The Effect of Enriched Environment and Two Types of Forced Exercise on Irisin and BDNF Protein Levels in the Hippocampus of Female Mice with Experimental MS

Asadi, Reza; Kordi, Mohammad reza; Shabkhiz, Fatemeh

doi:10.61186/jsmt.21.25.130

Volume 21, Issue 25 (9-2023) RSMT 2023, 21(25): 130-146 | Back to browse issues page

‎ 10.61186/jsmt.21.25.130

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Asadi R, Kordi M R, Shabkhiz F. The Effect of Enriched Environment and Two Types of Forced Exercise on Irisin and BDNF Protein Levels in the Hippocampus of Female Mice with Experimental MS. RSMT 2023; 21 (25) :130-146
URL: http://jsmt.khu.ac.ir/article-1-577-en.html

The Effect of Enriched Environment and Two Types of Forced Exercise on Irisin and BDNF Protein Levels in the Hippocampus of Female Mice with Experimental MS

Reza Asadi

, Mohammad reza Kordi

, Fatemeh Shabkhiz

Tehran University , mrkordi@ut.ac.ir

Abstract: (2298 Views)

Neurodegenerative processes play an important role in the progression of MS. Appropriate exercise training and living in an enriched environment (EE) can improve or prevent the progression of the disease through the secretion of some neurodevelopmental factors in the hippocampus, including irisin and the neutrophic factor derived from the mouse. The aim of the present study was to investigate the effect of 4 weeks of aerobic and resistance training and EE on irisin protein and hippocampus BDNF levels in female C57BL6 mice with experimental autoimmune encephalomyelitis (EAE). 50 female mice (age 8 weeks, average weight 18 ± 2 grams) were randomly divided into five equal groups (10 mice in each group): 1- healthy control, 2- control + EAE, 3- resistance activity + EAE, 4- Aerobic activity + EAE and 5- EE + EAE. The first and second weeks of adaptation to the environment and then induction of EAE were performed. The training groups trained 5 days a week for half an hour a day for 4 weeks, and the EE group was transferred to its equipped cage. 48 hours after the last training session, the mice were anesthetized and then dissected and tissue removed. The ELISA method was used to measure the amounts of proteins, and the analysis of variance and Tukey's t-test were used to determine the differences between the research variables. All analyzes were performed at a significance level of 0.05 and with SPSS22 software. Hippocampal BDNF expression was increased in all three training groups compared to the EAE control group. This increase in the EE and resistance training group was significant compared to both the EAE control group and the swimming training group. Also, hippocampal irisin expression increased in all three training groups compared to the EAE control group, and this increase was significant in the EE and resistance training groups. Also, the expression of irisin in the EE group increased more than the two aerobic swimming and resistance training groups, and this increase was proportional to It was meaningful to the swimming aerobic training group. It seems that EE and resistance training can increase the secretion of nerve growth factors such as irisin and BDNF and thus help to improve MS disease.

Keywords: Multiple sclerosis, Voluntary Exercises, Forced Exercises, EE, Hippocampus

Full-Text [PDF 2102 kb] (643 Downloads)

Type of Study: Research | Subject: sport physiology
Received: 2023/05/8 | Accepted: 2023/07/11 | Published: 2023/09/1

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