Hepatic mitochondrial oxidative metabolism and lipid peroxidation in experimental hexachlorobenzene‐induced porphyria with dietary carbonyl iron overload

Edward S. Feldman, Bruce R. Bacon – 1 May 1989 – Both human porphyria cutanea tarda and experimental hexachlorobenzene‐induced porphyria are associated with hepatic injury and are potentiated by excess hepatic iron. The mechanisms whereby cellular injury occurs and the synergistic role of iron overload are unknown. In the present experiments, we studied hepatic mitochondrial function and lipid peroxidation in rats with hexachlorobenzene‐induced porphyria in which iron loading was achieved by dietary carbonyl iron supplementation.

Amiodarone hepatotoxicity: Prevalence and clinicopathologic correlations among 104 patients

James H. Lewis, Richard C. Ranard, Anthony Caruso, Lawrence K. Jackson, Florabel Mullick, Kamal G. Ishak, Leonard B. Seeff, Hyman J. Zimmerman – 1 May 1989 – The prevalence of apparent amiodarone‐related hepatic injury in 104 patients followed prospectively is compared to that reported in the literature. Asymptomatic elevation of serum aminotransferase levels was detected in approximately one‐fourth of the patients, a figure similar to the average of reported cases. The frequency of extrahepatic organ toxicity was increased in patients with elevated levels.

Presence of covalently bound metabolites on rat hepatocyte plasma membrane proteins after administration of isaxonine, a drug leading to immunoallergic hepatitis in man

Jacqueline Loeper, Véronique Descatoire, Gilles Amouyal, Philippe Lettéron, Dominique Larrey, Dominique Pessayre – 1 May 1989 – Isaxonine and several other drugs transformed by cytochrome P‐450 into reactive metabolites apparently lead to immunoallergic hepatitis in man. Protein epitopes modified by the covalent binding of the metabolites have been proposed as possible targets for the immune response. The purpose of this work was to determine whether covalently bound metabolites are indeed present on hepatocyte plasma membrane proteins.

Biopsy diagnosis of well‐differentiated hepatocellular carcinoma based on new morphologic criteria

Fukuo Kondo, Katsunori Wada, Yoshinobu Nagato, Tohru Nakajima, Yoichiro Kondo, Noboru Hirooka, Masaaki Ebara, Masao Ohto, Kunio Okuda – 1 May 1989 – Nodular hepatic lesions detected in 123 patients with chronic liver diseases were subjected to ultrasonically guided needle biopsy. Of these, 94 cases were diagnosed as hepatocellular carcinoma of a moderately or poorly differentiated type with classical histologic features of hepatocellular carcinoma.

Liver transplantation: Intraoperative changes in coagulation factors in 100 first transplants

Jessica H. Lewis, Franklin A. Bontempo, Sami A. Awad, Yoo Goo Kang, Joseph E. Kiss, Margaret V. Ragni, Joel A. Spero, Thomas E. Starzl – 1 May 1989 – Six intraoperative blood samples were obtained at intervals from each of 100 individuals undergoing their first liver transplants. The patients fell into the following diagnostic categories: postnecrotic cirrhosis 28, primary biliary cirrhosis 20, sclerosing cholangitis 19, miscellaneous diseases 14, carcinoma/neoplasia 12 and fulminant hepatitis 7. Coagulation factor values in the initial (baseline) blood samples varied by patient diagnosis.

Impaired sulfoxidation in patients with primary biliary cirrhosis

Bruce F. Scharschmidt, John R. Lake – 1 April 1989 – An impaired sulfoxidation pathway has been implicated in the pathogenesis of chlorpromazine‐induced hepatotoxicity. Since some patients with chronic chlorpromazine‐induced cholestasis may have features of primary biliary cirrhosis, we studied the ability to sulfoxidate the amino acid analogue S‐carboxymethyl‐cysteine in 44 patients with primary biliary cirrhosis and in two control groups—one without liver disease and one with a variety of liver diseases other than primary biliary cirrhosis.

The effect of several sex steroid hormones on the growth rate of three morris hepatoma tumor lines

Julius Erdstein, Steven Wisebord, Shaindel Y. Mishkin, Seymour Mishkin – 1 April 1989 – Morris hepatoma 44, whose growth is sensitive to thyroid hormones and prolactin, contains specific receptors for these hormones. In the present experiments, male Buffalo rats bearing Morris hepatoma 7787 were studied to determine the effects of several sex steroid hormones. Castration 1 week postimplantation inhibited tumor growth relative to controls (‐53%). Replacement with testosterone propionate (1 mg per day s.c.

Vitamin E deficiency in primary biliary cirrhosis: Gastrointestinal malabsorption, frequency and relationship to other lipid‐soluble vitamins

Santiago J. Muñoz, James E. Heubi, William F. Balistreri, Willis C. Maddrey – 1 April 1989 – In contrast to deficiencies of vitamins A, D and K, little is known of the prevalence, clinical manifestations and mechanisms of vitamin E deficiency in adult patients with cholestasis. We measured serum vitamin E levels in 45 patients with primary biliary cirrhosis, 20 with primary sclerosing cholangitis, 9 with cryptogenic cirrhosis and 12 with alcoholic cirrhosis.

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