寒冷条件下大鼠血浆、垂体、下丘脑中β－EP含量的改变

The effects of cold stimulation on β-EP contents of plasma pituitary and hypothalamus in mice

本文利用健康成年雄性Ｗｉｓｔａｒ大鼠，采用放射免疫学方法，观测了大鼠在不同寒冷条件下血浆、垂体、下丘脑中β－ＥＰ含量变化。结果表明：血浆、垂体、下丘脑中β－ＥＰ含量在冷刺激过程中总的趋势表现为升高，但Ⅱ组垂体中β－ＥＰ含量下降（Ｐ＜０．０５），且下丘脑中β－ＥＰ含量明显升高（Ｐ＜０．００１）。

The effects of cold stimulation on β-EP of plasma,pituitary and hypotha-lamus were observed by RIA methods this study.The results demonstrated that the β-EPcontents in plasma pituitary and hypothalamus increased. However in group Ⅱ,theβ-EPcontents of pituitary decreased(P<0.05)while that in the bypothalamus increased mark-edly(P<0.01).