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Review
, 20 (6), 547-51

The Clinical Significance of Endothelial Dysfunction

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Review

The Clinical Significance of Endothelial Dysfunction

Ulf Landmesser et al. Curr Opin Cardiol.

Abstract

Purpose of review: Endothelial dysfunction is thought to play a pivotal role in the development, progression, and clinical complications of atherosclerosis. Several recent studies have addressed the clinical implications of endothelial dysfunction for cardiovascular events, atherosclerosis, restenosis, and heart failure. Novel findings with respect to endothelial progenitor cells and their alteration by cardiovascular risk factors are characterized and potential therapeutic interventions to improve endothelial and endothelial progenitor cell function are discussed.

Recent findings: Over the past 5 years evidence has accumulated from clinical studies for a close association of the degree of endothelial dysfunction and clinical cardiovascular events in patients with cardiovascular risk factors, coronary disease, acute coronary syndrome, or heart failure. Understanding of the mechanisms leading to endothelial dysfunction has improved, including the notion that dysfunctional endothelial nitric oxide synthase, in part due to deficiency of the endothelial nitric oxide synthase cofactor tetrahydrobiopterin, likely plays an important role. Major progress has been made in understanding the role of endothelial progenitor cells, which likely contribute to both ischemia-induced neovascularization and endothelial regeneration after injury. Endothelial progenitor cell function is altered in patients with cardiovascular risk factors.

Summary: Recent research on endothelial and endothelial progenitor cell dysfunction supports their clinical significance and has led to important insights in the pathophysiology of cardiovascular disease and at the same time provides an important opportunity to develop novel therapeutic approaches. Endothelial function represents a valuable surrogate endpoint to assess the impact of therapeutic interventions.

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