Submitted: 11 Mar 2019
Accepted: 16 Sep 2018
First published online: 28 Oct 2019
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J Shahrekord Univ Med Sci. 2019;21(1):25-30.
  Abstract View: 156
  PDF Download: 105

Original Article

Short-term exercise training increases plasma levels of klotho and total antioxidant capacity in male Wistar rats

Maral Ramez 1 ORCiD, Farinaz Nasirinezhad 2, Hamid Rajabi 1 * , Nahid Aboutaleb 2, Nasim Naderi 3

1 Department of Exercise Physiology, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran
2 Physiology Research Center and Physiology Department, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
3 Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
*Corresponding Author: Hamid Rajabi, Faculty of Physical Education and Sports Sciences, Kharazmi University, Tehran, Iran, Email: , Tel: 021-22269549 Email: hrajabi@hotmail.com

Abstract

Background and aims: Soluble or circulating form of Klotho (i.e., anti-aging and longevity protein) has biological effects on various body cells and tissues. Considering the role of exercise training on protective proteins, the present study aimed to investigate and compare the effects of short-term high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on plasma levels of Klotho, total antioxidant capacity (TAC), and malondialdehyde (MDA).

Methods: In this study, 24 male Wistar rats with a weight range of 250-300 g and 8-10 weeks old were randomly divided into control, HIIT, and MICT groups. Training included five consecutive days on the treadmill. HIIT including 6×2 minutes high intermittence with 85%-90% Vo2 max and 5×2 minutes slow intermittence (active recovery) with 55%-60% Vo2 max. MICT program was performed at 70% Vo2 max that total distance running was the same for the HIIT group. Then, the plasma levels of Klotho, TAC, and MDA were measured by ELISA assay. Finally, one-way ANOVA and post-hoc Tukey tests were used for statistical analysis.

Results: Based on the results, a significant increase was observed in plasma levels of Klotho and TAC in both HIIT and MICT groups compared to the control group (P<0.001) while these changes were significantly more dominant in the HIIT group compared to MICT group (P=0.024). However, the results demonstrated no significant difference between the groups regarding MDA (P=0.109). Contrarily, the finding revealed a significant positive correlation between Klotho and TAC (r=0.79, 0.83, 0.79 in control, HIIT, and MICT groups, respectively, P<0.05), whereas a significant negative association between Klotho with MDA within all the groups (r= -0.78, - 0.86, and -0.81).

Conclusion: In general, even short-term aerobic exercise training, especially HIIT increases circulating Klotho and TAC, therefore, this can confirm the positive effects of the training-induced exercise.

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