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:: Volume 9, Issue 4 (3-2008) ::
2008, 9(4): 351-356 Back to browse issues page
Cytological Radiotoxicity of Radioiodine Therapy in Patients with Differentiated Thyroid Carcinoma
A. Hooman , M. Mogharrabi, N. Mosaffa, F. Tabeie, B. Shafiee, E. Neshandar Asli
, dr_arefhooman@yahoo.com
Abstract:   (33222 Views)
Abstract Introduction: Cytological radiation damage to lymphocytes can result in augmentation of cells with micronuclei. In this study we investigated cytological radiation damage to peripheral blood lymphocytes using the micronuclei assay (MNA) method. Considering the value of Iodine-131 in diagnostic and therapeutic nuclear medicine and high absorbed dose of I131 radioiodine in comparison with gamma emitters and the effect of type of radiation, dose and species on radiosensitivity of patients, this study was conducted. To evaluating the cytological radiotoxicity of therapeutic radiotracers such as radioiodine I131. Materials and Methods: We studied 22 patients with differential thyroid carcinoma who were referred for treatment with 100 or 150 mci I131. Before and one weak after treatment the peripheral lymphocytes were harvested and isolated by a cytological method and assayed for frequency of micronuclei as a marker of cytological radiotoxicity. Results: The means of micronuclei in one hundred binuclear lymphocytes were 6.3±2.2 before treatment and and 9.6±3.1 after treatment, differences in the number of micronuclei being statistically significant (p value <0.05). Conclusions: High doses of radioiodine therapy used after surgery for differentiated thyroid carcinoma can increase micronuclei among peripheral lymphocytes as an indirect marker of chromosomal aberrations and cytotoxic radiation damage.
Keywords: Thyroid carcinoma, Radioiodine therapy, Mmicro nuclei, Lymphocyte, Radiation, Chromosomal aberration, Ccytotoxic damage
Full-Text [PDF 608 kb]   (5006 Downloads)    
Type of Study: Original | Subject: Endocrinology
Received: 2008/05/7
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Hooman A, Mogharrabi M, Mosaffa N, Tabeie F, Shafiee B, Neshandar Asli E. Cytological Radiotoxicity of Radioiodine Therapy in Patients with Differentiated Thyroid Carcinoma. Iranian Journal of Endocrinology and Metabolism. 2008; 9 (4) :351-356
URL: http://ijem.sbmu.ac.ir/article-1-458-en.html


Volume 9, Issue 4 (3-2008) Back to browse issues page
مجله ی غدد درون‌ریز و متابولیسم ایران، دو ماهنامه  پژوهشی مرکز تحقیقات غدد درون‌ریز و متابولیسم، Iranian Journal of Endocrinology and Metabolism
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