The potential benefits of omega-3 fatty acids and branched-chain amino acids (BCAAs) supplements on exercise-induced apoptosis are not clear. In a crossover randomized study, 11 men (age = 62.8 ± 2.2 years) performed an acute bout of resistance exercise and underwent 1-week supplementation with either 20 g of BCAA or 2,700 mg of omega-3/day. Subjects performed the same exercise after supplementation protocols. Following a 3-week washout period, subjects switched groups. Circulating levels of soluble Fas ligand (sFasL), cytochrome c, Bax, Bcl-2, and nuclear factor-kappa B were measured before and immediately after exercise sessions. sFasL, cytochrome c, and Bax increased after exercise. Simple main effect of time on sFasl was significant in control trial but not in omega-3 and BCAA trials. There were no differences in nuclear factor-kappa B and Bcl-2 between control and supplement trials. This study showed that adding omega-3 fatty acids or BCAA to the dietary regime of old men could partially attenuate resistance exercise-induced apoptosis.
Sheikholeslami-Vatani is with the Dept. of Physical Education and Sport Sciences, University of Kurdistan, Sanandaj, Iran. Ahmadi is with Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran; and the Dept. of Medical Physiology and Pharmacology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran. Faraji is with the Dept. of Physical Education and Sports Science, Marivan Branch, Islamic Azad University, Marivan, Iran.