内蒙古凤毛菊属药用植物资源调查

根据实地调查和分类鉴定研究,结合文献资料,报道了内蒙古凤毛菊属１６种、７变种药用植物及其分布、生境、贮藏量、药用价值,并编制了分种检索表。该研究有助于对本属植物的资源利用和深入研究 。     

显齿蛇葡萄化学成分的研究

从显齿蛇葡萄地上部分首次分得5个化合物。经理化常数测定,光谱(UV,IR,MS,1HNMR)分析,鉴定为福建茶素、龙涎香醇、β-谷甾醇、杨梅黄素和杨梅甙。     

基于生物效价和整合溶出度的六味五灵片体外溶出度研究

为了探讨化学-生物联合评价六味五灵片体外溶出度的可行性,该实验考察在0.1% SDS溶出介质中,不同溶出时间的六味五灵片溶出液对LX-2肝星状细胞的抑制作用,提出基于细胞抑制率所得六味五灵片的累积溶出度,与HPLC所测的五味子甲素、特女贞苷、连翘苷各指标成分的溶出度及自定义权重系数的多成分整合的溶出度运用f₂相似因子法分别进行相关性评价。结果显示,五味子甲素、连翘苷、特女贞苷各指标成分和整合溶出度与生物溶出度相比较,f₂相似因子依次为61,43,61,75,说明多成分整合的溶出度能更全面地反映全方的生物效价,以生物活性为导向的多成分整合的溶出度评价方法有望成为评价六味五灵片体外溶出度的有效手段之一。     

狼毒类生药原植物调查及分类鉴定研究

对目前全国各地所用狼毒的原植物进行了调查,发现共有3科12种(变种、变型),讨论了他们的分类鉴定特征并列出了检索表。     

超微舒胸胶囊对血瘀大鼠血液黏度及纤溶系统的影响

目的:研究舒胸胶囊微粉活血化瘀作用机理。方法:采用肾上腺素加冰浴的方法复制急性血瘀模型,观察舒胸胶囊微粉对大鼠血瘀模型全血黏度、血浆组织型纤溶酶原激活物(T-PA)及其抑制物(PAI)的变化,并与舒胸胶囊进行比较。结果:舒胸胶囊微粉能显著降低大鼠血瘀模型的全血黏度和血浆PAI含量,升高血浆T-PA含量;舒胸胶囊微粉低剂量组与舒胸胶囊高剂量组相比无显著性差异,高剂量组疗效明显优于舒胸胶囊高剂量组。结论:舒胸胶囊微粉具有明显的活血化瘀作用,其作用机制可能与改善血液流变性和纤溶系统活性有关。     

Preparation of different morphology Cu/GO nanocomposites and their catalytic performance for thermal decomposition of ammonium perchlorate

Cu nanoparticles are more active catalytically than CuO nanoparticles, which have been widely studied as catalysts for organic synthesis, electrochemistry, and optics. However, Cu nanoparticles are easily agglomerated and oxidized in air. In this research, columnar, flower-like, bubble-like and teardrop-shaped Cu/GO nanocomposites were fabricated via a water-solvent thermal method and high temperature calcination technique using deionized water (H₂O), methanol (CH₃OH), ethanol (CH₃CH₂OH) and ethylene glycol (EG) as the solvent, respectively. The structures, the morphology and the catalytic performance and catalytic mechanism for thermal decomposition of ammonium perchlorate (AP) of the Cu/GO nanocomposites have been studied by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), nitrogen adsorption tests (BET), simultaneous thermogravimetry-differential scanning calorimetry (TGA/DSC) and thermogravimetric couplet with Fourier transform infrared spectroscopy (TGA–FTIR), respectively. The experimental results show that the morphology of the Cu/GO nanocomposites has a significant effect on the surface area and the teardrop-shaped Cu/GO nanocomposites have the largest specific surface area and the best catalytic performance among them. When 5 wt% of the Cu/GO nanocomposites was added, the decomposition temperature of AP decreased from 426.3 °C to 345.5 °C and the exothermic heat released from the decomposition of AP increased from 410.4 J g⁻¹ to 4159.4 J g⁻¹. In addition, the four morphological Cu/GO nanocomposites exhibited good stability, their catalytic performance for thermal decomposition of AP remained stable after 1 month in air. Excellent catalytic performance and stability were attributed to the strong catalytic activity of pure metal nanoparticles, and GO can accelerate electron movement and inhibit the agglomeration of nanoparticles, as well as the multiple effects of inhibiting the oxidation of Cu nanoparticles in air. Therefore, it has important application potential in high-energy solid propellant.

Cu nanoparticles are more active catalytically than CuO nanoparticles, which have been widely studied as catalysts for organic synthesis, electrochemistry, and optics.     

蒙医血热证动物模型的建立及实验研究

目的：用纯蒙药研制蒙医血热证的动物模型。方法：根据文献记载,采用热性蒙药诱发蒙医血热证。具体利用蒙药材干姜,胡椒,荜茇以1：1：1比例制备水煎剂,浓度为12.5g%ml灌胃给药。选用家兔、wistar大鼠两种动物。各动物随机分二组,即对照组,模型组。对照观察两种动物的一般状况,血液流变性、血常规指标。结果：造模组的全血粘稠度,血浆粘度,红细胞压积、血红蛋白浓度和血红蛋白等指标与对照组相比有明显差异（p〈0.05）。结论：此造模法能使血液的上述指标发生显著变化的同时各种属动物身上发生的症状和表现很接近于蒙医临床血热证的症状和体征,符合诊断蒙医血热证标准。     

EXPERIMENTAL SPINAL CORD TRAUMATIC INJURY OF THE CAT TREATED WITH ELECTRO-ACUPUNCTURE

44 cats were used in this experiment. The spinal cords of 40 animals were injuredat about L_1 level by using Allen's method (400g/cm) and randomly divided into 2 groups: A)electro-acupuncture treatment group (n=20) and B) control group(n=20). 2 weeks after spinalcord injury, 80% of animals in the treatment group were survival and 45% of animals in the con-trol group were survival. There was significant difference between these two groups (p<0. 05).The motor evoked potential was recorded two weeks after spinal cord injury. The latency of theshort latency peak was 15. 61±4. 98 mS and the amplitude was 10. 61 0. 59 mV in the treatmentgroup; and 21. 7±5. 02 mS and 0. 56±0. 32 mV in the control group. Both latency and amplitudewere significant different between the two groups (P<0. 05, P<0. 05). The Anti-NF-H (neuro-filament) was determined at 2 and 4 weeks respectively after spinal cord injury. The more NF-Hpositive labeling fibers were found in the treatment group than in the control group (P<0. 01 ).The     

Caco-2细胞模型考察不同转运蛋白对瑞香素口服吸收的影响

目的:研究在Caco-2细胞模型中不同转运蛋白对瑞香素吸收的影响。方法:采用Caco-2细胞单层模型研究转运蛋白对瑞香素的吸收影响。采用HPLC法检测药物浓度,计算其表观渗透系数,考察不同转运蛋白抑制剂对瑞香素吸收的影响。结果:在10μg/ml的瑞香素溶液中加入P-gp抑制剂维拉帕米50μmol后,瑞香素PBA/PAB均无显著性差异(P>0.05);加入MRP2抑制剂环孢素10μmol后,PBA/PAB降低了10%;加入BCRP抑制剂潘生丁25μmol后,PBA/PAB降低了29%。结论:在瑞香素的跨膜转运的过程中不存在肠道转运蛋白P-gp的作用,但可能存在MRP2、BCRP的外排。     

血府逐瘀液对血小板与内皮细胞功能的影响

目的：研究血府逐瘀液对血以与内皮细胞功能的影响。方法；将不同浓度血府逐瘀液与血 矣体外培养人脐带内皮细胞共同作用，用放射免疫方法测定血小板膜表面ＧＰⅡｂ／Ⅲａ复合物和人脐静脉内皮细胞表面血栓调节蛋白（ＴＭ）分子数。结果：血府逐瘀液明显抑制二磷酸腺苷诱导的ＧＰⅡｂ／Ⅲａ复合物分子表达，对对照组比较有显著性差异，而血府逐瘀液对ＴＭ无明显影响。结论：血府逐瘀液阻断ＧＰⅡｂ／Ⅲａ复合物的暴露，可抑制ＡＤＰ