Increase in Ornithine Decarboxylase Activity Caused by Hepatocyte Growth Factor in Primary Cultured Adult Rat Hepatocytes

Ikko Higaki, Isao Matsui‐yuasa, Masanobu Terakura, Shuzo Otani, Hiroaki Kinoshita – 1 January 1993 – The effect of hepatocyte growth factor on ornithine decarboxylase activity was studied in primary cultured adult rat hepatocytes. Ornithine decarboxylase activity was increased 3 hr after the addition of hepatocyte growth factor and remained at a high level until 12 hr; thereafter it decreased, and it returned to the control level by 24 hr. Enzyme activity began to increase with 1 ng/ml hepatocyte growth factor and reached its maximum with 5 ng/ml hepatocyte growth factor.

Effect of Dipyridamole on Kidney Function in Cirrhosis

Josep Llach, Pere Ginès, Vicente Arroyo, Joan Manuel Salmerón, Angels Ginès, Joan Rodés, Wladimiro Jiménez, Joan Gaya, Francisca Rivera – 1 January 1993 – Adenosine is a potent endogenous renal vasoconstrictor. To investigate the sensitivity of the renal circulation to adenosine in cirrhosis, we evaluated kidney function and vasoactive hormones in 20 patients with cirrhosis before and after administration of dipyridamole (0.4 mg/kg, intravenously), a drug that increases extracellular levels of adenosine.

The Alcohol‐altered Liver Membrane Antibody and Hepatitis C Virus Infection in the Progression of Alcoholic Liver Disease

Shujiro Takase, Mikihiro Tsutsumi, Hiromu Kawahara, Nobuo Takada, Akira Takada – 1 January 1993 – Progression of alcoholic liver disease is closely related to drinking habits. However, prognosis of alcoholic liver disease is not determined just by drinking habits, but also by other factors. In this study, the roles of alcohol‐altered liver membrane antibody and hepatitis C virus infection were analyzed in alcoholic patients who were followed up for various lengths of time.

Glycine Protects Hepatocytes from Injury Caused by Anoxia, Cold Ischemia and Mitochondrial Inhibitors, But Not Injury Caused by Calcium Ionophores or Oxidative Stress

Diane C. Marsh, Paul K. Vreugdenhil, Vivian E. Mack, Folkert O. Belzer, James H. Southard – 1 January 1993 – Isolated hepatocytes, suspended in an organ preservation solution, can be preserved at 4°C for up to 6 days. After preservation, normothermic‐normoxic incubation causes loss of hepatocyte viability. The addition of 3 mmol/L glycine to the rewarming medium prevents the loss of viability. In this study we investigated the cytoprotective effects of glycine under many conditions known to cause hepatocellular injury to understand the mechanism of cold‐induced injury in the liver.

Vanishing Bile Duct Syndrome: A Possible Mechanism for Intrahepatic Cholestasis in Hodgkin's Lymphoma

Stefan G. Hubscher, Matthew A. Lumley, Elwyn Elias – 1 January 1993 – A syndrome of idiopathic intrahepatic cholestasis occurs in some patients with Hodgkin's lymphoma. The underlying mechanism is poorly understood. In this paper we describe three patients with Hodgkin's lymphoma in whom severe intrahepatic cholestasis of unknown pathogenesis developed. In two cases jaundice was the presenting symptom; all three patients died with intractable liver damage.

Biliary Copper Excretion in Acutely and Chronically Copper‐loaded Rats

Masaru Harada, Shotaro Sakisaka, Masao Yoshitake, Satoshi Shakadoh, Kazuhisa Gondoh, Michio Sata, Kyuichi Tanikawa – 1 January 1993 – Biliary copper excretion was examined in rats with acute, continuous and chronic copper loads. Copper was excreted into bile, and the concentration peaked 40 min after a venous injection of copper sulfate (127 ng/gm body weight). The excretion was significantly inhibited by colchicine. Therefore some copper may be transported in hepatocytes by a vesicular pathway and excreted into bile.

Transmission of hepatitis C: Sexual, vertical or exclusively blood‐borne?

Nancy Bach, Henry C. Bodenheimer – 1 December 1992 – Serum samples from eight pregnant women and their offspring were studied by nested polymerase chain reaction (PCR) for detection of hepatitis C virus (HCV) RNA to evaluate mother‐to‐child transmission of this virus. The mothers were all infected with human immunodeficiency virus (HIV); none showed symptoms of HCV infection. Anti‐HCV antibodies were tested for by recombinant immunoblot assay. HCV viral sequences were found in five of the mothers and four of eight children, three of them at birth.

Role of mesenchymal cell populations in porcine serum‐induced rat liver fibrosis

Ekapot Bhunchet, Kenjiro Wake – 1 December 1992 – The role of liver mesenchymal cell populations in porcine serum‐induced rat liver fibrosis were studied morphologically and immunohistochemically. Fiveweek‐old rats were intraperitoneally injected with porcine serum twice a week and examined at various intervals between 3 and 24 wk after the initial injection. At an early phase, numbers of fibroblasts and extracellular matrix increased in the walls of central veins and in portal and capsular connective tissues.

Rapid and marked induction of hepatocyte growth factor during liver regeneration after ischemic or crush injury

Masahiro Hamanoue, Kouichi Kawaida, Sonshin Takao, Hisaaki Shimazu, Sumihare Noji, Kunio Matsumoto, Toshikazu Nakamura – 1 December 1992 – Liver injuries induced by ischemia or physical trauma are characterized by noninflammatory damage frequently observed in a clinical setting. When the liver of rats was injured by ischemic treatment or physical crushing, necrotic tissue degeneration occurred in several sites of lobulus within 24 hr.

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