Developmental changes of glutamate acid decarboxylase 67 in mouse brain after hypoxia ischemia

Objective To study the developmental changes of glutamic acid decarboxylase-67 (GAD-67, a GABA synthetic enzyme) in normal and hypoxic ischemic (HI) brain. Methods C57/BL6 mice on postnatal day (P) 5, 9, 21 and 60, corresponding developmentally to premature, term, juvenile and adult human brain were investigated by using both Western blot and immunohistochemistry methods either in normal condition or after hypoxic ischemic insult. Results The immunoreactivity of GAD67 was up regulated with brain development and significant difference was seen between mature (P21, P60) and immature (P5, P9) brain. GAD67 immunoreactivity decreased in the ipsilateral hemisphere in all the ages after hypoxia ischemia (HI) insult, but, significant decrease was only seen in the immature brain. Double labeling of GAD67 and cell death marker, TUNEL, in the cortex at 8h post-HI in the P9 mice showed that (15.6±7.0)% TUNEL positive cells were GAD67 positive which was higher than that of P60 mice. Conclusion These data suggest that GABAergic neurons in immature brain were more vulnerable to HI insult than that of mature brain.     

重组2型腺相关病毒-转化生长因子β3对实验性肝纤维化大鼠肝脏组织病理学和Ⅰ型胶原表达的影响

Objective To investgate the effects of TGF β 3 on rat hepatic fibrosis. Methods The TGF β 3 cDNA was cloned into rAAV2 vector. Rats were randomly divided into four groups: normal control group, model group, negative control group and TGF β 3 group. Hepatic fibrosis was induced by hypodermic injection of 40% CCI4. Recombinant AAV2-TGF β 3 viral particles were injected via the vena caudalis one week before CCh treatment. Rats were executed 8 weeks after CCI4 treatment, global histological change was observed after HE staining, the distribution of the collagen fibers was observed after masson staining, his-tochemistry was done to observe the expression of collagen Ⅰ; The positive area rate of the collagen fibers and the average optical rate of collagen Ⅰ were quantified. Results HE staining indicated that collagen fibers were reduced in the TGF β 3 group. Masson staining shown that the collagen fibers were distributed around the blood vessel, in the portal area and disse space. Compared to the model group (13.2%±2.2%) and negative control group (12.3%±1.5%), the collagen fibers in liver tissues of TGF β3 group (7.7% ± 1.5%) were significantly decreased (q = 9.456, P < 0.01; q = 8.217, P < 0.01). Histochemistry indicated that the collagen fibers of liver tissues of TGF 15 3 group (0.185±0.033) were significantly higher than those in the model group (0.252±0.042) and the negative control group (0.230±0.029), (q = 6.228, P < 0.01; q = 4.346, P < 0.01). Conclusion TGF β 3 alleviates the damage to hepatic cell and the level offibrosis in CCI4 treated rats and inhibits the expression of collagen Ⅰ.     

联合应用口服水剂和水灌肠肠道充盈法的MSCT研究

目的：评价口服水剂、水灌肠及两者联合应用充盈肠道后,使用MSCT显示成人正常肠道的能力。材料和方法：将43名非肠道病变志愿者分别采用口服水剂法(21例)、水灌肠法(12例)、双重法(口服水剂和水灌肠联合应用,10例)充盈肠道,然后行MSCT平扫和增强扫描并进行图像重建,对小肠和大肠各肠段充盈状态进行评价。结果：口服水剂法回肠充盈良好,水灌肠法大肠充盈良好,双重法回肠及大肠均充盈良好。口服水剂法小肠充盈优于水灌肠法,与双重法无显著差异,大肠充盈状态水灌肠法明显优于口服水剂法,与双重法无显著差异。结论：口服水剂和水灌肠联合应用可以在MSCT同时较好地充盈显示小肠和大肠,而两种方法单独使用则仅能分别充盈显示小肠和大肠,需要根据显示目的选择相应的充盈方法。     

人PD-L2基因克隆及其在大肠杆菌中的表达

目的 克隆人PD-L2基因并构建PD-L2胞外区的原核表达载体，在大肠杆菌中进行表达。方法 以RT-PCR方法从活化的人外周血单个核细胞总RNA中克隆PD-L2基因的cDNA，构建PD-L2胞外区的原核表达载体，在大肠杆菌BL21(ED3)中进行表达并鉴定。结果 克隆到PD-L2基因cDNA编码区全长序列，经DNA测序证明其与已报道的序列一致。进而构建了PD-L2胞外区的原核表达载体，并在大肠杆菌表达，免疫印迹分析表明在IPTG诱导后表达PD-L2胞外区蛋白，相对分子质量Mr为22000，与理论值大小相符。结论 成功克隆PD-L2基因，其胞外区蛋白在大肠杆菌中获得表达，为进一步研究PD-L2功能提供了条件。     

卡维地洛配伍螺内酯治疗老年难治性高血压的临床观察

目的：评价卡维地洛联合螺内酯对老年难治性高血压的临床疗效及安全性，以指导临床工作。方法：老年难治性高血压患者200例分成两组，观察组（120例）经安慰剂洗脱2周后口服卡维地洛配伍螺内酯治疗，对照组（80例）在原有用药基础上加用螺内酯，治疗后共观察8周，探讨疗效。结果：观察组不良反应发生少，且观察组总有效率明显高于对照组，观察组对改善左心室射血分数和左心室舒张末期内径效果明显。结论：卡维地洛联合螺内酯对老年难治性高血压控制较好，并能改善心室结构，临床应用效果好。     

肝硬化患者的心理状态分析

目的:分析肝硬化患者的心理状态.方法:对40 例肝硬化患者(研究组)及40 例健康志愿者(正常对照组)采用汉密尔顿焦虑量表(HAMA)和汉密尔顿抑郁量表(HAMD)进行问卷调查及对比研究.结果:肝硬化患者的焦虑发生率为27.5%,抑郁发生率为42.5%,焦虑合并抑郁的发生率为27.5%,与正常对照组相比,肝硬化患者的焦虑抑郁不良情绪的发生率升高(P＜0.05),其中家庭月收入少于1 000元、有并发症的肝硬化患者的抑郁积分较高(P＜0.01).结论:肝硬化患者的焦虑、抑郁情绪发生率显著高于正常人群,且受家庭经济状况和有无并发症的影响.     

南京市婚检的现状与对策

介绍了2002～2005年间南京市的婚检情况。新的《婚姻登记条例》实施后婚检人数急剧下降,未能通过婚检检出的一些疾病导致了妊娠合并症、新生儿缺陷和新生儿疾病发生数明显上升;提出当前开展婚前卫生保健工作有着积极的现实意义和深远的历史意义。南京市妇幼保健院为提高人口素质积极开展婚前卫生保健工作,并取得一定成效。     

内膜下血管成形术治疗下肢动脉硬化闭塞症的新进展

内膜下血管成形术是治疗下肢动脉硬化闭塞症的主要方法之一，本文详细叙述了近年来内膜下血管成形术的新发展，包括适应证的拓展，各项操作新技术的进展，在小腿动脉中的应用及并发症的正确处理。为今后此技术更加广泛地应用提供了思路。     

微格教学法在经外周静脉置入中心静脉导管维护模拟教学中的应用

s teaching was also significantly higher in the study group than in the control group(97.37% vs.64.71%,P＜0.05).Conclusion Micro-teaching can effectively improve the quality of clinical teaching.