Journal
HUMAN & EXPERIMENTAL TOXICOLOGY
Volume 19, Issue 9, Pages 497-501Publisher
NATURE PUBLISHING GROUP
DOI: 10.1191/096032700677928536
Keywords
thyroid hormone; endocrine disruptors; radioimmunoassay; hypothyroidism; hyperthyroidism; pesticides; formulators
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Thirty male pesticide formulators exposed to the dust and liquid formulation of endosulfan, quinalphos, chlorpyriphos, monocrotophos, lindane, parathion, phorate, and fenvalerate and 20 comparable control subjects from the same area of study were examined for the evaluation of thyroid function tests. The level of TSH was elevated (about 28%) in pesticide formulators as compared to a control group, but the increase was statistically insignificant. Based on the individual TSH measurement, 3 of 30 formulators had isolated elevated levels of TSH and seem to have acquired sub-clinical hypothyrodism; five had TSH values slightly elevated to the upper boarder line (4.03 mu IU/ml); and the majority of formulators (N=22) had TSH values in the normal range varying from 1.29 to 3.9 mu IU/ml. Total Ts was suppressed significantly (P<0.01) in formulators, while marginal decrease (about 7%) was noticed in T-4 level. This study indicated thyroid function impairment in few pesticide formulators.
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