Abstract
Thyroid alterations have been shown to occur following exposure to polybrominated diphenyl ether (PBDE) mixtures, possibly indicating that disruptions in thyroid hormone levels may underlie behavior deficits observed in animals following postnatal PBDE exposure. This study determined whether acute postnatal exposure to PBDE-47 would alter thyroid hormones. Mice were dosed with PBDE-47 on postnatal day 10, and serum collected either 1, 5, or 10 days after the dose. No effect was observed on thyroxine and triiodothyronine levels at any age examined. This suggests that the neurological abnormalities reported in mice exposed to PBDE-47 are not due to acute changes in circulating thyroid hormones at these observed periods.
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