抗土拨鼠肝炎病毒核心蛋白单克隆抗体的制备、性质鉴定及初步应用

目的研制出能特异与土拨鼠肝炎病毒核心蛋白（WHc）结合的单克隆抗体,使之能特异性地对土拨鼠肝炎病毒（WHV）进行检测,并可能应用于相关肝炎病毒的筛查。方法以原核表达的土拨鼠肝炎病毒重组核心蛋白（WHc 1～149氨基酸）免疫BALB/c小鼠,常规杂交瘤技术进行细胞融合,有限稀释法克隆化,间接酶联免疫吸附试验（ELISA）和免疫组织化学（IHC）筛选、鉴定。结果筛选出5株（4B1E、6C5D、6C5C、6D1D、6D1G）能稳定分泌抗土拨鼠肝炎病毒核心蛋白抗体的杂交瘤细胞株。此5株单抗适用于ELISA、IHC、Western blot等方面的研究,与HBcAg有交叉反应,并且在部分中国旱獭的肝脏组织进行IHC检测呈现阳性反应。结论制备的5株单抗可用于土拨鼠肝炎病毒等嗜肝脱氧核糖核酸病毒的研究,可能在寻找新的相关肝炎病毒中起重要作用。     

Cloning, Expression and Polyclonal Antibody Preparation of the Asialoglycoprotein Receptor of Marmota Himalayan

The objective of this study is to express the carbohydrate recognition domain （CRD） of the asialoglycoprotein receptor （ASGPR） H1 and H2 subunits of Marmota himalayan in vitro, and develop polyclonal antibodies against the recombinant proteins. RT-PCR was used to amplify ASGPR CRDH1 and CRDH2 from the liver tissue of Marmota himalayan. The products of amplification were subcloned into prokaryotic expression vector pRSET-B, and expressed in E.coli BL21（DE3）plysS. The recombinant proteins were purified using Ni-NTA spin column. The purified proteins were inoculated into BALB/c mice to develop polyclonal antibodies. The sensitivity and specificity of antibodies were evaluated by enzyme-linked immunosorbent assay （ELISA）, Western blotting and immunohistochemical staining （IHC）. The polyclonal antibodies showed high sensitivity and specificity against both denaturated and native ASGPR proteins. We successfully amplified and expressed the ASGPR CRDs of Marmota himalayan. The nucleic sequences of ASGPR CRDH1 and CRDH2 of Marmota himalayan have been submitted to Genbank and the sequence ID are DQ 845465 and DQ845466, respectively. The proteins and antibodies prepared can be used for targeting gene therapy in a new animal model-Marrnota himalayan—— for the research of infectious diseases of hepatitis viruses and liver cancer treatment.     

建设资源节约型医院

深入贯彻落实科学发展观,响应国家建设节约型社会的号召,创建资源节约型医院,是降低医院运行成本,推进医院内涵建设的重要举措。本院以强化物资管控、发挥人力资源最大效能为重点和突破,以改革和创新为手段,优化资源配置,医院建设走上了“优质、高效、低耗的可持续发展之路”。     

Effect of TSLC1 Gene on Proliferation, Invasion and Apoptosis of Human Hepatocellular Carcinoma Cell Line HepG2

The recombinant plasmid pCI-TSLC1 carrying TSLC1 gene was stably transfected into human hepatocellular carcinoma cell line HepG2. Cell proliferation was analyzed by MTT assay. The ability of migration was determined by transwell and FACSort flow cytometry was used to detect the cell cycle distribution and apoptosis. Western blotting revealed that H4 expressed higher amounts of TSLC1 protein than H15 and H0 did. The growth of TSLCl-transfected cells was significantly suppressed in vitro, and the ability of migration was reduced as well. The re-expression of TSLC1 could induce cell apoptosis. It was concluded that TSLC1 strongly inhibited the growth and ability of migration of HepG2 cell line in vitro and also induced apoptosis, suggesting that TSLC 1 could reduce the tumorigenicity of human hepatocellular carcinoma cell line HepG2 in vitro, which provided a basis for further exploring the roles of TSLC1 in hepatocellular cellular carcinoma.     

Baicalein Inhibition of Proliferation and Migration of Human Vascular Endothelial Cells in Vitro

ANGIOGENESIS is a complex process and hasbeen studied extensively. During the metabolism ofarachidonic acid (AA), catalyzed by 12-lipoxygen-ases (12-LOX), a number of metabolites areproduced, including 12(S)-hydroperoxyeicosate-traenoic acid (HPETE) and the end products, 12(S)-hydroxyeicosatetraenoic acid (HETE) or leuko-trienes. 12-LOX isoxymes are categorized as thefamily of enzymes in lipid peroxidation, such asplatelet-type, leukocyte-type and epidermal 12-LOX.Platelet-type 12-LOX selectively cleaves AA...     

提高护理文书质量的体会

护理文书包括护理病历、交班报告、特护记录单和一些专科护理记录单等,是病情变化、实施护理措施的记录,具有法律效应,是宝贵的临床资料,具有科研、总结、再开发再利用的价值.     

人宫颈癌基因反义核酸抑制肝癌细胞生长作用的实验研究

目的探讨针对人宫颈癌基因(HCCR)反义核苷酸影响肝癌细胞增殖、凋亡的作用。方法构建pcD-NA3.1-HCCR反义真核表达质粒,转染HepG2细胞,实时定量PCR检测HCCR mRNA表达水平,Western blot检测其蛋白表达水平,流式细胞仪观察HepG2细胞凋亡和细胞周期的变化,MTT法检测细胞的增殖活性。结果HCCR反义核酸可有效抑制HepG2细胞HCCR的表达,与转染前相比,转染后24小时HCCR mRNA水平下降到16%,其蛋白表达水平在24小时也明显降低。对细胞的增殖与凋亡活性检测显示:转染HCCR反义质粒后,HepG2细胞增殖受到抑制,转染后24小时抑制率为47.62%(P<0.05),细胞凋亡率为14.34%±0.91%,较对照组明显增多(t=21.799,P<0.05),细胞分裂多停止在G0G1期。结论HCCR反义核酸可以抑制HepG2细胞中HCCR的表达,抑制细胞增殖,促进细胞凋亡,使细胞停滞于G1期。HCCR反义核酸用于肝癌细胞的基因治疗具有一定的潜在意义。     

对某部军人生命质量影响因素研究

目的：找出影响军人生命质量的主要因素,为增进官兵生命质量提供参考依据。方法：用SF-36量表评价联勤某部1035名军人的生命质量,同时调查可能影响生命质量的个人特征、文化因素、社会经济及有无慢性病等情况。用t检验、方差分析和逐步回归对每一种影响因素分别分析,找出影响生命质量的主要因素。结果：单因素分析时,单位编制、单位居住地、年龄、军龄、性别、婚姻状况、慢性病、文化程度、职务、类别、经济收入等11种因素与生命质量的各领域均有关系。进一步多因素分析,在排除了各因素之间的相互影响后发现,对生命质量的主要影响因素是疾病和类别。结论：积极开展体能训练,注意慢性病的预防与控制;活跃边远地区部队官兵的文化生活;教育军官自觉维护家庭稳定,融洽官兵关系是提高联勤部队官兵生命质量的关键。     

医院物资控制系统的研发与应用

物资控制是医院成本控制的关键,物资控制信息化不仅可以堵塞漏洞,减少人为因素的影响．而且推进了’医院的规范化管理与标准运营。我院自行研究开发了医院物资控制系统软件,对医院所有物资的采购、请领等院内流动及库存进行全程跟踪、量化管理,较好地控制了成本,净利润有了进一步提高．为领导决策提供了准确的依据。     

表面抗原和抗体双阳性慢性乙型肝炎病毒感染者病毒S基因的变异分析

目的 了解HBsAg和抗-HBs双阳性慢性HBV感染者的S基因变异情况.方法 分别对8例HBsAg和抗-HBs双阳性(实验组)及9例HBsAg阳性、抗-HBs阴性慢性HBV感染者(对照组)的S基因进行PCR扩增并测序,将测序结果进行对比分析.基因型和血清型分布比较、主要亲水区变异位点数比较采用Fisher'S精确检验,核苷酸和氨基酸序列的同源性比较采用t检验.结果 感染HBV的基因型分布:实验组为B型2例、C型6例,对照组为B型6例、C型3例,两组间差异无统计学意义(P>0.05);血清型分布:实验组为adw 2例、adr 5例、ayr 1例,对照组为adw 6例、adr 3例,两组间差异无统计学意义(P>0.05).实验组和对照组HBV前S1区的核苷酸替换率(2.29%比1.8%)和氨基酸替换率(2.66%比1.59%)差异无统计学意义(t值分别为1.56和1.39,P值均>0.05),前S2区的核苷酸替换率(1.74%比0.91%)差异有统计学意义(t=4.68,P<0.01),氨基酸替换率(3.18%比2.05%)差异无统计学意义(t=1.85,P>0.05);S区的核苷酸替换率(2.13%比0.81%)和氨基酸替换率(4.37%比1.52%)差异有统计学意义(t值分别为6.00和5.32,P值均<0.01).主要亲水区内外均存在氨基酸的替换,"a"决定簇变异相对较高(P<0.05).结论 HBsAg和抗-HBs双阳性慢性HBV感染者的S基因变异率相对较高.