Graves′病患者血清IL-6和IL-8水平的研究

探讨细胞因子在 Graves′病发病中的作用。方法　利用高敏感固相增敏免疫分析方法 ( EASIA)测定了 36例 Graves′病伴甲亢患者 ,1 9例未治亚急性甲状腺炎和 2 8例正常人血清 IL- 6、IL- 8水平。结果　 GD患者血清 IL- 6、IL- 8浓度高于正常人水平 ( P1<0 .0 5,P2 <0 .0 5)。 IL- 6升高的 GD患者占 2 2 .2 2 % ( 8/36)。 IL - 6水平与 IL- 8不相关 ( P >0 .0 5)。 IL - 6水平与 TGA、MCA和 TRAb不相关 ,与 T3 也不相关。此外 1 9例未治亚急性甲状腺炎 ( SAT)患者血清 IL - 6水平也高于正常人 ( P <0 .0 5)。结论　在 GD患者发病中存在 IL - 6、IL - 8系统的参与     

用流式细胞测定仪测定AITD患者TRAb

以人工重组ＴＳＨ受体表达的中国仓鼠卵细胞（ＣＨＯ－ＴＳＨＲ）为靶细胞,用流式细胞（ＦＡＣＳ）测定技术,对４５例自身免疫性甲状腺病（ＡＩＴＤ）患者血清中ＳＨ受体抗体（ＴＲＡｂ）进行测定。结果显示：３６例ＧＤ患者阳性细胞结合的百分数为１．９％～７７．４％。阳性率为９１．６６％。其均值２６．１３９％与正常人均值６．１６３％相比有显著性差异（Ｐ＝０．０００１）。９例桥本（ＨＴ）甲减患者５例阳性,阳性率为５５．５６％。证实以ＣＨＯ－ＴＳＨＲ细胞为靶细胞用ＦＡＣＳ进行ＴＲＡｂ汕测定不失为一种敏感简便的新方法。     

ERYTHROCYTE IMMUNE ADHERENCE AND REGULATIVE FUNCTION OF PATIENTS AND RESIDENTS IN KESHAN DISEASE AREA AND ITS RELATION TO BLOOD SELENIUM LEVELS

［1］苗成波主编．陕西克山病防治研究[C]．西安：陕西科学技术出版社,1998．226～228 ［2］Beck MA,Kolbeck PC, Rohr LH, et al. Benign human enterovirus becomes virulent in selenium-deficient mice [J]. J Med Virol, 1994,43:166 ［3］张培毅,徐光禄,薛文岚,等．硒对克山病病区居民红细胞免疫功能的影响[J].西安医科大学学报,1993,14(3)：234 ［4］郭珍．红细胞免疫及其调节功能测定方法[J]．免疫学杂志,1990,6(1)：60 ［5］郭珍,张培毅．用聚乙--醇沉淀法检测风湿关节炎患者循环免疫复合物[J],西安医科大学学报,1983,4(4)：371 ［6］Spallhilz JE,Boylan LM,Larsen HS. Advances in under-standing selenium＇s role in the immune system[J]. An-nals New York Academy of Sciences,1990,587:123 ［7］宋鸿彬,徐光禄,杨虞勋,等．低硒与克山病关系的临床评估[J].陕西医学杂志,1992,21(10)：589     

预应力结构管道压浆通病的预防措施

预应力结构管道压浆中容易出现压浆不饱满、压浆材料强度不足、压浆管道冻胀等通病。从压浆设备选择、材料配合比设计、灌浆等几个主要环节进行分析研究．有助于提高桥梁的质量和使用寿命。     

发动机图像数据提取

对获得的发动机万有特性图像编写程序实现数据提取,同时对已获得的图像数据,采用数学方法建立发动机模型．通过误差分析与图像对比．表明建模方法的正确。     

柴油机缸盖启动阀修复及改进措施

通过分析柴油机运行时的一系列故障,结合修理过程,确定了发生故障的因果关系。同时对修复故障所必须的修理工艺要点进行了介绍,对缸盖的结构提出了简单而且行之有效的改进方法,拟杜绝类似事故的发生。     

锚杆静压桩处理一项目地基实例

通过具体的工程实例,介绍了承载力锚杆静压桩在一项目的应用,详细介绍了锚杆静压桩施工技术。     

Eukaryotic expression and biological activity analysis of neuroprotective peptide [Gly14]-Humanin

Objective To investigate the expression of neuroprotective peptide [Gly14]-Humanin (HNG) in eukaryotic cells by gene engineering technique and analyze its biological activity. Methods By means of asymmetrical primer/template, double stranded cDNA of HNG with FLAG in its C-terminal was obtained, which was cloned into the plasmid pcDNA3.1(-), and the resultant recombinant vector pcDNA3.1(-)/HNG-FLAG was transfected into PC12 cells. At the same time, the recombinant vector pcDNA3.1(-)/EGFP was transfected to control the efficiency of transfection. The expression of HNG in the cells was determined by immunocytochemistry. In order to analyze the biological activity of the expressed HNG, 25μM Aβ25-35 peptide was added to the culture medium of the transfected cells for 24h, then cell morphology, MTT assay and Hoechst 33258 staining were observed. Results The eukaryotic expression vector of pcDNA3.1(-)/HNG-FLAG was identified by enzyme digestion and sequencing. HNG was highly expressed in PC12 cells. After exposure of PC12 cells to 25μM Aβ25-35 for 24h, cell viability decreased to (65.8±5.3)%, and the dystrophic changes of neuritis and nuclei condensation were obvious. When cells were pre-transfected with pcDNA3.1(-)/HNG-FLAG, Aβ25-35-induced cell death and morphological changes of cells and nuclei were suppressed. In contrast, pre-transfected with empty vector did not protect cells from Aβ25-35-induced toxicity. Conclusion The eukaryotic expression vector for FLAG-tagged HNG was successfully constructed and expressed in PC12 cells. Expressed HNG has biological activity.     

硒与大骨节病关系的研究

本研究结果说明,病区儿童血(全血、血浆、血细胞)、尿和发硒含量显著低于相邻和远离非病区和硒强化食盐区;发或尿硒含量与大骨节病干骺端病变检出率有显著或非常显著负相关关系;血硒在病区内与大骨节病干骺端病变检出率间关系不密切。     

新时代背景下地方高排放老旧私家车淘汰政策的反思与改革建议

随着我国经济的发展及人民生活水平的日益提高,汽车保有量的迅速攀升也带来了日益严重的汽车尾气排放污染.而作为汽车尾气污染排放控制系统中的重要一环-高排放老旧私家车淘汰政策,也随着排放标准的加速更新换代使得旧车有加速淘汰的趋势,本文基于习近平新时代背景对当前地方高排放老旧私家车淘汰政策的弊端及危害逐一进行了剖析,并创新性地...