Abstract:
BACKGROUND/AIMS:In this study, a detailed morphometrical analysis of the hepatic microvasculature in the different zones of hepatic parenchyma was performed in normal and cirrhotic rat liver (CCl4-induced). The aims were to detect, in CCl4-induced cirrhosis, the real presence of the "capillarization" of hepatic sinusoids and to assess alterations of the sinusoid/parenchyma ratio within the nodule. METHODS:Cirrhosis was promoted by controlled intragastric CCl4 administration. Scanning electron microscopy of the vascular corrosion cast technique associated with light microscopy and transmission electron microscopy were used. RESULTS:Evidence of connective tissue in the space of Disse was found only in sinusoids located near portal tracts or large fibrotic areas, and this was also confirmed by laminin immunohistochemistry. In contrast, all the intranodular sinusoids lacked real basal membrane and connective fibers in the space of Disse and, displayed normal fenestrations. The parenchymal area, sinusoidal area, mean sinusoidal area, sinusoidal perimeter, hepatocyte area and the reciprocal ratios were all considered in the morphometrical analysis. The sinusoids were of uniform size in the periportal, periseptal and pericentral areas of the cirrhotic liver without the typical zonal differences of the normal liver. The areas occupied by sinusoids per unit of parenchyma and the sinusoid/hepatocyte interfaces disposable for metabolic exchanges were markedly smaller (p<0.01) in cirrhotic than normal liver. CONCLUSION:Our findings indicate that capillarization of hepatic sinusoids occurs only in very limited regions of the cirrhotic parenchyma, and thus this phenomenon does not have relevant functional consequences. Furthermore, the cirrhotic parenchyma appears not to be supplied by sinusoids and lacks features of zonation, which is a condition that could play a major role in the development and progression of liver failure.
journal_name
J Hepatoljournal_title
Journal of hepatologyauthors
Onori P,Morini S,Franchitto A,Sferra R,Alvaro D,Gaudio Edoi
10.1034/j.1600-0641.2000.033004555.xsubject
Has Abstractpub_date
2000-10-01 00:00:00pages
555-63issue
4eissn
0168-8278issn
1600-0641pii
S0168-8278(00)80007-0journal_volume
33pub_type
杂志文章abstract:BACKGROUND/AIMS:Liver macrophages play an essential role in necro-inflammatory liver damage which leads to fibrosis and cirrhosis. The aim of the present study was to compare the mediator release and the DNA synthesis of macrophages at an early and at a later stage of liver cirrhosis induced by thioacetamide. METHODS:...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(97)80118-3
更新日期:1997-05-01 00:00:00
abstract::Mutant HBV genomes unable to produce preS2 protein were identified in the serum of a highly viremic chronic carrier. By direct sequencing of the amplified preS region and by sequencing of 50 cloned amplified preS DNA fragments all molecules were found to have deleted the preS2 translation initiation codon and three am...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(91)90036-b
更新日期:1991-01-01 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:BACKGROUND & AIMS:The liver is the main hematopoietic site in embryos, becoming a crucial organ in both immunity and metabolism in adults. However, how the liver adapts both the immune system and enzymatic profile to challenges in the postnatal period remains elusive. We aimed to identify the mechanisms underlying this...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2018.08.018
更新日期:2018-12-01 00:00:00
abstract::This article summarizes the current state of antiviral therapy of hepatitis B with special attention given to areas that remain controversial or poorly defined. Strict adherence to liver association practice guidelines may result in missed opportunities to treat patients with significant underlying liver disease. In p...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2008.01.011
更新日期:2008-01-01 00:00:00
abstract::Secondary biliary cirrhosis in the rat is an attractive model since unlike other models it does not rely on exogenous toxic compounds to induce cirrhosis. However, because little is known about the microcirculatory abnormalities of this model, this study investigated hemodynamics in rats with predefined functional imp...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(05)80031-5
更新日期:1993-02-01 00:00:00
abstract:BACKGROUND/AIMS:The tropical parasite Schistosoma mansoni causes granulomatous inflammation following lodging of eggs in portal capillaries. In vitro studies indicated that the host reaction should involve reactive oxygen intermediates; however, it is not known what occurs in vivo at the site of the disease. Moreover, ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(99)80189-5
更新日期:1999-04-01 00:00:00
abstract::All routinely available assays to detect hepatitis C virus (HCV) infection are based on the specific reaction of serum antibodies to corresponding viral antigens. The only method to detect viral nucleic acids in serum or liver is the enzymatic amplification of reversely transcribed HCV-RNA by polymerase chain reaction...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(92)90074-y
更新日期:1992-07-01 00:00:00
abstract::Infection with the hepatitis C virus (HCV) is the major cause of nonA-nonB hepatitis worldwide. Although this virus cannot be cultivated in vitro, several of its key features have been elucidated in the past few years. The viral genome is a positive-sense, single-stranded, 9.6 kb long RNA molecule. The viral genome is...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/s0168-8278(99)80374-2
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND/AIMS:Health-related quality of life (HRQoL) is impaired in patients with chronic hepatitis C. We investigated HRQoL and fatigue in patients with chronic hepatitis C virus (HCV) infection in relation to the degree of fibrosis and inflammation, and controlled for the influence of relevant demographic and medic...
journal_title:Journal of hepatology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jhep.2008.07.025
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND/AIMS:Lamivudine is an antiviral drug that is used to treat hepatitis B virus (HBV) infection. Long-term therapy does not completely suppress viral replication, and resistant mutants emerge. Resistance is mediated by changes in the tyrosine-methionine-apartate-aspartate (YMDD) motif in the catalytic site of t...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2004.02.009
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND & AIMS:HCV requires host lipid metabolism for replication, and apolipoproteins have been implicated in the response to treatment. METHODS:We examined plasma apolipoprotein concentrations in three cohorts of patients: mono-infected patients with symptomatic acute hepatitis C (aHCV); those undergoing treatmen...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2014.05.040
更新日期:2014-10-01 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:As conditional knockout mice for stat3 are impaired in liver regeneration after partial hepatectomy while those for gp130 have defects in early STAT3 phosphorylation but have normal DNA synthesis, late STAT3 phosphorylation induced independently of gp130 seems to be essential for liver regeneration. Sin...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2007.08.020
更新日期:2008-02-01 00:00:00
abstract::The term cirrhosis-associated immune dysfunction refers to the main syndromic abnormalities of immune function, immunodeficiency and systemic inflammation that are present in cirrhosis. The course of advanced cirrhosis, regardless of its aetiology, is complicated by cirrhosis-associated immune dysfunction and this con...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2014.08.010
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND & AIMS:There is little information regarding the extent to which difficult to cure patients with advanced liver fibrosis, due to hepatitis C virus genotype-1 (HCV-1) can successfully and safely be treated with triple therapy with telaprevir (TVR), pegylated interferon alpha (P) and ribavirin (R). In the TVR ...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1016/j.jhep.2014.06.005
更新日期:2014-11-01 00:00:00
abstract:BACKGROUND/AIMS:Gadolinium chloride inactivates Kupffer cells and alleviates alcohol-induced liver lesions. We investigated the mechanism of gadolinium chloride protection after oral ethanol feeding. METHODS:Rats were maintained ethanol-intoxicated for 6 weeks by feeding ethanol in a low-carbohydrate/high-fat liquid d...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(00)80094-x
更新日期:2000-06-01 00:00:00
abstract:BACKGROUND & AIMS:Aceruloplasminemia is a rare autosomal recessive neurodegenerative disease associated with brain and liver iron accumulation which typically presents with movement disorders, retinal degeneration, and diabetes mellitus. Ceruloplasmin is a multi-copper ferroxidase that is secreted into plasma and facil...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2010.04.039
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND/AIMS:The liver is the main source of circulating insulin-like growth factor binding proteins. In man, the cellular origin of insulin-like growth factor binding proteins has remained obscure. METHODS:Human hepatocytes isolated from surgical specimens were purified and cultured using a collagen gel immobiliza...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(95)80201-0
更新日期:1995-10-01 00:00:00
abstract::A young female, who had been in excellent health and had used third-generation oral contraceptives, was admitted to hospital because of abdominal pain and ascites. Budd-Chiari syndrome (BCS) was diagnosed by radiographic and histological examination. Tests for myeloproliferative disease, deficiency of coagulation inhi...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(00)80290-1
更新日期:2000-09-01 00:00:00
abstract::Endoscopic ultrasonography was performed in 80 cirrhotic patients and 50 control subjects. The aim of the study was to describe and classify the vascular abnormalities of the gastric wall as observed on echoendoscopy in cirrhotic patients and to compare the data with endoscopy. The size of gastric varices was classifi...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(05)80581-1
更新日期:1993-09-01 00:00:00
abstract::Tissue stress and cell death result in inflammation even in the absence of pathogens. Such sterile inflammation is dependent on a cytosolic complex of proteins inside immune cells termed the inflammasome. This complex converts two groups of extracellular signals into an inflammatory response via activation of caspase-...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2012.12.017
更新日期:2013-05-01 00:00:00
abstract:BACKGROUND/AIMS:To study effects of pharmacologic concentrations of azathioprine and 6-mercaptopurine (6-MP) on rat hepatocytes. METHODS:Hepatocytes cultured on matrigel were incubated with azathioprine or 6-MP; effects of putative protective agents were studied. Viability (LDH leakage), reduced (GSH) and oxidized glu...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2003.11.024
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND/AIMS:Thrombin and MC tryptase, which are agonists for proteinase-activated receptors-1 and -2, respectively, are both increased in injured liver. We have examined if rat stellate cells express these receptors and if receptor agonists influence stellate cell activation. METHODS:Expression of mRNA for protein...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(01)00285-9
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND/AIMS:To examine the extent and mechanisms of apoptosis in cholestatic liver injury and to explore the role of the transcription factor nuclear factor-kappa B in protection against bile acid-induced apoptosis. METHODS:Cholestatic liver injury was induced by bile duct ligation in Wistar rats. Furthermore, pri...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(03)00214-9
更新日期:2003-08-01 00:00:00
abstract::Fulminant hepatic failure has a high mortality rate despite intensive medical treatment. Urgent hepatic transplantation was considered over a 3 year period in 26 (36%) of 73 patients with the worst prognostic features of fulminant hepatic failure. The criteria for patient selection were based on the duration of advanc...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(88)80475-6
更新日期:1988-10-01 00:00:00
abstract::Data derived from population, case-control, and cohort studies conducted in several Euro-Mediterranean and African countries disclose impressive similarities in the age and modes of hepatitis B virus (HBV) transmission and in the prevalence, duration, and outcome of the four phases of the natural history of chronic in...
journal_title:Journal of hepatology
pub_type: 历史文章,杂志文章,评审
doi:10.1016/j.jhep.2010.12.030
更新日期:2011-07-01 00:00:00
abstract::The ischemic biliary phenotype of hereditary hemorrhagic telangiectasia (HHT) is rare but distinct, with progressive biliary tree ischemia usually resulting in an irreversible secondary sclerosing cholangiopathy. When clinically severe, liver transplant is often indicated. We report three patients with marked HHT asso...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2013.02.006
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND/AIMS:The world-wide distribution of hepatitis B virus (HBV) genotypes follows a geographic pattern under the influence of ethnic background. METHODS:Forty eight core genes from four pacific islands were compared with the following findings. RESULTS:First, island-specific variant substitutions were found fo...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2004.03.025
更新日期:2004-07-01 00:00:00
abstract:BACKGROUND/AIMS:Vascular endothelial growth factor (VEGF) is an angiogenic factor with a growth-promoting effect that is thought to be restricted to vascular endothelial cells. Its essential role during liver regeneration has yet to be determined. The aim of this study was to document the effect of exogenous VEGF admin...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(99)80147-0
更新日期:1999-05-01 00:00:00