the results indicate that in the hypothyroid rat : severe hypothyroidism results in a blunted pituitary tsh response to trh through 14 days after thyroidectomy , at 7 and 14 days after thyroidectomy the pituitary tsh response to exogenous trh is inversely related to the basal plasma tsh concentration , the pituitary tsh concentration increases with the duration of hypothyroidism , the pituitary tsh content is increased by low rates of thyroid hormone replacement , and the pituitary tsh response to exogenous trh is directly related to the pituitary tsh content .
C0020676
hypothyroid
C0700502
increases