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β-内酰胺抗生素抑制大鼠吗啡身体依赖性的发展。

beta-Lactam antibiotic inhibits development of morphine physical dependence in rats.

作者信息

Rawls Scott M, Baron David A, Kim Jae

机构信息

Department of Pharmaceutical Sciences, Temple University Health Sciences Center, Philadelphia, Pennsylvania 1914, USA.

出版信息

Behav Pharmacol. 2010 Mar;21(2):161-4. doi: 10.1097/FBP.0b013e328337be10.

Abstract

beta-Lactam antibiotics enhance cellular glutamate uptake. As increased glutamatergic transmission is a primary mediator of opiate dependence, we tested the hypothesis that a beta-lactam antibiotic (ceftriaxone) prevents development of morphine physical dependence in rats. Morphine (20 mg/kg) was injected twice daily for 10 days to induce physical dependence. Naloxone (10 mg/kg) administration 1, 48, and 96 h after the last morphine injection induced a withdrawal syndrome characterized by the appearance of wet-dog shakes, teeth chattering, eye blinking, jumping, and paw tremor. Ceftriaxone (150, 200 mg/kg) injected once daily during chronic morphine exposure inhibited each naloxone-precipitated withdrawal sign. Ceftriaxone efficacy persisted even after the 96 h-naloxone (10 mg/kg) injection. These results suggest that beta-lactam antibiotics inhibit processes leading to development of morphine physical dependence.

摘要

β-内酰胺类抗生素可增强细胞对谷氨酸的摄取。由于谷氨酸能传递增加是阿片类药物依赖的主要介导因素,我们检验了以下假设:β-内酰胺类抗生素(头孢曲松)可预防大鼠吗啡身体依赖性的形成。每天两次注射吗啡(20mg/kg),持续10天以诱导身体依赖性。在最后一次注射吗啡后1、48和96小时给予纳洛酮(10mg/kg),诱发戒断综合征,其特征为出现湿狗样抖动、牙齿打颤、眨眼、跳跃和爪部震颤。在慢性吗啡暴露期间每天注射一次头孢曲松(150、200mg/kg)可抑制每种纳洛酮诱发的戒断症状。即使在注射96小时的纳洛酮(10mg/kg)后,头孢曲松的疗效仍然持续。这些结果表明,β-内酰胺类抗生素可抑制导致吗啡身体依赖性形成的过程。

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