Journal of Tropical Pediatrics Advance Access published online on October 1, 2009
Journal of Tropical Pediatrics, doi:10.1093/tropej/fmp096
Residual Goiter in Semirom; Iodine Status and Thiocyanate Overload Do Not Play a Role
aMedical Students Research Center, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran, bIsfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Isfahan, Iran and cIsfahan Cardiovascular Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
Correspondence: Mahin Hashemipour, Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences, Sedigheh Tahereh Medical Research Complex, Khorram Street, Isfahan, Iran. E-mail: <hashemipour{at}med.mui.ac.ir>.
Abstract
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This study was performed to investigate the role of thiocyanate overload in the etiology of endemic goiter in schoolchildren of Semirom, Iran. A total of 1828 schoolchildren were selected by multi-stage random sampling. Urinary iodine concentration (UIC) and urinary thiocyanate (USCN) were measured in a group of these children. The median UIC was 18.5 µg/dl. The mean ± SD of USCN in goitrous and nongoitrous subjects did not differ significantly (0.75 ± 0.78 mg/dl vs. 0.63 ± 0.40 mg/dl; p = 0.30). Finally, we concluded that neither iodine deficiency nor thiocyanate overload contributed to the high prevalence of goiter in Semirom. The role of other goitrogenic factors should be investigated in this region.
Key Words: goiter iodine deficiency goitrogens thiocyanate Iran