Journal of Clinical and Translational Hepatology

Journal of Clinical and Translational Hepatology

Friday, 05 / 14 / 2021

Articles

Abstract

REVIEW ARTICLE

Cytokine Storm of COVID-19 and Its Impact on Patients with and without Chronic Liver Disease

Madhumita Premkumar1 and Chandan Kumar Kedarisetty2,*

1  Departments of Hepatology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
2  Department of Hepatology and Liver transplantation, Gleneagles Global Hospital, Hyderabad, India
*Correspondence to: Chandan Kumar Kedarisetty, Department of Hepatology and Liver Transplantation, Gleneagles Global Hospital, Lakdikapul, Hyderabad 500004, India. ORCID: https://orcid.org/0000-0002-7239-0293 . Tel: +91-040-4592-8500, E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Journal of Clinical and Translational Hepatology 2021;9(2):256-264 DOI: 10.14218/JCTH.2021.00055
Received: February 4, 2021 Accepted: April 1, 2021 Published online: April 19, 2021

Abstract

The coronavirus pandemic has resulted in increased rates of hepatic decompensation, morbidity and mortality in patients suffering from existing liver disease, and deranged liver biochemistries in those without liver disease. In patients with cirrhosis with coronavirus disease 2019 (COVID-19), new onset organ failures manifesting as acute-on-chronic liver failure have also been reported. The severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) also directly binds to enterocytes and cholangiocytes via the angiotensin converting enzyme receptor 2, although the lung remains the portal of entry. Superadded with the COVID-19 related bystander hepatitis, a systemic inflammatory response is noted due to unregulated macrophage activation syndrome and cytokine storm. However, the exact definition and diagnostic criteria of the ‘cytokine storm’ in COVID-19 are yet unclear. In addition, inflammatory markers like C-reactive protein, ferritin, D-dimer and procalcitonin are frequently elevated. This in turn leads to disease progression, activation of the coagulation cascade, vascular microthrombi and immune-mediated injury in different organ systems. Deranged liver chemistries are also noted due to the cytokine storm, and synergistic hypoxic or ischemic liver injury, drug-induced liver injury, and use of hepatotoxic antiviral agents all contribute to deranged liver chemistry. Control of an unregulated cytokine storm at an early stage may avert disease morbidity and mortality. Several immunomodulator drugs and repurposed immunosuppressive agents have been used in COVID-19 with varying degrees of success.

Keywords

Chronic liver disease, COVID-19, Cytokines, Hepatitis, Gut-liver axis

Journal of Clinical and Translational Hepatology 2021 vol. 9, 256-264  [ Html  ] [ PDF Full-text ]

© 2021 Authors. This is an Open Access article distributed under the terms of the  Creative Commons Attribution-Noncommercial 4.0 License(CC BY-NC 4.0), permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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