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Research Article| Volume 70, ISSUE 1, P36-47, July 1967

Abnormalities of serum monoamine oxidase in chronic liver disease

  • Charles M. McEwen Jr.
    Footnotes
    Affiliations
    From the National Institute of Arthritis and Metabolic Diseases, National Institutes of Health Bethesda, Md. U.S.A.

    From the United States Naval Hospital, National Naval Medical Center Bethesda, Md. U.S.A.
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  • Donald O. Castell
    Footnotes
    Affiliations
    From the National Institute of Arthritis and Metabolic Diseases, National Institutes of Health Bethesda, Md. U.S.A.

    From the United States Naval Hospital, National Naval Medical Center Bethesda, Md. U.S.A.
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  • Author Footnotes
    ∗ Present address: Sinai Hospital of Detroit, Detroit, Mich.
    ∗∗ Present address: United States Naval Hospital, Great Lakes, Ill.
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      Abstract

      Serum levels of monoamine oxidase were determined in 119 adults with acute and chronic liver disease. Elevated enzyme levels were found in patients with Laennec's cirrhosis, postnecrotic cirrhosis, and massive neoplastic replacement of the liver, but not during the acute phases of hepatitis or extrahepatic biliary obstruction. The increased enzyme activity could not be ascribed to hepatocellular necrosis or dysfunction. Positive correlations were found between increased enzyme activity and signs of portal hypertension and portal-systemic collateral circulation. Increased enzyme activity was most closely associated with hepatic fibrosis and “sinusoidal” hypertension.
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