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  • Title: Endotoxin modulates arachidonic acid-induced glycogenolysis in the perfused rat liver.
    Author: Kimura K, Moriyama M, Nishisako M, Kannan Y, Shiota M, Sugano T.
    Journal: Horm Metab Res; 1998 Apr; 30(4):178-81. PubMed ID: 9623630.
    Abstract:
    Effects of endotoxin on arachidonic acid (AA)-induced hepatic glycogenolysis were examined in perfused rat liver. In normal rat liver, infusion of AA increased oxygen consumption and glucose production concurrently. In rats injected with lipopolysaccharide (LPS) 6 h before, AA increased glucose production but suppressed oxygen consumption. The changes in LPS-injected rat were abolished by a thromboxane (Tx) A2 receptor antagonist. The release of Tx B2 by AA increased after LPS-injection. These results suggest that priming of hepatic macrophage by endotoxin in vivo enhances Tx synthesis, resulting in modulating hepatic glycogenolysis.
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