Micronucleus frequencies in groups receiving external or internal radiation.

Abstract

OBJECTIVE:

In the current study, we aimed to explore whether there is alteration between pre- and post-treatment micronucleus (MN) frequencies induced by internal and external ionizing radiation.

MATERIALS AND METHODS:

The study enrolled a total of 67 patients including patients admitted to our hospital for treatment of hyperthyroidism (n = 17), scanning with low-dose I-131 (n = 15), and ablative therapy with high-dose I-131 (n = 15) at Department of Nuclear Medicine as well as patients with different diagnoses receiving external radiotherapy with various doses and durations at Department of Radiation Oncology (n = 20). Thirty-two patients who received radioactive iodine and returned for a follow-up visit at 1 month.

RESULTS:

Considering both pre- and post-treatment MN frequencies of each group, lowest MN frequencies were detected for patients undergoing screening with low-dose I-131, and highest MN frequencies were found in radiotherapy patients. Comparison of pre- and post-treatment MN frequencies among hyperthyroidism, when pre- and post-treatment MN frequencies compared among hyperthyroidism, I-131 whole body scanning, ablation, and radiotherapy patient groups differences between MN frequencies were significant for each group (P < 0.05).

CONCLUSION:

Our study showed that MN analysis might be of value in determining chromosome damage that could potentially occur in patients exposed to internal and external radiation.

• Authors: Ayşegül Özdal, Taner Erselcan, Öztürk Özdemir, Güler Silov, Zeynep Erdoğan, Özgül Turhal
• Journal: Indian journal of nuclear medicine : IJNM : the official journal of the Society of Nuclear Medicine, India (Indian J Nucl Med) 2016 Jul-Sep Vol. 31 Issue 3 Pg. 179-84 ISSN: 0972-3919 [Print] India
• PMID: 27385886 (Publication Type: Journal Article)