雌性大鼠去卵巢对海洛因复吸和共患精神症状的影响

来源 :第十五届中国神经精神药理学学术会议 | 被引量 : 0次 | 上传用户:lianxingjiehaha
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  目的 观察性激素对雌性大鼠复吸和共患精神症状的影响.方法 成年雌性SD大鼠去卵巢后采用FR1训练程序建立海洛因静脉自身给药行为,连续训练14 d后消退,进行复吸测试,其后应用强迫游泳,高台十字迷宫等分别测试动物的抑郁和焦虑样症状.结果 正常对照组和去卵巢组大鼠的自身给药行为如有效反应数和海洛因注射针数没有明显差异,线索诱导和海洛因诱导的复吸行为两组之间也没有显著性差异.在强迫游泳实验中海洛因自身给药的去卵巢组雌性大鼠僵直时间比正常组延长,结果有统计学差异(P<0.01);高台十字迷宫实验中,海洛因自身给药的去卵巢组雌性大鼠在闭合臂停留时间也较正常组增加,结果有统计学差异(P<0.05).结论 研究结果提示雌性激素的减少可能与海洛因奖赏和复吸过程没有密切联系,但海洛因慢性处理后雌性激素缺乏可能更容易共患抑郁和焦虑.
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