催乳素未能启动母羊的泌乳过程。

The failure of prolactin to initiate lactogenesis in the ewe.

作者信息

Hooley R D

出版信息

Aust J Biol Sci. 1979 Jun;32(3):359-61. doi: 10.1071/bi9790359.

Abstract

Infusion of exogenous prolactin (NIH-P-S11) at 1 mg/h for 10 h into ewes pretreated for 30 days with oestradiol benzoate and progesterone was unable to initiate milk secretion. Similarly primed ewes injected with 10 microgram thyrotrophin releasing hormone also failed to lactate but all ewes injected with dexamethasone (10 mg daily for 5 days) after oestrogen plus progesterone treatment secreted copious quantities of milk. The results suggest that prolactin, itself, is not capable of initiating lactogenesis in the ewe.

摘要

对用苯甲酸雌二醇和孕酮预处理30天的母羊以1毫克/小时的速度注入外源性催乳素（NIH-P-S11）10小时，未能启动乳汁分泌。同样，经类似预处理的母羊注射10微克促甲状腺激素释放激素也未能泌乳，但所有在雌激素加孕酮处理后注射地塞米松（每天10毫克，共5天）的母羊都分泌了大量乳汁。结果表明，催乳素本身并不能启动母羊的泌乳过程。