male rats to which oestradiol benzoate was administered intramuscularly twice a week for three weeks in 1 mg doses as an aqueous microcrystal suspension showed an increase in adenohypophyseal weight , in the number of lactotropic cells in the adenohypophysis ( demonstrated by immunohistochemical detection of prolactin ) and in polyphenol oxidase ( ceruloplasmin ) activity in the blood and hypothalamus .
C0032008
adenohypophysis
C0033371
prolactin