Hepatic mitochondrial proliferation in rats with secondary biliary cirrhosis: Time course and mechanisms

M Forestier, M Solioz, F Isbeki, C Talos, J Reichen, S Krahenbuhl – 30 December 2003 – It is well known that the hepatic mitochondrial protein content is increased in rats 4 weeks after bile duct ligation. In the present study, we measured the time course of this increase and assessed the levels of selected mitochondrial messenger RNA (mRNA) species and the rate of mitochondrial protein synthesis by isolated mitochondria.

Cell growth and differentiation of a novel mouse Ito (fat‐storing) cell line transformed by a temperature‐sensitive mutant of simian virus 40

Y Kitamura, T Tanigawa, T Katsumoto, K Tomita, H Wang, K Hirai, K Ichihara, T Terada – 30 December 2003 – A novel mouse Ito (fat‐storing) cell line (A640‐IS) was established by transformation with a temperature‐sensitive mutant of simian virus 40 (SV40) and the relationships between the expression of SV40 large T antigen and the growth, differentiation, and functions of A640‐IS cells were investigated. A640‐IS cells expressed large T antigen when cultured at 33 degrees C. At this temperature, the cells grew actively, assumed a fibroblastic shape, and showed few Ito cell characteristics.

Pentoxifylline inhibits growth and collagen synthesis of cultured human hepatic myofibroblast‐like cells

A Preaux, A Mallat, J Rosenbaum, E Zafrani, P Mavier – 30 December 2003 – During the course of liver fibrogenesis, myofibroblast‐like cells (MFLC), mostly derived from hepatic stellate cells, proliferate and synthesize excessive amounts of extracellular matrix components. Pentoxifylline (PTX) elicits antiproliferative and antifibrogenic effects in human dermal fibroblasts. The aim of this study was to test the effects of PTX on the proliferation and the synthesis of collagen and gelatinase A in cultured human hepatic MFLC. MFLC were obtained by outgrowth from human liver explants.

Circulatory effects of graded diversion of portal blood flow to the systemic circulation in rats: Role of nitric oxide

C Bernadich, J C Bandi, C Piera, J Bosch, J Rodes – 30 December 2003 – Total portal‐systemic shunting in normal animals is associated with splanchnic and systemic vasodilation, suggesting that vasodilation in cirrhosis may be facilitated by spontaneous shunts promoted by portal hypertension. However, the mechanism of this vasodilation is unknown. The aim is to study the acute effects of the graded diversion of portal blood flow to the systemic circulation in normal and portal hypertensive rats.

Long‐term consequence of rat orthotopic liver transplantation with and without hepatic arterial reconstruction: A clinical, pathological, and hemodynamic study

H Imamura, B Rocheleau, J Côté, P M Huet – 30 December 2003 – Our aim was to investigate the time‐related changes in various parameters following orthotopic rat liver transplantation with (AOLT) and without (NOLT) arterial reconstruction in male Lewis rats. Body weight and biochemical parameters were measured weekly, and a liver biopsy was obtained at 4, 8, and 12 weeks. Hemodynamics were evaluated at 12 weeks using the microsphere technique and compared with matched controls. Following AOLT, rats gained weight normally without any noticeable complication.

Taste perception in cirrhosis: Its relationship to circulating micronutrients and food preferences

A M Madden, W Bradbury, M Y Morgan – 30 December 2003 – Impairment of gustatory acuity may influence nutrient intake and hence nutritional status. The aim of this study was to evaluate gustatory acuity in patients with cirrhosis and its relationship to circulating concentrations of micronutrients, and food preferences. Gustatory evaluation was undertaken, using a rinsing technique, in 75 cirrhotic patients and 75 comparable healthy volunteers. Circulating concentrations of magnesium, zinc, vitamin A, and α‐ and β‐carotene were measured, and food preferences were assessed by questionnaire.

Hemodynamic evaluation of the addition of isosorbide‐5‐mononitrate to nadolol in cirrhotic patients with insufficient response to the β‐ blocker alone

C Merkel, D Sacerdoti, M Bolognesi, E Enzo, R Marin, G Bombonato, P Angeli, A Gatta – 30 December 2003 – The association β‐blockers plus isosorbide‐5‐mononitrate (I5M) has been proposed for the treatment of portal hypertension in patients with insufficient response to β‐blockers alone, according to hemodynamic criteria. The mechanism of action in these patients is not clearly defined.

Resolution of paraneoplastic bile duct paucity following successful treatment of Hodgkin's disease

O M Crosbie, J P Crown, N P Nolan, R Murray, J E Hegarty – 30 December 2003 – We report the case of a 21‐year‐old woman who developed severe adult onset ductopenia in association with Hodgkin's lymphoma. Chemotherapy resulted in a remission of her Hodgkin's disease (HD) and significant improvement in liver function with resolution of the hepatic and biliary duct histological abnormalities, a therapeutic success not previously described in the literature.

Prediction of abstinence from ethanol in alcoholic recipients following liver transplantation

P F Foster, F Fabrega, S Karademir, H N Sankary, D Mital, J W Williams – 30 December 2003 – The prediction of abstinence from ethanol may be crucial to the optimal selection of liver transplantation candidates with alcoholism. Of 84 consecutive end‐stage alcoholic patients who underwent transplantation (1986‐1994) at our institution, we analyzed 63 long‐surviving recipients for pretransplantation variables to predict posttransplantation abstinence (follow‐up: 49.3 ± 21 mo).

Endoscopic variceal ligation in prophylaxis of first variceal bleeding in cirrhotic patients with high‐risk esophageal varices

C Lay, Y Tsai, C Y Teg, W S Shyu, W S Guo, K L Wu, K J Lo – 30 December 2003 – To determine the efficacy of endoscopic variceal ligation (EVL) in prophylaxis on the rate of first esophageal variceal bleeding, we conducted a prospective, randomized trial in 126 cirrhotic patients with no history of previous upper gastrointestinal bleeding and with esophageal varices endoscopically judged to be at high risk of hemorrhage. The end‐points of the study were bleeding and death.

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