Dursun, Ali Doğan

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Citation - WoS: 2
Citation - Scopus: 3
Irisin Pathways in Hearts of Type 1 Diabetic Adult Male Rats Following 6 Weeks of Moderate and High-Volume Aerobic Exercise on a Treadmill
(Springernature, 2023) Celik, Humeyra; Dursun, Ali Dogan; Tatar, Yakup; Omercioglu, Goktug; Bastug, Metin
Purpose Exercise-mediated protection from cardiomyopathy in diabetes through myokines raises the question of what volume of exercise should be performed. Irisin pathway molecules (consisting of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1 alpha), irisin, peroxisome proliferator-activated receptors-alpha (PPAR-alpha) and uncoupling protein 1 (UCP1)), which have been shown to be mostly expressed in the heart, are thought to have beneficial effects on diabetic heart. The aim of the study is to evaluate the effects of different exercise protocols on irisin pathway in Type 1 diabetic heart. Methods Diabetic (60 mg/kg streptozotocin i.p.) and healthy Wistar Albino rats (n = 60) were trained under moderate and high-volume exercise protocols on rat treadmill for 6 weeks. After killing, mRNA transcript and protein abundance of PGC-1 alpha, irisin, PPAR-alpha, and UCP1 were determined in the left ventricles of healthy and diabetic rats. Results PPAR-alpha, FNDC5, and UCP1 mRNA levels increased significantly in healthy moderate-volume exercise group (HMVE) compared to healthy high-volume exercise (HHVE) and diabetic moderate-volume exercise groups (DMVE). Moreover, protein levels of irisin and UCP1 also elevated significantly in the diabetic high-volume exercise group (DHVE) compared to the healthy control group (HC), although there was no significant difference between the groups in PPAR-alpha. Conclusion Irisin and UCP1 protein values increased due to HHEV in the heart of Type 1 diabetic rats, but PPAR-alpha values did not change; it shows that HHEV is suitable for the heart of Type 1 diabetic rats in terms of the benefits of the pathway of irisin.
Citation - WoS: 29
Citation - Scopus: 32
Effects of Exercise Training on Anxiety in Diabetic Rats
(Elsevier, 2019) Caliskan, Hasan; Akat, Firat; Tatar, Yakup; Zaloglu, Nezahet; Dursun, Ali Dogan; Bastug, Metin; Ficicilar, Hakan
Diabetes mellitus (DM) is a common health problem, which manifests itself with chronic hyperglycemia and impaired insulin action. The prevalence of anxiety disorders tends to be high in the diabetic population. Exercise has a well-known anxiolytic effect, also demonstrated on rodents, but the effect of exercise on the DM-induced anxiety is still unknown. Female, Wistar albino rats were randomly divided into four groups (n=8) (C; EX; DM; DM+EX). DM was induced by injection (i.p.; 50 mg/kg) of Streptozotocin (STZ). Rats exercised in moderate intensity on the treadmill (15m/min; 5 degrees; 30 min) for 5 weeks. Anxiety-like behavior (ALB) was evaluated by Open field test (OFT) and Elevated Plus Maze (EPM). According to OFT, central time and central entry have increased with in EX but not in DM+EX. There was no difference between C and DM. Central latency time didn't differ among groups. Unsupported rearing increased in both EX and DM+EX. There was no significant decrease in DM. Freezing time was significantly increased in the DM group. Exercise training reduced freezing time both in diabetic and non-diabetic animals. EPM results were similar. Time spent in open arm was increased significantly in exercise groups compared to their sedentary matches, and freezing time data were also parallel to OFT. Our study revealed that diabetes had shown an anxiogenic effect, which was not severe, and it only manifested itself on some behavioral parameters. Exercise training was reduced anxiety-like behavior both in diabetic and non-diabetic rats. However, because of the nature of exercise studies, it is hard to separate the anxiolytic effect of exercise from the alteration of locomotion.

Journal	Count
International Journal of General Medicine	4
Drug Design, Development and Therapy	3
Medicina	3
Gazi Medical Journal	2
Bratislava Medical Journal	2

Dursun, Ali Doğan

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