Endocrine Abstracts

Thyroid hormone (TH) is essential for the developing nervous system. Early in pregnancy, the maternal thyroid is the fetal brain's sole source of hormone while later, the developing fetal thyroid assumes an increasingly greater role to be fully independent by term. Because brain structures vary as to timing of need for TH, different types of brain impairment and, correspondingly, different neurobehavioral deficits reflect the exact period of TH was insufficient. Several human ...