催乳素是催乳素家族成员之一，它是一种主要由垂体前叶分泌的多肽类激素。

Prolactin is one kind of polypeptide hormone and is mostly excreted by prehypophysis.

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催乳素是催乳素家族成员之一，它是一种主要由垂体前叶分泌的多肽类激素。

Prolactin is one kind of polypeptide hormone and is mostly excreted by prehypophysis.

youdao