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EFFECTS OF ESTRADIOL BENZOATE ON SYNAPTOPHYSIN, PARVALBUMIN AND CALBINDIN D28K IMMUNOREACTIVITY IN HIPPOCAMPUS OF OVARIECTOMIZED RATS
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- Author:
- No author available
- Journal Title:
- ACTA PHARMACEUTICA SINICA
- Issue:
- 5
- DOI:
- 10.3321/j.issn:0513-4870.2000.05.005
- Key Word:
- 苯甲酸雌二醇;突触素;钙结合蛋白;去卵巢大鼠
Abstract： 目的探讨苯甲酸雌二醇对大鼠海马CA1区、齿状回突触素(synaptophysin,Syn)及钙结合蛋白(calbindinD28k,CaBP,parvalbumin,PV)的调节作用.方法用大鼠卵巢切除(OVX)动物模型,用免疫组化结合图象分析的方法.结果 OVX组大鼠海马CA1区及齿状回突触素、PV,CaBP积分光密度及面积密度均显著低于对照组,补充苯甲酸雌二醇35 d,这3项指标的积分光密度及面积密度均告恢复,与OVX组相比,呈显著性差异.结论苯甲酸雌二醇可能通过调节海马、齿状回神经元突触密度,为改善学习记忆功能,缓解AD病人的症状提供结构基础,并通过维持胞内Ca2+的恒定达到保护神经元的目的.
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