{"title":"[The treatment effect of immunoglobulin in AIDS with Guillain-Barre syndrome].","authors":"Wen-Luo Zhang, Yue-An Cao, Jing Xia, Lu Yang, Wen-Xiu Xie, Yu Wang, Chao-Sheng Peng","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To discuss the treatment effect of immunoglobulin in acquired immune deficiency syndrome (AIDS) with Guillain-Barre syndrome (GBS).</p><p><strong>Methods: </strong>The clinical data of AIDS with GBS, diagnosed by clinical and laboratory methods, were retrospectively analyzed, and literature retrieval analyzed.</p><p><strong>Results: </strong>After treatment by immunoglobulin and antiviral. The patient's peripheral nerve injury recovered, and the number of HIV decreased.</p><p><strong>Conclusion: </strong>Immunoglobulin has a therapeutic effect for HIV infection related GBS, and beneficial to antiviral treatment.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"210-1"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31938471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Full sequence analysis and characterization of the Shenzhen Norovirus strain SZ2010422].","authors":"Cui-Hong Zhang, Jia-Jian Qin, Ya-Qing He, Hai-Long Zhang, Hui-Ying Li, Miao Jin, Ke-Na Chen, Shao-Long Feng, Zhao-Jun Duan","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To obtain information on viral molecular structural and evolutionary characteristics, we conducted the SZ2010422 full-length genomic analysis.</p><p><strong>Methods: </strong>Primers were designed by New Orleans full sequence, SZ2010422 full genome was amplified by RT-PCR, the whole genome sequence and the capsid domain amino acid sites was analysised after cloned and sequenced.</p><p><strong>Results: </strong>The genome of G II-4 Norovirus SZ2010422 strain was consist of 7559 bp, it revealed three ORFs composites of the whole genome, ORF1 (5100 bp), ORF2 (1623 bp), ORF3 (807 bp) respectively, ORF1 and ORF2 had 19 nucleotide overlap. By evolutionary comparative analysis found SZ2010422 genomic nucleotide sequences with reference strains of G II-4 New Orleans1805 strains the highest homology with a total length of homology was 99.3%, of ORF1 (99.5%), ORF2 (99.2%), ORF3 (98.6%). Phylogenetic analyses showed SZ2010422 belonging to G II-4 New Orleans variant. Date of 541 amino acid analyses showed: New Orleans variant strains of popular sites: aa310N or K, --> S aa341D --> of N, aa359T--> S, aa396H --> P, aa460H --> Y.</p><p><strong>Conclusion: </strong>Norovirus SZ2010422 belonged to the G II-4 New Orleans variant. In This study, SZ2010422 full sequence can be used not only as a full-length NoV variant sequence standard for future comparison studies, but also as useful material for the public health field by enabling the diagnosis, vaccine development, and prediction of new emerging variants. Noroviruses; Genes; Sequence analysis</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"181-3"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31939082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Evolutionary and transmission characteristics of rabies viruses in Asia].","authors":"Xiao-Yan Tao, Hao Li, Qing Tang, Guo-Dong Liang","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To understand the rabies virus (RABV) evolutionary relationship between the strains of China and Asia and to know the evolution and transmission characteristics of RABV in Asia.</p><p><strong>Methods: </strong>The G sequences of representative strains from China were selected and combined the sequences of other countries in Asia to analyze using BEAST and MigraPhyla software.</p><p><strong>Results: </strong>The phylogenetic analysis showed that six groups (China I-VI) of China had different epidemic range: China I , II and V groups just cycled in our country; China VI group, from Guangxi and Yunnan provinces, crossed with Southeast Asian strains; China III group and IV group also have closer genetic relationship with Asian country strains.</p><p><strong>Conclusion: </strong>Geographic migration in Asia showed that Thailand and India may be two rabies transmission centers in Asia.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"187-9"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31939084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Dynamic analysis of the lymphocyte subsets in HCV children with different genotypes during treatment].","authors":"Da-Gang Wang, Lin Chen, Yuan-Li Mao, Fen Qu, Hai-Bin Wang, Cui-Li Yao, Jian-Gong Zhu","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To discuss the changes of lymphocyte subsets in HCV children with different genotypes during treatment with pegylated interferon alfa-2b and ribavirin.</p><p><strong>Methods: </strong>The genotype of 45 HCV infected children were identified by real time PCR. The lymphocyte subsets were dynamically detected by BD FACSCalibur flow cytometer with four color MultiTEST IMK Kit during the treatment.</p><p><strong>Results: </strong>For the children with 1b genotype, after 24 weeks, the CD4+ T cells were higher than pre-treatment (P < 0.05). For the children with 2a genotype, after 12 weeks and after 24 weeks, the CD3+ T cells and CD4+ T cells significantly increased while the NK cells decreased than pre-treatment (P < 0.05).</p><p><strong>Conclusions: </strong>The lymphocyte subsets of HCV children with 2a genotype were different from 1b genotype during trentment with pegylated interferon alfa-2b and ribavirin.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"204-6"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31938469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jun Hou, Jian Zhang, Jing-Xia Guo, Lin Cheng, Jing Zhao, Jia Liu, Jun Xu, Ai-Xia Liu, Yong-Ji Song, Pan-Yong Mao, Bo-An Li, Yuan-Li Mao
{"title":"[Cloning and expressing of tissue inhibitor of metalloproteinases I gene fragment and preparation of monoclonal antibodies against the recombinant protein].","authors":"Jun Hou, Jian Zhang, Jing-Xia Guo, Lin Cheng, Jing Zhao, Jia Liu, Jun Xu, Ai-Xia Liu, Yong-Ji Song, Pan-Yong Mao, Bo-An Li, Yuan-Li Mao","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To prepare the monoclonal antibody (mAb) against tissue inhibitor of metalloproteinases I (TIMP-I) fusion protein.</p><p><strong>Methods: </strong>TIMP-I gene was amplified from fibrotic human liver tissue by RT-PCR, then ligated with pQE31 to form recombinant plasmid pQE-TIMP-I and transformed into E. coli BL21. The protein induced by IPTG was purified by 6 x His-tag and used to immunize the BALB/c mice. The specific monoclonal antibodies (mAbs) were prepared by the cell fusion technique. Western Blot were used to detect specificity of mAbs.</p><p><strong>Results: </strong>The prokaryotic plasmid expressing the recombinant protein was constructed, and the TIMP-I recombinant protein was expressed and purified. Four hybridoma cell lines that secreted anti-TIMP-I mAbs were obtained. 3 of 4 mAbs were the IgG1 subtype. Western Blot indicated the mAbs showed specific combination with TIMP-I protein.</p><p><strong>Conclusion: </strong>The TIMP-I recombinant protein is highly purified and has strong antigenicity. The anti- TIMP-I mAbs were prepared successfully.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"231-3"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31940059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yu Lan, Xiang Zhao, Xi-Yan Li, Ye Zhang, Jun-Feng Guo, Ming Li, Wei-Juan Huang, He-Jiang Wei, Yan-Hui Cheng, Min-Ju Tan, Zhao Wang, Lei Yang, Ning Xiao, Da-Yan Wang, Yue-Long Shu
{"title":"[Selection pressure analysis of H3N2 influenza virus from China between 1992 and 2012].","authors":"Yu Lan, Xiang Zhao, Xi-Yan Li, Ye Zhang, Jun-Feng Guo, Ming Li, Wei-Juan Huang, He-Jiang Wei, Yan-Hui Cheng, Min-Ju Tan, Zhao Wang, Lei Yang, Ning Xiao, Da-Yan Wang, Yue-Long Shu","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>In order to investigate the relationship between selection pressure and the prevalence of antigenic clusters, we sequenced and analyzed the H3N2 influenza virus from China between 1992 and 2012.</p><p><strong>Methods: </strong>The H3N2 influenza virus (n = 1206) in China from 1992 to 2012 was analyzed, include global selection pressure and sites positive selection pressure analysis.</p><p><strong>Results: </strong>Considering all the H3N2 influenza viruses during these 21 years, a total of four amino acid sites subject to positive selection. The global selection pressure varies with the variation of different antigenic clusters and three years with peak bottom selection pressure were identified.</p><p><strong>Conclusion: </strong>The global selection pressure rise from the peak bottom, a new antigenic clusters will appear andprevalent in the population, indicating the best time to replace the vaccine strain.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"177-80"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31939081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lin Liu, Quan-Fu Zhang, Chuan Li, Jian-Dong Li, Xiao-Lin Jiang, Fu-Shun Zhang, Wei Wu, Mi-Fang Liang, De-Xin Li
{"title":"[A double antibody sandwich ELISA based assay for titration of severe fever with thrombocytopenia syndrome virus].","authors":"Lin Liu, Quan-Fu Zhang, Chuan Li, Jian-Dong Li, Xiao-Lin Jiang, Fu-Shun Zhang, Wei Wu, Mi-Fang Liang, De-Xin Li","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To develop an assay for titration of severe fever with thrombocytopenia syndrome virus (SFTSV) based on double antibody sandwich ELISA.</p><p><strong>Methods: </strong>A double antibody sandwich ELISA was developed for detection of SFTSV based on SFTSV nucleocapsid (N) protein specific poly- and monoclonal antibodies, procedures were optimized and evaluated. This ELISA based titration assay was compared with fluorescence assasy and plaque assay based titration method.</p><p><strong>Results: </strong>The results suggested that the titers obtained by ELISA based method are consistent with those obtained by IFA based method (R = 0.999) and the plaque assay titration method (R = 0.949).</p><p><strong>Conclusion: </strong>The novel ELISA based titration method with high sensitivity and specificity is easy to manage and perform, and can overcome the subjectivity associated with result determination of the fluorescence assay and plaque assay based methods. The novel ELISA based titration method can also be applied to high throughput detection.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"215-7"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31940054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shao-Bing Zhan, Xiao-Guang Zhang, Hong-Xia Li, Yi Zeng
{"title":"[A novel SELEX method for screening of HIV-1 P24 antigen].","authors":"Shao-Bing Zhan, Xiao-Guang Zhang, Hong-Xia Li, Yi Zeng","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To screen aptamers that can bind P24 antigen tightly and specificly, and verify its specificity and affinity.</p><p><strong>Methods: </strong>Polycarbonate PCR plate was coated with P24 antigen and SELEX technology was used to screen aptamer on the PCR plate. The primary and secondary structure of these aptamers was analyzed by software. Through HRP labeled streptavidin and biotin labeled aptamers, the affinity and specificity of obtained aptamers were verified by ELISA.</p><p><strong>Results: </strong>The polycarbonate PCR plate could be coated with P24 antigen. Electrophoretic analysis showed the aptamers had been enriched. Sequence aligment analysis showed that these aptamers have consensus sequence and their apatial structure was multiple; ELISA verified that aptamers had high affinity with P24 antigen.</p><p><strong>Conclusion: </strong>A simple method was established for screening aptamers that can bind HIV-1 P24 antigen specificly and tightly.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"218-20"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31940055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Development of EV71, CA16 and other enterovirus vrial real-time qualitative PCR diagnostic kit].","authors":"Li-Qin Li, Jing Zhong, Lin-Fu Zhou, Fu-Chu Qian, Jia-Wei Wang, Li-Cheng Dai","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>A novel multiplex real-time RT-PCR kit was developed to detect EV71, CoxA16 and other human enteroviruses simultaneously with an internal amplification control to avoids false negatives, which used for hand, foot and mouth disease in the clinical diagnosis and epidemiological surveillance.</p><p><strong>Methods: </strong>Design specific primers and probes of EV71, CA16, other intestinal virus and internal amplification control, improve the extraction method of virus nucleic acid. Optimization the detection system of real-time quantitative PCR. Research the products of the accuracy, stability, precision, amplification efficiency and detection of linear range.</p><p><strong>Results: </strong>The primers and probes had high spicificity. The Viral RNA extraction effect of this Kit is as same as that of QIAamp Viral RNA mini Kit (QIAGEN company), but less reagent cost. The optimal concentrations of primers and probes are 0.2 micromol/L for all the upstream and downstream primers, 0.06 micromol/L for probes of other human enteroviruse, 0.08 micromol/L for probes of EV71 and CA16 respectively. The kit has good stability, accuracy and precision. The amplification efficiencies of EV71, CoxA16 and other human enteroviruses are 106% ,101% and 105% and the detection of linear range is from 10(9) copies/microl-10(2) copies/microl.</p><p><strong>Conclusion: </strong>The novel multiplex real-time RT-PCR kit for detecting EV71, CoxA16 and other human enteroviruses simultaneously with an internal amplification control has good stability, accuracy, precision and amplification efficiencies. So it has great value in clinical application.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 3","pages":"224-7"},"PeriodicalIF":0.0,"publicationDate":"2013-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31940057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiang-Ying Huang, Shuang-Qing Yu, Zhan Cheng, Jing-Rong Ye, Ke Xu, Xia Feng, Yi Zeng
{"title":"[Identification of Env-specific monoclonal antibodies from Chinese HIV-1 infected person by magnetic beads separating B cells and single cell RT-PCR cloning].","authors":"Xiang-Ying Huang, Shuang-Qing Yu, Zhan Cheng, Jing-Rong Ye, Ke Xu, Xia Feng, Yi Zeng","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Objective: </strong>To establish a simple and practical method for screening of Env-specific monoclonal antibodies from HIV-1 infected individuals.</p><p><strong>Methods: </strong>Human B cells were purified by negative sorting from PBMCs and memory B cells were further enriched using anti-CD27 microbeads. Gp120 antigen labbled with biotin was incubated with memory B cells to specifically bind IgG on cells membrane. The memory B cells expressing the Env-specific antibody were harvested by magnetic beads separating, counted and diluted to the level of single cell in each PCR well that loading with catch buffer containing RNase inhibitor to get RNAs. The antibody genes were amplified by single cell RT-PCR and nested PCR, cloned into eukaryotic expression vectors and transfected into 293T cells. The binding activity of recombinant antibodies to Env were tested by ELISA.</p><p><strong>Results: </strong>Three monocolonal Env-specific antibodies were isolated from one HIV-1 infected individual.</p><p><strong>Conclusion: </strong>We can obtain Env-specific antibody by biotin labbled antigen, magnetic beads separating technique coupled with single cell RT-PCR and expression cloning.</p>","PeriodicalId":70973,"journal":{"name":"中华实验和临床病毒学杂志","volume":"27 2","pages":"123-5"},"PeriodicalIF":0.0,"publicationDate":"2013-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31739223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}