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  • Title: Influence of liver injury on the catecholamine metabolism in rat brain.
    Author: Kaneyuki T, Shohmori T.
    Journal: Acta Med Okayama; 1984 Apr; 38(2):93-9. PubMed ID: 6145297.
    Abstract:
    The present study investigated the brain catecholamine metabolism of rats with liver injury induced either by malnutrition or with CCl4. In the malnutrition group, the plasma tyrosine concentration was low, while it showed a tendency to be high in the cerebral cortex. Dopamine concentrations were low in both the cerebral cortex and diencephalon. Norepinephrine concentrations were low in the cerebral cortex, striatum and diencephalon. Tyrosine hydroxylase activity was elevated while monoamine oxidase activity was decreased in the striatum. In the CCl4 group, tyrosine concentrations in the plasma and cerebral cortex did not change. The dopamine concentration in the cerebral cortex increased five days after, and the norepinephrine concentration in the diencephalon increased 24 h after the last administration of CCl4. These data suggest that catecholaminergic neurons in the brain may be substantially affected by liver injury. It may be considered that malnutrition disturbs brain development, particularly in young rats.
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