The Possible Ameliorative Effect of Zinc on Aluminium Induced Thyroid Toxicity in Rats
Abbas, M., Zaki, A. (2016). The Possible Ameliorative Effect of Zinc on Aluminium Induced Thyroid Toxicity in Rats. EKB Journal Management System, 24(2), 97-112. doi: 10.21608/mjfmct.2016.47927
Mohammed F. Abbas; Amr R. Zaki. "The Possible Ameliorative Effect of Zinc on Aluminium Induced Thyroid Toxicity in Rats". EKB Journal Management System, 24, 2, 2016, 97-112. doi: 10.21608/mjfmct.2016.47927
Abbas, M., Zaki, A. (2016). 'The Possible Ameliorative Effect of Zinc on Aluminium Induced Thyroid Toxicity in Rats', EKB Journal Management System, 24(2), pp. 97-112. doi: 10.21608/mjfmct.2016.47927
Abbas, M., Zaki, A. The Possible Ameliorative Effect of Zinc on Aluminium Induced Thyroid Toxicity in Rats. EKB Journal Management System, 2016; 24(2): 97-112. doi: 10.21608/mjfmct.2016.47927

The Possible Ameliorative Effect of Zinc on Aluminium Induced Thyroid Toxicity in Rats

Mansoura Journal of Forensic Medicine and Clinical Toxicology
Article 7, Volume 24, Issue 2, July 2016, Page 97-112  XML PDF (19.45 MB)
Document Type: Original Article
DOI: 10.21608/mjfmct.2016.47927
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Authors
Mohammed F. Abbas1; Amr R. Zaki email 2
1Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine- Minia University, Egypt.
2Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine- Beni-Suef University*, Egypt.
Abstract
Aluminium (Al) is an environmental xenobiotic that induces disruption in pituitary-thyroid function. Zinc is essential for many biochemical processes and for cell proliferation. The aim of this study was to analyze the thyroid toxicity induced by Al in rats and to evaluate the possible ameliorative effect of zinc. The study was conducted on forty male albino rats randomly divided into 4 groups: control group, zinc group treated with zinc sulphate (2 mg/kg), Al group treated with AlCl3 (20 mg/kg), and AlCl3 (20 mg/kg) + Zn (2 mg/kg) group. Rats were treated orally once daily for 30 consecutive days. At the end of the experiment, rats given aluminium alone had significantly higher MDA (malondialdehyde), superoxide dismutase in thyroid tissue and lower serum T3, T4 and TSH levels than the control group. Co-treatment of zinc with aluminium had an ameliorative effect on the previous parameters. Light and electronic microscopic investigations revealed that aluminium caused marked degenerative changes in the thyroid of rats. Restoration of the normal architecture of thyroid tissues were observed in rats received aluminium + zinc combination. Thus, aluminium can induce oxidative damage in rat thyroid and zinc has an ameliorative effect against this damage. 
Keywords
Keywords: Aluminium; thyroid toxicity; zinc; oxidative damage
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