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CoLiDe presents a composition-centric approach to protein design towards different functional phenomena.
CoLiDe is implemented in Python and freely available at https//github.com/voracva1/CoLiDe.
Supplementary data are available at Bioinformatics online.
Supplementary data are available at Bioinformatics online.
β-blockers are widely used in therapy for heart failure and hypertension. β-blockers are also known to evoke additional diversified pharmacological and physiological effects in patients. We aim to characterize the underlying molecular signaling and effects on cardiac inotropy induced by β-blockers in animal hearts.
Wild type mice fed high fat diet (HFD) were treated with carvedilol, metoprolol, or vehicle and echocardiogram analysis was performed. Heart tissues were used for biochemical and histological analyses. Cardiomyocytes were isolated from normal and HFD mice and rats for analysis of adrenergic signaling, calcium handling, contraction, and western blot. ABBV2222 Biosensors were used to measure β-blocker-induced cyclic guanosine monophosphate (cGMP) signal and protein kinase A (PKA) activity in myocytes. Acute stimulation of myocytes with carvedilol promotes β1AR- and PKG-dependent inotropic cardiac contractility with minimal increases in calcium amplitude. Carvedilol acts as a biased ligand to promote β1AR n be a promising therapeutic target for treating cardiac diseases with depressed cardiac ejection fraction.
Analysis of conservation of gene neighbourhoods over different evolutionary levels is important for understanding operon and gene cluster evolution, and predicting functional associations. Our tool FlaGs (Flanking Genes) takes a list of NCBI protein accessions as input, clusters neighbourhood-encoded proteins into homologous groups using sensitive sequence searching, and outputs a graphical visualization of the gene neighbourhood and its conservation, along with a phylogenetic tree annotated with flanking gene conservation. FlaGs has demonstrated utility for molecular evolutionary analysis, having uncovered a new toxin-antitoxin system in prokaryotes and bacteriophages. The web version of FlaGs (webFlaGs) can optionally include a BLASTP search against a reduced RefSeq database to generate an input accession list and analyse neighbourhood conservation within the same run.
FlaGs can be downloaded from https//github.com/GCA-VH-lab/FlaGs or run online at http//www.webflags.se/.
Supplementary data are available at Bioinformatics online.
Supplementary data are available at Bioinformatics online.
To investigate the efficacy and safety of ticagrelor monotherapy in patients undergoing percutaneous coronary intervention (PCI) stratified according to the baseline white blood cell (WBC) count.
This is a post-hoc analysis of the GLOBAL LEADERS trial, a multicentre, open-label, randomized all-comer trial in patients undergoing PCI, comparing the experimental strategy (23-month ticagrelor monotherapy following 1-month dual anti-platelet therapy [DAPT]) with the reference strategy (12-month aspirin monotherapy following 12-month DAPT). Patients were stratified into two WBC groups, either < or ≥median WBC count of 7.8 x 109 cells/L (lower or higher WBC group, respectively). The primary endpoint was a composite of all-cause mortality or new Q-wave myocardial infarction (MI) at 2 years.Out of 14,576 patients included in the present study, 7,212 patients (49.5%) were classified as the lower WBC group, who had a significantly lower risk of both ischemic and bleeding outcomes at 2 years. At 2 years, the experimental strategy was associated with a significant lower incidence of the primary endpoint compared with the reference strategy in the lower WBC group (2.8% vs. 4.2%; hazard ratio [HR] 0.67; 95% CI 0.52-0.86) but not in the higher WBC group (4.8% vs. 4.7%; HR 1.01; 95% CI 0.82-1.25; pinteraction=0.013). There were no significant differences in the risks of BARC type 3 or 5 bleeding between two antiplatelet strategies regardless of the WBC groups.
Increased WBC counts, which may reflect degree of inflammation, at the time of index procedure may attenuate the anti-ischemic benefits of ticagrelor monotherapy observed in patients with lower WBC counts.
Increased WBC counts, which may reflect degree of inflammation, at the time of index procedure may attenuate the anti-ischemic benefits of ticagrelor monotherapy observed in patients with lower WBC counts.Many enzymes that catalyze protein post-translational modifications can specifically modify multiple target proteins. However, little is known regarding the molecular basis and evolution of multispecificity in these enzymes. Here, we used a combined bioinformatics and experimental approaches to investigate the evolution of multispecificity in the sirtuin-1 (SIRT1) deacetylase. Guided by bioinformatics analysis of SIRT1 orthologs and substrates, we identified and examined important amino acid substitutions that have occurred during the evolution of sirtuins in Metazoa and Fungi. We found that mutation of human SIRT1 at these positions, based on sirtuin orthologs from Fungi, could alter its substrate specificity. These substitutions lead to reduced activity toward K382 acetylated p53 protein, which is only present in Metazoa, without affecting the high activity toward the conserved histone substrates. Results from ancestral sequence reconstruction are consistent with a model in which ancestral sirtuin proteins exhibited multispecificity, suggesting that the multispecificity of some metazoan sirtuins, such as hSIRT1, could be a relatively ancient trait.Acetamide, a food contaminant, has been shown to induce hepatocellular tumors in rats. However, the mode of action underlying acetamide-induced hepatocarcinogenesis remains unclear. In the current study, we aimed to examine the possible involvement of in vivo mutagenicity in hepatocarcinogenesis of acetamide and evaluate its toxicological profile using a comprehensive medium-term toxicity study in gpt delta rats. Six-week-old male F344 gpt delta rats were given a basal diet containing 0%, 0.625%, 1.25%, or 2.5% acetamide for 13 weeks. In general toxicologic assessment, hepatotoxic parameters in serum, such as aspartate aminotransferase and alanine aminotransferase were significantly changed at the 1.25% group and higher. Histopathological examination of the liver revealed that various changes related to hepatic injury were observed at the 1.25% group and higher. Interestingly, Feulgen-positive cytoplasmic inclusion was frequently observed in hepatocytes in these groups. In the hematopoietic system, red blood cell parameters in plasma, such as mean corpuscular volume and mean corpuscular hemoglobin were significantly changed at the 1.25% group and higher, and decrease of erythroblast in the spleen was observed histopathologically in the 2.5% group. Thus, the no-observed-adverse-effect level of acetamide in this study was 0.625% (equivalent to 394 mg/kg body weight/day). In vivo mutation assays showed that acetamide induced no changes in gpt and red/gam gene mutant frequencies, even at the carcinogenic target site. In contrast, Ki67-positive hepatocytes were increased significantly at carcinogenic doses. Therefore, these results suggested that cell proliferation activity, but not mutagenicity, played crucial roles in acetamide-induced hepatocarcinogenesis in rats.
Current treatment guidelines recommend implantable cardioverter-defibrillators (ICDs) in eligible patients with an estimated survival beyond one year. There is still an unmet need to identify patients who are unlikely to benefit from an ICD.We determined cause-specific one-year mortality after ICD implantation and identified associated risk factors.
Using Danish nationwide registries (2000-2017), we identified 14,516 patients undergoing first-time ICD implantation for primary or secondary prevention. Risk factors associated with one-year mortality were evaluated using multivariable logistic regression. The median age was 66 years, 81.3% were male, and 50.3% received an ICD for secondary prevention. The one-year mortality rate was 4.8% (694/14,516). ICD recipients who died within one year were older and more comorbid compared to those who survived (72 vs. 66 years, p < 0.001). Risk factors associated with increased one-year mortality included dialysis (OR3.26, CI2.37-4.49), chronic renal disease (OR2.14, CI1.66-2.76), cancer (OR1.51, CI1.15-1.99), age 70-79 years (OR1.65, CI1.36-2.01), and age ≥80 years (OR2.84, CI2.15-3.77). link2 The one-year mortality rates for the specific risk factors were dialysis (13.8%), chronic renal disease (13.1%), cancer (8.5%), age 70-79 years (6.9%), and age ≥80 years (11.0%). Overall, the most common causes of mortality were related to cardiovascular diseases (62.5%), cancer (10.1%), and endocrine disorders (5.0%). However, the most common cause of death among patients with cancer was cancer-related (45.7%).
Among ICD recipients, mortality rates were low and could be indicative of relevant patient selection. Important risk factors of increased one-year mortality included dialysis, chronic renal disease, cancer, and advanced age.
Among ICD recipients, mortality rates were low and could be indicative of relevant patient selection. Important risk factors of increased one-year mortality included dialysis, chronic renal disease, cancer, and advanced age.A new-generation mini-implant system offers a polyether ether ketone matrix and a new-generation surface technology on its patrix. This clinical report describes the treatment of a patient with a new-generation mini-implant-retained maxillary overdenture.A 54-year-old woman presented with severe maxillary resorption, which resulted in an unstable maxillary removable denture. Due to poor anatomical conditions, the prosthodontic solution posed for the patient was an implant-supported maxillary overdenture based on four implants. This report presents the detailed workflow for CAD/CAM-fabricated, individually milled zirconia bars and an electroplated superstructure framework for an implant-supported removable overdenture, which enabled good retention and an optimal esthetic result. A critical element in the present case was the production of electroplated secondary elements, which are highly precise, with a homogenous layer of gold. No retention loss was observed after 12 months in use.This case history report describes a comprehensive digital workflow for implant treatment and occlusal reconstruction to provide a systematic protocol for implant-supported restorations in edentulous patients. In this case, a restoration-oriented surgical protocol was created using an oral implant planning and design software. The implant surgery was completed under the guidance of a fully guided surgical template. This is the first report of the combined application of computer-aided diagnosis axiograph and neuromuscular evaluation systems in implant-supported occlusal reconstruction. link3 Digital technologies can increase the accuracy, efficiency, and comfort of implant treatment and achieve satisfactory occlusal reconstruction outcomes in edentulous patients.
To systematically review the literature comparing marginal bone loss (MBL) and pink esthetic scores of implants with convergent or concave transmucosal profiles vs divergent or parallel profiles.
A PICO question was defined, and an electronic search was carried out in the MEDLINE/PubMed and Cochrane Oral Health Group databases. Studies documenting type of transmucosal profile (either tissue-level profiles or abutments) and soft and/or hard tissue outcomes of implants were considered eligible. Studies were selected on the basis of the inclusion criteria and quality assessments. A meta-analysis with subgroup analyses was performed.
Five papers fulfilled the inclusion criteria, and four were eligible for meta-analysis. Significantly less MBL was found in concave/convergent groups, with a mean difference of 0.772 (95% confidence interval [CI] 0.450 to 1.095; P < .001). In the subgroup analyses for platform-switching and platform-matching connections, a significant effect in favor of concave/convergent was detected, with a standardized difference in means of 1.
Homepage: https://www.selleckchem.com/products/abbv-2222.html
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