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基本皮质醇水平调节压力诱导的阿片类药物寻找行为
Mark K Greenwald1,2, Eric A Woodcock1,3, Tabitha E H Moses1
1Dept. of Psychiatry and Behavioral Neurosciences, School of Medicine, Wayne State University, Detroit, MI, USA.
Neurobiology of stress
|November 11, 2024
概括
约欣宾和皮增加了阿片类药物使用障碍患者的压力反应和阿片类药物寻找. 当这些系统被刺激时,较低的基线皮质醇水平预测了更大的药物寻找,这表明了新的治疗目标.
科学领域:
- 神经科学是一个神经科学.
- 心理药理学 心理药理学
- 成 药物 药物 药物 药物
背景情况:
- 约欣宾是一种α2-noradrenergic对手,促进寻找药物的行为.
- 像皮素这样的葡萄糖皮质体受体激动剂也会影响压力和奖励通路.
- 了解这些系统的综合作用对于成治疗至关重要.
研究的目的:
- 评估单独或联合使用的约欣宾和皮对应激反应和寻找阿片类药物的剂量依赖性影响.
- 为了建模依赖强度的诺亚上腺体和葡萄糖皮质体系统的刺激.
- 研究基底皮质醇水平在调节这些效应中的作用.
主要方法:
- 这是一项双盲,安慰剂控制,对12名被诊断患有阿片类药物使用障碍 (OUD) 的参与者进行的主体内研究,该研究对布普伦诺芬稳定.
- 在3x3的因数设计中,服用不同剂量的约欣宾 (0,27,54毫克) 和皮 (0,20,40毫克) 的口服剂量.
- 评估主观影响,心血管反应,唾液皮质醇和α-氨基酶,以及阿片类药物与金钱增强的渐进式比率任务.
主要成果:
- 约欣宾增加了血压,α-氨基酶和焦虑,同时减少了阿片类药物戒断症状.
- 皮质增加了皮质醇水平.
- 在具有较低基线皮质醇的参与者中,联合约宾和皮质转移了对寻求阿片类药物的反应.
结论:
- 诺拉丁和葡萄糖皮质体系统的刺激增强了寻求阿片类药物的行为,特别是在基线皮质醇较低的个体中.
- 基底HPA轴活动和急性压力因素可以增加阿片类药物的相对增强疗效,在个人与OUD在布普伦诺芬.
- 这些发现突显了当前OUD治疗的潜在局限性,并建议新的干预目标,以减轻压力诱导的阿片类药物寻求.
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