title: The influence of sex hormones on the pineal gland of the chick: a histochemical and ultrastructural study.
abstract: The pineal gland of chicks treated with oestrogens and androgens has been studied histochemically and ultrastructurally from post-hatching until 90 days of age. The results obtained may demonstrate a precocious maturity of the gland caused by its response to the early high level of sex hormones circulating in the blood.
mesh_terms: D000135:Acid Phosphatase / Q000378:metabolism; D000375:Aging; D000818:Animals; D002645:Chickens; D004958:Estradiol / Q000494:pharmacology*; D006651:Histocytochemistry; D008854:Microscopy, Electron; D010870:Pineal Gland / Q000187:drug effects* / Q000201:enzymology / Q000648:ultrastructure; D013739:Testosterone / Q000494:pharmacology*
chemical_list: D013739:Testosterone; D004958:Estradiol; D000135:Acid Phosphatase