Ranjit Banerjee, Lorraine Caruccio, Yu Jing Zhang, Scott McKercher, Regina M. Santella – 30 December 2003 – To elucidate the molecular mechanisms involved in the action of common carcinogens, which can act as important cofactors in modulating hepatitis B virus–mediated hepatocellular carcinogenesis, we have investigated the influence of aflatoxin B1 (AFB), a potent liver carcinogen, as well as benzo[a]pyrene (BP) and 4‐aminobiphenyl (4‐ABP), carcinogens in cigarette smoke, on the induction of various transcription factors in human hepatoblastoma HepG2 cells.

Domenico Alvaro, Antonio Benedetti, Luca Marucci, Marco Delle Monache, Rita Monterubbianesi, Emanuele Di Cosimo, Lucia Perego, Giampiero Macarri, Shannon Glaser, Gene Le Sage, Gianfranco Alpini – 30 December 2003 – We studied the effects of alkaline phosphatase (AP) on the secretory processes of the rat intrahepatic biliary epithelium as well as the role of the intrahepatic biliary epithelium in the uptake and biliary secretion of exogenous AP.

Marie‐Pierre Bralet, Jean‐Marc Régimbeau, Pascal Pineau, Sylvie Dubois, Gwenolé Loas, Françoise Degos, Dominique Valla, Jacques Belghiti, Claude Degott, Benoît Terris – 30 December 2003 – Hepatocellular carcinoma (HCC) occurring in nonfibrotic liver represents a rare, ill‐defined subgroup of HCC without cirrhosis in which mechanisms of hepatocarcinogenesis remain unclear. The aim of our study was to assess epidemiological factors and detailed histopathologic changes in the nontumoral liver of patients developing such tumors.

Elmar Siewert, Roque Bort, Reinhart Kluge, Peter C. Heinrich, José Castell, Ramiro Jover – 30 December 2003 – Expression of cytochromes P450 (CYP) is markedly reduced during inflammatory processes. In vitro studies with hepatocytes have shown that cytokines generated during these processes down‐regulate CYP. However, it is not clear to what extent each individual cytokine contributes to the overall reduced expression of the various CYP isoenzymes in vivo.

Antonio Fontanellas, Frèdèric Mazurier, Marc Landry, Laurence Taine, Carine Morel, Monique Larou, Jean‐Yves Daniel, Xavier Montagutelli, Rafael Enriquez de Salamanca, Hubert de Verneuil – 30 December 2003 – Erythropoietic protoporphyria (EPP) is characterized clinically by cutaneous photosensitivity and biochemically by the accumulation of excessive amounts of protoporphyrin in erythrocytes, plasma, feces, and other tissues, such as the liver. The condition is inherited as an autosomal dominant or recessive trait, with a deficiency of ferrochelatase activity.

Dave L. Bigam, Jason J. Pennington, Andre Carpentier, Ian R. Wanless, Alan W. Hemming, Ruth Croxford, Paul D. Greig, Leslie B. Lilly, Jenny E. Heathcote, Gary A. Levy, Mark S. Cattral – 30 December 2003 – Hepatitis C virus (HCV) infection has recently been suggested to be a risk factor for the development of diabetes mellitus. The aim of our study was to investigate whether the prevalence of diabetes is increased among liver transplant recipients infected with HCV.

Chau‐Ting Yeh, Rong‐Nan Chien, Chia‐Ming Chu, Yun‐Fan Liaw – 30 December 2003 – Tyrosine‐methionine‐aspartate‐aspartate (YMDD)‐motif mutants may emerge and elicit immune clearance during prolonged lamivudine treatment. The aim of this study was to investigate the virological events following development of the original mutants. Twenty‐three patients who developed YMDD‐motif mutants during the Asian lamivudine trial were included. Serial serum samples from these patients were subjected to sequence analysis to identify new mutants.

Matthias Pirlich, Tatjana Schütz, Theo Spachos, Siegfried Ertl, Marie‐Luise Weiß, Herbert Lochs, Mathias Plauth – 30 December 2003 – Protein‐calorie malnutrition is associated with poor prognosis in chronic liver disease, but reliable assessment is hampered by changes in body water. We prospectively evaluated the effect of fluid retention on bioelectrical impedance analysis (BIA) as a simple method for the estimation of body cell mass (BCMBIA) in 41 patients with cirrhosis (n = 20 with ascites; n = 21 without ascites) using total body potassium counting (BCMTBP) as a reference method.

Hitoshi Yoshiji, Shigeki Kuriyama, Yoji Miyamoto, Unnur P. Thorgeirsson, Daniel E. Gomez, Mitsuhiro Kawata, Junichi Yoshii, Yasuhide Ikenaka, Ryuichi Noguchi, Hirohisa Tsujinoue, Toshiya Nakatani, Snorri S. Thorgeirsson, Hiroshi Fukui – 30 December 2003 – Tissue inhibitor of metalloproteinases‐1 (TIMP‐1) has been shown to be increased in liver fibrosis development both in murine experimental models and human samples. However, the direct role of TIMP‐1 during liver fibrosis development has not been defined.

Marcelo G. Roma, Piotr Milkiewicz, Elwyn Elias, Roger Coleman – 30 December 2003 – Hormonal control of the restoration of hepatocanalicular polarity in short‐term cultured hepatocyte couplets was analyzed. One hour following isolation, couplets were unable to accumulate the fluorescent bile acid analogue, cholyl‐lysyl‐fluorescein (CLF), and showed a nonpolarized distribution of F‐actin and mrp2 over the cell body. A progressive, time‐dependent restoration of couplet‐polarized function and morphology was reached after 4 hours of culture.