Prolactin Suppresses GnRH but Not TSH Secretion

Abstract

These studies demonstrate that hyperprolactinemia suppresses pulsatile LH secretion but not TSH secretion and suggest that GnRH secretion is sensitive to hyperprolactinemia, but that TSH secretion is not. These data further suggest that the degree of GnRH disruption after 7 days of hyperprolactinemia is insufficient to disrupt menstrual cyclicity.