and lays a foundation for the development of novel control strategies of D. punctatus. OBJECTIVES The objective of this study was to determine risk factors for progression to hemodynamically significant tricuspid regurgitation (TR) and the population burden attributable to these risk factors. BACKGROUND Few data are available with regard to risk factors associated with the development of hemodynamically significant functional TR. METHODS A total of 1,552 subjects were studied beginning with an index echocardiogram demonstrating trivial or mild TR. Risk factors for progression to moderate or severe TR were determined by using logistic regression and classification trees. Population attributable fractions were calculated for each risk factor. RESULTS During a median follow-up time of 38 (interquartile range [IQR] 26 to 63) months, 292 patients (18.8%) developed moderate/severe TR. Independent predictors of TR progression were age, female sex, heart failure, pacemaker electrode, atrial fibrillation (AF), and indicators of left heart disease, including left atrial (LA) enlargement, elevated pulmonaisease. Although obesity is typically defined by body mass index criteria, this does not differentiate true body fatness, as this includes both body fat and muscle. Therefore, other fat depots may better define cardiometabolic and cardiovascular disease (CVD) risk imposed by obesity. Data from translational, epidemiological, and clinical studies over the past 3 decades have clearly demonstrated that accumulation of adiposity in the abdominal viscera and within tissue depots lacking physiological adipose tissue storage capacity (termed "ectopic fat") is strongly associated with the development of a clinical syndrome characterized by atherogenic dyslipidemia, hyperinsulinemia/glucose intolerance/type 2 diabetes mellitus, hypertension, atherosclerosis, and abnormal cardiac remodeling and heart failure. This state-of-the-art paper discusses the impact of various body fat depots on cardiometabolic parameters and CVD risk. Specifically, it reviews novel and emerging imaging techniques to evaluate adiposity and the risk of cardiometabolic diseases and CVD. OBJECTIVES This study compared the performance of the quantitative flow ratio (QFR) with single-photon emission computed tomography (SPECT) and positron emission tomography (PET) myocardial perfusion imaging (MPI) for the diagnosis of fractional flow reserve (FFR)-defined coronary artery disease (CAD). BACKGROUND QFR estimates FFR solely based on cine contrast images acquired during invasive coronary angiography (ICA). Head-to-head studies comparing QFR with noninvasive MPI are lacking. METHODS A total of 208 (624 vessels) patients underwent technetium-99m tetrofosmin SPECT and [15O]H2O PET imaging before ICA in conjunction with FFR measurements. ICA was obtained without using a dedicated QFR acquisition protocol, and QFR computation was attempted in all vessels interrogated by FFR (552 vessels). RESULTS QFR computation succeeded in 286 (52%) vessels. QFR correlated well with invasive FFR overall (R = 0.79; p less then 0.001) and in the subset of vessels with an intermediate (30% to 90%) diameter stenosis (R = 0.76; p less then 0.001). Overall, per-vessel analysis demonstrated QFR to exhibit a superior sensitivity (70%) in comparison with SPECT (29%; p less then 0.001), whereas it was similar to PET (75%; p = 1.000). Specificity of QFR (93%) was higher than PET (79%; p less then 0.001) and not different from SPECT (96%; p = 1.000). As such, the accuracy of QFR (88%) was superior to both SPECT (82%; p = 0.010) and PET (78%; p = 0.004). Lastly, the area under the receiver operating characteristics curve of QFR, in the overall sample (0.94) and among vessels with an intermediate lesion (0.90) was higher than SPECT (0.63 and 0.61; p less then 0.001 for both) and PET (0.82; p less then 0.001 and 0.77; p = 0.002), respectively. CONCLUSIONS In this head-to-head comparative study, QFR exhibited a higher diagnostic value for detecting FFR-defined significant CAD compared with perfusion imaging by SPECT or PET. OBJECTIVES This study presents a head-to-head comparison of the value of cardiac magnetic resonance (CMR)-derived left-ventricular (LV) function and scar burden and positron emission tomography (PET)-derived perfusion and innervation in predicting ventricular arrhythmias (VAs). BACKGROUND Improved risk stratification of VA is important to identify patients who should benefit of prophylactic implantable cardioverter-defibrillator (ICD) implantation. Perfusion abnormalities, sympathetic denervation, and scar burden have all been linked to VA, although comparative studies are lacking. METHODS Seventy-four patients with ischemic cardiomyopathy and left-ventricular ejection fraction (LVEF) ≤35%, referred for primary prevention ICD placement were enrolled prospectively. Late gadolinium-enhanced (LGE) CMR was performed to assess LV function and scar characteristics. [15O]H2O and [11C]hydroxyephedrine positron emission tomography (PET) were performed to quantify resting and hyperemic myocardial blood flow (MBF), coronary flow reserve (CFR), and sympathetic innervation.
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