title: Inhibition of in vitro prolactin secretion by histidyl-proline-diketopiperazine, a degradation product of TRH.
mesh_terms: D000818:Animals; D066298:In Vitro Techniques; D008297:Male; D010456:Peptides, Cyclic / Q000494:pharmacology*; D010879:Piperazines / Q000494:pharmacology*; D010902:Pituitary Gland / Q000187:drug effects / Q000378:metabolism; D011388:Prolactin / Q000378:metabolism*; D051381:Rats; D013973:Thyrotropin-Releasing Hormone / Q000378:metabolism
chemical_list: D010456:Peptides, Cyclic; D010879:Piperazines; D013973:Thyrotropin-Releasing Hormone; D011388:Prolactin