Document Type : Research Paper

Authors

1 Ph.D. in Sport Physiology, University of Mazandaran

2 Professor Sport Physiology, University of Mazandaran

3 Assistant Professor of Sport Physiology, Shahed University, Tehran

Abstract

Considering the important role of inflammation in pulmonary disorders the purpose of this study was to investigate the effect of a period of swimming training on Tumor necrosis factor alpha (TNF-α)and Nuclear factor- kappa B (NF-κB) gene expression in lung tissue of wistar rats. Twenty wistar rats of five weeks ages with the weight range of 102±23 g randomly divided into control (n=10) and swimming training groups (n=10). The training protocol included three months of swimming (5 times per week) which begun from 25 minutes in the first week (with the water flow intensity of 4 liters per minute) and reached to 60 minutes (with the water flow intensity of 10 liters per minute) at the final week. Quantitative Real-Time PCR used for detecting and quantifying expression profiles of TNF-αand NF-κB genes in the lung tissue of rats. Kolmogorov-Smirnov test was used to test the normality of data distribution and Independent t test was used to determine the between group differences (α <0.05). Results showed TNF-αand NF-κB gene expression in the lung tissue were decreased significantly in swimming training group (Respectively P=0.0001, P=0.001). Since TNF-αand NF-κB are responsible for beginning the cascade of proinflammatory cytokines and chemokines that induce inflammatory responses, reduction in the gene expression of this factors might reduce the risk of pulmonary disorders.

Keywords

Main Subjects

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