Bilirubin Mono‐ and diglucuronide formation by human liver In vitro: Assay by high‐pressure liquid chromatography

Jayanta Roy Chowdhury, Namita Roy Chowdhury, George Wu, Rivka Shouval, Irwin M. Arias – 1 November 1981 – Bilirubin diglucuronide, the major pigment in human bile is formed in two steps. Bilirubin is converted to bilirubin monoglucuronide by transfer of the glucuronosyl moiety of uridine diphosphoglucuronic acid catalyzed by the microsomal enzyme, uridine diphosphoglucuronate glucuronosyl transferase (UDP glucuronyl transferase, EC 2.4.1.17).

Effect of fasting on organic anion uptake by isolated rat liver cells

Yannick Laperche, Anne‐Marie Preaux, Gerard Feldmann, Jean‐Louis Mahu, Pierre Berthelot – 1 November 1981 – In order to determine if the delayed clearance of organic anions observed in vivo after fasting can be related to an alteration of cell membrane carriers, kinetics of sulfobromophthalein (BSP) uptake were determined in isolated rat liver cells obtained from 48‐hr starved rats. Surprisingly, in fasted rats the existence of two carriers can be directly revealed by classical kinetic plots.

Physiologic cholestasis II: Serum bile acid levels reflect the development of the enterohepatic circulation in rats

William M. Belknap, William F. Balistreri, Frederick J. Suchy, Philip C. Miller – 1 November 1981 – We have shown that serum bile acid concentrations are elevated in human infants reflecting physiologic immaturity of the enterohepatic circulation. To define further the ontogeny of bile acid metabolism in mammals, we examined maturational changes in the serum concentration of total cholate conjugates by radioimmunoassay in fetal, neonatal, suckling, and mature Sprague‐Dawley rats.

Chronic non‐A, non‐B hepatitis: Ultrastructural and serologic studies

Francine Marciano‐Cabral, Karen L. Rublee, Robert L. Carithers, Edward A. Galen, Thomas J. Sobieski, Guy A. Cabral – 1 November 1981 – Liver biopsies from five patients with chronic non‐A, non‐B (NANB) hepatitis were examined by electron microscopy for hepatocellular alterations. Circular fused membranes were observed within the cytoplasm of hepatocytes of four of the patients. Aggregates of intranuclear particles, measuring 22 ± 2 nm in diameter, were also seen in two of the biopsies in which fused membranes were identified.

Experimental HBV and δ infections of chimpanzees: Occurrence and significance of intrahepatic immune complexes of HBcAg and δ antigen

Mario Rizzetto, Maria G. Canese, Robert H. Purcell, William T. London, L. David Sly, John L. Gerin – 1 November 1981 – The occurrence and pathogenetic role of intrahepatic deposits of immunoglobulins in experimental viral infection have been evaluated by determining with immunofluorescence their capacity to fix complement in vitro [in vitro complement fixation (VCF)]. Liver biopsies from chimpanzees chronically or acutely infected with hepatitis B virus or the hepatitis B surface antigen (HBsAg)‐associated δ agent were used in the study.

Alcoholic liver disease: I. Interrelationships among histologic features and the histologic effects of prednisolone therapy

John K. Boitnott, Willis C. Maddrey – 1 November 1981 – Interrelationships among histologic features of alcoholic liver disease were studied in 24 chronic alcoholics who took part in a double‐blind, controlled trial of prednisolone vs. placebo therapy. Each patient underwent liver biopsy at the start and upon completion of the 1‐month study.

Globular hepatic amyloid–‐an unusual morphologic presentation

Gary C. Kanel, Toshikazu Uchida, Robert L. Peters – 1 November 1981 – Hepatic amyloid, when identified, is usually located in the sinusoids, portal tracts, and arterioles. We report 14 cases of hepatic amyloidosis where eosinophilic globules having the histochemical and electron microscopic features of classic amyloid were found. The globules were round to oval, 5 to 40 μm in diameter, and were found within the space of Disse as well as aggregated within the portal tracts.

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