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Renin-angiotensin system in the pathogenesis of COVID-19 and possible drug targets
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  • Sujay Halkur Shankar,
  • Vishal Vishwakarma,
  • Arvind Kumar,
  • Rohini Sharma,
  • Naveet Wig
Sujay Halkur Shankar
All India Institute of Medical Sciences

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Vishal Vishwakarma
All India Institute of Medical Sciences
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Arvind Kumar
All India Institute of Medical Sciences
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Rohini Sharma
All India Institute of Medical Sciences
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Naveet Wig
All India Institute of Medical Sciences
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Abstract

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 (ARDS), 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 ACE2 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 the hypothesizes the possibility of a positive RAS feedback loop in the pathogenesis of COVID-19. We also propose possible drug targets for the treatment of COVID-19.