PROLACTIN COUNTERACTS EFFECTS OF SHORT DAY LENGTHS ON PELAGE GROWTH IN THE MEADOW VOLE, MICROTUS-PENNSYLVANICUS
PROLACTIN COUNTERACTS EFFECTS OF SHORT DAY LENGTHS ON PELAGE GROWTH IN THE MEADOW VOLE, MICROTUS-PENNSYLVANICUS
复制标题
DOI：
10.1002/jez.1402530208
复制
发表时间：
1990-02-01
影响因子：
--
通讯作者：
ZUCKER, I
中科院分区：
文献类型：
--
作者：
SMALE, L;LEE, TM;ZUCKER, I
为了检验短日长冬衣的生长是否取决于血浆泌乳素（Prl）水平的抑制，将雌性草原田鼠（Microtus pennsylvanicus）保持短日长12周，每天注射生理盐水或Prl；长时间使用多巴胺激动剂、溴隐碱（bromo）、溴加Prl或生理盐水。在短日长的田鼠中，Prl对冬毛的生长有抑制作用，但溴隐碱对长日的田鼠无刺激作用。在较短的白昼长度中，被毛的生长似乎取决于血浆催乳素水平的降低。
To test whether growth of the winter coat in short day lengths is contingent on suppression of plasma prolactin (Prl) levels, female meadow voles (Microtus pennsylvanicus) were kept in short day lengths for 12 weeks and were injected daily with saline or Prl; long-day animals were treated with either the dopamine agonist, bromocryptine (bromo), bromo plus Prl, or saline. Prl treatment prevented the growth of the winter coat normally observed for 12 weeks in short day lengths, but bromocryptine did not stimulate pelage growth in long-day voles. Pelage growth in short day lengths appears contingent upon decreased plasma prolactin levels.