Abstract
Dysfunction or failure of the endothelial organ is a heterogenous and often ill-described feature of both cardiovascular and noncardiovascular disorders. Although seldom recognized as a separate clinical condition, endothelial cell dysfunction (ECD) is an established catalyst of disease. However, even in recent pathophysiological studies, ECD is frequently oversimplified as a binary state without gradation, based on the assessment of a single function (e.g., synthesis or activity of nitric oxide) and without considering spatiotemporal dimensions (local vs. generalized, acute vs. chronic). In this article, we suggest a simple scale to grade the severity of ECD and a definition of ECD in three dimensions: space, time, and severity. We also adopt a broader perspective on ECD by integrating and comparing gene expression data of endothelial cells from different organs and diseases and propose a concept that links common pathophysiological mechanisms. We hope that this will enhance the understanding of the pathophysiology of ECD and stimulate discussion in this field.
Published Version
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