Thyroid Function and Disorders Writer and Curator: Larry H. Bernstein, MD, FCAP Normal thyroid function is maintained by endocrine interactions between the hypothalamus, anterior pituitary and thyroid gland [Matfin, 2009]. Iodide is transported across the basement membrane of the thyroid cells by an intrinsic membrane protein called the Na/I symporter (NIS). At the apical border, […]![]()
