endothelial dysfunction
Impaired function of the blood vessel lining that contributes to cardiovascular disease in diabetes.
Full Definition
Endothelial dysfunction refers to the pathological state where the endothelium (inner lining of blood vessels) loses its normal protective functions, including regulation of vascular tone, thrombosis, inflammation, and vascular permeability. In cardiometabolic disease, chronic hyperglycemia, insulin resistance, and dyslipidemia damage the endothelium through oxidative stress and inflammation, leading to reduced nitric oxide availability, increased vasoconstriction, enhanced platelet aggregation, and accelerated atherosclerosis. This dysfunction is considered an early and central event in diabetic vascular complications.
Usage
Usage note: Often measured by flow-mediated dilation or other vascular function tests.
In Context
- "Endothelial dysfunction preceded clinical cardiovascular events in the diabetic cohort." — vascular biology manuscript
- "Therapeutic interventions targeting endothelial dysfunction showed promise in early-stage trials." — pharmaceutical development report