Related Experiment Video
Updated: May 21, 2026

En Face Detection of Nitric Oxide and Superoxide in Endothelial Layer of Intact Arteries
Published on: February 25, 2016
Association between endothelial nitric oxide synthase polymorphisms and atrial fibrillation: a meta-analysis
Hongying Chen1, Hongxia Chu, Yu Shi
1Department of Cardiology, Yantai Yu Huang Ding Hospital, Yantai, Shandong Province, China.
Abstract:
Several recent studies have focused on the association between the promoter polymorphisms 786T/C of the endothelial nitric oxide synthase (eNOS) gene and susceptibility to atrial fibrillation (AF); however, results have been conflicting. We searched Medline, Embase, and the ISI Web of Science through July 1, 2011. Five studies with 1,130 AF cases and 2,340 controls were selected. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated based on fixed- and random-effects models. There was no overall association between eNOS 786T/C and AF risk. In subgroup analysis, stratified by ethnicity, we observed a positive association between the eNOS 786T/C polymorphism and AF risk among Caucasians but not among mixed populations. When stratifying by control source, the overall ORs for population- and hospital-based studies were 1.07 (95% CI, 0.50-2.30) and 0.79 (95% CI, 0.65-0.97) for CC vs. 22T carriers, respectively. In the studies with a sample size greater than 200, the eNOS 786T/C polymorphism decreased AF risk (OR [95% CI]: 0.79 [0.64-0.97] for CC vs. T carriers). This meta-analysis suggests that the 786T/C polymorphism of the eNOS gene is protective against AF risk among Caucasians. Additional large studies based on diverse populations are required to validate this conclusion.
More Related Videos
08:05Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice
Published on: June 29, 2022
08:10Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
Published on: July 20, 2022
Related Concept Videos
Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Single Nucleotide Polymorphisms-SNPs
Nitric Oxide Signaling Pathway