1，6-二磷酸果糖联合辅酶Q10治疗小儿病毒性心肌炎20例疗效观察

目的观察1，6-二磷酸果糖加辅酶Q10治疗小儿病毒性心肌炎的疗效。方法对1999年1月至2006年12月收治的小儿病毒性心肌炎患儿49例采用完全随机设计方法分成治疗组20例和对照组29例。治疗组给予1，6-二磷酸果糖100～250mg／（kg·d）静脉滴注，辅酶Q10 1～2mg／（kg·d）口服；对照组给予能量合剂静脉滴注，1次／d。10～14d为1个疗程，观察2组临床症状、心电图、心肌酶及心功能变化，并进行疗效评定。结果治疗组与对照组的总有效率分别为95．0％与72．4％，2组比较有统计学意义（P〈0．05）。结论1，6-二磷酸果糖加辅酶Q10治疗小儿病毒性心肌炎有较好疗效。

应用BED—CEIA方法估算陕西省2011年三类高危人群HIV-1新发感染率

目的估计陕西省2011年男男性行为者、吸毒者和性病门诊男性就诊者三类高危人群的艾滋病病毒（HIV）新发感染情况。方法使用酶联免疫试验（ELISA）和蛋白免疫印迹试验（WB）对陕西省2011年4～7月内15个哨点所监测到的800例男男性行为者、2400例吸毒者和2800例性病门诊男性就诊者进行HIV-1抗体筛查和确证，再应用BEDHI、L1捕获酶联免疫测定法（BEDHIV-1 capture enzymeimmunoassay，BED-CEIA）检测出其中的新发感染样品，从而估算其HIV-1新发感染率。结果陕西省2011年男男性行为者、吸毒者和性病门诊男性就诊者的HIV-1新发感染率分别为4．42％（2．19％～6．66％），0和0．39％（O．05％t0．73％）。结论陕西省男男性行为者HIV-1新发感染率较高，吸毒者和性病门诊男性就诊者的HIV1新发感染率相对比较低。

Effect of Cistanoside Compounds on Oxidative Stress and Immunity

Cistanoside compounds were studied as the scavengers of hydroxyl and superoxide anion free radicals with spin trapping ESR method in vitro. Low-temperature ESR technique, experimental technique of immunotoxicology and biochemical method were used to detect the level of reactive oxygen radicals in kidney tissue of rats and SOD level and GSH-Px activity in rat serum. The results indicated that cistanoside compounds could inhibit reactive oxygen free radicals in vitro and prevent and repair the free radical damages for diabetic nephropathy. The experimental data of 揷arbon-particle detection in mouse serum?showed that cistanoside compounds could improve the phagocytotis index of macrophages (Mj) in mice blood and increase the weights of immune organs of mice.

Effects of transgenic poplar clone 741 with insect resistance on structure and diversity of arthropod community

Arthropod community structure and diversity were investigated in transgenic insect-resistant hybrid poplar 741 field trial plots, which had five isogenic clones with two genes （Bt. toxin [Cry IAc] and arrowhead proteinase inhibitor [API]） in comparison to control plots. Transgenic poplar clones were investigated according to their insect resistance （high and medium resistant clones）, being systematically probed into varying levels with feeding tests before. Investigations were carded out during three years （2002, 2003 and 2005）. The results indicated that among the basal species, transgenic plants in general had lower amounts of phytophagous insects, and an increased quantity of neutral arthropods such as saprophytic and strolling species. Among the top and intermediate species in transgenic variants, the quantity of predatory natural enemies was increased, while the amount of parasitoid ones was slightly reduced. The arthropod community characteristic indices were analyzed from different aspects in the three variants. It was discovered that, not only the characteristic indices of the whole arthropod community, but also the characteristic indices of the sub-communities （such as natural enemy, pest and neutral arthropods） and the functional groups categorized by their feeding patterns, showed a higher diversity and evenness and a lower dominancy concentration indices in the high-resistant and medium-resistant plots compared with the control. Transgenic poplar 741 showed improved ecological effects both in partial and total aspects. It could be concluded that composition and structure of the arthropod community in plots with transgenic insect-resistant poplar were turned to be more reasonable and itsdiversity and stability was enhanced.

大鼠乳酸脱氢酶辅酶结合结构域的克隆与表达

为了研究分离结构域的结构与功能关系 ,利用聚合酶链式反应 (PCR)方法分离出大鼠肌肉乳酸脱氢酶的N端编码 1～ 16 3位氨基酸的辅酶结合结构域的基因片段 .此结构域分别在热诱导表达系统和融合表达系统中获得高效表达 ,两系统获得的单独结构域经N端序列分析表明表达正确 .有关辅酶结合结构域工作正在进行 .

On-chip isotachophoresis separation of functional DNA origami capture nanoarrays from cell lysate

Scaffolded DNA origami, a versatile method to construct high yield self- assembled DNA nanostructures, has been investigated to develop water-soluble nanoarrays for label free RNA detection, drug delivery, molecular positioning and recognition, and spatially ordered catalysis of single molecule chemical reactions. Its attributes that facilitate these applications suggest DNA origami as a candidate platform for intracellular targeting. After the interaction with targeted proteins in cell lysate, it is critical to separate and concentrate DNA origami nanoarrays from the crude cell lysate for further analysis. The recent development of microchip isotachophoresis （ITP） provides an alternative robust sample preconcentration and electrophoretic separation method. In this study, we present online ITP for stacking, separation and identification of aptamer-functionalized DNA origami and its thrombin complex in a simple cross-channel fused silica microfluidic chip. In particular, the method achieved separation of a binding complex in less than 5 min and 150-fold signal enhancement. We successfully separated and analyzed the thrombin bound origami-aptamer spiked into cell lysate using on-chip ITP. Our results demonstrate that origami/thrombin nanostructures can be effectively separated from cell lysate using this method and that the structural integrity of the concentrated binding complex is maintained as confirmed by atomic force microscopy （AFM）. An ITP-based separation module can be easily coupled to other microchip pre- and post-processing steps to provide an integrated proteomics analysis platform for diagnostic applications.

BED-CEIA估计HIV-1新近感染率的有效性及其影响因素的评价

在艾滋病流行病学研究中,衡量艾滋病流行趋势最常用的指标是HIV累积感染率和新近感染率.与累积感染率相比,新近感染率对艾滋病流行趋势预测、干预效果评价以及防制策略的制定等能提供更直接的信息.在获取新近感染率的方法中,除了经典的流行病学队列随访方法,目前普遍使用的血清学方法之一是IgG捕获BED酶联免疫法（BED-CEIA）.2001年,美国疾病预防控制中心（CDC）艾滋病免疫和诊断室评估了16种基于不同抗体和原理的HIV-1新近感染检测方法,发现新近感染者与既往感染者相比,各种抗体滴度均较低;其中gp41抗体滴度在新近感染者和既往感染者中的差别最大,两者的滴度区间几乎没有重叠,新近感染者的gp41抗体亲和力低于既往感染者,从而认为gp41抗体能够区分新近感染者和既往感染者,并且酶联免疫实验操作相对简单、效果也较理想,因此该室着手开发基于gp41抗体的HIV-1新近感染检测的酶联免疫方法[1].