Document Type : Original Article
Authors
1 PHD student of Exercise Physiology, Department of Physical Education and Exercise Science, Boinord Branch, Islamic Azad University, Boinord, Iran.
2 Associate Professor at Department of Exercise Physiology, Faculty of Sport Sciences, Ferdowsi University of Mashhad, Mashhad, Iran
3 Assistant Professor at Department of Physical Education and Sport Sciences, Boinord Branch, Islamic Azad University, Boinord, Iran.
4 Assistant Professor at Department of Physical Education, Farhangian University, Tehran, Iran.
Abstract
Background and Aim: Alzheimer's disease is defined as the most common age-related neurodegenerative diseases. Therefore, the aim of the present study was to compare the effects of diets with and without caloric restriction along with continuous training on the expression of selected genes effective in Alzheimer's disease of old male rats. Materials and Methods: For this purpose, 36 old male rats (26 months old, with an average weight of 437.8 ± 41.3 grams) were randomly divided into four groups as control group, continuous training group, continuous training with caloric restriction group, and caloric restriction group. The rats of the training groups performed continuous exercises for eight weeks and 5 sessions per week, by following the overload principle on the treadmill. Also, caloric restriction was initially applied with a 30% reduction and then a 20% reduction in the rats’ food consumed. Continuous exercises were performed for eight weeks and 5 sessions per week (10 minutes to 20 minutes) following the overload principle on a treadmill. Brain tissue was taken 24 hours after the last training session and gene expression was done by real-time PCR method. Furthermore, ANOVA with Tukey's post hoc test was used to analyze the results. Results: The findings demonstrated a significant difference between groups in Tau gene expression (p=0.02). Moreover, there was no significant difference in amyloid beta gene expression and insulin levels in old male rats (p = 0.486). Conclusion: In general, continuous training with and without caloric restriction could not lead to a significant change in APP gene expression. But the results of the research showed significant changes in Tau gene expression in the brain tissue of elderly male rats, preferably with the aim of preventing Alzheimer's.
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