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Year : 2021  |  Volume : 2  |  Issue : 2  |  Page : 33-37

Renin-angiotensin system in the pathogenesis of COVID-19 and possible drug targets

Department of Medicine, All India Institute of Medical Sciences, New Delhi, India

Correspondence Address:
Dr. Arvind Kumar
Room 3094-A, 3rd Floor, Teaching Block, All India Institute of Medical Sciences, New Delhi - 110 029
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jopcs.jopcs_15_20

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Coronavirus disease 2019 (COVID-19) is characterized by fever, cough, shortness of breath, myalgia, and headache. The disease also takes a more severe form with life-threatening manifestations of acute respiratory distress syndrome, acute cardiac injury, acute kidney injury, disseminated intravascular coagulopathy, and cytokine storm. It has been elucidated that like its predecessor, the SARS CoV, the SARS CoV-2 utilizes the angiotensin-converting enzyme 2 receptor to enter cells. This knowledge brought into speculation the effects of a dysregulated renin-angiotensin system (RAS) in the pathogenesis of COVID-19. It has been proposed that the effects of a dysregulated RAS would lead to an inflammatory cascade and contribute to the cytokine storm that is central to the disease. This paper looks at the RAS pathway and hypothesizes the possibility of a positive RAS feedback loop in the pathogenesis of COVID-19.

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