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  • Buhl Kaae posted an update 1 year, 6 months ago

    Background Pharmacological inhibition of angiogenesis via the vascular endothelial growth factor pathway is an important therapeutic target that prevents tumor growth and the formation of metastases. Although vascular endothelial growth factor inhibitor (VPI) is well understood as a well-defined safety profile, few real-world studies are comparing the incidence, clinical features, and prognosis of the aneurysm and artery dissection. Methods and Results To evaluate and compare the links between different VPIs and aneurysm and artery dissection, we identified 634 reports with VPIs in the US Food and Drug Administration Adverse Event Reporting System database ranging between January 2004 to March 2020. We used the reporting odds ratio for the association between the use of VPIs and aneurysm and artery dissection. The reporting odds ratio (3.68, 95%, 2.18‒6.23) shows that ramucirumab has a stronger correlation than other VPIs. The results show a significant difference in onset time (P less then 0.001). The median time to aneurysm and artery dissection was 79.5 (interquartile interval, 19.0-273.5) days after VPI administration. The results also show that VPI-associated aneurysm and artery dissection was reported more often in men (n=336, 59.68% versus n=227, 40.32%), and there were more cases in patients aged between 45 to 74 years than those less then 45 years (n=312, 68.12% versus n=18, 3.93%); patients aged ≥75 years accounted for 27.95% (n=128). Finally, the suspected drugs generally led to 19.98% deaths and 29.81% hospitalizations. Conclusions We identified signals for aneurysm and artery dissection following various VPIs in real-world practice via the Food and Drug Administration Adverse Event Reporting System, which represents the first step for continued pharmacovigilance investigation.Background The promise of precision population health includes the ability to use robust patient data to tailor prevention and care to specific groups. Advanced analytics may allow for automated detection of clinically informative subgroups that account for clinical, genetic, and environmental variability. This study sought to evaluate whether unsupervised machine learning approaches could interpret heterogeneous and missing clinical data to discover clinically important coronary artery disease subgroups. Methods and Results The Genetic Determinants of Peripheral Arterial Disease study is a prospective cohort that includes individuals with newly diagnosed and/or symptomatic coronary artery disease. We applied generalized low rank modeling and K-means cluster analysis using 155 phenotypic and genetic variables from 1329 participants. Cox proportional hazard models were used to examine associations between clusters and major adverse cardiovascular and cerebrovascular events and all-cause mortality. We then comphms offer the ability to meaningfully process heterogeneous patient data and provide sharper insights into disease characterization and risk assessment. Registration URL https//www.clinicaltrials.gov; Unique identifier NCT00380185.Background Sepsis is known to increase morbidity and duration of hospital stay and is a common cause of mortality worldwide. Renin-angiotensin-aldosterone system inhibitors (RAASis) are commonly used to treat hypertension but are usually discontinued during hospitalization for sepsis because of concerns about renal hypoperfusion. The aim of our study was to investigate whether RAASis should be continued after discharge in sepsis survivors and to identify the effects on the clinical outcomes. Methods and Results A total of 9188 sepsis survivors aged 20 years and older who were discharged from January 1, 2012 to December 31, 2019 were included in our analyses. We further divided sepsis survivors into RAASi users and nonusers. These groups were matched by propensity scores before the outcomes of interest, including all-cause mortality and major adverse cardiac events (MACE), were examined. After propensity score matching, 3106 RAASi users and 3106 RAASi nonusers were included in our analyses. Compared with RAASi nonusers, RAASi users had lower risks of all-cause mortality (hazard ratio [HR], 0.68; 95% CI, 0.62-0.75), MACEs (HR, 0.87; 95% CI, 0.81-0.94), ischemic stroke (HR, 0.85; 95% CI, 0.76-0.96), myocardial infarction (HR, 0.74; 95% CI, 0.61-0.90), and hospitalization for heart failure (HR, 0.84; 95% CI, 0.77-0.92). Subgroup analyses stratified by admission to the ICU and the use of inotropes showed similar results. Conclusions In our study, we found that RAASi users had reduced risks of all-cause mortality and MACEs. These findings suggested a beneficial effect of RAASi use by sepsis survivors after discharge.The association between large pericardial effusion and restrictive cardiomyopathy (RCM) is uncommon and has seldom been described. We describe an uncommon case of a 31-year-old male with RCM who presented with large, recurrent pericardial effusion, heart failure, and echocardiographic findings showing progressive worsening of diastolic function even after total pericardiectomy who was eventually transferred for cardiac transplant evaluation.Background Lifetime risk is an informative estimate for driving lifestyle and behavioral changes especially for young adults. The impact of composite risk factors for cardiovascular disease on lifetime risk stratified by sex has not been investigated in the Japanese population, which has a much lower mortality of coronary heart disease compared with the Western population. We aimed to estimate lifetime risk of death from cardiovascular disease attributable to traditional risk factors. Methods and Results We analyzed pooled individual data from the Evidence for Cardiovascular Prevention from Observational Cohorts in a Japanese cohort study. A modified Kaplan-Meier approach was used to estimate the remaining lifetime risk of cardiovascular death. In total, 41 002 Japanese men and women with 537 126 person-years of follow-up were included. The lifetime risk at the index-age of 45 years for those with optimal risk factors (total cholesterol less then 4.65 mmol/L, systolic blood pressure less then 120 mm Hg, diastolic blood pressure less then 80 mm Hg, absence of diabetes, and absence of smoking habit) was lower compared with the highest risk profile of ≥2 risk factors (6.8% [95% CI, 0%-11.9%] versus 19.4% [16.7%-21.4%] for men and 6.9% [1.2%-11.5%] versus 15.4% [12.6%-18.1%] for women). Conclusions The magnitude and the number of risk factors were progressively associated with increased lifetime risk even in individuals in early adulthood who tend to have low short-term risk. The degree of established cardiovascular risk factors can be converted into lifetime risk. Our findings may be useful for risk communication in the early detection of future cardiovascular disease risk.Aim To compare the efficacy of single- and double-species mite allergen immunotherapy. Materials and methods An open, pseudo-randomized, controlled study was conducted (n = 125 allergic rhinitis patients). The primary end point involved the visual analogue scale. Secondary end points included a basophil activation test and serum specific IgE and IgG4 assays. Results Visual analogue scale analysis indicated considerable reductions in both groups. Both treatments improved quality of life and induced sIgG4 antibody production. Basophil activation and serum IgE inhibition were not evident in either treatment. Neither treatment displayed an early stage immune synergistic effect on cross-allergens. Conclusions Both treatments were effective against allergic rhinitis, and statistical differences were not observed. Future studies may require long-term, large-scale research.Background The ratio of acceleration time/ejection time (AT/ET) is a simple and reproducible echocardiographic parameter that integrates aortic stenosis severity and its consequences on the left ventricle. No study has specifically assessed the prognostic impact of AT/ET on outcome in patients with high-gradient severe aortic stenosis (SAS) and no or mild symptoms. We sought to evaluate the relationship between AT/ET and mortality and determine the best predictive AT/ET cutoff value in these patients. Methods and Results A total of 353 patients (median age, 79 years; 46% women) with high-gradient (mean pressure gradient ≥40 mm Hg and/or aortic peak jet velocity ≥4 m/s) SAS, left ventricular ejection fraction ≥50%, and no or mild symptoms were studied. The impact of AT/ET ≤0.35 or >0.35 on all-cause mortality was retrospectively studied. During a median follow-up of 39 (25th-75th percentile, 23-62) months, 70 patients died. AT/ET >0.35 was associated with a considerable increased mortality risk after adjustment for established prognostic factors in SAS under medical and/or surgical management (adjusted hazard ratio [HR], 2.54; 95% CI, 1.47-4.37; P0.35 is a strong predictor of outcome in patients with SAS and no or only mild symptoms and identifies a subgroup of patients at higher risk of death who may derive benefit from earlier aortic valve replacement.Spectrin is a cytoskeletal protein ubiquitous in metazoan cells that acts as a liaison between the plasma membrane and the cellular interior and imparts mechanical stability to the plasma membrane. Spectrin is known to be highly dynamic, with an appreciable degree of torsional and segmental mobility. In this context, we have earlier utilized the red edge excitation shift (REES) approach to report the retention of restricted solvation dynamics and local structure in the vicinity of spectrin tryptophans on urea denaturation and loss of spectrin secondary structure. As a natural progression of our earlier work, in this work, we carried out a biophysical dissection of tryptophan solvation and rotational dynamics in spectrin and its constituent domains, in order to trace the origin of local structure retention observed in denatured spectrin. Our results show that the ankyrin binding domain (and, to a lesser extent, the β-tetramerization domain) is capable of retention of local structure, similar to that observed for intact spectrin. However, all α-chain domains studied exhibit negligible retention of local structure on urea denaturation. Such a stark chain-specific retention of local structure could originate from the fact that the β-chain domains possess specialized functions, where conservation of local (structural) integrity may be a prerequisite for optimum cellular function. To the best of our knowledge, these observations represent one of the first systematic biophysical dissections of spectrin dynamics in terms of its constituent domains and add to emerging literature on comprehensive domain-based analysis of spectrin organization, dynamics, and function.4,6-α-Glucanotransferases (4,6-α-GTs) convert amylose V into two types of differently structured products a linear product connected by continuous α,1 → 6 bonds, such as isomalto/malto-polysaccharide (IMMP), and a highly branched product connected by alternating α,1 → 4 and α,1 → 6 bonds, such as reuteran-like polysaccharide (RLP). The synthesis process of 4,6-α-GT products is unclear, and exploring this process is significant for producing dietary fibers with potential applications. This study identified and expressed Geobacillus sp. 12AMOR1 GtfD-ΔC and Bacillus sporothermodurans GtfC-ΔC. After characterizing their products through 1H NMR and enzymatic fingerprinting, we found that GtfD-ΔC synthesized RLP with 29% α,1 → 6 bonds, and GtfC-ΔC synthesized IMMP with 71% α,1 → 6 bonds. check details The maltoheptaose incubation experiment showed different chain-length transfer patterns of two 4,6-α-GTs, GtfC-ΔC and GtfD-ΔC, transferring single and multiple glucose residues in each transglycosylation reaction, respectively. Site-directed mutagenesis confirmed that positions S345 and I347 influence the product structure of GtfC-ΔC, and the S345T/I347V mutation changed the GtfC-ΔC product to a linear product connected by alternating α,1 → 4 and α,1 → 6 bonds (pullulan-like polysaccharide) and altered the chain-length transfer pattern of GtfC-ΔC.