vix.ing · top · new · best · stats

Roles of Vascular Oxidative Stress and Nitric Oxide in the Pathogenesis of Atherosclerosis

2017/02/16 by Ulrich Förstermann, Ning Xia, Huige Li · 1,474 citations
Chemistry · Immunology and Microbiology · Medicine · #Biochemistry #Biology #Cardiovascular, Neuropeptides, and Oxidative Stress Research #Chemistry #Diabetes mellitus #Endocrinology #Endothelial dysfunction #Endothelium #Enzyme #Internal medicine #Medicine #NADPH oxidase #Neutrophil, Myeloperoxidase and Oxidative Mechanisms #Nicotinamide adenine dinucleotide phosphate #Nitric Oxide and Endothelin Effects #Nitric oxide #Oxidase test #Oxidative stress #Reactive nitrogen species #Reactive oxygen species #Xanthine oxidase

paper · doi:10.1161/circresaha.116.309326

published in Circulation Research 120(4), 713-735 (Lippincott Williams & Wilkins)

openalex publication_date 2017/02/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

Major reactive oxygen species (ROS)-producing systems in vascular wall include NADPH (reduced form of nicotinamide adenine dinucleotide phosphate) oxidase, xanthine oxidase, the mitochondrial electron transport chain, and uncoupled endothelial nitric oxide (NO) synthase. ROS at moderate concentrations have important signaling roles under physiological conditions. Excessive or sustained ROS production, however, when exceeding the available antioxidant defense systems, leads to oxidative stress. Animal studies have provided compelling evidence demonstrating the roles of vascular oxidative stress and NO in atherosclerosis. All established cardiovascular risk factors such as hypercholesterolemia, hypertension, diabetes mellitus, and smoking enhance ROS generation and decrease endothelial NO production. Key molecular events in atherogenesis such as oxidative modification of lipoproteins and phospholipids, endothelial cell activation, and macrophage infiltration/activation are facilitated by vascular oxidative stress and inhibited by endothelial NO. Atherosclerosis develops preferentially in vascular regions with disturbed blood flow (arches, branches, and bifurcations). The fact that these sites are associated with enhanced oxidative stress and reduced endothelial NO production is a further indication for the roles of ROS and NO in atherosclerosis. Therefore, prevention of vascular oxidative stress and improvement of endothelial NO production represent reasonable therapeutic strategies in addition to the treatment of established risk factors (hypercholesterolemia, hypertension, and diabetes mellitus).

Citations

Cited by

Related