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MicroRNA levels in hemodialysis patients following resistance training: Associations with functional performance, inflammatory profile, sestrins-2, and nitric oxide

2022; Elsevier BV; Volume: 162; Linguagem: Inglês

10.1016/j.exger.2022.111761

1873-6815

Hugo de Luca Corrêa, Rodrigo Vanerson Passos Neves, Lysleine Alves Deus, Andrea Lucena Reis, Artur Temizio Oppelt Raab, Paolo Lucas Rodrigues-Silva, Jessica Mycaelle da Silva Barbosa, Thaís Branquinho de Araújo, Marcelo Guido Silveira da Silva, Carlos Ernesto Santos Ferreira, Herbert Gustavo Simões, Jonato Prestes, Octávio Luiz Franco, Rosângela Vieira de Andrade, Thiago dos Santos Rosa,

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Investigate the effects of long-term resistance training (RT) on expression of the four selected microRNAs (miRNA or mir) and further association with biomarkers related to functional performance in older end-stage renal disease (ESRD) patients undergoing hemodialysis.Twenty-five older hemodialysis patients (glomerular filtration rate <15 mL/min/1.73 m2 aged 68.28 ± 1.06) were recruited for the study. Patients were allocated to two groups (control, n = 12 and RT, n = 13). The RT group completed 24 weeks of training, with sessions held three times per week on alternate days. Blood samples were collected pre- and post- intervention for miRNA and biochemical assays. Results were considered significant at P < 0.05.RT promoted benefits in inflammatory profile, nitric oxide, sestrins-2, anthropometric data, and functional performance. Trained subjects presented a 51% decrease in miRNA-31 after intervention. In addition, miRNA-1 increased 128% after RT protocol. miRNA-1 significantly correlated with functional performance, inflammatory profile, sestrins-2, and nitric oxide (all P < 0.05).These results suggest that the upregulation of miRNA-1 could be associated with physiological benefits promoted by RT in hemodialysis patients, providing novel understanding for potential regulatory miRNA effects on physiological RT response. These findings might point out to strategic direction for future studies.