氯霉素乙酰转移酶检测(CAT assay)

本文介绍一种快速方便的外源基因在哺乳动物细胞中瞬间表达检测系统,即氯霉索乙酰转移酶检测系统。该项检测技术不仅对基因的调控顺序(Cis-acting elements)如启动子、增强子等检测提供了有效的工具,而且为真核基因在哺乳动物细胞表达体系中,质粒的构建及筛选提供了行之有效的手段。并介绍了该技术的全过程及其操作要点。     

应用磁共振波谱研究针刺对健康人前额叶神经递质影响的性别差异

目的 采用磁共振波谱MEGA-PRESS序列,观察针刺合谷穴对不同性别健康人前额叶内神经递质谷氨酸(glutamate, Glu)、谷氨酰胺(glutamine, Glx)及r-氨基丁酸(γ-aminobutyric acid, GABA)浓度变化的影响。方法 分别采集76例健康受试者刺激前及刺激(手针和纤毛针)合谷穴时磁共振波谱(MRS)数据,采用t检验及Pearson统计,分析刺激前后Glu﹢、Glx﹢和GABA﹢浓度变化的性别差异及相关性。结果 手针刺激前男性Glu﹢浓度明显高于女性(P<0.05),手针刺激时男性Glu﹢和Glx﹢浓度均明显高于女性(P<0.05);纤毛针刺激前男性Glx﹢浓度明显高于女性(P<0.05),纤毛针刺激时男性Glu﹢和Glx﹢浓度均明显高于女性(P<0.05);但手针和纤毛针刺激前和刺激时男性GABA﹢浓度与女性比较,差异无统计学意义(P>0.05)。手针刺激前和刺激时,性别与Glu﹢及Glx﹢浓度均呈正相关(P<0.05);纤毛针刺激前和刺激时,男性与Glu﹢及Glx﹢浓度呈正相关(P<0.05);手针和...     

诱导表达人活性型颗粒酶B的Hela细胞系的建立

目的 :构建人颗粒酶B基因的可诱导表达载体 ,并将其在Hela细胞中诱导表达 .方法 :用PCR法获取人活性型颗粒酶B基因序列 ,克隆入pIND诱导表达载体中。将其与辅助质粒pVgRXR通过脂质体法共转染Hela细胞后 ,用G4 18和zeocin筛选建系。通过免疫细胞化学染色法 ,确定蜕皮激素A最佳的诱导浓度及诱导时间 ,并通过MTT比色法检测及细胞骨架染色等方法观察 ,表达的活性型颗粒酶B对Hela细胞形态和生长的影响。结果 :获得可诱导表达人活性型颗粒酶B基因的Hela细胞系。免疫细胞化学染色表明 ,30 μmol/L蜕皮激素诱导 5d时目的蛋白表达最强 ,同时观察到Hela细胞的形态发生变化 ,出现多核大细胞及固缩小细胞 ,并且细胞生长受到抑制。骨架分析进一步显示 ,多核大细胞的骨架发生异常。结论 :活性型颗粒酶B的可诱导表达系统的建立 ,为进一步研究颗粒酶B的生物学效应功能奠定了基础     

辨证治疗单纯血尿性IgA肾病87例

目的：探索单纯血尿性IgA肾病的中医辨证施治规律。方法：对87例单纯血尿性IgA肾病患者进行中医辨证，分为湿热证、气阴两虚证、瘀血证3种证型，无证可辨者亦归于瘀血证，并分别以以清热利湿、滋阴凉血益气、活血祛痰法治疗。结果：87例单纯血尿性IgA肾病患者中，湿热证者最多，湿热证总有效率为97．05％；气阴两虚证者次之，总有效率为96．15％；瘀血证者又次之，总有效率为66．66％。无证可辨者最少。结论：中医药辨证治疗对单纯血尿性IgA肾病有一定疗效。     

中医辨证治疗非感染性尿道综合征

中医辨证治疗非感染性尿道综合征福建省人民医院（３５０００４）郑京陈志英＊洪红淮詹萍王智阮诗玮非感染性尿道综合征是指临床上确切地排除了细菌（含结核杆菌等）、真菌、衣原体等微生物所致的尿道综合征，临床上易误诊为泌尿系感染。我们采用中医辨证分型的方法治疗该...     

新型农村合作医疗制度的实践及体会

铜陵县作为安徽省首批10个试点县之一，启动并实施了以大病住院补助为主的新型农村合作医疗制度。     

泪道内镜下治疗泪道阻塞性疾病的初步观察

Objective To evaluate the therapeutic efficacy of lacrimal endoscope treatment for lacrimal passage obstruction, and to compare the effectiveness of endoscopically controlled laser surgery and micro-drill surgery for lacrimal passage obstruction. Methods It was a prospective random controlled trial. Eighty nine patients (104 eyes) with lacrimal passage obstruction, including presaccal canalicular obstruction (PSCO) and nasolacrimal duct obstruction (NLDO), were collected from September 2006 to December 2006 in Department of Ophthalmology, Union Hospital of Tongji Medical College, Huazhong University of Science and Technology. Patients were examined by endoscopy of the lacrimal drainage system under local anesthesia to detect the obstruction and changes of lacrimal mucous membrane. The obstructions were treated with laser or microdrill. Irrigation was performed to prove the recanalization of the lacrimal passage followed by injected ointment with 0.3% tobramycin and 0.1% dexamethasone into the lacrimal passage. All patients were followed up after the operation for 9-12 months. The difference between the laser and the microdrill treatment was observed. Chi-square test was used to evaluate the curative effect and complications differences between these two groups. Results The obstruction scene in the lacrimal passage of 89 patients could be observed effectively. All obstructions (104/104 eyes) were eliminated after the operation. Through the follow-up, the cure rate reached 78.85% (82/104 eyes). The cure rate of PSCO group and NLDO group, reached 77.78% (42/54 eyes) and 80.00% (40/50 eyes), respectively (χ2=0.077,P=0.782). The cure rate of laser group and micro-drill group, was 80.43% (37/46 eyes) and 77.59% (45/58 eyes), respectively (χ2=0.125,P=0.724). The cure rate of laser treatment was 89.66% (26/29 eyes) in the PSCO group and 64.71% (11/17 eyes) in the NLDO group (P=0.040). The cure rate of micro-drill treatment was 64.00% (16/25 eyes) in the PSCO group and 87.88% (29/33 eyes) in the NLDO group (χ2=4.664,P=0.031). Hemorrhage and palpebral edema occurred in 10.87% (5/46 eyes) and 4.35% (2/46 eyes) after laser treatment, respectively. Percentage of hemorrhage and palpebral edema after the micro-drill treatment was 55.17% (32/58 eyes) (compared to the laser group, χ2=21.969,P=0.000) and 6.90% (4/58 eyes) (compared to the laser group, χ2=0.017 ,P=0.896). Conclusions Lacrimal passage obstruction can be observed and treated directly through the endoscopy of lacrimal drainage system. Choosing an appropriate surgical procedure according to the locations of the obstruction can be helpful for improving the effectiveness of the operation.     

纤维连接蛋白在慢性肾小球肾炎中的临床应用

目的 探讨血清和尿液中纤维连接蛋白(Fibronectin,Fn)在慢性肾小球肾炎的发生和发展过程中起的作用.方法 用酶联免疫吸附法(ELASA)检测慢性肾小球肾炎患者与正常对照组血清与尿液中的纤维连接蛋白(Fn).结果 慢性肾小球肾炎患者血清中的Fn显著低于正常对照组(P＜0.01);尿液中的Fn明显高于正常对照组(P＜0.01).结论 在慢性肾小球肾炎的病情迁延进展过程中,一方面由于各种原因导致血浆Fn的消耗增多和合成减少,而另一方面血清Fn水平的降低又会加速慢性肾小球肾炎的病情的进展,尿Fn升高则可反映肾小球滤过膜的损伤程度.因此检测血、尿Fn的变化对于探讨慢性肾小球肾炎的病情进展具有重要作用.     

长托宁对小儿围术期心血管反应的影响

目的:比较长托宁与阿托品作为术前用药对小儿心血管反应的影响。方法:将30例颌面外科3~12岁患儿随机分为阿托品组(A组)和长托宁组(C组)。分别于术前30m in肌注阿托品0.02m g/kg,长托宁0.01m g/kg。全麻插管,记录术前用药前(T0)、术前用药后5m in(T1)、插管时(T2)、插管后(m in)T3、手术开始(T4)、手术开始10m in(T5)、手术开始20m in(T6)、手术结束拔管时(T7)8个时点的心率(HR),平均动脉压(M BP),呼吸频率(RR),动脉血氧饱和度(SaO2)值。结果:与T0比较,A组各时点HR显著增高(P<0.05),M BP有上升趋势,但无显著性差异(P>0.05);C组HR、M BP除插管时T2、拔管时T7较T0显著增高(P<0.05),其余各时点均无显著性差异(P>0.05);A组与C组HR、M BP相比各时点指标都有显著增高(P<0.05)。结论:长托宁具有一定的稳定心血管反应的作用。     

三叶型钢板内固定治疗胫骨远端骨折2O例分析

随着个体、集体煤矿的发展，矿山井下作业、井下顶板砸伤、铁镏拉伤增多，开放骨折增多，而胫骨远端骨折的处理比较困难，传统的保守跟骨牵引，创面换药，二期植皮及皮瓣转移，往往住院时间长，难以达到满意的效果，随着近几年骨科器械的更新发展，我科用三叶钢板治疗该类骨折20例，现报告如下。