Document Type : Original Article
Authors
1 Assistant professor, Department of Biology, Payame Noor University, Tehran, Iran
2 Department of Biology, Faculty of sceinces, payame noor university, Tehran,Iran
3 Associate professor, Department of Biology, Payame Noor University, Tehran, Iran
Abstract
Introduction: The diagnostic and therapeutic applications of radioiodine and X-rays have raised attention to the biological hazards of these agents. This study aimed to investigate the changes in melatonin hormone levels following exposure to radioiodine and X-ray radiation.
Materials and Methods: Sixty male rats were randomly divided into three equal groups: a control group, a group receiving 1 mCi of iodine-131 for 2 weeks, and a group exposed to X-ray radiation once. After anesthetization, blood samples were collected from the hearts of the rats, and serum melatonin levels were measured.
Results: Data analysis revealed a significant decrease in melatonin levels in the group treated with iodine-131 compared to the control group. However, no significant change in melatonin levels was observed in the X-ray exposure group compared to the control group.
Conclusion: The findings indicate that exposure to radioiodine leads to a significant reduction in the melatonin hormone levels, whereas X-ray exposure does not significantly affect melatonin levels.
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Main Subjects
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