progastrin

例句：

1. 1. Prolactin is a hormone that regulates lactation in mammals.
   催产素是一种调节哺乳动物乳腺分泌的激素。
2. 2. The woman's prolactin levels were significantly higher than those of her husband.
   这位妇女的催产素水平显著高于她的丈夫。
3. 3. Prolactin therapy has been shown to improve breast milk production in lactating women.
   研究表明，催产素疗法可以改善哺乳期妇女的乳汁产量。