gp91phox-Containing NADPH Oxidase Mediates Endothelial Dysfunction in Renovascular Hypertension

Abstract
Background— Isoforms of the NADPH oxidase contribute to vascular superoxide anion ( · O2) formation and limit NO bioavailability. We hypothesized that the endothelial gp91phox-containing NADPH oxidase is predominant in generating the O2 to scavenge endothelial NO and thus is responsible for the development of endothelial dysfunction.