endoteliaalse
Endothelial, in Estonian endoteliaalne, describes anything related to the endothelium, the thin monolayer of cells lining the interior surface of blood vessels and the heart. The endothelium consists of a single layer of squamous cells anchored by junctional complexes, with a glycocalyx on the luminal surface that interacts with blood components. Endothelial cells vary by organ and vessel type, giving rise to continuous, fenestrated, and discontinuous endothelium according to permeability needs.
Key functions include serving as a selective barrier, regulating vascular permeability, and producing vasoactive substances such
Endothelial dysfunction, often characterized by reduced nitric oxide availability, oxidative stress, and a pro-inflammatory state, is