Gary E. Sanders, Robert P. Perrillo – 1 May 1985 – The potential immunoregulatory effects of rosette inhibitory factor (RIF) were evaluated using lymphocyte subpopulations defined by monoclonal antibodies (OKT4, OKT8). Initial experiments indicated that RIF inhibits E‐rosette formation by T cells that provide helper/inducer function (OKT4+). Subsequently, experiments were done to assess if RIF had an inhibitory effect on in vitro immunoglobulin and anti‐HBs production. These studies used peripheral blood mononuclear cells from convalescent and hepatitis B‐vaccinated donors.

Christine E. Bear, Connie N. Petrunka, Steven M. Strasberg – 1 May 1985 – Chloride is the major inorganic anion in bile but its mechanism of passage from blood to bile is uncertain. Specific membrane channels account for most net inorganic anion flux in other cell types such as the proximal tubular cell and red blood cell; disulfonic stilbenes inhibit anion movement through these channels. Therefore, we have sought the presence of similar channels in the hepatocyte.

Donald M. Jensen – 1 May 1985

Hyam L. Leffert, Dale B. Schenk, Jeffrey J. Hubert, Harold Skelly, Mark Schumacher, Reginald Ariyasu, Mark Ellisman, Katherine S. Koch, Gilbert A. Keller – 1 May 1985

Thomas B. Leonard, D. Gwyn Morgan, John G. Dent – 1 May 1985 – Cimetidine has been shown to protect against acetaminophen‐mediated hepatotoxicity in both rats and mice. In contrast to cimetidine, ranitidine recently has been determined to potentiate the hepatotoxic action of acetaminophen in Fischer 344 rats. The present studies were designed to characterize this ranitidine‐acetaminophen interaction. Acetaminophen administration (750 mg per kg, p.o.) to F344 rats produced maximal hepatic necrosis, 24 hr after treatment, as assessed by SGPT activity and histopathology.

Daniel Shouval, Dan Eilat, Rolf I. Carlson, Ruth Adler, Nelly Livni, Jack R. Wands – 1 May 1985 – A library of murine monoclonal antibodies reactive with human hepatoma cells was generated following immunization of Balb/c mice with an intact cloned human hepatoma cell line, designated PLC/PRF/5‐NR. We report the characterization of one such IgG2a antibody, designated anti‐PLC1.

Rafael Esteban, Maria Buti, Rosendo Jardi, Jamie Guardia, Ding‐Shinn Chen, Ming‐Yang Lai, Juei‐Low Sung, George Papevangelou, Nicolaos Tassopoulos, Anastasia Roumeliotou‐Karayannis, Clive Richardson – 1 May 1985

Marie‐Laurence Roquet, Elie‐Serge Zafrani, Jean‐Pierre Farcet, Félix Reyes, Yvon Pinaudeau – 1 May 1985 – Pathological lesions of the liver were studied in 14 cases of hairy cell leukemia, a rare hematologic neoplasm involving numerous organs. Tumor infiltration of hepatic parenchyma was observed in all cases. Tumor cells were easily recognized by their cytological features, namely their “halo” appearance consisting of a clear rim of abundant cytoplasm surrounding uniform round or slightly indented nuclei.

David E. Moody, Lorna A. Taylor, Edward A. Smuckler – 1 May 1985 – We have used an immunohistochemical approach to study the lobular distribution of constitutive liver microsomal cytochrome P‐450. Cytochrome P‐450 isolated (10.3 nmoles per mg protein) from hepatic microsomes from untreated, mature male Sprague‐Dawley rats was used to produce antisera in rabbits.

Lawrence E. Gurian, Thomas M. Rogoff, Athol J. Ware, Robert E. Jordan, Burton Combes, James N. Gilliam – 1 May 1985 – We have evaluated the immunologic characteristics often associated with systemic lupus erythematosus in a series of patients with a variety of different liver diseases. Antibody to doublestranded DNA as measured by the Farr assay was detected frequently in patients with various forms of liver disease. No patient with liver disease, including those with a presumed immunologic etiology, was found to have antibody to double‐stranded DNA using more specific assays.