Abstract:
BACKGROUND & AIMS:The pathogenesis of non-alcoholic fatty liver disease (NAFLD) is affected by epigenetic factors as well as by genetic variation. METHODS:We performed targeted-bisulfite sequencing to determine the levels of DNA methylation of 4 CpG islands (CpG99, CpG71, CpG26, and CpG101) in the regulatory regions of PNPLA3, SAMM50, PARVB variant 1, and PARVB variant 2, respectively. We compared the levels of methylation of DNA in the livers of the first and second sets of patients with mild (fibrosis stages 0 and 1) or advanced (fibrosis stages 2 to 4) NAFLD and in those of patients with mild (F0 to F2) or advanced (F3 and F4) chronic hepatitis C infection. The hepatic mRNA levels of PNPLA3, SAMM50, and PARVB were measured using qPCR. RESULTS:CpG26, which resides in the regulatory region of PARVB variant 1, was markedly hypomethylated in the livers of patients with advanced NAFLD. Conversely, CpG99 in the regulatory region of PNPLA3 was substantially hypermethylated in these patients. These differences in DNA methylation were replicated in a second set of patients with NAFLD or chronic hepatitis C. PNPLA3 mRNA levels in the liver of the same section of a biopsy specimen used for genomic DNA preparation were lower in patients with advanced NAFLD compared with those with mild NAFLD and correlated inversely with CpG99 methylation in liver DNA. Moreover, the levels of CpG99 methylation and PNPLA3 mRNA were affected by the rs738409 genotype. CONCLUSIONS:Hypomethylation of CpG26 and hypermethylation of CpG99 may contribute to the severity of fibrosis in patients with NAFLD or chronic hepatitis C infection.
journal_name
J Hepatoljournal_title
Journal of hepatologyauthors
Kitamoto T,Kitamoto A,Ogawa Y,Honda Y,Imajo K,Saito S,Yoneda M,Nakamura T,Nakajima A,Hotta Kdoi
10.1016/j.jhep.2015.02.049subject
Has Abstractpub_date
2015-08-01 00:00:00pages
494-502issue
2eissn
0168-8278issn
1600-0641pii
S0168-8278(15)00172-5journal_volume
63pub_type
杂志文章abstract:BACKGROUND & AIMS:Histopathology is the gold standard in the diagnosis of liver diseases but may be complicated by sampling error and bleeding. Confocal laser endomicroscopy (CLE) is a novel imaging modality providing in vivo histology. Previous studies using CLE for liver microscopy suffered from limited imaging depth...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2010.01.039
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND/AIMS:We developed a bioartificial liver (BAL) based on a direct hemoperfusion typed nonwoven fabric bioreactor containing porcine hepatocytes. In this study, the efficacy of our BAL was evaluated with a pig fulminant hepatic failure (FHF) model. METHODS:FHF was induced with intravenous administration of D-g...
journal_title:Journal of hepatology
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doi:10.1016/j.jhep.2005.08.006
更新日期:2006-02-01 00:00:00
abstract:BACKGROUND/AIMS:Inflammation in the liver is a complex interaction between parenchymal and non-parenchymal cells, and therefore can not be studied in vitro in pure cultures of these cells. METHODS:We investigated whether Kupffer cells in the liver slice are still responsive to an inflammatory stimulus of lipopolysacch...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(01)00103-9
更新日期:2001-08-01 00:00:00
abstract:BACKGROUND/AIMS:The organic anion transporting polypeptides (OATPs) mediate the uptake of numerous amphipathic compounds into hepatocytes. Our aim was to study the expression and regulation of OATP8 (OATP1B3, SLC21A8/SLCO1B3) and OATP-C (OATP1B1, SLC21A6/SLCO1B1) in hepatocellular carcinomas (HCC). METHODS:RNA and pro...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2003.10.008
更新日期:2004-02-01 00:00:00
abstract::Hepatitis C infection is common in patients undergoing liver transplantation. Few studies have focused on the prevalence and epidemiology of hepatitis C infection among liver transplant recipients since the implementation of donor screening for antibodies against the hepatitis C virus (anti-HCV). Using reverse transcr...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::Hepatitis A virus (HAV) infection in adults is often symptomatic and disabling. The present article summarizes our experience with phase 2 studies of an inactivated hepatitis A virus vaccine. Pre- and post-exposure prophylaxis with immune globulin (IG) is only effective for 4-6 months. We compared the safety, tolerabi...
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)80375-7
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND/AIMS:Reactive oxygen species (ROS), such as H2O2, are implicated in normal and pathological liver function. However, due to the lack of suitable in vivo models of ROS generation the (patho) physiological relevance of H2O2 remains controversial. METHODS:We established a novel model of sustained hepatic H2O2 ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2006.09.025
更新日期:2007-03-01 00:00:00
abstract:AIM/METHODS:To elucidate the metabolic effect of interferon alpha, the following tests were performed on 14 patients with chronic active hepatitis C before and after interferon therapy (6 million units/day for 2 weeks): (1) oral glucose tolerance tests to measure insulin secretion; (2) euglycemic hyperinsulinemic clamp...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章
doi:10.1016/0168-8278(88)80004-7
更新日期:1998-02-01 00:00:00
abstract:BACKGROUND/AIMS:Hepatitis B virus can cause serious problems in individuals undergoing organ transplantation. The aim of this study was to evaluate the hepatic events among HBs-Ag positive recipients and HBs-Ag negative recipients who received products from hepatitis B virus carriers. METHODS:A total of 151 patients r...
journal_title:Journal of hepatology
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doi:10.1016/s0168-8278(99)80214-1
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journal_title:Journal of hepatology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jhep.2016.07.010
更新日期:2017-01-01 00:00:00
abstract::Serotonin or 5-hydroxytryptamine (5-HT) is known to regulate several key aspects of liver biology and these functions include hepatic blood flow, innervation and wound healing. Given the importance of these functions it is surprising that relatively little time has been dedicated to studying the precise function and m...
journal_title:Journal of hepatology
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abstract:BACKGROUND/AIMS:Familial hypobetalipoproteinemia (FHBL) is a co-dominant disorder characterized by reduced plasma levels of low-density lipoproteins. It can be caused by mutations in the gene encoding apolipoprotein B-100 (apo B), leading to the formation of truncated apo Bs which have a reduced capacity to export lipi...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(00)80270-6
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abstract::Hepatocellular carcinoma (HCC) is a leading cause of cancer-related death worldwide, and its burden is expected to increase further in the next years. In spite of the advances of classical therapies, such as surgery, transplantation, use of radiofrequency and transarterial embolization, the prognosis of this neoplasm ...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
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更新日期:2014-02-01 00:00:00
abstract::HCV is the principal etiologic agent of post-transfusion (PTH) hepatitis. The incidence and course of HCV hepatitis in liver transplant recipients is not well established. To resolve this information deficit, all records of recipients of single liver transplant (OLTx) between March 1986 and March 1990 at the Universit...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(05)80270-3
更新日期:1993-07-01 00:00:00
abstract:BACKGROUND/AIMS:Graft reperfusion in liver transplantation is usually performed by initial portal reperfusion (IPR) and delayed rearterialization. Its influence on graft microcirculation is unknown. This study aimed to assess sinusoidal perfusion in dependence to this reperfusion technique during human living-donor liv...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2004.04.017
更新日期:2004-08-01 00:00:00
abstract::Intracellular ion homeostasis in liver cell is accomplished through the concerted action of ion pumps, carriers and channels. Description of these elements includes the Na+/K+-ATPase, Na+/H+- and Cl-/ HCO3(-)-exchange and Na+-HCO-3(-)- and Na(+)-K(+)-2 Cl(-)-cotransport as well as K+-, Cl(-)-, Na+ and nonselective cat...
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::The etiologic agent responsible for epidemics of enterically-transmitted non-A, non-B hepatitis has been molecularly characterized as the hepatitis E virus (HEV). The cloning of a portion of the Burma strain of HEV (HEV(B); 'Old World' strain) has been described together with the isolation of a contiguous overlapping ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(91)90050-l
更新日期:1991-01-01 00:00:00
abstract::We have studied the roles of immunoprophylaxis, patient selection policy and coexistent hepatitis D virus infection in the outcome of 56 HBsAg-positive elective liver transplant recipients. Twenty-nine unselected patients not treated with immunoprophylaxis formed group 1 and were compared to a recent consecutive serie...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章
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更新日期:1994-08-01 00:00:00
abstract::Pulmonary concerns in liver transplant candidates have intraoperative and outcome implications. Evolving MELD exception policies address transplant priority for problems such as hepatopulmonary syndrome, portopulmonary hypertension, and hemorrhagic hereditary telangiectasia. Other pulmonary issues such as refractory h...
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pub_type: 杂志文章,多中心研究,随机对照试验
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abstract:BACKGROUND/AIMS:In families of patients with clinically detected hereditary hemochromatosis (HH) early screening has been suggested to prevent morbidity and mortality. Here, we aim to identify determinants for iron overload in first-degree family members of C282Y homozygous probands with clinically detected HH. METHOD...
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pub_type: 杂志文章
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更新日期:2009-01-01 00:00:00
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journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2003.09.028
更新日期:2004-01-01 00:00:00
abstract::In an attempt to evaluate the prevalence, kinetics and impact of HCV infection in renal transplantation, we analyzed 140 kidney recipients according to the histopathological status of the liver. Thirty-three HBsAg-negative patients had chronic active hepatitis, 73 HBsAg-negative patients had a normal liver, 21 HBsAg-n...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(92)90036-o
更新日期:1992-05-01 00:00:00
abstract:BACKGROUND & AIMS:miR-224 is up-regulated in human HCCs as compared to both paired peri-tumoral cirrhotic tissues and cirrhotic livers without HCC. Here, we have cloned the miR-224 regulatory region and characterized its transcriptional regulation by the NFκB-dependent inflammatory pathways. METHODS:Mature miRNA expre...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2011.11.017
更新日期:2012-04-01 00:00:00
abstract::Treatment of hepatic fibrosis by simple and inexpensive therapies is a new challenge for the near future. Hepatic fibrosis which may lead to cirrhosis, is indeed associated with most chronic liver diseases and affects millions of people. During the last decade, major breakthroughs have been accomplished in the field o...
journal_title:Journal of hepatology
pub_type: 评论,杂志文章,评审
doi:10.1016/s0168-8278(05)80002-9
更新日期:1993-04-01 00:00:00
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journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2003.11.026
更新日期:2004-03-01 00:00:00
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journal_title:Journal of hepatology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.jhep.2007.03.028
更新日期:2007-10-01 00:00:00
abstract::To study experimentally the protective effect of post-exposure prophylaxis against hepatitis B (HB), a special preparation of hepatitis B immune globulin (HBIG) was injected intravenously (i.v.) into three chimpanzees simultaneously with, or at different time intervals after, intravenous injection of a titred inoculum...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(89)90051-2
更新日期:1989-09-01 00:00:00
abstract:BACKGROUND & AIMS:Hepatic stellate cell (HSC) transdifferentiation into collagen-producing myofibroblasts is a key event in hepatic fibrogenesis, but the transcriptional network that controls the acquisition of the activated phenotype is still poorly understood. In this study, we explored whether the nuclear receptor c...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2016.11.003
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND & AIMS:The MELD score predicts short-term mortality in patients with cirrhosis; however, some patients with low scores develop complications and die unexpectedly. Consequently, we evaluated the diagnostic accuracy of the methacetin breath test (MBT), an assay of liver metabolic function, and the MELD score, ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2015.07.021
更新日期:2015-12-01 00:00:00