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阿片受体激动剂和拮抗剂对小鼠应激诱导的皮质酮分泌的影响。

The effects of opiate receptor agonists and antagonists on the stress-induced secretion of corticosterone in mice.

作者信息

Gibson A, Ginsburg M, Hall M, Hart S L

出版信息

Br J Pharmacol. 1979 Jan;65(1):139-46. doi: 10.1111/j.1476-5381.1979.tb17342.x.

Abstract

1 Intraperitoneal administration of normorphine, morphine or naloxone or exposure to ether vapour for 1 min, elevated plasma corticosteroid concentrations in mice. 2 Injection of saline or exposure to ether vapour rendered mice less sensitive to a subsequent exposure to ether vapour 15 min later. 3 Treatment with normorphine (50 mg/kg) potentiated the corticosteroid response to ether stress whilst pentazocine (20 mg/kg), naltrexone (10 mg/kg), morphine (24 mg/kg), levorphanol (20 mg/kg) and naloxone (50 mg/kg) prevented the stress-induced elevation of plasma corticosteroids. 4 Both naloxone and morphine inhibited the potentiation by normorphine of the response to ether, the dose of naloxone required being higher than that for inhibition of normorphine analgesia. 5 It is concluded that endogenous opioid peptides may be involved in the control of the response to ether stress in mice.

摘要
  1. 腹腔注射去甲吗啡、吗啡或纳洛酮,或让小鼠暴露于乙醚蒸气1分钟,均可提高小鼠血浆皮质类固醇浓度。2. 注射生理盐水或暴露于乙醚蒸气会使小鼠对15分钟后再次暴露于乙醚蒸气的敏感性降低。3. 用去甲吗啡(50毫克/千克)处理可增强皮质类固醇对乙醚应激的反应,而喷他佐辛(20毫克/千克)、纳曲酮(10毫克/千克)、吗啡(24毫克/千克)、左啡诺(20毫克/千克)和纳洛酮(50毫克/千克)可防止应激诱导的血浆皮质类固醇升高。4. 纳洛酮和吗啡均抑制去甲吗啡对乙醚反应的增强作用,所需纳洛酮剂量高于抑制去甲吗啡镇痛所需剂量。5. 得出的结论是,内源性阿片肽可能参与了小鼠对乙醚应激反应的控制。

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