TY - JOUR JF - ijmcmed JO - Int J Mol Cell Med VL - 7 IS - 4 PY - 2018 Y1 - 2018/11/01 TI - Evaluation of Ameliorative Potential of Vitamins E and C on DNA Double Strand Break (DSB) in Patients Undergoing Computed Tomography (CT): A Clinical Study TT - N2 - Computed tomography (CT) is one of the most important diagnostic X-ray procedures which plays an important role in increasing the patient dose values. The purpose of this clinical study was to evaluate the efficacy of vitamins E and C in lowering down the level of DNA double strand break (DSB) caused by CT scan. Sixty patients for abdomen/pelvic enhanced CT scan were randomly assigned to placebo (control), vitamin C, and vitamin E groups. The patient blood samples were taken before and immediately after the CT scan. Counting the number of DSB was performed using γ-H2AX method as a sensitive biomarker. Immediately after the CT scan, the mean number of DSBs/cell increased in all three groups of control (131%, P < 0.001), vitamin C (103%, P < 0.001), and vitamin E (66%, P < 0.001) compared to their mean before the CT scan. Furthermore, the results showed that vitamin E decreased the mean number of DSBs/cell by 22% in comparison with the control group (P = 0.023), whereas vitamin C had no significant effect on reducing the DSB (<3%, P = 0.741). It is concluded that the administration of vitamin E one hour before the CT scan, significantly decreases DSB levels. SP - 226 EP - 233 AU - Jafarpour, Seyed Masoud AU - Salimian, Morteza AU - Mohseni, Mehran AU - Talari, Hamid Reza AU - Aliasgharzadeh, Akbar AU - Farhood, Bagher AU - Moradi, Habiballah AU - Safari, Hossein AD - Department of Radiology and Medical Physics, Faculty of Paramedicine, Kashan University of Medical Sciences, Kashan, Iran. KW - Computed tomography (CT) KW - DNA double strand break (DSB) KW - vitamin C KW - vitamin E UR - http://ijmcmed.org/article-1-950-en.html DO - 10.22088/IJMCM.BUMS.7.4.226 ER -