Proposal of a new nomenclature for budd‐chiari syndrome: Hepatic vein thrombosis versus thrombosis of the inferior vena cava at its hepatic portion

Kunio Okuda, Masayoshi Kage, Santosh M. Shrestha – 30 December 2003 – Budd‐Chiari syndrome (BCS) was initially defined as a symptomatic occlusion of the hepatic veins, but subsequent reports on various obliterative changes that occur in the hepatic portion of the inferior vena cava (IVC) and hepatic vein orifices have resulted in a broadened and ambiguous definition. Membranous obstruction of the inferior vena cava has been regarded by many as a congenital vascular malformation, but its relation to the classical BCS has remained obscure.

Ultrastructural analysis of hepatitis B virus in HepG2‐transfected cells with special emphasis on subviral filament morphogenesis

Philippe Roingeard, Camille Sureau – 30 December 2003 – The intracellular accumulation of empty hepatitis B virus (HBV) particles of filamentous shape leads to a direct cytopathic effect in so‐called ground‐glass hepatocytes. The aim of this study was to investigate how these filaments can be structurally formed at the cellular level. By electron microscopy, we reexamined the HBV‐producer HepG2T‐14 cells, which have been described as producing a substantial amount of empty HBV filaments compared with the other forms of HBV particles.

Efficacy of anti–intercellular adhesion molecule‐1 immunotherapy on immune responses to allogeneic hepatocytes in mice

Ginny L. Bumgardner, Jiashun Li, Marie Heininger, Charles G. Orosz – 30 December 2003 – Adhesion molecules appear to play important roles in vascularized organ allograft rejection, because antibodies directed against them are effective in prolonging survival of vascularized organ allografts in rodents. However, the efficacy of these agents for cellular allografts is unknown. The current studies were undertaken to determine the role of intercellular adhesion molecule‐1 (ICAM‐1) and vascular cell adhesion molecule‐1 (VCAM‐1) on host immune responses to purified hepatocytes.

Cellular immunity to hepatitis C virus core protein and the response to interferon in patients with chronic hepatitis C

Juan‐José Lasarte, Marta García‐Granero, Ascensión López, Noelia Casares, Nicolás García, María‐Pilar Civeira, Francisco Borrás‐Cuesta, Jesús Prieto – 30 December 2003 – To investigate the involvement of T‐cell response against hepatitis C virus (HCV) antigens in viral clearance after interferon therapy, we measured interleukin‐2 (IL‐2) production by peripheral mononuclear cells in response to HCV core in patients with chronic hepatitis C.

Modulation of endothelin and nitric oxide: A rational approach to improve canine hepatic microcirculation

Dipok Kumar Dhar, Akira Yamanoi, Haruyuki Ohmori, Yuichi Nakashima, Akitaka Yamamoto, N. El‐Assal Osama, Hirofumi Kubota, Hitoshi Kohno, Naofumi Nagasue – 30 December 2003 – ET receptor blocker (TAK‐044) and NO donor (FK409) were used to improve the hepatic microcirculation following ischemia‐reperfusion injury. In the first experiment (60 minutes of ischemia), 15 dogs were divided into three groups: group A (control), saline; group B, TAK 5 mg/kg; and group C, FK 0.4 mg/kg.

Chronic alcohol intake reduces retinoic acid concentration and enhances AP‐1 (c‐Jun and c‐Fos) expression in rat liver

Xiang‐Dong Wang, Chun Liu, Jayong Chung, Felix Stickel, Helmut K. Seitz, Robert M. Russell – 30 December 2003 – Chronic ethanol intake may interfere with retinoid signal transduction by inhibiting retinoic acid synthesis and by enhancing activator protein‐1 (AP‐1) (c‐Jun and c‐Fos) expression, thereby contributing to malignant transformation. To determine the effect of ethanol on hepatic retinoid levels, retinoic acid receptors (RARs) and AP‐1 (c‐Jun and c‐Fos) gene expression, chronic ethanol (36% of total calorie intake) pair‐feeding was conducted on rats for a 1‐month period.

Renal effects of transjugular intrahepatic portosystemic shunt in cirrhosis: Comparison of patients with ascites, with refractory ascites, or without ascites

Alexander L. Gerbes, Veit Gülberg, Tobias Waggershauser, Josef Holl, Maximilian Reiser – 30 December 2003 – Renal effects of the transjugular intrahepatic portosystemic shunt (TIPS) were compared in 6 patients without ascites (group 1), 11 patients with ascites responding to diuretic treatment (group 2), and 6 patients with refractory ascites (group 3). Seven days after insertion of TIPS, 24‐hour urinary sodium excretion had increased in patients with ascites: 113 ± 16 mmol to 170 ± 30 mmol (P = .012) in group 2, and 22 ± 8 mmol to 77 ± 27 mmol (P = .050) in group 3.

Clinical outcome of hepatitis C as a function of mode of transmission

Stuart C. Gordon, Nasser Bayati, Ann L. Silverman – 30 December 2003 – Several reports suggest that posttransfusion hepatitis C causes more aggressive histological activity than disease that is acquired via other routes. We sought to determine whether mode of transmission affects disease outcome. We studied the demographics, presenting laboratory data, and clinical course of 627 consecutively evaluated nonalcoholic patients with chronic hepatitis C.

Hepatocyte‐specific expression of the human MDR3P‐glycoprotein gene restores the biliary phosphatidylcholine excretion absent in Mdr2 (−/−) mice

Alexander J. Smith, J. Marleen de Vree, Roelof Ottenhoff, Ronald P. Elferink, Alfred H. Schinkel, Piet Borst – 30 December 2003 – Mice homozygous for a disruption in the Mdr2 gene (Mdr2 (−/−) mice) lack the Mdr2 P‐glycoprotein (P‐gp) in the canalicular membrane of the hepatocyte and are unable to excrete phosphatidylcholine into the bile. These mice develop a nonsuppurative cholestatic liver disease, presumably caused by the high concentrations of free cytotoxic bile acids in bile.

Transport of fluorescent bile acids by the isolated perfused rat liver: Kinetics, sequestration, and mobilization

Fernando Holzinger, Claudio D. Schteingart, Huong‐Thu Ton‐Nu, Carolina Cerrè, Joseph H. Steinbach, Hong‐Zen Yeh, Alan F. Hofmann – 30 December 2003 – Hepatocyte transport of six fluorescent bile acids containing nitrobenzoxadiazolyl (NBD) or a fluorescein derivative on the side chain was compared with that of natural bile acids using the single‐pass perfused rat liver.

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