Growing role of CD40 ligand gene transfer therapy in the management of systemic malignancies besides hepatocellular carcinomas

The article "Cationic liposome-mediated trans-fection of CD40 ligand gene inhibits hepatic tumor growth of hepatocellular carcinoma in mice" [doi:10. 1631/jzus.B0820178] by Jiang et a1.(2009) in a recent issue of the Journal of Zhejiang University SCIENCE B was highly thought provoking. The authors have clearly demonstrated the efficacy of CD40 ligand gene therapy in inhibiting the growth of hepatocellu-lar carcinomas. The findings of Jiang et al.(2009) are highly important as they further support and cor-roborate the rapidly expanding role of CD40 ligand gene therapy in the management of systemic malig-nancies besides hepatocellular carcinomas.     

再生障碍性贫血患者外周血T淋巴细胞亚群检测在治疗选择上的意义

目的：探讨再生障碍性贫血患者治疗前后外周血T淋巴细胞亚群检测的变化及其在不同治疗中的意义。为合理治疗提供依据。方法：采用流式细胞技术检测40例再生障碍性贫血患者治疗前后外周血T淋巴细胞亚群检测的变化及CD4＋／CD8＋,并根据其比值与正常对照组比较将患者分为比值正常型、比值倒置和比值超高型3个免疫亚型。同时按常规治疗和联合免疫抑制治疗进行疗效比较。结果：单独常规治疗时。3个亚型组之间疗效无明显差异;联合免疫抑制治疗时,比值正常型患者的总有效率与常规治疗组无显著差异,而免疫倒置型和免疫异常型（比值减低和增高）患者总有效率较同组常规治疗疗效均显著提高（P〈0．05）,也显著高于比值正常者（P〈0．05）。结论：大多数再生障碍性贫血患者存在着CD4＋／CD8＋的失调。再生障碍性贫血患者的发病机制与免疫异常有密切的相关性。T淋巴细胞亚群检测对临床了解病情和发病机制、合理选择治疗方案、提高诊断和治疗水平都具有重要价值。     

边远地方高校图书馆随书光盘的管理与利用

文章围绕边远地方高校图书馆的具体情况及随书光盘的特点,分析了边远地方高校图书馆随书光盘管理现状,对如何“因地制宜”有效提高光盘的利用率提出了一些针对性的建议。     

外在力场对异佛尔酮不对称氧化反应的影响*

本文通过紫外、红外和圆二色（CD）光谱表征考察了外在离心力场对非手性化合物异佛尔酮不对称氧化生成光学活性产物的影响。结果表明离心力场能够诱导产物的对映体过量,在顺时针和逆时针旋转力场中得到的产物CD230信号相反并随转速的增大而增大。作者推测,顺时针和逆时针圆周离心运动（轴矢量）结合地球在时空上的天然线性运动（极矢量）形成的左、右手螺旋运动的不对称作用可能是诱导反应对映体过量的力学原因。     

模糊闭包空间的连通性

本定义了模糊闭包空间的概念，并将模糊拓扑空间连通性的一系列有关结果推广到模糊闭包空间中。     

Application of causality diagram in system safety analysis

Causality Diagram （CD） is a new graphical knowledge representation based on probability theory. The application of this methodology in the safety analysis of the gas explosion in collieries was discussed in this paper, and the Minimal Cut Set, the Minimal Path Set and the Importance were introduced to develop the methodology. These concepts are employed to analyze the influence each event has on the top event - the gas explosion, so as to find out about the defects of the system and accordingly help to work out the emphasis of the precautionary work and some preventive measures as well. The results of the safety analysis are in accordance with the practical requirements; therefore the preventive measures are certain to work effectively. In brief, according to the research CD is so effective in the safety analysis and the safety assessment that it can be a qualitative and quantitative method to predict the accident as well as offer some effective measures for the investigation, the prevention and the control of the accident.     

由CD4098组成的晶闸管三相过零触发器

本文针对晶闸管移相触发的一些弱点，提出了过零触发的观点。应用CD4098单稳态触发器组成了三相过零触发电路，达到了较为理想的调功效果。该触发器电路简单．调试方便，具有一定的实用价值。     

CD15s和E-cadherin表达与肝细胞癌侵袭转移相关性研究

目的：探讨CD15s和E-钙黏蛋白（E-cadherin）在肝细胞癌组织中的表达及其与肿瘤侵袭转移和患者预后的关系。方法：应用免疫组织化学方法,检测120例肝细胞癌组织中CD15s和E-cadherin蛋白表达,结合随访资料进行分析。结果：CD15s和E-cadherin在肝细胞癌中阳性表达率分别为39.2%和44.2%。CD15s阳性表达的肝细胞癌转移率高（P〈0.05）,分化程度及患者5年生存率低（P〈0.05） E-cadherin阳性表达的肝细胞癌转移率低（P〈0.05）,分化程度及患者5年生存率高（P〈0.05）。CD15s表达与E-cadherin表达呈显著负相关（P〈0.05）。结论：CD15s和E-cadherin表达与肝细胞癌转移和患者生存期密切相关,联合检测CD15s和E-cadherin蛋白表达可作为判断肝细胞癌预后有价值的参考指标。     

急性脑梗塞患者粘附分子CD_(18)、CD_(54)表达的研究

[目的]探讨粘附分子CD18、CD54粘附功能及其表达变化与急性脑梗塞(ACI)关系.[方法]用流式细胞术检测88例ACI患者白细胞粘附分子CD18、CD54含量与脑梗塞发生时程、部位、面积及治疗前后表达。并与30例正常人作对照.[结果]ACI患者CD18、CD54表达明显增高,与正常对照组比较差异显著(P<0.05),与梗塞面积、部位关系不大;ACI患者CD18、CD54表达在7d内均可有较高水平的表达,治疗10d后表达降低,治疗前后比较CD18、CD54差异有意义(P<0.05).[结论]CD18、CD54参与脑梗塞发生发展病理过程.可做为诊断脑梗塞、评估预后的一项辅助指标.