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Relationship between glucocorticoids and viral load during the Omicron wave in mainland China

Guangxu Bai1,2, Yan Li1,2, Yang Liu1,2

  • 1Emergency Department, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100730, China.

Virology Journal
|November 23, 2023
PubMed

Insights

Glucocorticoids did not accelerate coronavirus disease 19 (COVID-19) viral clearance or affect mortality. However, glucocorticoid therapy may aid in COVID-19 negative conversion and reduce inflammatory factors, potentially by regulating the immune response.

Area of Science:

  • Infectious Diseases
  • Pharmacology
  • Immunology

Background:

  • Coronavirus disease 19 (COVID-19) remains a significant global health concern.
  • The role of glucocorticoids in COVID-19 treatment, specifically regarding viral clearance and patient prognosis, is debated.
  • This study investigates the association between glucocorticoid use and COVID-19 viral load.

Purpose of the Study:

  • To examine the relationship between glucocorticoid therapy and COVID-19 viral load dynamics.
  • To assess the impact of glucocorticoids on viral clearance and patient outcomes in COVID-19.
  • To understand the potential immunomodulatory effects of glucocorticoids in COVID-19 patients.

Main Methods:

  • Retrospective analysis of COVID-19 patients admitted to Peking Union Medical College Hospital (late 2022-early 2023).
  • Collection of baseline, clinical, laboratory, immunological, and daily viral load data.
  • Statistical analysis using Kolmogorov-Smirnov test, Student's t test, Mann-Whitney U test, and Cox proportional-hazards model.

Main Results:

  • Glucocorticoids did not significantly alter COVID-19 viral clearance, replication, or 28-day/in-hospital mortality.
  • Glucocorticoid therapy was associated with a favorable factor for COVID-19 negative conversion in the Cox model.
  • Patients on glucocorticoids exhibited significantly decreased levels of inflammatory factors.

Conclusions:

  • Glucocorticoids may not directly impact SARS-CoV-2 viral load but could improve clinical symptoms.
  • The therapeutic benefit of glucocorticoids might stem from modulating the immune response to inflammatory storms.
  • Further research into the immunoregulatory mechanisms of glucocorticoids in COVID-19 is warranted.
Abstract

Keywords:
COVID-19CytokinesGlucocorticoidsViral clearanceViral load

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