COVID-19 Is an Endothelial Disease: Implications of Nitric Oxide

Link to article at PubMed

Adv Exp Med Biol. 2021;1321:109-113. doi: 10.1007/978-3-030-59261-5_9.


Endothelial cells are a clinically important infection site for COVID-19, both as a mechanism for disease pathogenesis and as a therapeutic target. People with dysfunctional endothelium, defined by nitric oxide deficiency, appear to have a more severe disease course. As such, nitric oxide has therapeutic potential to mitigate COVID-19 severity. Inhaled nitric oxide appears to improve outcomes, although this strategy neglects systemic endothelium. Meanwhile, early studies have documented that endothelial protective medications, such as the administration of statins and ACE-inhibitors, are associated with less severe disease and reduced mortality. Importantly, these medications augment endothelial sources of nitric oxide, which may explain this effect.

PMID:33656717 | DOI:10.1007/978-3-030-59261-5_9

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