【摘 要】
：
目的观察添加雌激素后海人藻酸(Kainic acid,KA)致癎大鼠皮层和海马的雌激素β受体(ER-β)的变化.方法用荧光免疫组化法.结果ER-β免疫阳性细胞广泛分布于大鼠的皮层、海马、
【机 构】
：
复旦大学附属中山医院神经内科,上海200032
论文部分内容阅读
目的观察添加雌激素后海人藻酸(Kainic acid,KA)致癎大鼠皮层和海马的雌激素β受体(ER-β)的变化.方法用荧光免疫组化法.结果ER-β免疫阳性细胞广泛分布于大鼠的皮层、海马、下丘脑以及杏仁核区域,主要位于细胞核.单纯添加雌激素(17-βestradiol,E2)组、海人藻酸致癎(KA)组、添加雌激素后海人藻酸致癎(E2加KA)组海马的ER-β免疫阳性细胞数较对照组(OIL组)明显减少(P＜0.05),以DG(齿状回,Dentate Gyrus)区的变化最明显;皮层(Cortex)的ER-β免疫阳性细胞表达变化不显著.E2+KA组的ER-β免疫阳性细胞与KA组相比减少,(P＜0 05).结论大剂量雌激素下调ER-β免疫阳性细胞的表达,且此作用有区域性.添加雌激素后致癎,ER-β免疫阳性细胞下调更显著,雌激素可能是通过下调DG区ER-β的表达加重癫癎的发作.
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