Zongjian CHENG Ye

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Measurements of beta-endorphin (beta-EP) and Met-enkephalin (MEK) contents in various brain areas and plasma of ground squirrels were carried out by radioimmunoassay (RIA) through euthermia, entrance, deep hibernation and arousal phases of natural hibernation bout. The main results showed that, the beta-EP content in hypothalamus and pituitary during the(More)
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