酒精摄入对与疼痛相关的功能激活的性别相关影响
Landrew Sevel1, Bethany Stennett-Blackmon2, Sara Jo Nixon3,4
1Department of Anesthesiology, University of Minnesota-Twin Cities, Minneapolis, Minnesota, USA.
Alcohol, clinical & experimental research
|November 19, 2025
概括
酒精镇痛会影响疼痛感知,男性饮酒时对疼痛的反应减少了大脑活化. 这些性别特异的神经效应可能与上下疼痛调节有关.
科学领域:
- 神经科学是一个神经科学.
- 疼痛研究 疼痛研究
- 药物成科学 药物成科学
背景情况:
- 酒精止痛 (AA) 是一种已知的现象,导致人们用酒精自我治疗.
- 酒精中毒会改变疼痛处理区域的大脑活动.
- 性别和家庭酒精使用史影响AA.
研究的目的:
- 在酒精中毒期间调查神经对疼痛的反应.
- 检查性和家族病史对酒精对疼痛感知影响的相互作用影响.
- 澄清涉及慢性疼痛和酒精使用障碍风险的神经通路.
主要方法:
- 97名参与者 (52%为女性) 在饮酒或服用安慰剂时接受了fMRI.
- 在热性疼痛刺激期间评估血液氧气水平依赖 (BOLD) 激活.
- 使用通用心理物理相互作用 (gPPI) 来分析功能连接和动脉旋转标签对脑血管的影响.
主要成果:
- 酒精和安慰剂条件之间的主观疼痛评级没有显著差异.
- 与安慰剂相比,男性在酒精中毒期间显示出右脊侧前额叶皮层BOLD激活的减少.
- 没有检测到酒精对大脑血流的影响;没有发现家族史的影响.
结论:
- 酒精可能会微妙地改变神经疼痛处理,特别是在上下调制中,具有性别特异性的影响.
- 区域间的大脑连接可能会更多地揭示酒精对疼痛感知的影响.
- 需要进一步研究各种酒精剂量和多维神经指标,以了解AA机制.
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