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:: Editorial Board
:: About Iranian Journal of Endocrinology and Metabolism
:: Volume 21, Issue 1 (7-2019) ::
2019, 21(1): 1-8 Back to browse issues page
Effect of Transient Congenital Hypothyroidism on Oxidative Stress in Cardiac Tissue of Adult Male Rats
Mahboubeh Ghanbari , Sajad Jeddi , Reza Norouzirad , Asghar Ghasemi
Endocrine Physiology Research Center , Ghasemi@endocrine.ac.ir
Abstract:   (3762 Views)

Introduction: Increased oxidative stress is involved in the pathology of cardiovascular disease. Transient congenital hypothyroidism (TCH) leads to a variety of heart disorders during adulthood. In this study, the effect of TCH on antioxidant and oxidant systems in the serum and left cardiac ventricle of adult male rats was investigated. Materials and Methods: TCH was induced by administrating 6-propyl-2-thiouracil in the drinking water of pregnant Wistar rats throughout pregnancy, while pregnant rats in the control group consumed only tap water. Superoxide dismutase, catalase (CAT) enzymes, total antioxidant capacity (TAC) and malondialdehyde were measured in the serum and the left ventricles of adult (16 weeks) male offspring. Lipid peroxidation index (LPI) was calculated in serum and cardiac tissue. Results: The results of this study show that CAT activity, TAC level and also LPI in the serum of rats in the TCH group were significantly higher than in controls. In the left ventricular tissue of the TCH group, compared to the control group, CAT activity (107.5±13.1 vs. 159.6±12.3 KU/L, P=0.013) and TAC levels (172.2±7.6 vs. 235.6±13.1 µmol/L, P=0.001) were significantly lower. Conclusions: Decreased CAT activity and TAC in left ventricular cardiac tissue show that TCH can lead to increased oxidative stress of cardiac tissue in offspring. Increased cardiac oxidative stress may therefore contribute to the decreased cardiac function observed in patients with TCH.

Keywords: Transient congenital hypothyroidism, Oxidative stress, Cardiac tissue, Male rat
Full-Text [PDF 1182 kb]   (1033 Downloads)    
Type of Study: Original | Subject: Endocrinology
Received: 2019/02/4 | Accepted: 2019/04/20 | Published: 2019/07/15
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Ghanbari M, Jeddi S, Norouzirad R, Ghasemi A. Effect of Transient Congenital Hypothyroidism on Oxidative Stress in Cardiac Tissue of Adult Male Rats . Iranian Journal of Endocrinology and Metabolism 2019; 21 (1) :1-8
URL: http://ijem.sbmu.ac.ir/article-1-2542-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 21, Issue 1 (7-2019) Back to browse issues page
مجله ی غدد درون‌ریز و متابولیسم ایران، دو ماهنامه  پژوهشی مرکز تحقیقات غدد درون‌ریز و متابولیسم، Iranian Journal of Endocrinology and Metabolism
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