外伤后癫痫98例临床及预后分析

目的分析外伤后癫痫临床与预后,为PTE的合理诊治提供参考。方法回顾性分析98例外伤后癫痫患者的临床表现、药物治疗效果及预后。结果98例外伤后癫痫常见的表现为短暂的部分性发作,并常泛化为全身强直阵挛发作。一线抗癫痫药物治疗总有效率为77．5％。结论外伤后癫痫是局灶性癫痫中常见类型,正确地诊断、良好的依从性与规范化治疗可明显改善其预后。     

培美曲塞二钠联合铂类二线治疗晚期非小细胞肺癌临床观察

目的：探讨培美曲塞二钠联合铂类方案二线治疗晚期非小细胞肺癌（NSCLC）的疗效和不良反应.方法：16例既往化疗失败的晚期NSCLC患者接受培美曲塞二钠联合铂类方案化疗,其中培美曲塞二钠500 mg/m^2加入0.9%氯化钠注射液100 ml静脉滴注超过10 min,第1天;顺铂75 mg/m^2或卡铂剂量AUC=5第2天,静脉滴注.每21 d重复,2周期评价疗效.结果：16例患者中,无CR病例,PR 2例,SD 8例,PD 6例,RR12.6%,DCR为62.5%.主要的不良反应是骨髓抑制、消化道反应和口腔粘膜炎,多为I-Ⅱ度,经对症治疗后可以缓解,不影响继续用药.结论：培美曲塞二钠联合铂类方案二线治疗晚期NSCLC安全有效,耐受性好.     

人工神经网络在膀胱癌诊断中的应用

目的:探讨应用BP神经网络技术建立诊断模型来判断膀胱癌的可行性。方法:153例患者分为训练集和测试集,应用BP神经网络模型,建立人工神经网络诊断模型,然后随机抽样测试样本输入模型进行预测。结果:人工神经网络预测膀胱癌的灵敏度为100%,特异度为92.3%。结论:人工神经网络诊断模型对膀胱癌的判断有良好的诊断性能。     

Early Diagnostic Value of Circulating MiRNA-21 in Lung Cancer： A Meta-Analysis

To evaluate the early diagnostic value of circulating miRNA-21 in diagnosis of lung cancer, databases such as Wan Fang, VIP, PubMed, and Elsevier were systematically searched from 2005 to 2013 to collect relevant references in which the diagnostic value had been evaluated. The statistics were consolidated and the qualities of the studies were classified. The data were analyzed using Meta Disc1.4 software. The diagnostic value of circulating miRNA-21 in lung cancer was assessed by pooling sensitivity, specificity, the likelihood ratio, and the Summary Receiver Operating Characteristic(SROC) curve. Publication biases of the studies involved were analyzed using Stata 11.0 software. A total of 143 papers were collected of which 8 were included, which contained 600 cases and440 controls. A heterogeneity test proved the existence of homogeneity in this study. Upon analysis using random effects models, the weighted sensitivity was 0.68, the specificity 0.77, the positive likelihood ratio 2.84, the negative likelihood ratio 0.40, and the SROC Area Under the Curve(AUC) was 0.8133. Further analysis by subgroup showed that the 5 indicators mentioned above were 0.72, 0.84, 4.50, 0.27, and 0.8987, respectively, for the serum group and 0.63, 0.70, 1.95, 0.53, and 0.7318, respectively, for the plasma group. We conclude that circulating miRNA-21can be regarded a valuable reference in diagnosis of lung cancer. This research showed that in lung cancer the early diagnostic value of miRNA-21 in serum was better than that in plasma.     

乳腺X线图像结构扭曲检测的一种新方法

乳腺X线图像中结构扭曲的检测是乳腺癌诊断的重要手段之一.针对结构扭曲检测假阳性高的问题,运用系统工程原理, 本文提出了一种新的结构扭曲检测方法.该方法通过计算毛刺相似度收敛指数增强放射状毛刺,并利用三环区域模板和收敛门限得到可疑区域,最后使用支持向量机对可疑区域分类.该方法在Mini-MIAS (mammographic image analysis society)图像数据库的64幅乳腺图像和北京大学人民医院乳腺中心50幅临床乳腺图像上进行了验证,实验结果表明, 本文提出的方法能有效地降低假阳性,并且同时适用于东西方女性乳腺图像.     

原发性肝癌患者射频消融后外周血CD4+CD25+Foxp3+Treg细胞对预后的影响

目的研究射频消融术治疗原发性肝癌患者外周血CD4+CD25+Foxp3+调节性T细水平与预后的关系.方法回顾性分析102例原发性肝癌患者经射频消融治疗后外周血CD4+CD25+Foxp3+/CD4+比值与生存时间的关联.结果原发性肝癌患者射频术后CD4+CD25+Foxp3+细胞占CD4+T的比例显著降低,与临床分期、肿瘤大小、AFP水平相关.CD4+CD25+Foxp3+调节性T细胞数目与生存率相关.结论原发性肝癌患者射频消融治疗后外周血Treg水平是判断预后的独立预测指标.     

The research of human exposure to polybrominated diphenyl ethers and perfluoroocatane sulfonate

As two kinds of emerging chemicals, the pollution of polybrominated diphenyl ethers （PBDEs） and perfluoroocatane sulfonate （PFOS） has been becoming a global environmental problem. Also, research of the transport, transfer, bioaccumulation in organism, and toxicology of these two kinds of pollutant is a hotspot in environmental sciences now. In this paper, we summarize and critically review the status and progress of PBDEs and PFOS exposure to human beings. Further, data analyses based on statistical methods are done to study the characters of PBDEs and PCBs concentrations in different regions in the world.     

蜂蛇胶囊与放、化疗结合治疗胃癌的临床疗效探讨

本文探讨蜂蛇胶囊结合放疗、化疗对胃癌患者的减毒增效作用.通过随机选取40例诊断明确的胃癌患者作为观察组,以蜂蛇胶囊结合放疗、化疗进行治疗;对照组单独应用放疗和化疗治疗.观察血象及临床指标的变化,确定蜂蛇胶囊的安全性和疗效.结果表明两组资料经统计学处理有显著性差异（p〈0.05）.说明蜂蛇胶囊结合化疗、放疗同时治疗胃癌患者疗效显著,实验结果表明无脊髓抑制现象,可降低单纯化疗、放疗所引起的毒副反应,改善患者的生存质量,值得临床推广使用.     

P73蛋白在胃炎、不典型增生和胃癌中的表达及意义

目的探讨p73基因在胃癌发生、发展中的作用和意义。方法采用免疫组化技术检测胃炎、轻度不典型增生、中重度不典型增生和胃癌（均为外科手术患者）各30例组织中p73蛋白的表达。结果p73蛋白在胃癌组和不典型增生组中表达高于胃炎组,胃癌组中表达高于不典型增生组（P〈0．05）;p73蛋白的阳性表达率在胃癌的不同的分化度之间有差异,低分化腺癌组织中的阳性表达强度高于高、中分化腺癌（P〈0．05）,p73蛋白在中、重度不典型增生组的阳性表达率与轻度不典型增生组无显著差异（P〉0．05）;在胃癌的不同TNM分期之间也有差异（P〈0．05）,并且TNM分期越高,阳性表达率越高;均与淋巴结转移、肿瘤部位、胃癌侵及层次、肿瘤大小无关（P〉0．05）。结论p73的高表达可能参与了胃癌发生、发展,作为胃癌发生、发展及预后的肿瘤指标物。     

癌细胞C-myc蛋白对他莫昔芬的应答

目的:观察C-myc蛋白在胃癌细胞系BGC823中的表达情况,探讨胃癌细胞BGC823经他莫昔芬(TAM)处理后,C-myc蛋白表达的变化.方法:使用10 5MTAM处理胃癌BGC823细胞系24 h后,通过免疫荧光细胞化学的方法及细胞计数,检测C-myc蛋白的表达变化,并通过WST1法检测细胞活力的变化.结果:C-myc在胃癌BGC823中高表达,经10 5 M TAM处理24 h后BGC823细胞活力明显下降(P<0.05,)同时C-myc的表达减弱(P<0.05).结论:C-myc在胃癌细胞BGC823中发挥生物学作用且与TAM介导的BGC823细胞活力下降相关.