Endothelial Dysfunction Aging

Endothelial dysfunction aging describes impaired function of endothelial cells lining the inner surface of blood vessels. The endothelium regulates vascular tone, blood flow, inflammation, immune signaling, and coagulation. With aging, endothelial cells show reduced nitric oxide bioavailability, increased oxidative stress, and heightened inflammatory activation. These changes impair vasodilation and promote vascular stiffness, thrombosis, and atherogenic processes. Endothelial dysfunction aging disrupts communication between blood vessels and surrounding tissues, contributing to reduced tissue perfusion and metabolic imbalance. It represents an early event in vascular aging and precedes many cardiovascular conditions. Endothelial health is influenced by metabolic status, inflammation, and mechanical stress. Progressive endothelial dysfunction accelerates biological aging and increases vulnerability to cardiovascular complications. Understanding endothelial dysfunction aging is critical for identifying early biomarkers of vascular decline and developing strategies to preserve vascular responsiveness and systemic resilience.