11Feb 2023
Obstructive Sleep Apnea–induced Endothelial Dysfunction Is Mediated by miR-210

Obstructive Sleep Apnea–induced Endothelial Dysfunction Is Mediated by miR-210

Obstructive sleep apnea (OSA)–induced endothelial cell (EC) dysfunction contributes to OSA-related cardiovascular sequelae. The mechanistic basis of endothelial impairment by OSA is unclear. This study aimed to identify the mechanism of OSA-induced EC dysfunction and explore the potential therapies for OSA-accelerated cardiovascular disease. miR-210 concentration was positively correlated with the apnea–hypopnea index. ECs transfected with miR-210 or treated with OSA serum showed reduced V˙V˙o2 rate, mitochondrial membrane potential, and DNA abundance. Moreover, the SREBP2 inhibitor betulin alleviated intermittent hypoxia–increased systolic blood pressure in the OSA mouse model. These results identify an axis involving SREBP2, miR-210, and mitochondrial dysfunction, representing a new mechanistic link between OSA and EC dysfunction that may have important implications for treating and preventing OSA-related cardiovascular sequelae.

  • #critical care

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