Erk信号传导通路调控乙醛刺激的肝星状细胞Ⅰ型胶原分泌及TGF-β1 mRNA的表达

目的:探讨细胞外信号调节激酶(Erk)信号传导通路调控乙醛刺激的肝星状细胞(HSCs)Ⅰ型胶原分泌及TGF-β1表达的影响.方法:用链霉蛋白酶和胶原酶原位灌流,Metrizamide密度梯度离心分离大鼠肝星状细胞,采用ELISA法定量测定PD98059阻断乙醛激活的肝星状细胞Erk活性后HSCs培养上清Ⅰ型胶原,RTPCR检测HSCs中TGF-β1mRNA.结果:PD98059在20μmol/L时可影响HSCsⅠ型胶原分泌及TGF-β1表达,但无统计学意义(P>0.05),50,100μmol/L抑制作用明显(P<0.05或P<0.01),呈剂量效应关系;TGF-β1表达与Ⅰ型胶原分泌呈正相关(r=0.93).结论:Erk信号传导通路是调控乙醛刺激的HSCsⅠ型胶原分泌及TGF-β1表达的重要通道,通过减少TGF-β1自分泌过程可能是PD98059抑制Ⅰ型胶原分泌的途径之一.     

医院绩效管理与平衡计分卡

伴国医药卫生体制改革的不断深入,社会的不断进步与发展,人民生活水平的不断提高,医疗机构面临着前所未有的机遇与挑战。为了能够更好地贯彻新医改精神,及时抓住新的历史机遇快速发展,全国各地的医院都在努力地探索适合自身发展的道路。随着全国学习贯彻科学发展观的推进,     

腹腔镜阑尾切除术治疗老年急性阑尾炎患者临床分析

中国已进入老龄化社会,老年急性阑尾炎发病率随着年龄的增大而逐年上升,老年性阑尾炎的发病率约2%~4%,占全部阑尾炎的3 %~4 %［1］。自 Semm［2］于 1983 年报道了首例腹腔镜阑尾切除术（laparoscopic appendectomy,LA）以来,LA 在世界各地广泛开展,随着腹腔镜设备的不断完善及手术者经验的积累,老年患者急性阑尾炎已不再是LA禁忌证,已越来越多地用于急性阑尾炎的治疗,作者自2009年1月至2013年3通过回顾性分析本院62例老年急性阑尾炎患者的临床资料,探讨腹腔镜治疗老年急性阑尾炎的临床效果,报告如下。     

不同化学染色法对日本血吸虫虫卵染色的效果分析

目的探索不同化学染色法对日本血吸虫虫卵染色的效果,以期获得在镜检下可分辨虫卵和粪渣的染色方法,为粪检血吸虫虫卵的计算机自动化识别奠定基础。方法用AO-EB、罗丹明、中性红、酸性品红、甲苯胺兰、台盼蓝、考马斯亮蓝和孔雀绿等化学染料,选择3个不同浓度和2个不同温度条件,分别对含日本血吸虫虫卵粪液进行染色、涂片镜检,用虫卵和粪渣反差程度作为主要评价指标,比较各种方法的染色效果。结果在8种化学染色方法中,以AO-EB染色和中性红染色的虫卵与粪渣其反差最大,镜下粪涂片中虫卵易于辨认,AO-EB法和中性红法的检出率分别为67.5%和65.0%,明显高于改良加藤法的检出率(40.0%)。结论AO-EB法和中性红染色法有助于提高粪检血吸虫虫卵检出率。     

肝细胞生长因子与肝再生增强因子重组表达质粒对大鼠肝纤维化的影响

Objective To evaluate the therapeutic effects of recombinant expression plasmid containing hepatocyte growth factor (HGF) and augmenter of liver regeneration (ALR) on rats with hepatic fibrosis. Methods Ninety Sprague-Dawley rats, which had been established into hepatic fibrosis models, were equally divided into 6 groups: blank group, pcDNA3.1 therapy group,pcDNA3.1-HGF therapy group, pcDNA3. 1-ALR therapy group, pcDNA3.1-HGF and pcDNA3. 1-ALR combined therapy group, and pcDNA3. 1-HGF-ALR therapy group. Zero point one μmol of blank or plasmid was injected into model rats in each group by tail vein once a day for 3 days. Model rats in blank group didn't receive any treatment. Additional 10 rats were chosen as control group, which were not given any interference during the experiment. All rats were sacrificed 4 days after end of treatment. Liver tissues were reserved for observing pathologic changes after HE staining and detecting proliferating cell nuclear antigen (PCNA) and c-jun by immunohistochemistry. Measurement data were compared by single-factor analysis of variance. Comparison between groups was done by SNK test. Enumeration data were analyzed by Fisher's exact test. Results In blank group and pcDNA3.1 therapy group, hyperplasia of fibrous connective tissue was very obvious, false lobules were formed. There was no significant difference between these two groups (x2 =0. 317,P= 1. 000).In the 4 remaining groups, hepatic fibrosis all achieved different degree of amelioration, and the therapeutic effect of pcDNA3.1-HGF-ALR was optimal. In control group, the expressions of PCNA and c-jun in liver tissues were low, with absorbance value of 8.6±1.9 and 3.2 ± 1.2, respectively. In blank group and pcDNA3. 1 therapy group, the expressions of PCNA and c-jun were obviously increased, with absorbance value of 24. 1±3.0, 24.5±4.3 and 23.8±3.1, 24.9±4.2, respectively,which were significant different from control group (all P＜0.01). In the 4 remaining groups, the expressions of PCNA were all obviously increased, and expressions of c-jun were all obviously decreased. The maximum change scope was observed in pcDNA3. 1-HGF-ALR therapy group.Conclusions The recombinant expression plasmid pcDNA3. 1-HGF-ALR can effectively ameliorate experimental hepatic fibrosis of rats. The anti-fibrosis effects are achieved probably by up-regulating PCNA expression and down-regulating c-jun expression.     

Narcotrend~脑电监测系统用于癫痫患者麻醉深度评价的临床研究

目的观察Naroctrend(脑电监测在癫痫患者麻醉诱导期的使用价值,比较癫痫与非癫痫患者对丙泊酚的敏感性。方法癫痫组(E组)为19例长期服用抗癫痫药物择期行颞叶切除术的癫痫患者,非癫痫组(NE组)为24例择期行开颅手术的非癫痫患者,麻醉诱导采用靶控输注丙泊酚,用警觉/镇静评分标准(OAA/S)评估诱导期间患者的意识变化,记录并比较意识消失、气管插管和切皮等不同时间点的Narcotrend脑电指数(NTI)、血压(BP)、心率(HR)及丙泊酚效应室靶浓度(Ce)。结果在意识消失阶段(OAA/S评分=1、2),E组患者的Ce值比NE组小(P<0.05)。随着OAA/S评分的降低,E组的Ce值上升幅度较缓,但其NTI却表现出比NE组更快的下降速度。两组患者的Ce、NTI与OAA/S评分均显著相关(P<0.01)。麻醉诱导期,随着Ce的增加,两组患者NTI、BP和HR均有显著降低(P<0.05),但两组之间NTI未见明显差异。结论癫痫患者在麻醉诱导阶段对丙泊酚的敏感性较高。Narcotrend(脑电监测系统可以用于癫痫患者诱导及维持阶段的麻醉深度监测。     

北京市药品监督管理局关于 撤消北京中惠制药厂头孢氨苄片批准文号的通告

根据2000年第三季度全国药品抽验结果，北京中惠制药厂生产的0.25g头孢氨苄片 为不合格药品。依据国家药品监督管理局国药管市[2000]468号文“关于查处2000年第三季度药品抽验中不合格药品的通知”精神，现决定将该品种的批准文号予 以撤消，撤消的批准文号为：京卫药准字(1996)第120001号；即日起停止该药的 生产 。 　　特此通告