PLoS ONE (Jan 2024)

Acute strength exercise training impacts differently the HERV-W expression and inflammatory biomarkers in resistance exercise training individuals.

  • Lucas Vinicius Morais,
  • Samuel Nascimento Dos Santos,
  • Tabatah Hellen Gomes,
  • Camila Malta Romano,
  • Patricia Colombo-Souza,
  • Jonatas Bussador Amaral,
  • Marina Tiemi Shio,
  • Lucas Melo Neves,
  • André Luis Lacerda Bachi,
  • Carolina Nunes França,
  • Luiz Henrique da Silva Nali

DOI
https://doi.org/10.1371/journal.pone.0303798
Journal volume & issue
Vol. 19, no. 5
p. e0303798

Abstract

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BackgroundHuman Endogenous Retroviruses (HERVs) are fossil viruses that composes 8% of the human genome and plays several important roles in human physiology, including muscle repair/myogenesis. It is believed that inflammation may also regulate HERV expression, and therefore may contribute in the muscle repair, especially after training exercise. Hence, this study aimed to assess the level of HERVs expression and inflammation profile in practitioners' resistance exercises after an acute strength training session.MethodsHealthy volunteers were separated in regular practitioners of resistance exercise training group (REG, n = 27) and non-trained individuals (Control Group, n = 20). All individuals performed a strength exercise section. Blood samples were collected before the exercise (T0) and 45 minutes after the training session (T1). HERV-K (HML1-10) and W were relatively quantified, cytokine concentration and circulating microparticles were assessed.ResultsREG presented higher level of HERV-W expression (~2.5 fold change) than CG at T1 (pConclusionREG individuals exhibited a significant upregulation of HERV-W and modulation of inflammatory markers when compared to CG. This combined effect could potentially support the process of skeletal muscle repair in the exercised individuals.