雌激素对卒中后抑郁大鼠血清单胺类递质的影响

Effect of estrogen on the monoamine neurotransmitter in the serum of rats with post-stroke depression

目的:探讨雌激素对卒中后抑郁(PSD)大鼠的血清单胺类递质的影响。方法:选用雌性SD大鼠,经Open-Field行为学评分后随机分成对照组、卒中组、PSD组、药物治疗组和雌激素干预组,所有大鼠均行卵巢切除术。对照组为常规饲养;卒中组去卵巢后7d采用线栓法制备局灶性脑缺血大鼠模型;PSD组为卒中大鼠结合孤养、束缚应激制备PSD大鼠模型;药物治疗组对PSD大鼠模型行帕罗西汀灌胃治疗;雌激素干预组对PSD大鼠模型皮下包埋雌激素释放管。观察雌激素对PSD大鼠自发性行为和外周血去甲肾上腺素(NE)和5-羟色胺(5-HT)的影响。结果:与对照组比较,PSD组大鼠旷场实验水平和垂直得分明显减少,外周血NE和5-HT浓度明显降低,差异有统计学意义(P<0.05)。与PSD组比较,雌激素干预组大鼠旷场实验得分增加,外周血5-HT和NE浓度明显升高,差异有统计学意义(P<0.05)。与药物治疗组相较,雌激素干预组大鼠旷场实验得分、外周血5-HT浓度差异无统计学意义(P>0.05)。结论:雌激素能够改善PSD大鼠的行为学、增加血清5-HT浓度,提示对PSD大鼠有脑保护作用。

AIM:To study the effect of estrogen on the monoamine neurotransmitter in the serum of rats with post-stroke depression(PSD).METHODS:The female Sprague Dawley rats weighted 220-230 g were randomly divided into control group,stroke group,PSD group,antidepressant treatment group and estrogen treatment group according to the scores of Open-Field test.Rats in all groups were performed ovariectomy first.Rats in control group were feed commonly.Seven days later,rats in the stroke group,PSD group,drug treatment gro...