泻心汤及其拆方抗内毒素作用研究

目的∶研究泻心汤及其各拆方的抗内毒素活性。方法:采用试管凝胶法和动态浊度法分别测定泻心汤及其拆方和含药血清体外抗内毒素活性;采用内毒素发热大鼠模型观察体内抗内毒素作用强度。结果:单味药中大黄的抗内毒素活性最强,药对中大黄-黄芩的活性最强,二者的活性均优于泻心汤全方。结论:泻心汤组方中发挥抗内毒素作用的关键药味是大黄,其次是黄芩,大黄-黄芩为泻心汤抗内毒素有效药对。     

柴胡止血液对家兔置Cu-IUD的药理作用研究

IUD 作为异物置人宫腔,造成子宫内膜机械性损坏而致出血。通过对置含铜宫内节育器(IUD)动物模型的影响,以探讨柴胡止血液治疗IUD所致子宫异常出血的作用及其机理。 实验结果显示,置IUD后家兔宫腔液中PGF1α含量明显增高,而TXB2含量明显降低,PGF1α/TXB2 比     

蚯蚓提取物治疗肾病综合征高凝状态的研究

目的：研究蚯蚓提取物对肾病综合征高凝状态的疗效。方法：对３６例肾病综合征患者给予口服蚯蚓提取物的治疗,观察其凝血与抗凝及血流变学变化。结果：抗凝血酶Ⅲ活性明显上升;白陶土部分凝血活酶时间、血浆凝血酶原时间、凝血酶时间均明显延长;纤维蛋白／纤维蛋白和解产物明显上升,纤维蛋白原明显下降;血液流变学中,全血粘度比,全血还原粘度、血浆粘度、体外血栓长度、湿重、干重均明显改善。从而提示：蚯蚓提取物具有明显的     

附子抗心律失常有效组分研究

附子正丁醇提取物、乙醇提取物及水提物均对氯仿所致小鼠室颤有预防作用。其中尤以水提物作用最为明显。     

Oxygen Glucose Deprivation Post-conditioning Protects Cortical Neurons against Oxygen-glucose Deprivation Injury: Role of HSP70 and Inhibition of Apoptosis简

In the present study, we examined the effect of oxygen glucose deprivation（OGD） post-conditioning（PostC） on neural cell apoptosis in OGD-PostC model and the protective effect on primary cortical neurons against OGD injury in vitro. Four-h OGD was induced by OGD by using a specialized and humidified chamber. To initiate OGD, culture medium was replaced with de-oxygenated and glucose-free extracellular solution-Locke＇s medium. After OGD treatment for 4 h, cells were then allowed to recover for 6 h or 20 h. Then lactate dehydrogenase（LDH） release assay, Western blotting and flow cytometry were used to detect cell death, protein levels and apoptotic cells, respectively. For the PostC treatment, three cycles of 15-min OGD, followed by 15 min normal cultivation, were applied immediately after injurious 4-h OGD. Cells were then allowed to recover for 6 h or 20 h, and cell death was assessed by LDH release assay. Apoptotic cells were flow cytometrically evaluated after 4-h OGD, followed by re-oxygenation for 20 h（O4/R20）. In addition, Western blotting was used to examine the expression of heat-shock protein 70（HSP70）, Bcl-2 and Bax. The ratio of Bcl-2 expression was（0.44±0.08）% and（0.76±0.10）%, and that of Bax expression was（0.51±0.05）% and（0.39±0.04）%, and that of HSP70 was（0.42±0.031）% and（0.72±0.045）% respectively in OGD group and PostC group. After O4/R6, the rate of neuron death in PostC group and OGD groups was（28.96±3.03）% and（37.02±4.47）%, respectively. Therefore, the PostC treatment could up-regulate the expression of HSP70 and Bcl-2, but down-regulate Bax expression. As compared with OGD group, OGD-induced neuron death and apoptosis were significantly decreased in PostC group（P0.05）. These findings suggest that PostC inhibited OGD-induced neuron death. This neuro-protective effect is likely achieved by anti-apoptotic mechanisms and is associated with over-expression of HSP70.     

巴马汀对LPS诱导的RAW264．7巨噬细胞NO分泌及iNOS表达的影响

目的：观察巴马汀对脂多糖（LPS）诱导的RAW264．7小鼠巨噬细胞一氧化氮（NO）的分泌及诱导型一氧化氮合酶（iNOS）表达的作用。方法：采用LPS诱导RAW264．7巨噬细胞建立细胞炎症反应模型,加入不同浓度的巴马汀,采用Griess法测定NO的分泌量;采用Westernblot法检测iNOS蛋白的表达。结果：巴马汀能明显抑制LPS诱导的RAW264．7巨噬细胞NO的分泌,以及iNOS蛋白的表达,并呈现出浓度依赖性。结论：巴马汀可通过抑制LPS诱导的RAW264．7巨噬细胞NO的分泌及iNOS的表达,从而发挥抗炎作用。     

柴胡止血液对置含铜节育器大鼠子宫组织基质金属蛋白酶-9和金属蛋白酶组织抑制物-1及内皮素和一氧化氮的影响

目的:研究柴胡止血液治疗宫内节育器所致子宫出血副反应的作用机制。方法:观察柴胡止血液对置含铜节育器(Cu-IUD)大鼠子宫局部组织基质金属蛋白酶-9(MMPs-9)和金属蛋白酶组织抑制物-1(TIMP-1)表达、内皮素(ET)和一氧化氮(NO)活性的影响。结果:柴胡止血液能降低置Cu-IUD大鼠子宫局部组织MMPs-9的表达,增加TIMP-1的表达;降低ET的活性,增强NO的活性。结论:柴胡止血液可通过调节MMPs-9/TIMP-1、ET/NO的平衡,从而调节置IUD子宫内膜血管舒缩功能,促进置器子宫内膜组织的修复,起到治疗IUD所致子宫出血副反应的效果。     

淫羊藿复合脂质体对正常及“阳虚”小鼠的免疫调节作用

本文观察了宝兴淫羊藿复合脂质体对正常及“阳虚”小鼠免疫功能的影响，结果淫羊藿复合脂质体可显著对抗模型动物体重，脾重的降低；提高两种动物的ＲＢＣ－Ｃ３ｂ受体花环率和ＲＢＣ－ＩＣ环率及改善其调节因子的活性，增强Ｔ淋巴细胞的免疫活性。     

~(45)Ca同位素技术用于灯盏细辛中抗钙活性有效组分的研究

灯盏细辛(Erigeron breviscapus(Vant.)Hand-Mazz),主要含以野黄芩苷为主的黄酮、吡喃酮、酚酸类等化合物.具有散寒解表,活血舒筋,止痛消积等功效,用于治疗血栓性及心脑血管疾病等[1].越来越多研究报道灯盏细辛具青光眼视神经保护作用[2,3].最近研究表明,钙通道阻滞剂能与细胞膜钙通道结合,减少钙离子内流,扩张血管,从而改善视盘血供,阻断视网膜神经节细胞凋亡,起到视神经保护作用,在青光眼的治疗方面具广阔的应用前景[4,5].另据报道灯盏花素能抑制NA引起的兔胸主动脉内Ca2 浓度升高[6].基于此,本研究采用45Ca同位素示踪技术[7],观察了灯盏细辛中4种组分对大鼠胸主动脉电压依赖性钙通道(VDC)Ca2 内流的影响,以探讨其钙拮抗活性.