The Effect of High-Intensity Interval Training on Apoptotic-Related Genes in Skeletal Muscle and Serumic TNF-Alpha of Diabetic Rats
Publish place: Iranian Journal of Diabetes and Obesity، Vol: 15، Issue: 1
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJDO-15-1_008
تاریخ نمایه سازی: 16 آبان 1402
Abstract:
Objective: Diabetes is characterized by a comprehensive increase in apoptosis, mitochondrial dysfunction, and inflammation in skeletal muscle. Impaired mitochondrial function in skeletal muscle leads to an increase in Cytochrome C and Caspase-۹, and muscle performance is reduced consequently. Exercise training through decreasing inflammatory factors and increasing anti-inflammatory elements prevents apoptosis pathways.
Materials and Methods: Forty male Wistar rats (۱۵۰±۱۰ g, ۸ weeks age) were assigned to ۴ groups: control (C), diabetes (D), high-intensity interval training (HIIT), and diabetes high-intensity interval training (DHIIT). Diabetes was induced with intraperitoneal injections of Streptozotocin (STZ) and blood sugar higher than ۲۵۰ was considered diabetic. The effects of six weeks of HIIT on soleus muscles, Cytochrome C, and Caspase-۹ gene expression, as well as evaluation of tumor necrosis factor-alpha (TNF-α) in serum were evaluated using Real-Time PCR and ELISA techniques respectively.
Results: In comparison with C group Diabetes has significantly increased the Cytochrome C (P= ۰.۰۰۱) and caspase-۹ (P= ۰.۰۰۳). However, HIIT training in diabetic rats significantly decreased the Cytochrome C (P= ۰.۰۰۱) and caspase-۹ (P= ۰.۰۰۸) in comparison of D group. Also, TNFα (P= ۰.۰۱) increased in the D group in comparison with C and DHIIT group (P= ۰.۰۰۱). In comparison between DHIIT groups in HIIT groups, has a significant increase in time to exhaustion post test than pretest (P= ۰.۰۰۱).
Conclusion: It seems that HIIT training decreases intrinsic factors of the apoptosis pathway by decreasing inflammatory factors which leads to significant improvement in skeletal muscle function and overall health in diabetic rats.
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Authors
Neda Khaledi
Associate Professor, Department of Exercise Physiology, Faculty of Physical Education, Kharazmi University, Tehran, Iran.
Shahrzad Soleimani Dehnavi
PhD Student in Kinesiology, The University of Laval, Quebec, Canada.
Shaghayegh Abbasi
MSc Exercise Physiology, Department of Exercise Physiology, Faculty of Physical Education, Kharazmi University, Tehran, Iran.
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