Maurizio Parola, Gabriella Leonarduzzi, Fiorella Biasi, Emanuele Albano, Maria E. Biocca, Giuseppe Poli, Mario U. Dianzani – 1 October 1992 – Previous studies have shown that α‐tocopherol (vitamin E) pretreatment of experimental animals can protect against acute liver necrosis induced by carbon tetrachloride. In this study we investigated whether the increase of vitamin E liver content by dietary supplementation influences chronic liver damage and cirrhosis induced by carbon tetrachloride in the rat.

Ravikumar P. Vemuru, Emma Aragona, Sanjeev Gupta – 1 October 1992 – Assessment of liver regeneration with endogenous genes that are expressed during DNA replication is physiological, specific and direct. To determine whether H3 histone messenger RNA expression (which is tightly coupled with DNA synthesis) could be used for this purpose, we initially examined liver regeneration in a mouse model. After partial hepatectomy, RNA transblot studies showed induction of H3 histone messenger RNA expression in regenerating mouse livers.

Fa‐Yauh Lee, Agustin Albillos, Luis A. Colombato, Roberto J. Groszmann – 1 October 1992 – This study examined whether an increased activity of the endothelium‐derived relaxing factor, nitric oxide, may account for the hyporesponsiveness to vasoconstrictors in portal hypertension. We performed dose‐response curves to methoxamine, an α‐adrenoceptor agonist, with and without Nω‐nitro‐L‐arginine, a specific inhibitor of nitric oxide synthesis, in experimental portal hypertension.

Tirso Castillo, Dennis R. Koop, Seiichiro Kamimura, George Triadafilopoulos, Hidekazu Tsukamoto – 1 October 1992 – This study investigated the role of cytochrome P‐450 2E1 in enhanced microsomal lipid peroxidation in experimental alcoholic liver disease. We also examined the contribution of this isoform to the increased microsomal injury in alcoholic liver disease caused by carbon tetrachloride—induced or iron‐induced oxidant stress.

Jonathan B. Kruskal, Simon C. Robson, John J. Franks, Ralph E. Kirsch – 1 October 1992 – Patients with liver disease have a variety of coagulation abnormalities. These derangements are of uncertain origin and do not always correlate with disease severity or activity.

Steven R. Martin – 1 October 1992

1 October 1992

Tomihiro Hayakawa, Kenji Katagiri, Makoto Hoshino, Tomio Nakai, Takayuki Ohiwa, Tomoyuki Kumai, Makoto Miyaji, Toshihiko Takeuchi, James Corasanti, James L. Boyer – 1 October 1992 – Papaverine is a nonspecific smooth muscle relaxant and a phosphodiesterase inhibitor. Its effects on biliary excretion of lipids and horseradish peroxidase were investigated in a single‐pass isolated perfused rat liver model. A constant infusion of papaverine (1.6 μmol/min; 40 μmol/L) significantly increased bile flow (microliters per minute per gram of liver) before (2.03 ± 0.09 vs.

Philippe Sogni, Richard Moreau, Masaru Ohsuga, Stephane Cailmail, Frederic Oberti, Antoine Hadengue, Eric Pussard, Didier Lebrec – 1 October 1992 – Because it has been hypothesized that the hyperkinetic circulation in portal hypertension is the result of increased synthesis of nitric oxide, we compared the hemodynamic effects of nitric oxide synthesis—specific agonist (L‐arginine) and antagonist between normal and cirrhotic conscious rats. The dose‐response curves showed that L‐arginine significantly decreased arterial pressure and increased heart rate.

Paul D. Berk – 1 September 1992