Effects of neonatal gonadectomy on the differentiation of prolactin and growth hormone cells in the chicken adenohypophysis: a quantitative electron microscopic study.
The ultrastructural stereological analysis of prolactin, growth hormone, and gonadotroph cells in the hypophysis of neonatally gonadectomized, 3-month-old male and female chickens was performed. The observed ultrastructural changes (especially of granular endoplasmic reticulum and content of secretory granules) demonstrated reduced biosynthetic activity of prolactin cells in neonatally ovariectomized females and increased activity of prolactin cells in neonatally orchidectomized male chickens.
D000818:Animals; D000831:Animals, Newborn / Q000502:physiology; D002369:Castration / Q000662:veterinary*; D002454:Cell Differentiation; D002645:Chickens / Q000502:physiology*; D005260:Female; D013006:Growth Hormone / Q000502:physiology*; D008297:Male; D010903:Pituitary Gland, Anterior / Q000166:cytology* / Q000648:ultrastructure; D011388:Prolactin / Q000502:physiology*
D011388:Prolactin; D013006:Growth Hormone