{'fraction_non_alphanumeric': 0.029641827912721283, 'fraction_numerical': 0.025524907369287773, 'mean_word_length': 4.841346153846154, 'pattern_counts': {'":': 0, '<': 1, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Comparison the Influence of Various Intensities of Aerobic Training on the Expression of RBL-1 and RB1 Genes in the Subcutaneous Adipose Tissue of Male Wistar Rats

Background and Purpose: One of the most important methods to cope with obesity metabolic disorder is to do exercise activities that are both effective as a prevention and treatment. Since the expression of adipogenic genes such as Retinoblastoma-1 (RB1) and Retinoblastoma like-1 (RBL-1) proteins are effective in adipogenesis, the aim of this study was to investigate the influence of various intensities of aerobic training on the expression of RB1 and RBL-1 genes in the subcutaneous adipose tissue of male Wistar rats. Materials and Methods: In this experimental study, 32 male Wistar rats (eight weeks old and weight: 237 ± 33 grams) were randomly divided into four equal groups: control, high intensity training (HIT), Mod-erate-intensity training (MIT) and high-intensity interval training (HIIT). The treadmill training protocols consisted of eight weeks, so that the HIT training consisted of running at a speed of 20 meters per minute or with an intensity of 65% of maximum oxygen consumption (VO2max), with a gradual increasing slope for 30 minutes. MIT training consisted of running at 65% VO2max for 37 minutes and HIIT training consisting of four bouts of high-intensity intervals with four minutes running at 90 to 100% VO2max and four bouts of low-intensity intervals with three minutes running at 50 to 60% VO2max (28 minutes in total). 24 hours after the last training session, the animals were sacrificed and their subcutaneous fat tissue was removed and gene expression was measured by RT-PCR. The obtained data were analyzed due to lack of natural distribution using Kruskal-wallis test and Bonferoni post hoc test through SPSS statistical software version 24 And significance level was considered P < 0.05. Results: The results of the present study showed that the expression of RB1 gene was significantly reduced only in the MIT group compared to the control group (P = 0.027). Also, RBL-1 gene expression was significantly lower only in the HIT group than in the control group (P = 0.028). Conclusion: Since in this study only MIT and HIT aerobic exercises with 65% VO2max intensity could reduce the expression of RB1 and RBL-1 genes, the use of this type of exercise to improve metabolic dis-orders and inhibit adipogenesis is recommended.