Volume 21, Issue 5 (10-2018)                   J Arak Uni Med Sci 2018, 21(5): 21-31 | Back to browse issues page

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Salesi M, Mehrtash M, Daryanoosh F, Tanide N. The Role of Caloric Restriction on Lipid Coat Proteins Gene Expression and Insulin Resistance after 8 Weeks High Caloric Diet in Male Rats . J Arak Uni Med Sci. 2018; 21 (5) :21-31
URL: http://jams.arakmu.ac.ir/article-1-5604-en.html
1- Department of Exercise Physiology, Shiraz University, Shiraz, Iran.
2- Department of Exercise Physiology, Shiraz University, Shiraz, Iran. , m_mehrtash_67@yahoo.com
3- Stem Cell Research Center, Department of Pharmacology, Faculty of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Abstract:   (404 Views)
Background and Aim: Excessive fat accumulation is one of the most important mechanisms of type 2 diabetes and insulin resistance. Accordingly, in this study, we will examine the effect of caloric restriction on lipid coat proteins that prevent lipolysis of the adipose tissue.
Materials and Methods: In this study, 30 adult male Sprague-Dawley rats (200 ± 20 weight) were used. First, rats were divided into 2 groups (standard and high-calorie diet). After 8 weeks, the high-calorie diet group was randomly assigned to two subgroups: caloric restriction and high-fat diet. Finally, the amount of perilipin 1 and 5 genes expression evaluated by Pcr and insulin resistance evaluated by HOMA index.
Findings: The weight and insulin resistance of the high-fat diet group was significantly higher than the standard and calorie restriction group (p≤0.005). Insulin resistance was not significantly different between the caloric restriction and standard group (p = 0.394). The expression of perilipin 1 in the adipose tissue of the high-fat diet was significantly higher than the caloric restriction group (p ≤0.005). The expression of perilipin 1 gene in skeletal muscle in the high-fat diet group was significantly higher than the calorie restriction and standard diet groups (p≤0.005). The calorie restriction group had more perilipin 5 expressions than the high-fat diet and the standard group (p ≤0.005).
Conclusion: The caloric restriction may be due to the effect on lipid coat proteins and, as a result, a decrease in fat accumulation, that it can prevent insulin resistance.
Full-Text [PDF 2274 kb]   (181 Downloads)    
Type of Study: Original Atricle | Subject: Nutrition
Received: 2018/01/29 | Accepted: 2018/06/13

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