子宫内膜腺癌P53蛋白与基因突变的研究

目的 研究ｐ＾５３基因突变对子宫内膜腺癌临床病理特点及转归的影响。方法 运用免疫组化染色和聚合酶联反应－单链构象多态性分析（ＰＣＲ－ＳＳＣＰ）,检测子宫内膜腺癌患者Ｐ５３的蛋白表达与基因突变。结果 子宫内膜腺癌患者Ｐ５３蛋白表达阳性率为３４．１５％,阳性者５年存活率明显低于阴性者（Ｐ＝０．０３７）,核过表达仅与组织分化相关,而与患者年龄、分期、浸肌程度、淋巴结转移、附件转移均无关（Ｐ〉０．０５）;     

基因芯片对PMA激活的血管内皮细胞早期反应基因的研究

目的 :用基因芯片研究 PMA激活的血管内皮细胞的早期反应基因 (imm ediate early response gene,ERG)。方法 :以包含 40 96条人类基因的 DNA芯片检测血管内皮细胞受代谢增强剂 PMA(phorbol myristate acetate)激活后早期的基因表达谱 ,并从中筛查出 ERG。结果 :血管内皮细胞受 PMA作用 6 h后 ,17条基因上调 ,11条下调。数据处理聚类分析表明 17条上调基因中多数 (13/ 17)属蛋白质磷酸酶和转录调控因子基因 ,而下调基因中多数 (9/ 11)为细胞分裂相关基因。结论 :证明PMA激活的人血管内皮细胞早期反应基因主要是转录调控因子和蛋白质磷酸酶基因。     

医院物资管理与计算机网络

本文通过对医院物资管理特点的分析,总结出适用于医院的"三级分层体系"物资管理模式及办法,并对本院应用该模式建立的物资管理系统的工作原理、实现细节及特点作了较详尽的论述.     

降纤酶治疗青年人短暂性脑缺血发作的临床研究

目的 探讨降纤酶对青年人短暂性脑缺血（ＴＩＡ）发作的治疗效果。方法 将７２例患者随机分为两组。治疗组３７例,给予降纤酶静滴至ＴＩＡ发作终止或治疗达１周;对照组３５例,给予阿司匹林、尼莫地平、低分子右旋糖酐、脉络宁治疗２周。两组于治疗前、后分别采静脉血检测血浆纤维蛋白原、红细胞压积、全血粘度和血浆粘度的变化。结果 总有效率治疗组为９１．６６％,对照组为７７．１４％,２组间有显著性差异（Ｐ〈０．０１）     

消抗安胎口服液慢性毒性作用的实验研究

目的 观察消抗安胎口服液长期,大剂量使用对大鼠的慢性毒性作用。方法 血液生化分析法。结果 实验大鼠的整体状态,肝功能,肾功能,血糖等血液生化指标的测定及主要敏感脏器重量与对照组相比均无显著性差异。结论ＣＸＬ安全,无毒副作用,临床应用可靠。     

茯苓多糖颗粒剂的研制及质量检测

以提取的茯苓多糖为主要原料,制成颗粒剂保健品,并拟定质检项目其进行定性、定量检测。工艺简单易行,具有较好的治疗、保健功效。     

综合医院确诊的39例肺结核患者转诊结果随访调查

目的;了解并评价综合医院内科确诊的活动性肺结核病例转诊结果。方法：对我院呼吸内科１９９５年８月－１９９８年８月确认的３９例活动性肺结核患者（不包括结核性胸膜炎）转往结构防治专业机构的结果进行信访和电话随访。结果：仍的３９例活动性肺结核患者中有３５例在确诊后１周内结核病接受０．５ａ－１ａ的全地化疗,３３例获得良好效果,２例死亡,死因分别为肺间质纤维化合并感染肺心病及呼吸衰竭。３例慢性纤维空洞型肺结核     

Optimal immobilization of penicillinase for lon-selective electrode

Penicillin sensor was prepared by immobilizing penicillinase (Pcase) on H⁺-selective carboxylated poly (vinyl chloride) (PVC-COOH) membrane or cellulose filter membrane. The immobilization techniques are as follows. Pcase was immobilized with GTH on H⁺-selective PVC-COOH membrane or some amount of BSA was dropped on that membrane. Another method to make immobilization is to mix type I Pcase with GTH and drop on a cellulose filter membrane. According to immobilization techniques, there were some differences in response properties of enzyme electrodes, however, all electrodes responded to Pcase-resistant penicillin derivatives. Pcase immobilized on cellulose filter membrane with H⁺-selective PVC membrane eletrode was more stable and more sensitive to penicillinase-resistant penicillin derivatives than any other immobilization techniques.     

Epimerization and Hydrolysis of Dalvastatin,a New Hydroxymethylglutaryl Coenzyme A (HMG-CoA) Reductase Inhibitor

In aqueous solutions, dalvastatin (1) undergoes epimerization as well as hydrolysis. The transformation of the drug was studied as a function of pH at 25°C in aqueous solutions containing 20% acetonitrile. At all pH values, first-order plots for the conversion are biphasic, indicating rapid equilibration of 1 with its epimer (2) and slower hydrolysis of 1 to the corresponding -hydroxy acid (3). Apparent first-order rate constants for the biexponential equation are given as a function of pH. The alkyl–oxygen cleavage of the lactone ring results in the epimerization of 1 to 2, whereas the acyl–oxygen cleavage results in the hydrolysis of 1 to 3. The epimerization is an S_N1 reaction reaching an equilibrium of [l] _eq/[2] _eq = 1.27. The epimerization rate is increased with an increase in the water content of the solvent. The hydrolysis of 1 to 3 is acid and base catalyzed. The hydrolysis is reversible in acidic media and irreversible in neutral and basic media. At pH values greater than 9, the hydrolysis reaction proceeds more rapidly than the epimerization.