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β-内啡肽:猫体内耐受性的发展及其被5-羟色氨酸逆转的情况

beta-Endorphin: development of tolerance and its reversal by 5-hydroxytryptophan in cats.

作者信息

Hosobuchi Y, Meglio M, Adams J E, Li C H

出版信息

Proc Natl Acad Sci U S A. 1977 Sep;74(9):4017-9. doi: 10.1073/pnas.74.9.4017.

Abstract

Tolerance to beta-endorphin developed acutely in cats if the administration of the peptide was repeated within the first 24 hr. The tolerance was reversed immediately by systemic administration of the serotonin precursor, 5-hydroxytryptophan. It was further shown that 5-hydroxytryptophan potentiates the analgesic effect of the subliminal dose of beta-endorphin.

摘要

如果在最初24小时内重复给予肽类物质,猫会迅速产生对β-内啡肽的耐受性。通过全身给予血清素前体5-羟色氨酸,耐受性会立即逆转。进一步研究表明,5-羟色氨酸可增强阈下剂量β-内啡肽的镇痛效果。

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