:: Volume 10, Issue 4 (Int J Mol Cell Med (In Press) 2021) ::
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MicroRNA-145, Wnt3a, and Dab2 Genes Expression Changes of the Cardiomyocytes in Hypercholesterolemic Rats Exposed to the Aerobic Training
Soran Heidari1 , Kamal Azizbeigi 2, Kaveh Bahmanpour3
1- Department of Physical Education, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.
2- Department of Physical Education, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran. , kazizbeigi@gmail.com
3- Nursing Department, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran.
Abstract:   (322 Views)
The current study aimed to investigate the effect of a 12-week endurance training (ET) on microRNA-145 (miR-145) changes and Wnt3a and Dab2 cardiomyocytes genes expression of hypercholesterolemic Wistar male rats. Thirty-two male Wistar rats (191.2±19 g, 6-8 weeks age) were randomly assigned into the aerobic exercise-normal nutrition (ANN; n=8), hypercholesterolemic (HCL; n=8), aerobic exercise- hypercholesterolemic (ACL; n=8), and normal nutrition (NN; n=8). Hypercholesterolemia was created by adding 1% cholesterol to the food of the HCL and ACL rats. ET was done five sessions per week on nonconsecutive days for 12 weeks. Twenty-four hours after the last training session, the rats were killed, and the cardiomyocytes were removed.  The expression of miR-145, Wnt3a, and Dab2 genes in cardiomyocytes was assessed by real time PCR method. The expression of miR-145 significantly increased in the ANN group in comparison with other groups (P = 0.001). Also, Dab2 gene expression significantly decreased in the ANN group in comparison with ACL (P = 0.001) and HCL (P = 0.001) groups. The results also showed that the Wnt3a in the ANN group was significantly different from NN (p=0.001), ACL, and HCL (p=0.001) groups. It can be concluded that aerobic training and cholesterol-rich foods play an essential regulatory role in the expression of miR-145, Dab2, and Wnt3a genes. However, cholesterol-rich foods appear to play a more significant regulatory role than aerobic exercise training.   
 
Keywords: Diet, high-fat, myocytes, cardiac, miR145, microRNA
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Type of Study: Original Article | Subject: Other
Received: 2021/01/13 | Accepted: 2022/04/10 | Published: 2022/04/10


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Volume 10, Issue 4 (Int J Mol Cell Med (In Press) 2021) Back to browse issues page