郁怒诱发经前期综合征肝气郁证猕猴模型血清单胺类神经递质含量分析

目的：观察猕猴血清中单胺类神经递质含量的变化,探讨血清中单胺类神经递质在郁怒诱发经前期综合征（premenstrualsyndrome,PMS）肝气郁证猕猴模型中的作用。方法：以雌性实验猕猴为对象,分为正常组、郁怒情绪反应组、PMS肝气郁证模型组和治疗组。应用社会等级压力应激法诱导猕猴出现“怒”的情绪反应,然后筛选出郁怒情绪反应猕猴进行择时挤压造模,制备PMS肝气郁证猕猴模型。造模成功后,采用雌性实验猕猴情绪评价量表进行行为学评价,并于卵泡期或黄体中晚期采集猕猴血清,分析血清去甲肾上腺素、多巴胺、5-羟色胺含量。结果：与正常对照组相比,PMS肝气郁证模型组和郁怒情绪反应组猕猴的量表抑郁情绪积分显著高于对照组（P〈0．01,P〈0．05）,且造模组显著高于情绪反应组（P〈0．05）,用药后恢复正常;与正常对照组相比,PMS肝气郁证模型组和郁怒情绪反应组猕猴血清单胺类神经递质含量显著升高（P〈0．05,P〈0．01）,肝气郁证模型组也显著高于情绪反应组（P〈0．05）,用药后恢复正常。结论：郁怒情绪极易诱发PMS肝气郁证,其机制与单胺类神经递质改变有关。     

雄性大鼠不同侵略行为：社会隔离配合居住入侵的影响

Abstract Stress, especially chronic stress, is one of the most important factors responsible for precipitation of affective disorders in humans. The animal models commonly used in the research of stress effects are based mainly on powerful physical stressors. In the majority of cases, these models are not relevant to situations that human beings encounter in everyday life. In our study, an animal model for social stress has been developed for rats using a social isolation plus resident-intruder stress. This method is considered effective to make a model of aggressive behaviour, and therefore may mimic situations occurring in humans. Rats were subjected daily to social isolation and resident intruder stress for a period of two weeks, in parallel, tested with a battery of behavioural tests. Social stressed rats showed different aggressive behaviour styles that some rats had a higher score on composite aggression counts, locomotor activity and a lower score on latent Time than others. Aggressive bahaviour is commonly considered one of core symptoms of anger emotion. High aggressive group is more likely to be anger-out ones otherwise low aggressive groups more likely to be anger-in ones that described by Spielberger in details. So our findings suggest that the rat exposured to social isolation plus resident intruder may be an appropriate model for anger-in and anger-out emotion.     

经前期综合征肝气逆、郁两证大鼠模型血清及不同脑区单胺类神经递质含量分析

目的 借助前期研制成功PMS肝气逆、郁两证大鼠模型检测其血清与不同脑区单胺类神经递质含量,探索"肝失疏泄"微观机制并对模型与中医证型关系进行初步分析. 方法 挑出动情周期非接受期大鼠40只,随机分为5组:正常对照组、PMS肝气逆证造模组、PMS肝气郁证造模组、PMS肝气逆证造模给药组、PMS肝气郁证造模给药组,肝气逆证大鼠模型以情志刺激为主多因素复合造模法制备,肝气郁证大鼠模型以慢性束缚应激法制备,模型复制成功后肝气逆大鼠模型用经前平颗粒干预,肝气郁证大鼠模型用经前舒颗粒干预.HPLC测定血清及中枢NE、DA、5-HT含量,比较各组差异并进行分析. 结果 旷场实验中,相较正常对照组大鼠造模后逆模组水平得分、垂直得分及可旷场实验总分均显著增加(P<0.05),而郁模组大鼠则显著减少(P<0.05),用药后这一趋势得到明显纠正(P<0.05).肝气逆证模型大鼠不同脑区NE、DA、5-HT含量均有上升趋势;肝气郁证模型大鼠不同脑区DA含量呈下降趋势,5-HT含量显著上升.外周单胺类神经介质变化趋势多与中枢相反. 结论 肝疏泄太过所致烦躁易怒等表现可能与边缘叶DA水平上升,下丘脑DA、边缘叶5-HT水平下降密切相关;肝气疏泄不及呈现抑郁萎靡等症状可能与下丘脑NE水平上升,下丘脑、边缘叶DA水平下降,5-HT水平上升有密切关系.据此推测,肝主疏泄可能通过调节机体该类活性物质含量而呈现作用;其功能定位为脑中枢,尤其是下丘脑.     

经前平颗粒对经前期综合征肝气逆证模型大鼠不同脑区孕酮受体表达的影响

目的:研究经前平颗粒对经前期综合征(PMS)肝气逆证模型大鼠不同脑区(下丘脑、顶区皮质)孕酮受体(PR)表达的影响。方法:阴道涂片镜检法和旷场实验筛选合适大鼠,随机分为正常组、PMS肝气逆证模型组和肝气逆证造模给药组[经前平颗粒给药剂量10 g/(kg.d),给药5 d];电刺激法复制PMS肝气逆证模型,同时采用宏观行为学观察和旷场实验评价模型;采用免疫荧光标记结合激光流式细胞仪、激光共聚焦显微镜检测大鼠下丘脑和顶区皮质中PR的蛋白表达量及定位分布模式。结果:与对照组相比,PMS肝气逆证模型组大鼠旷场实验得分显著增加,下丘脑和顶区皮质中PR蛋白表达水平均有不同程度降低,阳性细胞少且趋向于边缘;与造模组比较,造模同时给予经前平颗粒干预组大鼠旷场实验得分显著下降,两脑区PR表达水平较模型组有不同程度上调,细胞分布模式趋于正常。结论:PMS肝气逆证发病与下丘脑和顶区皮质中PR密切相关,经前平颗粒能够显著上调两部位PR蛋白表达,这可能是其治疗PMS的机制之一。