经前期综合征肝气郁证模型大鼠不同脑区ERα、ERβ的分布与表达
发布时间:2018-11-18 17:04
【摘要】:目的:检测经前期综合征(premenstrual syndrome,PMS)肝气郁证模型大鼠海马、下丘脑相关区域内ERα和ERβ蛋白分布、表达的变化,初步探讨PMS肝气郁证发病的中枢机制,并研究中药经前舒颗粒对该病证的干预作用。 方法:以旷场实验、宏观行为药理学、阴道涂片法筛选合适大鼠进入实验,采用束缚造模法复制PMS肝气郁证大鼠模型,以旷场实验结合宏观行为药理学评价模型,采用免疫组织化学技术ABC法检测正常对照组、PMS肝气郁模型组、模型给药组大鼠海马CA1、CA3、下丘脑腹内侧区(VMH)中ERα和ERβ的定位分布与积分光密度值(IOD),计算IOD(ERβ)/IOD(ERα). 结果:与正常组大鼠相比,模型组大鼠体重显著减轻(P0.01),旷场实验水平得分、垂直得分、旷场实验总分均显著减少(P0.01),大鼠表现出精神萎靡,眼神呆滞,对外界刺激不敏感的状态;而造模并给予经前舒颗粒的大鼠较模型组大鼠体重增长显著(P0.05),旷场实验三项得分均显著增加(P0.05或P0.01)。免疫组化结果显示,三组大鼠海马、下丘脑中ERα和ERβ的定位分布无显著性差异。与正常组大鼠相比,模型组大鼠海马CA1、CA3区锥体细胞出现形态变化,海马CA1、CA3、下丘脑VMH区ERα和ERβIOD显著升高(P0.05或P0.01),IOD(ERβ)/IOD(ERα)没有显著性差异。造模并给药的大鼠海马结构无异常;与模型组相比,海马CA1、CA3、下丘脑VMH区ERα和ERβIOD显著降低(P0.01),下丘脑VMH区IOD(ERβ)/IOD(ERα)显著下降(P0.05)。 结论:采用束缚造模法可以成功制备PMS肝气郁证大鼠模型,旷场实验结合宏观行为学可有效评价模型。大鼠海马CA1、CA3、下丘脑VMH区ERα、ERβ蛋白表达升高可能与PMS肝气郁证关系密切,可能是PMS肝气郁证发病的中枢机制之一;中药经前舒颗粒可以有效纠正模型大鼠上述脑区ERα、ERβ蛋白表达异常升高的状态,同时下调下丘脑VMH区ERβ/ERα,可能是该药治疗PMS肝气郁证的机制之一。
[Abstract]:Objective: to investigate the distribution and expression of ER 伪 and ER 尾 protein in hippocampus and hypothalamus of rats with liver qi depression syndrome (premenstrual syndrome,PMS), and to explore the central mechanism of PMS liver qi depression syndrome. And to study the intervention effect of Jingqianshu granule on the syndrome of the disease. Methods: open field experiment, macroscopic behavior pharmacology and vaginal smear were used to screen suitable rats to enter the experiment. The rat model of PMS liver qi depression was established by binding method. The open field experiment combined with macroscopic behavior pharmacological evaluation model was used. Localization and distribution of ER 伪 and ER 尾 in (VMH) of hypothalamic ventromedial area of hippocampus CA1,CA3, in rats of normal control group, PMS liver qi depression model group and model group by immunohistochemical technique ABC method and integrated optical density (IOD),) IOD (ER 尾 / IOD (ER 伪). Results: compared with the normal group, the rats in the model group were significantly reduced in body weight (P0.01), open field test level score, vertical score and total open field test score (P0.01). The state of being insensitive to external stimuli; Compared with the model group, the weight of the rats in the model group increased significantly (P0.05), and the scores of the three items in the open field test were significantly increased (P0.05 or P0.01). Immunohistochemical results showed that the localization of ER 伪 and ER 尾 in hippocampus and hypothalamus of the three groups had no significant difference. Compared with the normal group, the hippocampal CA1,CA3 pyramidal cells in the model group showed morphological changes, but ER 伪 and ER 尾 IOD in the VMH area of the hypothalamus of hippocampus CA1,CA3, were significantly increased (P0.05 or P0.01), IOD (ER 尾 / IOD (ER 伪). Compared with the model group, the ER 伪 and ER 尾 IOD in the hypothalamic VMH area of hippocampus CA1,CA3, decreased significantly (P0.01), and IOD (ER 尾 / IOD (ER 伪 in the VMH area of the hypothalamus decreased significantly (P0.05). Conclusion: the rat model of PMS liver qi depression can be successfully established by using the method of restraint. Open field experiment combined with macroscopical behavior can effectively evaluate the model. The increased expression of ER 伪 and ER 尾 in the hypothalamus of CA1,CA3, may be closely related to the stagnation of liver qi of PMS, and may be one of the central mechanisms of PMS syndrome of liver qi depression. Jingqianshu granule can effectively correct the abnormal increase of ER 伪 and ER 尾 protein expression in the above-mentioned brain regions of the model rats, and down-regulate ER 尾 / ER 伪 in the hypothalamic VMH area, which may be one of the mechanisms of the treatment of PMS liver qi stagnation syndrome.
【学位授予单位】:山东中医药大学
【学位级别】:硕士
【学位授予年份】:2010
【分类号】:R-332
本文编号:2340609
[Abstract]:Objective: to investigate the distribution and expression of ER 伪 and ER 尾 protein in hippocampus and hypothalamus of rats with liver qi depression syndrome (premenstrual syndrome,PMS), and to explore the central mechanism of PMS liver qi depression syndrome. And to study the intervention effect of Jingqianshu granule on the syndrome of the disease. Methods: open field experiment, macroscopic behavior pharmacology and vaginal smear were used to screen suitable rats to enter the experiment. The rat model of PMS liver qi depression was established by binding method. The open field experiment combined with macroscopic behavior pharmacological evaluation model was used. Localization and distribution of ER 伪 and ER 尾 in (VMH) of hypothalamic ventromedial area of hippocampus CA1,CA3, in rats of normal control group, PMS liver qi depression model group and model group by immunohistochemical technique ABC method and integrated optical density (IOD),) IOD (ER 尾 / IOD (ER 伪). Results: compared with the normal group, the rats in the model group were significantly reduced in body weight (P0.01), open field test level score, vertical score and total open field test score (P0.01). The state of being insensitive to external stimuli; Compared with the model group, the weight of the rats in the model group increased significantly (P0.05), and the scores of the three items in the open field test were significantly increased (P0.05 or P0.01). Immunohistochemical results showed that the localization of ER 伪 and ER 尾 in hippocampus and hypothalamus of the three groups had no significant difference. Compared with the normal group, the hippocampal CA1,CA3 pyramidal cells in the model group showed morphological changes, but ER 伪 and ER 尾 IOD in the VMH area of the hypothalamus of hippocampus CA1,CA3, were significantly increased (P0.05 or P0.01), IOD (ER 尾 / IOD (ER 伪). Compared with the model group, the ER 伪 and ER 尾 IOD in the hypothalamic VMH area of hippocampus CA1,CA3, decreased significantly (P0.01), and IOD (ER 尾 / IOD (ER 伪 in the VMH area of the hypothalamus decreased significantly (P0.05). Conclusion: the rat model of PMS liver qi depression can be successfully established by using the method of restraint. Open field experiment combined with macroscopical behavior can effectively evaluate the model. The increased expression of ER 伪 and ER 尾 in the hypothalamus of CA1,CA3, may be closely related to the stagnation of liver qi of PMS, and may be one of the central mechanisms of PMS syndrome of liver qi depression. Jingqianshu granule can effectively correct the abnormal increase of ER 伪 and ER 尾 protein expression in the above-mentioned brain regions of the model rats, and down-regulate ER 尾 / ER 伪 in the hypothalamic VMH area, which may be one of the mechanisms of the treatment of PMS liver qi stagnation syndrome.
【学位授予单位】:山东中医药大学
【学位级别】:硕士
【学位授予年份】:2010
【分类号】:R-332
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