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 inactivation by glucuronidation has not been investigated. METHODS:Cyclosporine A and tacrolimus glucuronidation was measured in hepatic and gastrointestinal microsomal protein, and with 11 recombinant hepatic and extrahepatic family 1 and 2 UDP-glucuronosyltransferases. UDP-glucuronosyltransferase transcripts were determined by polymerase chain reaction. RESULTS:Significant cyclosporine and tacrolimus glucuronidation activity was present in endoplasmic reticulum from liver, duodenum, jejunum, ileum and colon, but was absent in stomach. Specific cyclosporine A glucuronidation activity was highest in liver and colon, tacrolimus glucuronidation was highest in liver. Analyses using recombinant UDPglucuronosyltransferases identified UGT2B7 as a human UDP-glucuronosyltransferase with specific activity toward cyclosporine A and tacrolimus. The hepato-gastrointestinal distribution of immunosuppressant glucuronidation activity corresponded to the differential expression pattern of UGT2B7 mRNA. CONCLUSIONS:This study provides conclusive evidence of hepatic and extrahepatic immunosuppressant glucuronidation by human UGT2B7 which was identified to be differentially expressed in the human hepatogastrointestinal tract. Hepatic and extrahepatic glucuronidation may influence the therapeutic efficacy of transplant immunosuppressants.
journal_name
J Hepatoljournal_title
Journal of hepatologyauthors
Strassburg CP,Barut A,Obermayer-Straub P,Li Q,Nguyen N,Tukey RH,Manns MPdoi
10.1016/s0168-8278(01)00040-xsubject
Has Abstractpub_date
2001-06-01 00:00:00pages
865-72issue
6eissn
0168-8278issn
1600-0641pii
S016882780100040Xjournal_volume
34pub_type
杂志文章abstract:BACKGROUND/AIMS:Venous hyporesponsiveness in portal hypertension has been reported previously by us. The present study was undertaken to investigate possible changes of phosphoinositide signal transduction pathway in the portal veins from portal hypertensive rats METHODS:Portal hypertension was induced by partial port...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(97)80055-4
更新日期:1997-02-01 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...
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更新日期:2006-02-01 00:00:00
abstract:BACKGROUND & AIMS:In this study, adenoviral vectors encoding an antisense RNA complementary to the 5' non-coding region (5'NCR) of the HCV-genome were generated to inhibit HCV-RNA gene expression in cell culture and in vivo. METHODS:First and second-generation (with E4-deletion) adenoviruses encoding the HCV5'NCR in a...
journal_title:Journal of hepatology
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doi:10.1016/j.jhep.2010.11.010
更新日期:2011-07-01 00:00:00
abstract:BACKGROUND & AIMS:Non-alcoholic steatohepatitis (NASH) is a leading cause of chronic liver disease in Western countries. It is unclear how infiltrating leukocytes affect NASH-development. Our study aims to investigate the role of the homing/receptor, pair mucosal addressin cell adhesion molecule-1 (MAdCAM-1)/β7-Integri...
journal_title:Journal of hepatology
pub_type: 杂志文章
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更新日期:2017-06-01 00:00:00
abstract::Liver diseases affect millions of people worldwide. In most developed countries, the incidence of viral hepatitis is waning as a result of modern advances in disease prevention, diagnosis, and therapies. Expanded programmes for systematic immunisation against hepatitis B virus have also significantly brought down the ...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2019.03.004
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND/AIMS:Platelet function abnormalities contribute to the hemostatic defect in patients with cirrhosis. In this study we evaluated the occurrence of in vivo platelet activation as a possible mechanism of defective platelet aggregation in patients with cirrhosis. METHODS:Nine patients with severe (Child B-C) ci...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(96)80164-4
更新日期:1996-04-01 00:00:00
abstract:BACKGROUND/AIMS:Not all alcoholic patients develop severe liver disease with fibrosis progressing to cirrhosis. It is of practical importance to determine whether some markers can predict progression of liver fibrosis. METHODS:We used a baboon model that mimics human alcoholic liver disease. Cytokeratin 7 and 19 expre...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(03)00144-2
更新日期:2003-06-01 00:00:00
abstract:BACKGROUND/AIMS:Members of the CD44 family are transmembrane glycoproteins which act mainly as receptors for hyaluronan. We have examined the expression of CD44s and several CD44v and the relationship between these and hepatocellular carcinoma (HCC) grade, clinicopathological parameters, p53 expression, and patient sur...
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pub_type: 杂志文章
doi:10.1016/s0168-8278(00)80192-0
更新日期:2000-01-01 00:00:00
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journal_title:Journal of hepatology
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doi:10.1016/s0168-8278(01)00285-9
更新日期:2002-03-01 00:00:00
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journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/0168-8278(90)90061-u
更新日期:1990-03-01 00:00:00
abstract::Linoleic and alpha-linolenic acids are the fatty acids designated as "essential" since they are not synthesized by mammalian cells and must be provided in the diet. The recent dietary shift towards the consumption of n-6 (omega-6) at the expense of n-3 (omega-3) polyunsaturated fatty acids (PUFAs) is thought to be a p...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2007.08.005
更新日期:2007-11-01 00:00:00
abstract:BACKGROUND/AIMS:Most hepatocellular carcinomas are still discovered at an advanced stage and are left untreated as large hepatocellular carcinomas are contraindications to liver transplantation and percutaneous ethanol injection and are usually considered as poor indications for liver resection. The aim of this study w...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(99)80319-5
更新日期:1999-12-01 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::The alterations of hepatobiliary transport that occur in cholestasis can be divided into primary defects, such as mutations of transporter genes or acquired dysfunctions of transport systems that cause defective canalicular or cholangiocellular secretion, and secondary defects, which result from biliary obstruction. T...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/s0168-8278(00)80411-0
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND & AIMS:Animal models and human case series of acute liver failure (ALF) suggest moderate hypothermia (MH) to have protective effects against cerebral oedema (CO) development and intracranial hypertension (ICH). However, the optimum temperature for patient management is unknown. In a prospective randomized co...
journal_title:Journal of hepatology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jhep.2016.03.003
更新日期:2016-08-01 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:To assess the effect of lactoferrin on oxidative liver damage and its mechanism, we used Long-Evans Cinnamon (LEC) rats that spontaneously develop fulminant-like hepatitis and lethal hepatic failure. METHODS:Four-week-old female LEC rats were divided into the untreated and treated groups. The latter wa...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2007.11.013
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND/AIMS:Phosphorylase-b deficient patients suffer from glycogen storage disease (GSD IXa) leading to liver enlargement which usually resolves during puberty and adolescence. This pathology has not yet been documented by (1)H MR spectroscopy (MRS) investigation. METHODS:MRS of eight GSD IXa patients was perform...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2006.06.021
更新日期:2006-12-01 00:00:00
abstract:BACKGROUND & AIMS:Hepatitis C virus (HCV) incidence among HIV-positive men who have sex with men (MSM) has increased since 2000, although there are regional differences. We aimed to 1) estimate trends in HCV incidence among HIV-positive MSM, 2) assess the association between incidence and geographical region, age and H...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2017.03.038
更新日期:2017-08-01 00:00:00
abstract::Occasionally direct sequencing of amplified hepatitis B virus DNA leads to weak signals on autoradiograms. Using amplified C-gene sequences we investigated whether this is due to sequence heterogeneity of virus populations and use of inappropriate primers for direct sequencing. High C-gene sequence heterogeneity (poin...
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pub_type: 杂志文章
doi:10.1016/s0168-8278(05)80009-1
更新日期:1993-04-01 00:00:00
abstract:BACKGROUND & AIMS:The insignificance of pure microsteatosis (MiS) was reported in living donor liver transplantation (LDLT). However, since steatosis is mostly found in a mixed form of microsteatosis (MiS) and macrosteatosis (MaS), we aimed to determine the importance of MiS mixed with MaS in LDLT. METHODS:Donor match...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2014.10.027
更新日期:2015-03-01 00:00:00
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journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2015.10.015
更新日期:2016-03-01 00:00:00
abstract::Ultrastructural changes were observed in 23 consecutive patients who died from fulminant hepatic failure due to hepatitis B virus (4 cases), sporadic non-A, non-B (7), or paracetamol (acetaminophen) overdose (12) and in 3 patients with subacute hepatic necrosis of unknown cause. The findings are described in detail in...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(86)80087-3
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND & AIMS:Roles of alcohol consumption in non-alcoholic fatty liver disease are still controversial, although several cross-sectional studies have suggested the beneficial effect of light to moderate drinking on fatty liver. We analyzed the longitudinal relationship between drinking pattern and fatty liver. ME...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2014.11.025
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND & AIMS:Sepsis is an acute systemic inflammatory response to infection associated with high patient mortality (28-40%). We hypothesized that interleukin (IL)-30, a novel cytokine protecting mice against liver injury resulting from inflammation, would generate a protective effect against systemic inflammation ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2015.12.020
更新日期:2016-05-01 00:00:00
abstract:BACKGROUND/AIMS:The aim was to study the reproducibility of magnetic resonance velocity mapping, when measuring portal vein and superior mesenteric artery blood flow, under fasting and post-prandial conditions. Magnetic resonance flow measurements for the portal vein were compared with echo-Doppler measurements in the ...
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(97)80045-1
更新日期:1997-02-01 00:00:00
abstract:BACKGROUND/AIMS:Circulatory abnormalities with activation of vasoconstrictor systems after large-volume paracentesis are generally considered secondary to an increased extravasation of fluid from the intravascular compartment to the extravascular space with subsequent reduction in plasma volume. To test this hypothesis...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(97)80081-5
更新日期:1997-10-01 00:00:00
abstract::Twenty-two patients with primary biliary cirrhosis were treated with ursodeoxycholic acid, 10 mg/kg per day. Fourteen patients with stages I/II were treated for 4-12 years (mean 7.5), and eight patients with stages III/IV for 5-12 years (mean 6.5). Twelve of 13 patients with early stages became asymptomatic. Aminotran...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章
doi:10.1016/s0168-8278(94)80111-8
更新日期:1994-10-01 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:BACKGROUND/AIMS:This study aimed to determine whether there is an increased infectious risk following liver biopsy in liver transplant patients with choledochojejunostomy. METHODS:We evaluated the incidence of liver-biopsy-related sepsis in a consecutive series of 27 patients who underwent choledochojejunostomy, eithe...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(96)80012-2
更新日期:1996-03-01 00:00:00