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Artículos socios - Artículos
Obstructive Sleep Apnea Syndrome,Vascular Pathology, Endothelial Function and Endothelial Cells and Circulating Microparticles
12/05/2016
Stiefel P, Sánchez-Armengol MA, Villar J, Vallejo-Vaz A, Moreno-Luna R, Capote F.
Arch Med Res. 2013 Aug;44(6):409-14

Abstract

Accelerated atherosclerosis and increased cardiovascular risk are frequently reported in patients with obstructive sleep apnea (OSA) syndrome. In this article the authors attempt a review of the current understanding of the relationship between vascular risk and OSA syndrome based on large cohort studies that related the disease to several cardiovascular risk factors and vascular pathologies. We also discuss the pathophysiological mechanisms that may be involved in this relationship, starting with endothelial dysfunction and its mediators. These include an increased oxidative stress and inflammation as well as several disorders of coagulation and lipid metabolism. Moreover, circulating microparticles from activated leukocytes (CD62L_MPs) are higher in patients with OSA and there is a positive correlation between circulating levels of CD62L_MPs and nocturnal hypoxemia severity. Finally, circulating level of endothelial microparticles and circulating endothelial cells seem to be increased in patients with OSA. Also, endothelial progenitor cells are reduced and plasma levels of the vascular endothelial growth factor are increased.


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