Differential regulation of ciliary neurotrophic factor and its receptor in the rat hippocampus following transient global ischemia

To investigate a potential role of ciliary neurotrophic factor (CNTF) in transient global ischemia, we have studied the postischemic regulatory changes in the expression of CNTF and its receptor, the ligand-binding alpha-subunit (CNTFRalpha). Immunoblot analysis demonstrated CNTF levels were slightly upregulated already during the first day after ischemia and then increased markedly by more than 10-fold until 2 weeks postischemia. Immunoreactivity for CNTF became detectable 1 day after ischemia and was localized in reactive astrocytes. The intensity of the immunolabeling was maximal in CA1 during the phase of neuronal cell death (days 3-7 postischemia) and in the deafferented inner molecular layer of the dentate gyrus. Upregulation of CNTF expression was less pronounced in CA3 and absent in the stratum lacunosum moleculare and the outer molecular layer of the dentate gyrus and thus did not simply correlate with astroliosis as represented by upregulation of glial fibrillary acidic protein (GFAP). As shown by in situ hybridization, expression of CNTFRalpha mRNA was restricted to neurons of the pyramidal cell and granule cell layers in control animals. Following ischemia, reactive astrocytes, identified by double labeling with antibodies to GFAP, transiently expressed CNTFRalpha mRNA with a maximum around postischemic day 3. This astrocytic response was most pronounced in CA1 and in the hilar part of CA3. These results show that CNTF and its receptor are differentially regulated in activated astrocytes of the postischemic hippocampus, indicating that they are involved in the regulation of astrocytic responses and the neuronal reorganizations occurring after an ischemic insult.     

微流芯片检测流感病毒多重逆转录聚合酶链反应产物的实验研究

[目的 ]　建立应用微流芯片检测甲 1型、甲 3型、乙型流感病毒多重逆转录聚合酶链反应 (mRT -PCR)产物的方法 ,在mRT -PCR扩增核酸的基础上自动化灵敏的定量检测扩增产物 ,快速检测甲亚型、乙型流感病毒 ,帮助临床快速诊断和鉴别诊断其他呼吸道病毒感染 ,以及明确流感病毒在人群中感染、流行情况。　 [方法 ]　采用经MDCK细胞分离培养的甲 1型、甲 3型、乙型流感病毒毒株病毒液 ,使用 3组特异引物经mRT -PCR扩增核酸 ,扩增产物分别采用毛细管电泳技术经Caliper10 0 0微流芯片分析仪自动化检测和经 2 %琼脂糖凝胶电泳法检测。　[结果 ]　设计三组引物对相应甲 1型、甲 3型、乙型流感病毒靶基因的mRT -PCR扩增产物片段分别为 43 0bp、2 10bp、3 91bp ,本实验mRT -PCR扩增产物经 2 %琼脂糖凝胶电泳 ,与Marker比照 ,DNA条带基本在此位点附近 ;产物采用毛细管电泳法经Caliper10 0 0微流芯片分析仪后 ,分别于 413bp、2 0 3bp、3 79bp处出现陡峭的峰 ,如图所示。　[结论 ]　应用微流芯片采用毛细管电泳法可对流感病毒mRT -PCR产物进行定位及相对定量 ,有助于快速诊断流感病毒感染 ,有助于对流感的监测。     

湖北麻城2000～2002年农村妇女自杀死亡流行病学分析

目的 分析农村妇女自杀死亡的流行病学特点及其自杀原因，为制定预防对策提供科学依据。方法 采用描述性流行病学方法分析湖北麻城2000年～2002年15a以上妇女自杀死亡病例249例，并与八年前该地区农村妇女自杀情况进行比较。结果 该地区农村妇女自杀年龄分布呈“马鞍”现象，人际冲突、患病自感难愈、经济困难为自杀的前三位原因。与丈夫冲突导致自杀的比例比八年前该地研究结果显著增高，且是20～39a组自杀死亡的首位原因；15～29a组自杀比例显著下降，而50～69a组自杀比例显著上升。结论 农村妇女自杀死亡是由多种因素造成的，应引起高度重视并制定有效的综合干预措施。     

外周微量血单细胞凝胶电泳技术的正交试验

目的研究外周微量血单细胞凝脉电泳技术的最佳实验条件.方法采用四因素三水平的正交表L9(34)对电泳电压、电泳时间、解旋时间、铺胶层数四因素作正交试验.结果解旋时间为最主要影响因素,其次分别为铺胶层数、电泳时间和电泳电压;并且各因素下的第一水平为最佳水平.结论外周微量血单细胞凝胶电泳技术的最佳实验条件为:解旋20min、铺胶3层、电泳20?min、电泳电压20V.     

激素替代治疗子宫内膜异位症根治术后42例疗效观察

目的:探讨应用激素替代治疗改善子宫内膜异位症根治术后围绝经期症状的疗效和安全性。方法:2002年1月~2004年12月因重度子宫内膜异位症行根治术出现围绝经期症状的患者42例,随机分成2组。观察组22例口服倍美力0.3 mg,1次/d,对照组20例口服利维爱1.25 mg,1次/d。治疗前后检测血清FSH(卵泡刺激素)和E2(雌二醇)水平,记录治疗期间盆腔痛、性交痛等子宫内膜异位症相关症状,Kupperm an(K评分)1次/月。结果:两组治疗后围绝经期症状均明显改善,血清E2水平上升,治疗前后比较差异有显著性意义(P<0.01),无内膜异位症复发表现。治疗后的E2水平观察组高于对照组,两组比较差异有显著性意义(P<0.01),但均在安全范围内。结论:小剂量倍美力和利维爱用于重度子宫内膜异位症根治术后患者,能有效地控制围绝经期症状,安全,无复发。     

耶鲁抽动症整体严重度量表对抽动障碍患儿的临床评估

目的引进耶鲁抽动症整体严重度量表(YGTSS)并评估其与临床症状轻重的关系，以及以量表积分在观察者间的一致性。 方法2001年7月至2002年6月成都市儿童医院全文翻译YGTSS，未予修改，观察72例抽动患儿YGTSS总积分与临床抽动症状严重度分型的关系和该量表积分进步率与治疗后症状改善程度的关系(临床效度检验)，观察24例患儿该量表运动和发声抽动数量、频度、强度、复杂性、干扰性5个维度积分及总积分在观察者间一致性。 结果抽动患儿该量表总积分与临床抽动症状严重度分型之间和该量表积分进步率与治疗后症状改善程度之间有较好的效度(F值分别为59.31和124.44，P均<0.01)，运动和发声抽动数量、频度、强度、复杂性、干扰性5个维度积分及总积分的组内相关系数(ICC)值均大于0.7，显示较好的观察者间一致性。 结论耶鲁抽动症整体严重度量表中译本具有较好的信度和效度，是衡量抽动症状严重程度的工具之一。     

试析He-Ne激光沿经络自动照射仪的应用

本文介绍He-Ne激光沿经络自动照射仪的结构、特点,分析了激光与组织相互作用的物理效应和生物效应,提出了该仪器在针灸临床中的应用。     

金莲花软胶囊中总黄酮的含量测定

目的建立紫外法测定金莲花软胶囊中总黄酮的含量测定方法。方法采用紫外分光光度计,检测波长500nm,以芦丁为标准品测定本品总黄酮含量。结果测得线性回归方程为y=0.11359x-0.0034,r=0.9999(n=5),平均回收率为99.67%,RSD为0.58%(n=9)。结论本方法简便,准确、重复性好。     

Pivotal study of iodine-131-labeled chimeric tumor necrosis treatment radioimmunotherapy in patients with advanced lung cancer.

PURPOSE: Tumor necrosis treatment (TNT) uses degenerating tumor cells and necrotic regions of tumors as targets for radioimmunotherapy. Previous studies in animal tumor models and clinical trials have demonstrated that when linked to the therapeutic radionuclide iodine-131, recombinant chimeric TNT antibody ((131)I-chTNT) can deliver therapeutic doses to tumors regardless of the location or type of malignancy. Therapeutic efficacy and toxicity of (131)I-chTNT in advanced lung cancer patients were studied in this pivotal registration trial. PATIENTS AND METHODS: Patients with advanced lung cancer were treated with systemic or intratumoral injection of (131)I-chTNT in eight oncology centers in China. The objective response rate (ORR) was assessed as the primary end point. RESULTS: All 107 patients who were entered onto the study and completed therapy had experienced treatment failure after prior radiotherapy or chemotherapy a mean of three times. The results showed an ORR of 34.6% (complete response, 3.7%; partial response, 30.8%; no change, 55.1%; and progressive disease, 10.3%) in all patients and 33% in 97 non-small-cell lung cancer patients. A biodistribution study demonstrated excellent localization of the radioactivity in tumors in both systemically and intratumorally injected patients. The most obvious adverse side effect was mild and reversible bone marrow suppression. CONCLUSION: Radioimmunotherapy with (131)I-chTNT was well tolerated and can be used systemically or locally to treat refractory tumors of the lung.     

榆柏喷雾剂促进皮肤溃疡愈合的药效学研究

目的:研究榆柏喷雾剂对小鼠皮肤溃疡的愈合作用.方法:建立小鼠皮肤创伤和烫伤两种皮肤溃疡模型,记录用药组和对照组小鼠皮肤溃疡面积,用显微镜观察溃疡面炎症细胞浸润情况.结果:与自身对照组相比较,榆柏喷雾剂可明显缩小小鼠皮肤溃疡面积(P＜0.01),同时炎症细胞浸润也有明显减少(P＜0.01);并且局部刺激性试验证明本制剂无刺激性.结论:榆柏喷雾剂可明显促进小鼠皮肤溃疡的愈合.