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Environ Res. 1989 Aug;49(2):190-6.

The effect of lead on thyroid function in children.

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1
Occupational Medicine Program, Yale University School of Medicine, New Haven, Connecticut 06510.

Abstract

Exposure to inorganic lead has been associated with impaired uptake of iodine by the thyroid as well as depressed estimated free thyroxine levels in occupationally exposed adults. Consideration of the serious consequences of impaired thyroid function in young children prompted investigation of the effects of lead on thyroid function in children. Blood lead determinations and thyroid function tests were performed on 68 children examined at a hospital outpatient pediatric clinic. Serum thyroxine (T4) and free thyroxine (FT4) levels were within the normal range for all patients. No statistically significant relationship was found between lead levels and T4 or FT4 levels. We conclude that lead is unlikely to have a clinically significant effect on thyroid function in children exposed in inner cities at prevailing levels.

PMID:
2753005
[Indexed for MEDLINE]

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