Abstract:
BACKGROUND & AIMS:Hepatitis B e antigen (HBeAg) seroconversion is an important clinical and virological "landmark" during chronic hepatitis B virus (HBV) infection. Mutant viruses carrying the precore G1896A and/or the basal core promoter (BCP) A1762T/G1764A mutations are associated with HBeAg seroconversion. However, the exact role of these mutants in HBeAg seroconversion remains unclear, partly because the evolution of these mutant viruses before and after seroconversion has not been well studied. METHODS:Using our novel mutant quantification methods, the percentage of the mutant viruses was analyzed both cross-sectionally and longitudinally, before and after seroconversion. RESULTS:Cross-sectional analysis showed that the percentage of both precore and BCP mutants gradually increased with age in the HBeAg-positive population. Follow-up of 18 HBeAg-positive patients revealed that the mutant percentage may stay low and stable for many years, followed by a steady increase in the percentage of G1896A and/or A1762T/G1764A mutants, from <10% to 50-100%, within about 3 years prior to seroconversion. In all cases, increase of mutant percentage was preceded or accompanied by elevated serum alanine aminotransferase. After the seroconversion, the mutant percentage could remain high or decrease significantly, sometimes to below 20%. CONCLUSIONS:Levels of G1896A and A1762T/G1764A mutants (of genotypes B and C) in the HBeAg-positive patients may predict the time of HBeAg seroconversion. The dominance of these mutants in the HBeAg-positive phase is more likely the result of immune selection rather than the enhanced replication capability of the mutants. However, anti-HBe antibody may not be a major selection force for these mutants.
journal_name
J Hepatoljournal_title
Journal of hepatologyauthors
Nie H,Evans AA,London WT,Block TM,Ren XDdoi
10.1016/j.jhep.2011.11.012subject
Has Abstractpub_date
2012-04-01 00:00:00pages
795-802issue
4eissn
0168-8278issn
1600-0641pii
S0168-8278(11)00863-4journal_volume
56pub_type
杂志文章abstract::In this paper, we studied the usefulness of polymerase chain reaction (PCR) in HDV-RNA detection. Using serial dilutions of serum samples of known concentrations of HDV-RNA, PCR was 10,000-times more sensitive than slot-blot hybridization. PCR was used for the detection of HDV-RNA in 33 serum samples negative to HDV-R...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(90)90225-g
更新日期:1990-11-01 00:00:00
abstract:BACKGROUND/AIMS:The oral administration of the major transplant immunosuppressants cyclosporine A and tacrolimus leads to unpredictable drug levels requiring drug monitoring. Hepatic and extrahepatic metabolism of cyclosporine A and tacrolimus by cytochrome P450 proteins has been analyzed but metabolism and inactivatio...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(01)00040-x
更新日期:2001-06-01 00:00:00
abstract::Chronic hepatitis C is common in Saudi Arabia and most often presents in an advanced stage. To assess the response of patients to interferon, a randomized placebo-controlled double-blind study was undertaken. All but 1 patient had cirrhosis or fibrosis before interferon. After a 24-week observation period patients rec...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0168-8278(05)80552-5
更新日期:1993-11-01 00:00:00
abstract:BACKGROUND/AIMS:Interleukin-15 (IL-15) is expressed in many organs. It generally inhibits apoptosis and increases cellular proliferation and differentiation. However, IL-15's roles in liver are unknown. We aimed to determine if IL-15 influences hepatic integrity and regenerative activity. METHODS:Expression of IL-15 a...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2006.04.008
更新日期:2006-09-01 00:00:00
abstract:BACKGROUND:Hepatopulmonary syndrome (HPS) has been defined as a clinical triad, including chronic liver disease, gas exchange defects (increased alveolar-arterial PO2 difference irrespective of the presence of arterial hypoxemia), and widespread intrapulmonary vascular dilatations. We determined the incidence and the c...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(00)00108-2
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND/AIMS:Apoptosis of bile duct cells occurs in hepatic allografts and is correlated with acute rejection. bcl-2 protein counteracts apoptosis and prolongs cell survival. We therefore tested the expression of bcl-2 protein in bile ducts of liver grafts in comparison with those of liver cirrhosis. METHODS:115 bi...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(97)80418-7
更新日期:1997-03-01 00:00:00
abstract:BACKGROUND/AIMS:The kinetics of omeprazole and its primary metabolites 5'-hydroxyomeprazole and omeprazole sulfone were studied in healthy volunteers to evaluate omeprazole as a probe drug for the S-mephenytoin hydroxylase (CYP2C19) polymorphism. The plasma metabolic ratio obtained from the concentrations of omeprazole...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND & AIMS:Hepatocytes differentiated from human embryonic stem cells (hESCs) have the potential to overcome the shortage of primary hepatocytes for clinical use and drug development. Many strategies for this process have been reported, but the functionality of the resulting cells is incomplete. We hypothesize t...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2016.02.028
更新日期:2016-06-01 00:00:00
abstract:BACKGROUND/AIMS:Hormone replacement therapy (HRT) prevents osteoporosis in postmenopausal women by inhibiting bone resorption, but the benefits of oestrogen therapy in liver transplant patients have not been studied. METHODS:The effect of transdermal HRT was studied in 33 postmenopausal liver transplant women. The mai...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章
doi:10.1016/s0168-8278(00)00067-2
更新日期:2001-02-01 00:00:00
abstract:BACKGROUND/AIMS:Patients with cholestatic liver disease have 'low-turnover' osteoporosis. Since we reported that bile-duct ligated (BDL) rats develop bone disease with low bone formation and mass, we examined whether their reduced bone mass results in skeletal fragility, and whether the reduction in osteoprogenitor cel...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2003.11.032
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND & AIMS:To determine whether amino acid mutations in the core region of hepatitis C virus (HCV) genotype 1 are associated with response to interferon (IFN) therapy and development of hepatocellular carcinoma (HCC). METHODS:We followed up 361 patients (median duration, 121 months), and IFN monotherapy was adm...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2009.10.001
更新日期:2010-01-01 00:00:00
abstract::Hepatitis B virus (HBV) contributes to hepatocellular carcinoma (HCC) development through direct and indirect mechanisms. HBV DNA integration into the host genome occurs at early steps of clonal tumor expansion and induces both genomic instability and direct insertional mutagenesis of diverse cancer-related genes. Pro...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2016.02.021
更新日期:2016-04-01 00:00:00
abstract:BACKGROUND/AIMS:The aim of this study was to identify human liver proteins that are associated with different stages of liver development. METHODS:We collected liver samples from 14 fetuses between 14 and 41 weeks of development, one child and four adults. Proteins which exhibited consistent and significant variations...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2009.02.029
更新日期:2009-07-01 00:00:00
abstract::A quantitative immunohistochemical study of Kupffer cells in liver biopsies from alcoholics was carried out. Two markers were compared, lysozyme and an antimacrophage monoclonal antibody EMB/11. The results showed that there is no significant reduction in Kupffer cell numbers in acute and chronic alcoholic liver disea...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(89)90005-6
更新日期:1989-03-01 00:00:00
abstract::The interaction between fat-storing cells (FSCs) and Kupffer cells (KCs) in vitro has been studied in an attempt to clarify certain aspects of the pathogenesis of fibrotic process in the liver. FSCs and KCs were isolated from the livers of rats either treated with CCl4 for 6 weeks, or with vitamin A for 6 weeks or fro...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(86)80481-0
更新日期:1986-01-01 00:00:00
abstract::The reversibility and time course of the adaptive changes in hepatic bile salt transport related to modifications of the bile salt enterohepatic circulation and bile salt pool size have not been previously studied. For this reason a model of reversible interruption of entero-hepatic circulation was characterized in un...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(05)80182-5
更新日期:1993-08-01 00:00:00
abstract:BACKGROUND/AIMS:Primary sclerosing cholangitis (PSC) is a cholestatic liver disease of unknown etiology. Although the primary defect affects cholangiocytes, cholestatic injury of hepatocytes may promote further liver damage. Since down-regulation of hepatocellular organic anion transporters is implicated in the molecul...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(02)00052-1
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND/AIMS:Osteopenia is a common complication in some chronic cholestatic liver diseases. Our aims were to determine the prevalence and severity of bone disease in patients with primary sclerosing cholangitis; and identify risk factors to predict the presence and progression of osteopenia. METHODS:Eighty-one pat...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0168-8278(98)80253-5
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND/AIMS:A recently identified DNA virus, termed TT virus (TTV), has been associated with post-transfusional hepatitis, and a high prevalence of TTV infection in patients with acute or chronic liver disease of unknown etiology has been reported from Japan, but few data are available about TTV infection in other ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(99)80256-6
更新日期:1999-06-01 00:00:00
abstract::Hepatitis viruses are major threats to human health. During the last decade, highly diverse viruses related to human hepatitis viruses were found in animals other than primates. Herein, we describe both surprising conservation and striking differences of the unique biological properties and infection patterns of human...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2018.11.010
更新日期:2019-03-01 00:00:00
abstract:AIMS/METHODS:Bile acid kinetics and biliary lipid composition were studied in seven patients, aged 17-70 years with cystic fibrosis. All patients were of normal height and weight, and were in good clinical condition. Ultrasonography indicated a small gallbladder in one and non-visualized gallbladder in two patients. Se...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(96)80326-6
更新日期:1996-07-01 00:00:00
abstract::Hepatitis B virus (HBV) variants with a stop codon, a mutated translation initiation codon or other mutations in the pre-C region which prevent e-antigen expression are highly prevalent in anti-HBe chronic carriers and can be positively selected from a mixed virus infection. Our laboratories recently described pre-C v...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(91)90083-n
更新日期:1991-11-01 00:00:00
abstract:BACKGROUND/AIMS:Modifications of the Child-Pugh classification of liver cirrhosis by incorporation of hyaluronan were tested to improve the prognostic power for long term evaluation of liver cirrhosis in 126 patients observed over a period of 10 years. METHODS:Serum concentrations of HA were determined at study entry....
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(03)00431-8
更新日期:2003-12-01 00:00:00
abstract:BACKGROUND/AIMS:Recently, a novel DNA virus was isolated from the serum of a patient with post-transfusion non-A-G hepatitis and named TT virus. The aim of this study was to determine the prevalence and clinical characteristics of TT virus infection in patients with sporadic acute hepatitis of unknown etiology. METHOD...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(99)80309-2
更新日期:1999-12-01 00:00:00
abstract::Since the first tests for antibodies to components of the hepatitis C virus became widely available there has been considerable interest in evidence linking HCV infection with autoimmune liver diseases and other autoimmune conditions. With respect to autoimmune hepatitis, it is now clear that the early tests were quit...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:
更新日期:1996-01-01 00:00:00
abstract::For the manufacture of a bioartificial liver for human application, large amounts of viable and active hepatocytes are needed. Pig hepatocytes are considered to be the best alternative to scarce human hepatocytes. In vitro hepatocyte functions have so far been tested under different circumstances, mainly with rat hepa...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(95)80333-5
更新日期:1995-08-01 00:00:00
abstract::Two to three percent of the world's population is chronically infected with hepatitis C virus (HCV) and thus at risk of developing liver cancer. Although precise mechanisms regulating HCV entry into hepatic cells are still unknown, several cell surface proteins have been identified as entry factors for this virus. Amo...
journal_title:Journal of hepatology
pub_type: 评论,杂志文章
doi:10.1016/j.jhep.2008.10.009
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND/AIMS:Selective cyclooxygenase (COX)-2 inhibitors do not adversely affect renal function in experimental cirrhosis. In the current study, we investigated the molecular mechanisms underlying the effects of the selective COX-2 inhibitor, celecoxib, and assessed the influence of albumin on its actions. METHODS:...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2004.09.011
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND/AIMS:Norfloxacin is useful to prevent infections in hospitalized cirrhotic patients with low ascitic fluid protein concentrations. It is also effective in preventing the recurrence of spontaneous bacterial peritonitis. The aim of our study was to determine the efficacy of norfloxacin in the primary prophylax...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0168-8278(98)80061-5
更新日期:1998-09-01 00:00:00
abstract:BACKGROUND & AIMS:Liver transplantation is a recognized treatment for selected patients with hepatocellular carcinoma (HCC), but transplant criteria still need to be refined, especially in the case of more advanced or downstaged tumors. METHODS:The present study investigated alpha-fetoprotein (AFP) as a predictor of o...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2010.12.040
更新日期:2011-10-01 00:00:00