Association of irisin and oxidative stress with biochemical parameters in patients with metabolic syndrome.
Background Irisin, a hormone-like myokine, is suspected to have a role in metabolic syndrome (MetS) through regulating energy homeostasis and mediating physical activity. In this regard, the role of irisin and malondialdehyde (MDA) along with some other biochemical parameters in the prediction of MetS was examined in the present investigation. Materials and methods In the present case-control study, 36 subjects diagnosed with MetS according to International Diabetes Federation were considered as cases and were matched in age and gender with 31 healthy participants. The difference of biochemical indicators between cases and controls were determined whether by independent t-test or the Mann-Whitney U-test. The predictors of MetS and insulin resistance (IR) were examined through logistic and linear regressions analysis models, respectively. Results Irisin and MDA were not found to be predictors for MetS in logistic regression; p = 0.258 and p = 0.694, respectively. The IR was found to be the only direct predictor of MetS (p = 0.010). Similarly, in linear regression, irisin and MDA were not identified to be predictors for IR; p = 0.801 and p = 0.781, respectively. Conclusions The study did not show that irisin and MDA, directly and indirectly, were predictors of MetS disorder. The IR was only predictor of MetS.