脑梗死后神经细胞黏附分子的动态变化及滋补肝肾复方复健片的干预效应

[目的]观察复健片在不同时间点对脑梗死大鼠脑组织神经细胞黏附分子表达的影响,探讨其促进神经功能恢复的作用机制.[方法] 240只Wistar大鼠随机分为正常对照组、假手术组、模型组和药物组共4个大组,并根据脑梗死病程每组又分为3、7、14、28、42 d共5个亚组,每个亚组动物数为12只.用改良的Longa EZ法制备大脑中动脉阻塞大鼠模型,药物组灌胃给予复健片水溶液,余各组分别灌胃给予同剂量的蒸馏水.用免疫组织化学法观察模型大鼠梗死周边区脑组织神经细胞黏附分子的表达.[结果]模型组大鼠脑梗死后脑内的神经细胞黏附分子(NCAM)表达逐渐增高,在28 d时达到高峰,后逐渐下降,其与正常对照组各时相比较有非常显著性差异(P<0.01).药物组在3 d时出现高表达,14 d时其表达达到高峰,持续至28 d时开始下降,药物组的NCAM表达与模型组同时间点比较有非常显著性差异(P<0.01).[结论]复健片可增加NCAM的表达,有助于轴突生长和靶向迁移,促进神经功能恢复.     

HPLC测定甲亢散结片中芍药苷的含量

目的:建立测定甲亢散结片中芍药苷含量的方法.方法:采用HPLC,以Agaent Eclipse XDB-C18为分析柱(4.6mm×250mm,5μm),流动相为乙腈-水(20:80),检测波长230mm.结果:芍药苷在0.04～0.48μg线性关系良好(r=0.999 4),平均回收率为95.85%,RSD为1.32%(n=6).结论:本方法简便、快速、分离度好,可用于甲亢散结片的质量控制.     

Real-time Acoustic Elastic Property Monitoring of Compacts During Compaction

A nondestructive, real-time acoustic technique for determining elastic properties of compacts during compaction is presented. An acoustic time-of-flight study was conducted, and the extraction of the linear elastic properties of calcium carbonate compacts was demonstrated. To verify the results of the acoustic experiments, a uniaxial compaction investigation was also carried out using a computer-controlled press with an instrumented die. Good agreement between linear elastic properties determined using both acoustic experiments and compaction force-displacement data was observed. This technique has the potential to be used as a real-time compaction monitoring tool.     

RP-HPLC法测定金银花及金芪降糖片中的绿原酸

目的 建立同时测定金银花及金芪降糖片中绿原酸的反相高效液相色谱法。方法 色谱柱为Diamondsil C18（250 mm×4.6 mm，5 μm），以乙腈0.4%磷酸溶液（13∶87）为流动相，检测波长为327 nm，体积流量为1.0 mL/min。结果 在上述条件下测定金银花中绿原酸为2.49%，金芪降糖片中绿原酸为8.776 mg/片。结论 本方法操作简单、结果准确、回收率高、重现性好，可用于金银花及金芪降糖片的质量控制。     

新癀片外敷预防持续静脉推注5-Fu致静脉炎的临床研究

目的　寻找预防便携式弹性输液泵持续静脉推注 5 -Fu致静脉炎的有效方法。方法　随机将 15 0例用 5 -Fu化疗的病人分为 3组 ,各组 5 0例。对照组 :采用常规法 ,即输液前先静脉注射生理盐水 10ml+地塞米松 5mg ,以后冲管 1次 d(生理盐水 10ml静脉注射 ) ,每一疗程药物输注结束再续生理盐水 10 0ml冲管 ;实验组Ⅰ、Ⅱ :常规法加局部皮肤抹药 ,即将新癀片研成粉末加少许 75 %酒精调成糊状 ,沿静脉走向涂抹于输注部位上段皮肤 ,Ⅰ组涂抹长度为 5cm以上 ,Ⅱ组为 3～ 4cm ,每天涂药 :Ⅰ组 4次 ,Ⅱ组 3次 ,每疗程结束后继续皮肤抹药 1d。结果　Ⅰ组静脉炎发生例数为 0 ,Ⅱ组静脉炎发生例数为 2 (4 % ) ,对照组 5 0例均发生静脉炎 (10 0 % ) ;Ⅰ、Ⅱ组间比较无统计学意义 (P >0 .0 5 ) ,而Ⅰ、Ⅱ组与对照组比较有统计学意义 (P <0 .0 0 1)。结论　采用新癀片外敷预防持续静脉推注 5 -Fu所致的静脉炎效果可靠 ,且安全。     

不同剂量~(60)Co-γ射线辐照对三黄片中大黄粉含量及消毒效果的影响

为了解不同辐射剂量60Co-γ射线辐照灭菌对三黄片主要成分大黄素、大黄酚含量及消毒效果的影响,采用高效液相色谱法及细菌检验方法,对辐照处理的三黄片中大黄素、大黄酚和辐照消毒效果进行了检测。结果,三黄片经不同辐照剂量60Co-γ射线辐照前后,其主要成分大黄素、大黄酚的含量无明显的变化;辐照剂量为2 kGy的照度下即可以达到消毒要求。结论,三黄片用60Co-γ射线辐照消毒方法对其有效成分基本无影响,消毒效果可靠。     

Preparations based on minerals extracts of Calicotome villosa roots and bovine butyrate matter: Evaluation in vitro of their antibacterial and antifungal activities

Objective

The use of preparations based on minerals extracts of Calicotome villosa and butter is born from the misuse of drugs without specific microbiological analyzes. Seventeen different preparations were performed. The antibacterial and antifungal activities were determined on five bacteria and two fungi strains respectively.

流化床制粒制备甘芝口含片

目的：制备甘芝口含片。方法：采用流化床制粒,以颗粒流动性、含片崩解时限及外观性状为考察指标,通过正交试验优选最佳制粒工艺参数。结果：最佳工艺参数为A1B2C3D3,即进风温度为45～50℃、物料温度40～45℃,雾化压力0.8～1.0bar,料液流速5～7ml/min。结论：该制备工艺简单,方法可行,可应用于大生产。     

散结镇痛片对子宫内膜异位症模型大鼠妊娠功能和激素水平的影响

目的 观察散结镇痛片对子宫内膜异位症模型大鼠妊娠功能和雌激素水平的影响.方法 采用自体种植法制备大鼠子宫内膜异位症模型.手术后将大鼠分为假手术组,模型组,达那唑胶囊(0.070 g/kg)阳性对照组,散结镇痛片低、中、高剂量(0.216、0.432、0.864 g/kg)组及散结镇痛胶囊(0.864 g生药/kg)组,...     

Combining experimental design and orthogonal projections to latent structures to study the influence of microcrystalline cellulose properties on roll compaction

Roll compaction is gaining importance in pharmaceutical industry for the dry granulation of heat or moisture sensitive powder blends with poor flowing properties prior to tabletting. We studied the influence of microcrystalline cellulose (MCC) properties on the roll compaction process and the consecutive steps in tablet manufacturing. Four dissimilar MCC grades, selected by subjecting their physical characteristics to principal components analysis, and three speed ratios, i.e. the ratio of the feed screw speed and the roll speed of the roll compactor, were included in a full factorial design. Orthogonal projection to latent structures was then used to model the properties of the resulting roll compacted products (ribbons, granules and tablets) as a function of the physical MCC properties and the speed ratio. This modified version of partial least squares regression separates variation in the design correlated to the considered response from the variation orthogonal to that response. The contributions of the MCC properties and the speed ratio to the predictive and orthogonal components of the models were used to evaluate the effect of the design variation. The models indicated that several MCC properties, e.g. bulk density and compressibility, affected all granule and tablet properties, but only one studied ribbon property: porosity. After roll compaction, Ceolus KG 1000 resulted in tablets with obvious higher tensile strength and lower disintegration time compared to the other MCC grades. This study confirmed that the particle size increase caused by roll compaction is highly responsible for the tensile strength decrease of the tablets.