App. Section #6: Endocrinology

An agonist of what hypothalamic hormone might be valuable in treating the above condition?

Dopamine

In the case of hyperprolactinemia induced by a non-functioning thyroid, what would the levels of PRL, TRH, TSH, and thyroid hormone be?

PRL, TRH, and TSH levels would be high and thyroid hormones would be low.

In the case of a hypothyroidism induced by a hyperprolactinemia (as in the case of a mother with the pituitary adenoma), what would the levels of PRL, TRH, TSH, and thyroid hormones be?

Prolactin would be high and TRH, TSH, and thyroid hormone would be low

What is TRH's non-reproduction (non-PRL) related role in the endocrine system?

TRH releases prolactin, which inhibits the production of TRH due to negative feedback. TRH stimulates the pituitary gland to secrete TSH.

Name 3 hypothalamic hormones that normally stimulate and one that normally inhibits prolactin (PRL) secretion

VIP, oxytocin, and PRH stimulate prolactin. Dopamine inhibits prolactin.