OBJECTIVEHeart rate–corrected QT (QTc) interval is associated with mortality in the general population, but this association is less clear in individuals with type 2 diabetes. We assessed the association of QTc interval with all-cause and cardiovascular disease (CVD) mortality in the Diabetes Heart Study.RESEARCH DESIGN AND METHODSWe studied 1,020 participants with type 2 diabetes (83% European Americans; 55% women; mean age 61.4 years) who were free of atrial fibrillation, major ventricular conduction defects, and antiarrhythmic therapy at baseline. QT duration was automatically calculated from a standard 12-lead electrocardiogram (ECG). Following American Heart Association/American College of Cardiology Foundation recommendations, a linear scale was used to correct the QT for heart rate. Using Cox regression, risk was estimated per 1-SD increase in QTc interval as well as prolonged QTc interval (>450 ms) vs. normal QTc interval for mortality.RESULTSAt baseline, the mean (SD) QTc duration was 414.9 ms (18.1), and 3.0% of participants had prolonged QTc. After a median follow-up time of 8.5 years (maximum follow-up time 13.9 years), 204 participants were deceased. In adjusted multivariate models, a 1-SD increase in QTc interval was associated with an 18% higher risk for all-cause mortality (hazard ratio 1.18 [95% CI 1.03–1.36]) and 29% increased risk for CVD mortality (1.29 [1.05–1.59]). Similar results were obtained when QTc interval was used as a categorical variable (prolonged vs. normal) (all-cause mortality 1.73 [0.95–3.15]; CVD mortality 2.86 [1.35–6.08]).CONCLUSIONSHeart rate QTc interval is an independent predictor of all-cause and CVD mortality in this population with type 2 diabetes, suggesting that additional prognostic information may be available from this simple ECG measure.
Authors' Contribution All authors contributed to the study design. YZ, SR and MX collected samples and analyzed the data. YZ prepared the first draft of the manuscript. YZ, NLand XZ performed the experiments. CH and XN revised the article.
This work aimed to study the effects of gamma (g) irradiation on the total phenols and total flavonoid contents of celery leaves and to investigate effect of g-irradiated celery leaves powder (g-Irr.CLP) against hypercholesterolemia in rats. Results obtained that g-irradiation increased the amount of total phenolic and total flavonoid contents of dried celery. The results of biological study showed marked increases in the concentrations of serum lipid contents, activities of liver and cardiac marker enzymes and level of TBARS with a significant decrease in serum high-density lipoprotein concentration and reduction in the activities of anti-oxidant enzymes and glutathione contents of serum and heart tissues of hypercholesterolemic rats compared to control rats. Treatment of hypercholesterolemic rats with raw CLP or g-Irr.CLP showed significantly less severe damage and remarkable improvement in all of the measured parameters when compared to hypercholesterolemic rats lowered the concentrations of serum lipid contents, liver and cardiac marker enzymes and TBARS level and ameliorate anti-oxidant enzymatic status in serum and cardiac tissue. These results suggest that, treatment with g-Irr.CLP has a powerful modulating effect on hypercholesterolemia induced oxidative stress and has the potential in reducing cardiovascular complications.
The fatty acid profile and the fatty acid composition of microbial lipids obtained from molds revealed that oil from Aspergillus sydowii, Fusarium oxysporum and F. equisetti had a high percentage of unsaturated fatty acids, particularly oleic acid, and had a similarity to the edible oils, groundnut and palm oil. This study sheds light on the possibilities of exploring the use of these oils as supplement to other edible fats and for other non-edible industrial purposes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.