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Our study confirms the role of SKs in maintaining energy homeostasis in beetles.
Tachycardia-induced cardiomyopathy (TCM) has been known for decades as areversible form of non-ischemic cardiomyopathy. However, its mechanism and characteristics remain poorly understood.
This retrospective study investigated endomyocardial biopsy (EMB) samples from consecutive patients with TCM and compared them with samples from patients with dilated cardiomyopathy (DCM) and inflammatory cardiomyopathy (InCM).
A total of 684 patients (18TCM, 170 DCM, 496 InCM) with recent-onset heart failure and reduced ejection fraction unrelated to valvular or ischemic heart disease were analyzed.
In the TCM group, 81% were male, the mean age was 60 ± 13years, and 94% had heart failure symptoms ≥2New York Heart Association (NYHA) class. At baseline (BL), 78% had atrial fibrillation/flutter and 12% other forms of tachycardia or frequent extrasystole. The ventricular rate was higher compared to DCM and InCM patients (122 ± 25versus 78 ± 21; p < 0.001). Mean ejection fraction at BL was lower compared to DCM and InCM (27 ± 12% versus 39.0 ± 14.6%; p = 0.001), but improved to asignificantly greater extent during follow-up (FU) (20% versus 6%; p < 0.001). At FU, heart rate and presence of sinus rhythm were similar in all groups; 69% of TCM patients underwent cardioversion or ablation. Compared with DCM patients, TCM patients had stronger myocardial expression of major histocompatibility complex (MHC) classII and an equal amount of infiltration with T‑cells/macrophages. Compared with InCM patients, the presence of T‑cells/macrophages was significantly lower in TCM. The marker of apoptosis (caspase3) was comparably elevated in TCM/InCM patients.
Tachycardia-induced cardiomyopathy is characterized by immunohistological changes comparable to DCM except for caspase 3levels, which were similar to those in InCM.
Tachycardia-induced cardiomyopathy is characterized by immunohistological changes comparable to DCM except for caspase 3 levels, which were similar to those in InCM.
Noninvasive markers for predicting endoscopic remission (ER) in patients with ulcerative colitis (UC) who are in clinical remission (CR) are important for the determination of appropriate treatment modality. C-reactive protein (CRP) is a surrogate marker for assessing disease activity, albeit with a low sensitivity and specificity when the cut-off value is 0.3 or 0.5 mg/dL, which is usually considered normal. The CRP test has been improved, and even fine values within the normal range can be measured. The aim of this study was to determine the appropriate cut-off value of CRP below 0.3 mg/dL for the prediction of ER in UC patients with CR.
A total of 132 patients who underwent endoscopic evaluation during CR were retrospectively reviewed. Clinical and endoscopic activity was measured using a simple clinical colitis activity index (SCCAI) and Mayo endoscopic subscore (MES). ER was defined as MES 0 or 1.
In UC patients in CR, the CRP level was significantly lower in ER (0.05, 0.03-2.57) vs. non-ER (0.14, 0.03-2.81) (p < 0.001). The CRP value predicted ER [area under the curve (AUC = 0.710)] with a sensitivity of 71.4% and a specificity of 71.7% at a cut-off value of 0.09 mg/dL. In contrast, the value of normal CRP (< 0.3 mg/dL) did not show sufficient predictive value (sensitivity, 27.3%; and specificity, 90.9%).
In UC patients in CR, it may be helpful to lower the CRP cut-off value that predict ER other than 0.3 mg/dL, which is usually considered normal.
In UC patients in CR, it may be helpful to lower the CRP cut-off value that predict ER other than 0.3 mg/dL, which is usually considered normal.Organophosphate compounds (OPs) induce both acute and delayed neurotoxic effects, the latter of which is believed to involve their interaction with proteins other than acetylcholinesterase. However, few OP-binding proteins have been identified that may have a direct role in OP-induced delayed neurotoxicity. Given their ability to disrupt Ca2+ homeostasis, a key aim of the current work was to investigate the effects of sub-lethal neurite outgrowth inhibitory levels of OPs on the Ca2+-dependent enzyme tissue transglutaminase (TG2). At 1-10 µM, the OPs phenyl saligenin phosphate (PSP) and chlorpyrifos oxon (CPO) had no effect cell viability but induced concentration-dependent decreases in neurite outgrowth in differentiating N2a neuroblastoma cells. The activity of TG2 increased in cell lysates of differentiating cells exposed for 24 h to PSP and chlorpyrifos oxon CPO (10 µM), as determined by biotin-cadaverine incorporation assays. Exposure to both OPs (3 and/or 10 µM) also enhanced in situ incorporation of the membrane permeable substrate biotin-X-cadaverine, as indicated by Western blot analysis of treated cell lysates probed with ExtrAvidin peroxidase and fluorescence microscopy of cell monolayers incubated with FITC-streptavidin. Both OPs (10 µM) stimulated the activity of human and mouse recombinant TG2 and covalent labelling of TG2 with dansylamine-labelled PSP was demonstrated by fluorescence imaging following SDS-PAGE. A number of TG2 substrates were tentatively identified by mass spectrometry, including cytoskeletal proteins, chaperones and proteins involved protein synthesis and gene regulation. We propose that the elevated TG2 activity observed is due to the formation of a novel covalent adduct between TG2 and OPs.Sucralose is one of the most popular artificial sweeteners worldwide. Due to its high stability, persistence and low removal efficiency in wastewater treatment plants, sucralose has been used as an indicator of wastewater intrusion into aquatic systems. However, its stability has also been a reason for discussion whether sucralose's presence in surface water could indicate a recent anthropogenic input. Caffeine and acetaminophen have been considered as tracers in human impacted aquatic ecosystems and potentially good indicators of recent anthropogenic inputs into the environment due to their short half-lives in water. Here, a novel, high throughput and sensitive method based on online SPE-LC-HRMS for the determination of caffeine, sucralose and acetaminophen was developed and validated for both fresh and seawater samples and applied to environmental water samples to evaluate the efficiency of these compounds as tracers of aquatic pollution. KU0063794 Caffeine and sucralose were detected in > 70% of samples, while acetaminophen was only detected in 3% of samples above the MDL, demonstrating its limited environmental applicability.