α1 上腺素受体在饮酒但未饮酒的老鼠中调解类似恐慌的防御行为
Thatiane De Oliveira Sergio1, Jacob Kellner1, Sarah Wean1
1Department of Psychiatry, Indiana University School of Medicine (IUSOM), Indianapolis, IN 46202, USA.
Pharmaceuticals (Basel, Switzerland)
|April 26, 2025
概括
阿尔法-1上腺素受体 (α1ARs) 抑制与普拉佐辛特别影响酒精饮用者,增加逃脱延迟在恐慌般的行为测试. 这表明α1ARs是治疗与酒精有关的焦虑障碍的潜在目标.
科学领域:
- 神经科学是一个神经科学.
- 行为药理学行为药理学
- 动物模型 动物模型
背景情况:
- 动物的防御行为为人类的行为障碍提供了洞察力.
- 阿尔法-1上腺素受体 (α1ARs) 影响焦虑,酒精摄入,应激反应和认知灵活性.
- α1ARs在恐慌式逃跑行为中的作用尚不清楚.
研究的目的:
- 调查α1ARs在慢性饮酒大鼠中调节恐慌式逃跑行为的作用.
- 为了检查prazosin,一个α1AR阻断剂,对未喝过酒和喝酒的老鼠的避开和逃跑行为的影响.
主要方法:
- 使用了男性和女性Wistar大鼠,分为慢性饮酒者或酒精素质的老鼠.
- 施用了普拉佐辛 (0.75 mg/kg) 或载体,随后暴露于升高T迷宫 (ETM).
- 随后的行为测试包括光暗测试 (LDT) 和开放场测试.
主要成果:
- 普拉佐辛显著增加了在ETM上饮酒的男性和女性的逃脱延迟,而在未饮酒的老鼠中没有影响.
- 饮酒减少了女性的ETM避免,但男性没有.
- 普拉佐辛增加了女性饮酒者和男性素朴者在LDT中进入黑暗的延迟时间,并减少了男性的过渡,而不会影响开放场地运动.
结论:
- 阿尔法-1上腺素受体 (α1ARs) 在男性和女性饮酒者的逃生行为中起着至关重要的作用.
- 这些发现突出了α1ARs作为酒精使用障碍的潜在治疗标,其特征是恐慌和焦虑症状.
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