The Effect of Four Weeks of Aerobic Swimming on the Levels of Brain-Derived Neurotrophic Factor (BDNF) and Tyrosine Receptor Kinase B (TrkB) in the Brain of Animal Model of Experimental Autoimmune Encephalitis (EAE)
BackgroundMultiple sclerosis (MS) is known as a neuroimmunological disease in human being. The evidences show that brain-derived neurotrophic factor (BDNF) and its specific receptor, tyrosine receptor kinase B (TrkB) play a role in the development of multiple sclerosis. Previous studies demonstrated that various interventions affect the expression of these factors. This study aimed to investigate the effect of four weeks of aerobic swimming on the level of BDNF and TrkB in the brain of mice with experimental autoimmune encephalomyelitis (EAE) or animal model of multiple sclerosis.
MethodsA total number of 80 C57BL/6 mice, aging 10 to 12 weeks and weighing 20 ± 2 gram were divided into eight groups of 10, control, swimming (SW), EAE, EAE SW, EAE solvent (SOL), EAE interferon-beta (IFN), EAE environment (En) SOL, and EAE SW IFN. On post-immunization day 9, animals received IFN (150 IU/g) or were subjected to swimming daily for 4 weeks (5 days/week). Brains were extracted and the levels of BDNF and TrkB were measured via enzyme-linked immunosorbent assay (ELISA). The data were analyzed using one-way ANOVA.
Findings: EAE decreased BDNF and increased TrkB level in the brain of EAE-induced mice. Level of BDNF and TrkB increased in mice brain following swimming and IFN treatment; however these alterations were not significant.
ConclusionThese findings suggest that probably swimming is more effective than IFN to alter the level of BDNF and TrkB in the brain of EAE-induced mice.
Journal Of Isfahan Medical School, Volume:35 Issue:448, 2017
1263 - 1270
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