Altered mitochondrial respiration in peripheral blood mononuclear cells of post-acute sequelae of SARS-CoV-2 infection

Mitochondrion. 2024 Mar:75:101849. doi: 10.1016/j.mito.2024.101849. Epub 2024 Feb 9.

Abstract

Peripheral blood mononuclear cells (PBMC) mitochondrial respiration was measured ex vivo from participants without a history of COVID (n = 19), with a history of COVID and full recovery (n = 20), and with PASC (n = 20). Mean mitochondrial basal respiration, ATP-linked respiration, maximal respiration, spare respiration capacity, ATP-linked respiration, and non-mitochondrial respiration were highest in COVID + PASC+ (p ≤ 0.04). Every unit increase in non-mitochondrial respiration, ATP-linked respiration, basal respiration, spare respiration capacity, and maximal respiration increased the predicted odds of PASC between 1 % and 6 %. Mitochondrial dysfunction in PBMCs may be contributing to the etiology of PASC.

Keywords: COVID; Long COVID; Mitochondria; PASC.

MeSH terms

  • Adenosine Triphosphate
  • COVID-19*
  • Disease Progression
  • Humans
  • Leukocytes, Mononuclear*
  • Post-Acute COVID-19 Syndrome
  • Respiration
  • SARS-CoV-2

Substances

  • Adenosine Triphosphate