PMID: 15244374Jul 13, 2004Paper

Oxidative and genotoxic damage after radio-iodine therapy of Graves' hyperthyroidism

International Journal of Radiation Biology
M BallardinR Barale

Abstract

To evaluate genetic damage and oxidative stress following a single therapeutic dose of 131I in Graves' disease patients monitored up to 180 days after treatment. Genetic damage induction was estimated as the increase in micronuclei in peripheral lymphocytes of patients. As indicators of radiogenic oxidative stress, vitamin E and lipoperoxide levels were assessed in the plasma of patients, as well as the release of plasmic clastogenic factors measured by the induction of micronuclei in vitro in peripheral lymphocytes of a healthy donor. Vitamin E depletion lasted at least 3 days and the basal level was restored within 7 days. No statistically significant variations were observed in lipoperoxide plasma levels. A sharp increase of micronuclei in the peripheral lymphocytes of patients was correlated (p < 0.001) with the release of clastogenic factor in the plasma. The highest micronucleus value was negatively correlated (p < 0.03) with the lowest vitamin E level observed in each patient. Micronuclei induction was the direct consequence not only of the energy deposition of 131I on the genetic material, but also of oxidative stress, likely via the release of clastogenic factor.

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Citations

Feb 19, 2013·Cancer Biotherapy & Radiopharmaceuticals·Sanam AramiS Abolghasem Haeri
Aug 2, 2013·Future Oncology·Zohreh Noaparast, Seyed Jalal Hosseinimehr
Sep 5, 2015·BioMed Research International·Olivia Torres-BugarínMaría Guadalupe Zavala-Cerna
Dec 19, 2009·Radiation and Environmental Biophysics·Carita LindholmSisko Salomaa
Jul 27, 2006·The Journal of Clinical Endocrinology and Metabolism·Angela DardanoFabio Monzani
Aug 23, 2007·The Journal of Clinical Endocrinology and Metabolism·A DardanoF Monzani

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