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《医学前沿(英文)》 2017年 第11卷 第4期 页码 502-508 doi: 10.1007/s11684-017-0590-z
Although the efficacy of nucleos(t)ide analogue (NA) has been confirmed for treatment of chronic hepatitis B, long-term therapy has been recommended due to the high frequency of off-therapy viral DNA rebound and disease relapse. In this review, the RNA virion-like particles of hepatitis B virus (HBV) are integrated into the life cycle of HBV replication, and the potential significance of serum HBV RNA is systematically described. The production of HBV RNA virion-like particles should not be blocked by NA; in this regard, serum HBV RNA is found to be a suitable surrogate marker for the activity of intrahepatic covalently closed circular DNA (cccDNA), particularly among patients receiving NA therapy. Therefore, the concept of virological response is redefined as persistent loss of serum HBV DNA and HBV RNA. In contrast to hepatitis B surface antigen (HBsAg) that can originate from either the cccDNA or the integrated HBV DNA fragment, serum HBV RNA, with pregenomic RNA origination, can only be transcribed from cccDNA. Therefore, the loss of serum HBV RNA would likely be a promising predicator for safe drug discontinuation. The clinical status of consistent loss of serum HBV RNA accompanied with low serum HBsAg levels might be implicated as a “para-functional cure,” a status nearly close to the functional cure of chronic hepatitis B, to distinguish the “functional cure” characterized as serum HBsAg loss with or without anti-HBs seroconversion.
关键词: chronic hepatitis B serum HBV RNA nucleos(t)ide analogs virological response para-functional cure
Impact of HBV replication in peripheral blood mononuclear cell on HBV intrauterine transmission
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《医学前沿(英文)》 2017年 第11卷 第4期 页码 548-553 doi: 10.1007/s11684-017-0597-5
This study determined the effect of hepatitis B virus (HBV) replication in peripheral blood mononuclear cell (PBMC) from HBsAg-positive mothers on HBV intrauterine transmission. A total of 150 HBsAg-positive mothers and their neonates were recruited in this study. Within 24 h after birth, HBV serological markers, serum HBV DNA, PBMC HBV relaxed circular DNA (rcDNA), and covalently closed circular DNA (cccDNA) were measured in the HBsAg-positive mothers and their neonates before passive-active immune prophylaxis. The relationship between HBV replication in PBMC and HBV intrauterine transmission was examined through Chi-square test and logistic regression. The rate of HBV intrauterine transmission was 8.00% (12/150) in the 150 neonates born to HBsAg-positive mothers. The positivities of PBMC HBV rcDNA and cccDNA in the HBsAg-positive mothers were 36.67% (55/150) and 10% (15/150), respectively. Maternal PBMC HBV cccDNA was a risk factor of HBV intrauterine transmission (OR= 6.003, 95% CI: 1.249–28.855). Maternal serum HBeAg was a risk factor of PBMC HBV rcDNA (OR= 3.896, 95% CI: 1.929–7.876) and PBMC HBV cccDNA (OR= 3.74, 95% CI: 1.186–11.793) in the HBsAg-positive mothers. Administration of hepatitis B immune globulin was a protective factor of PBMC HBV cccDNA (OR= 0.312, 95% CI: 0.102–0.954) during pregnancy. The positivity of PBMC HBV rcDNA was related to that of cccDNA in the HBsAg-positive mothers (c2=5.087, P= 0.024). This study suggests that PBMC is a reservoir of HBV and an extrahepatic site for virus replication and plays a critical role in HBV intrauterine transmission.
关键词: PBMC HBV cccDNA HBV rcDNA HBV intrauterine transmission
Current recommendations of managing HBV infection in preconception or pregnancy
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《医学前沿(英文)》 2014年 第8卷 第2期 页码 158-165 doi: 10.1007/s11684-014-0340-4
Hepatitis B remains a leading cause of cirrhosis, hepatocellular carcinoma and liver transplantation worldwide. Management of chronic hepatitis B during pregnancy is challenging. Transmission of hepatitis B to infants still occurs perinatally although immunoprophylaxis is widely available for infants born to mothers with chronic hepatitis B infection. The emerging data suggest that initiation of antiviral therapy in the beginning of the third trimester in highly viremic mothers can prevent immunoprophylaxis failure in their infants. The available drug safety data show that lamivudine, telbivudine and tenofovir are generally safe to be used during the pregnancy. In order to minimize the fetal exposure to the antiviral medication, antiviral therapy during the pregnancy should be limited to a selected group of patients with cirrhosis, high hepatitis B viral load, or prior history immunoprophylaxis failure. An elective Caesarean section may reduce the risk of perinatal transmission. For those females planning for pregnancy or in early stage of pregnancy, communication and follow-up among obstetrician, gastroenterologist, and primary care physician are important. In this article, we will review the features of hepatitis B infection before, during and after the pregnancy; the risk factors that increase mother-to-child transmission; safety data on antiviral drug use during pregnancy; and the potential role of Caesarean section in selected cases.
关键词: antiviral therapy Caesarean section cirrhosis hepatitis B immunoprophylaxis mother-to-child transmission pregnancy prevention
Ribozyme and the mechanisms that underlie RNA catalysis
Timothy J. Wilson,Yijin Liu,David M. J. Lilley
《化学科学与工程前沿(英文)》 2016年 第10卷 第2期 页码 178-185 doi: 10.1007/s11705-016-1558-2
New perspective on the natural course of chronic HBV infection
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《医学前沿(英文)》 2014年 第8卷 第2期 页码 129-134 doi: 10.1007/s11684-014-0339-x
Chronic hepatitis B virus (HBV) infection is a significant threat to public health and an enormous burden on society. Mechanisms responsible for chronic HBV infection remain poorly understood. A better understanding of the natural course of chronic HBV infection may shed new light on the mechanisms underlying this disease and help in designing new antiviral strategies. Natural course of chronic HBV infection is conventionally viewed as an uninterrupted process that is usually marked by HBV e antigen (HBeAg) seroconversion or characterized by different phases associated with assumed host responses to HBV infection. However, none of these descriptions captures or highlights the core events that determine the natural course of chronic HBV infection. In this review, we briefly present the current knowledge on this subject and explain the significance and implication of events that occur during infection. A pre-core mutant becomes predominant in the viral population following elimination of the wild-type virus in duck hepatitis B virus-chronically infected animals. The coupled events in which first there is viral clearance that clears wild-type virus and then there is the reinfection of wild-type virus cleared livers with mutant virus are highly relevant to understanding of the natural course of chronic HBV infection under both treated and untreated conditions. In our new perspective, a general natural course of chronic HBV infection comprises cycles of viral clearance and reinfection, and such cycles prolong the chronic HBV infection course. Reviewing published data on the natural course of chronic HBV infection can reduce the possibility of missing important points in the initial data interpretation.
关键词: hepatitis B virus chronic HBV infection natural course hepatitis B seroconversion
Eliminating mother-to-child transmission of HBV: progress and challenges in China
Wenzhan Jing, Jue Liu, Min Liu
《医学前沿(英文)》 2020年 第14卷 第1期 页码 21-29 doi: 10.1007/s11684-020-0744-2
关键词: hepatitis B virus mother-to-child transmission progress challenge
基于RNA的生物防治——一种作物保护新模式 Review
Matthew Bramlett, Geert Plaetinck, Peter Maienfisch
《工程(英文)》 2020年 第6卷 第5期 页码 522-527 doi: 10.1016/j.eng.2019.09.008
关键词: 基于RNA的生物防治 RNA干扰(RNAi) 科罗拉多马铃薯甲虫(CPB) 玉米根虫(CRW) 大豆臭虫(SSB)
Blockage of receptor-interacting protein 2 expression by small interfering RNA in murine macrophages
LIU Hongchun, CAO Zhongwei, JIN Jianjun, WANG Jiyao
《医学前沿(英文)》 2008年 第2卷 第2期 页码 166-170 doi: 10.1007/s11684-008-0030-1
Effect of renal function and hemodialysis on the serum tumor markers in patients with chronic kidney
YU Xiaofang, XU Xialian, YE Zhibin
《医学前沿(英文)》 2007年 第1卷 第3期 页码 308-311 doi: 10.1007/s11684-007-0059-6
Xuefei Ma, Wei Zhang, Rong Zhang, Jingming Li, Shufen Li, Yunlin Ma, Wen Jin, Kankan Wang
《医学前沿(英文)》 2019年 第13卷 第3期 页码 330-343 doi: 10.1007/s11684-017-0557-0
Direct acting antiviral-induced dynamic reduction of serum
Tung Huynh, Ke-Qin Hu
《医学前沿(英文)》 2019年 第13卷 第6期 页码 658-666 doi: 10.1007/s11684-019-0707-7
关键词: chronic hepatitis C α fetoprotein direct acting antiviral treatment cirrhosis
《医学前沿(英文)》 2022年 第16卷 第3期 页码 378-388 doi: 10.1007/s11684-021-0840-y
关键词: severe Mycoplasma pneumoniae pneumonia children proteomics Fc fragment of the IgG-binding protein mechanistic target of rapamycin kinase inhibitor
标题 作者 时间 类型 操作
Potential use of serum HBV RNA in antiviral therapy for chronic hepatitis B in the era of nucleos(t)ide
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期刊论文
Impact of HBV replication in peripheral blood mononuclear cell on HBV intrauterine transmission
null
期刊论文
Ribozyme and the mechanisms that underlie RNA catalysis
Timothy J. Wilson,Yijin Liu,David M. J. Lilley
期刊论文
Eliminating mother-to-child transmission of HBV: progress and challenges in China
Wenzhan Jing, Jue Liu, Min Liu
期刊论文
Blockage of receptor-interacting protein 2 expression by small interfering RNA in murine macrophages
LIU Hongchun, CAO Zhongwei, JIN Jianjun, WANG Jiyao
期刊论文
Effect of renal function and hemodialysis on the serum tumor markers in patients with chronic kidney
YU Xiaofang, XU Xialian, YE Zhibin
期刊论文
Overexpressed long noncoding RNA CRNDE with distinct alternatively spliced isoforms in multiple cancers
Xuefei Ma, Wei Zhang, Rong Zhang, Jingming Li, Shufen Li, Yunlin Ma, Wen Jin, Kankan Wang
期刊论文