| ORIGINAL ARTICLE |
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| Year : 2018 | Volume
: 33
| Issue : 1 | Page : 20-24 |
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Vitamins E and C prevent DNA double-strand breaks in peripheral lymphocytes exposed to radiations from iodine-131
Mehdi Safaei1, Seyed Masoud Jafarpour1, Mehran Mohseni1, Morteza Salimian2, Hossein Akbari3, Fateme Karami4, Akbar Aliasgharzadeh1, Bagher Farhood1
1 Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran
2 Department of Medical Laboratory, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Iran
3 Department of Biostatistics, Faculty of Health Sciences, Kashan University of Medical Sciences, Kashan, Iran
4 Department of Nuclear Medicine, Shahid Beheshti Hospital, Kashan University of Medical Sciences, Kashan, Iran
Correspondence Address:
Dr. Mehran Mohseni
Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan
Iran
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/ijnm.IJNM_89_17
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Purpose: Iodine-131 is used as a radiopharmaceutical to treat thyroid cancer. The current study aimed to evaluate the effects of vitamins E and C on the level of DNA double-strand breaks (DSBs) caused by Radioiodine-131 (I-131) in human lymphocytes. Materials and Methods: Whole blood samples from human volunteers were incubated with a certain concentration of vitamins. After 1-h incubation, the samples were incubated with 20 μCi I-131/2 mL (blood + NaCl) for 1 h. To evaluate the effects of antioxidants, lymphocytes were separated, and the mean DSBs/cell was measured for each sample through γ-H2AX assay. Results: After 1-h incubation with 20 μCi I-131/2 mL (blood + NaCl), iodine-131 increased the level of DSBs by 102.9%, compared with the background group. Vitamins E and C reduced the level of DSBs by 21.5% and 36.4%, respectively. Conclusion: Using vitamins E and C as antioxidants can reduce the toxicity of I-131. Furthermore, vitamin C provided the more protection for DNA, compared with vitamin E.
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