您现在的位置: 首页> 研究主题> HBcAg

HBcAg

HBcAg的相关文献在1983年到2022年内共计209篇,主要集中在内科学、临床医学、基础医学 等领域,其中期刊论文195篇、会议论文1篇、专利文献13篇;相关期刊124种,包括生物技术通报、临床肝胆病杂志、实用肝脏病杂志等; 相关会议1种,包括第十一届全国感染药学学术会议等;HBcAg的相关文献由604位作者贡献,包括赵伟、刘伟、罗婵等。

HBcAg—发文量

期刊论文>

论文:195 占比:93.30%

会议论文>

论文:1 占比:0.48%

专利文献>

论文:13 占比:6.22%

总计:209篇

HBcAg—发文趋势图

HBcAg

-研究学者

  • 赵伟
  • 刘伟
  • 罗婵
  • 成军
  • 范学工
  • 陈立章
  • 刘健虎
  • 张松平
  • 杨广笑
  • 王全颖
  • 期刊论文
  • 会议论文
  • 专利文献

搜索

排序:

年份

    • 摘要: 对于以下医学检验工作者比较熟悉的常用词汇,本刊允许在论文撰写中直接使用其缩略语,可以不标注中文。磷酸盐缓冲液(PBS)白细胞介素(IL)乙型肝炎表面抗原(HBsAg)核糖核酸(RNA)肿瘤坏死因子(TNF)乙型肝炎e抗原(HBeAg)脱氧核糖核酸(DNA)干扰素(IFN)抗HBsAg抗体(抗HBs)聚合酶链反应(PCR)人类白细胞抗原(HLA)抗HBeAg抗体(抗HBe)酶联免疫吸附试验(ELISA)系统性红斑狼疮(SLE)抗HBcAg抗体(抗HBc)免疫球蛋白G(IgG)类风湿关节炎(RA)严重急性呼吸综合征(SARS)免疫球蛋白A(IgA)人类免疫缺陷病毒(HIV)红细胞(RBC)免疫球蛋白M(IgM)甲型肝炎病毒(HAV)白细胞(WBC)免疫球蛋白D(IgD)乙型肝炎病毒(HBV)血红蛋白(Hb)免疫球蛋白E(IgE)丙型肝炎病毒(HCV).
    • 陈静娜; 李婷婷; 王镇; 刘莹; 王文敬; 黎诚耀; 李林海
    • 摘要: Objective To investigate the role of mutations in C region that may contribute to occult hepatitis B virus infection.Methods C genes were amplified from two OBI blood donor samples respectively.Plasmids with mutations in C region of hepatitis B virus were constructed by overlapping PCR.HBsAg and HBeAg in Huh7 cells and in the serum of Balb/c mice were detected by CMLA.HBcAg in liver tissue was detected by immunohistochemistry,while HBV-RNA was tested by RT-PCR.Results Mutations in C region significantly reduced the expression level of HBeAg and HBcAg,but had no significant effect on HBsAg and HBV-RNA.Conclusion The mutations in C region affect the expression level of HBeAg and HBcAg,which may play an important role in the occurrence of OBI.%目的:探索乙型肝炎病毒核心蛋白区(C区)变异在隐匿性乙型肝炎病毒感染(OBI)中的作用.方法:从2例献血者OBI的样品中扩增得到C区基因构建乙型肝炎病毒C区突变型质粒,检测各突变型质粒在HuH7细胞中HBsAg和HBeAg的水平.Balb/c小鼠高压尾静脉注射突变型质粒检测其血清HBsAg和HBeAg的水平,免疫组织化学检测肝组织HBcAg的表达及分布情况,RT-PCR检测肝组织HBV-RNA的水平.结果:与野生型相比,C区突变型显著性下调HBeAg和HBcAg的表达水平,对HBsAg表达水平和HBV-RNA的水平无显著性作用.结论:OBI患者体内的乙肝病毒C区变异改变HBV病毒的HBeAg和HBcAg的表达水平,对OBI的形成具有重要作用.
    • 刘立; 刘春云; 王霖; 刘云华
    • 摘要: Objective To analyze the relationship between intrahepatic expression of HBsAg and HBcAg and the serum HBsAg and the load of HBV DNA in low-level HBsAg.To provide the basis for the diagnosis of low-level HBsAg.Methods A total of 63 patients with HBsAg lower than 1 400 IU/mL and higher than 0.05 IU/mL were enrolled in the study.All the 63 patients with low level HBsAg were collected for liver biopsy from January 2013 to December 2015.Serum HBsAg was detected by Roche cobas e601 automatic electrochemiluminescence immunoas-say system and supporting reagents.HBV DNA was detected using ROCHE automatic AmpliPrep/cobas TaqMan 48 system detector and supporting reagents.Results Among the 63 patients,the HBsAg in liver tissue was negative in 5 cases(7.94%),+in 47 cases(74.60%),++in 8 cases(12.70%),+++in 2 cases(3.17%),and++++was found in 1 case.The expression of HBcAg were negative in 30 cases(47.62%),+in 28 cases(44.44%),++in 4 cases(6.35%),+++in 1 case(1.59%),and++++in 0 cases.There was a significant positive correlation between HBsAg expression and serum HBsAg level by spearman and kendall correlation analysis(spearman analysis:r = 0.261,P=0.039;kendall analysis:r=0.217,P=0.036).HBcAg expression was significantly correlated with serum HBV DNA load with spearman and kendall correlation analysis(spearman analysis:r=0.305,P=0.015;kendall analysis:r=0.259,P=0.017).Conclusions The expression of HBsAg in liver tissue of in the patients with low level of HBsAg is positively correlated with the level of serum HBsAg,but not with the load of HBV DNA. There is significant positive correlation between HBcAg expression and serum HBV DNA load.%目的 分析低水平HBsAg患者肝组织HBsAg、HBcAg表达与血清HBsAg水平、HBV DNA载量的相关性,为低水平HBsAg患者的病情判断提供依据.方法 选取2013年1月至2015年12月HBsAg水平低于1400 IU/mL且高于0.05 IU/mL者作为研究对象,收集的63例低水平HBsAg患者均进行了肝组织活检.采用罗氏cobas e601全自动电化学发光免疫分析系统及配套试剂检测血清HBsAg,HBV DNA采用ROCHE公司全自动AmpliPrep/cobas TaqMan 48系统检测仪及配套试剂进行检测.结果63例患者中,肝组织HBsAg表达阳性例数:阴性5例(7.94%)、+有47例(74.60%)、++有8例(12.70%)、+++有2例(3.17%)、++++有1例;而其HBcAg表达阳性例数:阴性30例(47.62%)、+有28例(44.44%)、++有4例(6.35%)、+++有1例(1.59)、++++有0例.低水平HBsAg患者肝组织HBsAg表达与血清HBsAg水平通过spearman和kendall相关分析均呈显著正相关(spearman分析:r=0.261,P=0.039;kendall分析:r=0.217, P=0.036),而其与血清HBV DNA载量没有显著相关性;肝组织HBcAg表达与血清HBsAg水平无显著相关性,而与血清HBV DNA载量通过spearman和kendall相关分析均有显著正相关性(spearman分析:r =0.305,P=0.015;kendall分析:r=0.259,P=0.017).结论 低水平HBsAg患者肝组织HBsAg表达与血清HBsAg水平呈显著正相关,而与HBV DNA载量无关;肝组织HBcAg表达与血清HBV DNA载量有显著正相关性,而与血清HBsAg水平无关.
    • 吴家箴; 王丽春
    • 摘要: Objective To compare the clinical manifestation and hepatic pathology of patients with chronic hepatitis B ( CHB) with negative and positive expression of in liver tissue. And to analyze the correlation between the expression intensity of HBcAg and HBsAg in liver tissue and the activity grade of liver tissue inflammation and fibrosis stage. Methods 371 cases of liver biopsy specimens of patients with CHB were collected and stained with immunohistochemistry,and patients' age,sex,ALT,serum HB-VDNA load,liver tissue inflammation activity grade and fibrosis stage were recorded. We compared the differences in those indexes a-bove between the negative and positive groups. Results Compared with patients with positive HBsAg expression in liver tissue,the negative patients had a higher age and ALT level(P=0. 002)and a significantly lower serum HBVDNA load(P=0. 001). But there was no significant difference in the degree of activity of liver tissue inflammation and fibrosis staging between negative and positive pa-tients(P>0. 05),and there was no correlation between the expression intensity of HBsAg in liver tissue and the degree of liver in-flammation activity and fibrosis stage. The age,ALT,liver tissue inflammatory activity grading and fibrosis stage of patients with nega-tive HBcAg expression in liver tissue were higher than patients with positive HBcAg expression(P0.05),且肝组织内HBsAg表达强度与肝组织炎症活动度分级及纤维化分期无相关关系.肝组织内HBcAg表达阴性患者年龄、ALT、肝组织炎症活动度分级及纤维化分期均大于阳性患者,差异有统计学意义(P<0.05);血清HBVDNA载量显著低于阳性患者,差异有统计学意义(P=0.00);并且肝组织内HBcAg表达强度与肝组织炎症活动度分级及纤维化分期存在负相关性(r=-0.227、r=-0.247).结论肝组织内HBcAg是机体免疫攻击的主要靶抗原.肝组织内HBsAg可能不是免疫攻击的主要靶抗原,但其可能有扰乱机体对主要靶抗原的免疫攻击导致HBV不能被彻底清除的作用.
    • 朱翔; 路文明; 丁宁玲; 叶建中; 王锋; 沙莉; 李扬; 高胜兰
    • 摘要: 目的:构建截短序列和全序列HBcAg基因和HBc-HBsAg融合基因原核表达质粒,研究目的蛋白在大肠杆菌中的表达及其免疫原性。方法利用HBV全基因(adr亚型)质粒pUCmT-HBV分别扩增HBsAg截短基因、HBcAg截短基因和HBcAg全基因,构建成重组质粒pSK-HBs、pSK-HBc和pKS-HBV C,经DNA序列测定鉴定后,分别将HBcAg截短基因、HBcAg全基因及HBc-HBsAg融合基因亚克隆至表达质粒PET-30a,在大肠杆菌BL21(DE3)中进行表达HBcAg截短基因、HBcAg全基因和HBc-HBsAg融合基因产物,采用PAGE-SDS和免疫印迹法对表达产物进行鉴定。结果成功构建了含HBcAg截短基因、HBcAg全基因和HBc-HBsAg融合基因的原核表达质粒;成功构建的质粒在大肠杆菌BL21(DE3)中能大量表达HBcAg蛋白和HBc-HBsAg融合蛋白,免疫印迹分析结果显示表达产物具有免疫原性。结论成功构建的原核表达载体在大肠杆菌BL21(DE3)中能顺利表达HBcAg蛋白和HBc-HBsAg融合蛋白,表达产物具有免疫原性,为慢性乙型肝炎特异性免疫治疗研究提供了实验基础。%Objective To construct the prokaryotic recombinant plasmids carring truncated HBcAg gene, whole-length HBcAg gene and HBc-HBsAg fusion gene,and to observe the expression of target proteins in E.coli and their immunogenicity in vitro. Methods Truncated HBcAg gene,whole-length HBcAg gene and HBc-HBsAg fusion gene were obtained from plasmid pUCmT-HBV containing whole-length HBV gene (subtype adr)and con-struct recombinant plasmids of pSK-HBs,pSK-HBc and pKS-HBV C. Truncated HBcAg gene,whole-length HBcAg gene and HBc-HBsAg fusion gene which were obtained by fusing truncated HBsAg and truncated HBcAg gene,were subcloned into a expression vector pET-30a respectively after confirmed by DNA sequencing. The gene products were expressed in E.coli BL21 (DE3) and identified by SDS-PAGE and Western blot. Results The prokaryotic expression plasmids expressing truncated HBcAg gene,whole-length HBcAg gene and HBc-HBsAg fu-sion gene were successfully constructed. High levels of HBcAg protein and HBc-HBsAg fusion protein were ob-served in E.coli BL21 (DE3) and their immunogenicity were confirmed by Western blot. Conclusion HBcAg protein and HBc-HBsAg fusion protein are successfully obtained by selected expressing vector in E.coli BL21 (DE3) and the gene products have immunogenicity. This study has provided an experimental basis for specific immunotherapy for chronic hepatitis B.
    • 袁淑芳; 张跃新; 沙尼亚·尼亚孜
    • 摘要: 目的:检测细胞间黏附分子-1(ICAM-1)在慢性乙型肝炎患者的表达与病毒复制、肝组织炎症及纤维化程度的关系。方法:采用免疫组织化学方法检测66例慢性乙型病毒性肝炎患者和10例非肝病对照者肝组织中ICAM-1、HBcAg表达的情况。结果:慢性乙型肝炎患者肝组织中ICAM-1的表达水平均高于正常肝组织(P<0.05);慢性乙型肝炎患者中HBcAg阳性者ICAM-1蛋白阳性表达率为89.4%,明显高于HBcAg阴性者42.1%(P<0.01);随着慢性乙型肝炎病理损伤的程度的加重,ICAM-1蛋白的阳性表达率逐渐增高(P<0.01)。结论:ICAM-1参与了慢性乙型肝炎的病理损伤机制;ICAM-1可反映肝炎活动及肝组织损害程度。
    • 汪晶冰; 王成英; 王维平
    • 摘要: 目的:探讨乙型肝炎病毒核心抗原检测方法及临床应用。方法:收集34例门诊及住院病例。结果34例血清标本HBsAg阳性21例(61.76%)。HBsAg阴性13例(38.24%)。结论:为了有效预防乙型肝炎的传播,有必要对HBcAg进行检测,对了解病毒感染过程及病毒复制具有重要意义。
    • 宋琳琳; 卓萌; 唐余燕; 陈小华; 余永胜; 汤正好; 臧国庆
    • 摘要: 目的 构建CTP-Ub-HBcAg原核表达载体并诱导和鉴定其融合蛋白的表达.方法 以质粒pcDNA3.1(-)-Ub-HBcAg中的Ub-HBcAg融合基因为模板设计引物,上游引物带有CTP基因序列,进行PCR扩增,PCR产物克隆到原核表达质粒pMAL-c2x中,菌落PCR阳性克隆测序鉴定,鉴定正确的质粒转化大肠杆菌BL21(DE3)诱导表达,并进一步通过直链淀粉树脂亲和层析法纯化融合蛋白,Western blotting鉴定.结果 PCR扩增得到820 bp大小的条带,为CTP-Ub-HBcAg融合序列.该序列被克隆至表达质粒pMAL-c2x中,阳性克隆菌落测序正确,并在DE3中获得诱导表达.Western blotting鉴定为70 KD的CTP-Ub-HBcA融合蛋白.结论 构建CTP-Ub-HBcAg原核表达载体并成功表达,为进一步研究该融合蛋白的功能提供了实验基础.
  • 查看更多

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号