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find Keyword "乙型肝炎病毒" 39 results
  • Advanced Research of Association of HBV with Spontaneous Rupture of Hepatocellular Carcinoma

    Objective To study the relationship of hepatitis B virus (HBV) to spontaneous rupture of hepatocellular carcinoma (HCC-SR) and its mechanism. Method The related literatures about theory of HCC-SR were consulted and reviewed. Results The injury of small arteries was usually followed in patients with HCC-SR, which was related to vascular autoimmune injury caused by the HBV infection. The small arteries in which immune complex deposited were readily injured, as a result HCC-SR happened while vascular load increased. Conclusion The HBV infection resulted in vascular autoimmune injury maybe a important factor in the pathogenesis of HCC-SR.

    Release date:2016-09-08 10:23 Export PDF Favorites Scan
  • Research progress of biomarkers of hepatitis B virus and clinical significance

    The infection of Hepatitis B virus (HBV) can result in severe consequences, including chronic hepatitis, liver fibrosis, cirrhosis, and even liver cancer. Effective antiviral treatment has the potential to slow down the progression of the disease. HBV serum biomarkers play a crucial role in the dynamic management of chronic hepatitis B (CHB) patients. However, the conventional hepatitis B virus markers, such as hepatitis B serologic testing and HBV DNA, are insufficient to meet the clinical requirements. This review provided a comprehensive overview of the current research on the quantification of HBsAg and anti-HBc, HBV RNA and HBV core-associated antigen, which summarized the crucial role these markers play in the administration of antiviral medications, predicting the efficacy of treatment and anticipating the likelihood of virologic rebound following drug cessation, as well as assessing disease progression in CHB patients.

    Release date:2023-12-21 03:53 Export PDF Favorites Scan
  • The Correlation of Hepatocellular Carcinoma and Different Hepatitis B Virus Genotypes with Spontaneous YMDD Mutation

    ObjectiveTo investigate the correlation of spontaneous YMDD mutation in different hepatitis B virus (HBV) genotypes with HBV-related hepatocellular carcinoma (HCC). MethodFrom May 2010 to May 2012, 110 HBV-related hepatocellular cancer patients not treated by anti-virus drugs and 1 079 chronic HBV infectors (including asymptomatic HBV carriers, chronic hepatitis B patients, and HBV-related liver cirrhosis patients) were included in our study. HBV YMDD mutation was detected by fluorescence hybridization bioprobe polymerase chain reaction (PCR) and melting curve assay using Diagnosis Kit for HBV YMDD Mutation (Qiagen Biotechnology). Serum HBV genotype was detected by real time PCR using genotype specific TaqMan probe. According to data type, t-test, χ2-test and unconditional logistic regression were used for statistical analysis. ResultsIn the HCC group, genotype C virus, spontaneous YMDD mutation and genotype C virus with YMDD mutation were detected in 39 patients (35.5%), 16 patients (14.5%) and 14 patients (12.7%), respectively. In the chronic HBV infection group, HBV genotype C virus, spontaneous YMDD mutation and genotype C virus with YMDD mutation were detected in 153 patients (14.2%), 46 patients (4.3%) and 17 patients (1.6%), respectively. The difference between the two groups were statistically significant (χ2=33.368, P<0.001; χ2=21.353, P<0.001; χ2=48.889, P<0.001). Unconditional logistic regression analysis suggested that infection of genotype C virus and genotype C virus with spontaneous YMDD mutation might be important risk factors for the development of HCC[OR=2.943, 95%CI (1.778, 4.872), P<0.001; OR=5.989, 95%CI (2.394, 14.980), P<0.001]. ConclusionsInfection of genotype C virus with spontaneous YMDD mutation is tightly related with the occurrence of HCC and has important value for earlier warning of HCC.

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  • 重组聚合酶链反应扩增乙型肝炎病毒跨直接重复序列区DNA片段方法的建立

    目的建立使用重组聚合酶链反应(PCR)扩增乙型肝炎病毒(HBV)跨直接重复序列(DR)区DNA 片段的方法。 方法使用Primer5 引物设计软件,以黏性末端为基础设计引物,HBV“大三阳”乙型肝炎表面抗原(+)、乙型肝炎核心抗体(+)、乙型肝炎e 抗原HBeAg(+)] 血清提取DNA 为PCR 模板,第1 轮PCR 分段扩增,第2 轮PCR 以粘性末端为引物两端补齐,第3 轮PCR 扩增整段HBV 跨DR 区DNA 片段。 结果成功重组出HBV跨DR 区缺口的DNA 片段。 结论建立了HBV 跨DR 区DNA 片段的扩增方法,为该段DNA 片段功能的研究打下了基础。

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  • 荧光定量聚合酶链反应检测法诊断新生儿乙型肝炎病毒感染的卫生经济学评价

    目的 探讨采用荧光定量聚合酶链反应(FQ-PCR)检测法诊断新生儿乙型肝炎病毒(HBV)感染的经济学成本。 方法 对2010年3月-2010年7月间202例日龄在28 d以内的新生儿采用酶联免疫吸附法检测HBV血清学标志物,对于HBV血清学标志物中除乙型肝炎表面抗原外其余任何一项或一项以上阳性的新生儿采用FQ-PCR检测其血清HBV-DNA的含量,并分析确诊1例HBV感染病例的费用。 结果 血清HBV-DNA水平与HBV标志物表现模式有关,乙型肝炎e抗原(HBeAg)阳性的新生儿,FQ-PCR阳性率为3/16 (18.8%)。HBeAg阴性之新生儿,FQ-PCR阳性率为1/186(5.4‰)。HBeAg阳性病例为进一步明确乙型肝炎病毒含量而进行FQ-PCR检测所产生的费用为587元/例,HBeAg阴性者为20 460元/例。 结论 FQ-PCR确诊HBeAg阳性的新生儿为HBV感染的费用-效益比远高于HBeAg阴性的新生儿,对于HBeAg阴性的新生儿该法不适合大规模的流行病学诊断性研究。

    Release date:2016-09-07 02:34 Export PDF Favorites Scan
  • Prevention of HBV Reinfection in Perioperative Period of Liver Transplantation

    Objective To investigate the prevention of HBV reinfection in the perioperative period of liver transplantation on HBV-related diseases. Methods Published papers were collected and reviewed. Results HBV-related diseases were the main indications of liver transplantation.The prevention for HBV reinfection affects the survivals remarkably. Nowadays, a lot of medication have been used in the prevention of HBV reinfection, and the therapeutic regimens were different from each other. Conclusion Liver transplantation is an effective treatment for HBV-related disease. Appropriate prevention of HBV reinfection in the perioperative period of liver transplantation is important for the survivals of patients.

    Release date:2016-08-28 04:08 Export PDF Favorites Scan
  • Efficacy of Antiviral Drugs for Hepatitis B with YMDD Motif Variant: A Systematic Review

    Objective To evaluate the efficacy and safety of antiviral drugs for hepatitis B with YMDD motif variant. Methods We electronically searched MEDLINE (1989-April, 2004), EMBASE (1989-April, 2004), CBMdisc (expand) (1989-April, 2004), and handsearched unpublished Chinese conference proceedings. Randomized and quasi-randomized trials in patients with chronic hepatitis B with YMDD motif variant correlative to lamivudine were collected. Two reviewers extracted the data and assessed the quality of literature independently. The data were then analyzed by RevMan 4.2 software. Results Five studies involving 6 trials and 284 patients were included. According to the results of meta-analysis, antiviral therapy with adefovir plus lamivudine showed significantly better effects on the clearance of serum HBV-DNA and HBeAg and normalization of ALT than that of lamivudine alone (RR 16.61, 95%CI 2.29 to 120.71; RR 6.66, 95%CI 1.23 to 35.88 and RR 6.26, 95%CI 2.29 to 17.12 respectively); also, oxymatrine plus thymothin showed obviously better effects on the clearance of serum HBV-DNA and HBeAg (RR 2.96, 95%CI 1.26 to 6.93 and RR 2.51, 95%CI 1.05 to 5.98 respectively).But adefovir alone showed no better effects on clearance of serum HBV-DNA and HBeAg than that of lamivudine alone (RR 11.00, 95%CI 0.65 to 186.02 and RR 7.00, 95%CI 0.39 to 126.92 respectively); interferon plus lamivudine showed no better effects on the clearance of serum HBV-DNA, HBeAg and the normalization of ALT (RR 3.50, 95%CI 0.90 to 13.58; RR 4.90, 95%CI 0.70 to 35.10 and RR 2.80, 95%CI 0.91 to 8.12 respectively). Chinese herbs plus lamivudine showed no better effects on the clearance of serum HBV-DNA (RR 1.16, 95%CI 0.89 to 1.51). There were no significant side effects in the groups, except flu like symptom in the interferon group, slight kidney impairment in the adefovir group, and aggravation of rare cases in lamivudine group. Conclusions Antiviral therapy with adefovir plus lamivudine, or oxymatrine plus thymothin, shows better effects than with lamivudine alone in terms of antiviral therapy and clinical outcome improvement. However, the evidence is too weak to draw a definite conclusion in this systematic review. Larger sample size and rigorously designed randomized, double blind, placebo control trials are required for future study.

    Release date:2016-09-07 02:27 Export PDF Favorites Scan
  • 乙型肝炎病毒X蛋白的研究进展

    乙型肝炎病毒(HBV)慢性持续感染与肝细胞癌(HCC)的发生密切相关。由HBV X基因编码的X蛋白(HBx)是一个多功能蛋白,可通过反式激活和蛋白相互作用持续调控病毒的生活周期和宿主细胞的代谢,最终导致肝细胞癌变。因此,近年来对于HBx在病毒复制和致HCC中的作用机制成为研究热点。

    Release date:2016-09-07 02:34 Export PDF Favorites Scan
  • Screening of Hepatitis B Virus Infection before Chemotherapy for Patients with Lymphoma

    ObjectiveTo analyze the influencing factors for hepatitis B virus (HBV) infection screening in lymphoma patients prior to chemotherapy with a focus on HBV reactivation after chemotherapy. MethodsThe HBV infection screening data of 449 patients with lymphoma treated by chemotherapy between June 2010 and July 2012 were analyzed retrospectively. ResultsAmong the 449 patients, 387 (86.2%) were screened for HBV before initiation of chemotherapy, and patients with elevated aminotransferase levels were more likely to receive pre-chemotherapy HBV testing (OR=2.509, P=0.040). HBV reactivation was observed in 16.1% (9/56) of the HBsAg-positive patients after chemotherapy, and it was more likely to occur in patients with the use of rituximab (29.2% vs. 6.3%; P=0.030). Prophylactic antiviral therapy can significantly reduce the incidence of chemotherapy-induced HBV reactivation (12.0% vs. 50.0%; P=0.046). Two cases of reactivation occurred in patients who were HBsAg negative and hepatitis B core antibody positive. ConclusionHBV reactivation, especially for people with the use of rituximab, is a common complication in patients with HBV infection. HBV infection testing should be considered for lymphoma patients who were planned for chemotherapy. Prophylactic antiviral therapy can greatly decrease the incidence of HBV reactivation.

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  • A Seroepidemiologic Study on Hepatitis B among Population of Health Examination in Chengdu

    目的:探讨成都市健康体检人群乙型肝炎病毒血清流行病学状况,并为乙型病毒性肝炎防治提供可靠依据。方法:收集2007年6月至2007年12月成都市体检人群共计10112人,分别统计年龄、性别、乙型肝炎“两对半”结果和肝功能。结果:成都市健康体检人群HBsAg阳性率为4.62%,男性和女性HBsAg阳性率分别为6.0%和2.96%,男性明显高于女性;乙型肝炎病毒感染者中HBeAg阳性和HBeAg阴性分别占16.1%和83.9%;抗HBs阳性率为56.94%,乙型肝炎标志物全阴为36.17%。结论:成都市健康体检人群HBsAg阳性率明显低于全国平均水平;乙型肝炎病毒感染者中HBeAg阴性占83.9%。

    Release date:2016-09-08 09:54 Export PDF Favorites Scan
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