Elucidating of oxidative distress in COVID-19 and methods of its prevention

Chem Biol Interact. 2021 Aug 1:344:109501. doi: 10.1016/j.cbi.2021.109501. Epub 2021 May 8.

Abstract

The pandemic of SARS-CoV-2 stimulates significant efforts and approaches to understand its global spread. Although the recent introduction of the vaccine is a crucial prophylactic step, the effective treatment for SARS-CoV-2 is still undiscovered. An in-depth analysis of symptoms and clinical parameters, as well as molecular changes, is necessary to comprehend COVID-19 and propose a remedy for affected people to fight that disease. The analysis of available clinical data and SARS-CoV-2 infection markers underlined the main pathogenic process in COVID-19 is cytokine storm and inflammation. That led us to suggest that the most important pathogenic feature of SARS-CoV-2 leading to COVID-19 is oxidative stress and cellular damage stimulated by iron, a source of Fenton reaction and its product hydroxyl radical (•OH), the most reactive ROS with t1/2-10-9s. Therefore we suggest some scavenging agents are a reasonable choice for overcoming its toxic effect and can be regarded as a treatment for the disease on the molecular level.

Keywords: 8-Oxo-guanosine; COVID-19; DNA methylation; Epigenetics; Fenton reaction; Inflammation; Iron; Lycopene; Oxidative stress; ROS; SARS-CoV-2.

MeSH terms

  • COVID-19 / metabolism*
  • COVID-19 / prevention & control*
  • Cytokine Release Syndrome / metabolism
  • Cytokines / metabolism
  • Humans
  • Hydroxyl Radical / metabolism
  • Inflammation / metabolism
  • Iron / metabolism
  • Oxidation-Reduction
  • Oxidative Stress / physiology*
  • Pandemics / prevention & control*
  • Reactive Oxygen Species / metabolism
  • SARS-CoV-2 / isolation & purification
  • SARS-CoV-2 / metabolism

Substances

  • Cytokines
  • Reactive Oxygen Species
  • Hydroxyl Radical
  • Iron