Document Type : Research Paper I Open Access I Released under (CC BY-NC) license
Authors
1 Department of Physical Education and Sports Science, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran.
2 Department of Physical Education and Sports Science, Ayatollah Amoli Branch, Islamic Azad University, Amol, Iran
Abstract
Aim: Diabetes leads to extensive cardiac fibrosis, which worsens as disease progresses, culminating in diabetic cardiomyopathy. In this study, we investigated the effect of aerobic exercise (AT) and berberine chloride (BR) on the expression of TGF-β/Smad4 heart tissue in diabetic rats.
Methods: In this experimental study, 32 male Wistar rats (276/09±17.03, 10 weeks old) were randomly divided into four groups (n=8): Diabetes (DM), Diabetes-Berberine (BRDM), Diabetes-Aerobic Training (ATDM), Diabetes-Aerobic Training-Berberine (ATBRDM). Diabetes was induced by injection of streptozotocin. Training groups have performed a progressive aerobic running program (at 10-18 m/min, 10-40 min/day, and 5 days/week) on a motor-driven treadmill for six weeks. Berberine chloride (30 mg/kg/day) were administered orally, by gavage, once a day. At the end of six weeks-- heart tissue samples were collected. TGF-β and Smad4 gene expression levels were measured by real-time PCR. Data were analyzed using ANOVA at p<0.05.
Results: The results showed that AT, BR and AT-BR combination in diabetic rats significantly decreased TGF-β (p = 0. 0001)) and Smad4 (p = 0. 0001) in heart tissue. Also, a significant decreased the amount of this index was observed in the ATBRDM compared to the BRDM and ATDM groups (p <0.05).
Conclusions: AT and BR by improving heart tissue fibrosis markers is an effective strategy to improve cardiac fibrosis in diabetic rats with STZ. In addition, AT and BR supplementation showed a protective cardioprotective effect of reducing cardiac fibrosis markers.
Keywords
Main Subjects
Publisher: University oF Guilan Copyright © The Authors
This is an open access article distributed under the following Creative Commons license: Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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