Different regulation of hepatic ketogenesis during starvation in rats and pigeons

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Abstract

The following effects of starvation on the disposal of (1-14C) oleate by isolated perfused rat and pigeon livers were observed:

  • 1.

    1. The percentage of oleate taken up which was converted to triglycerides and CO2 decreased, the percentage converted to ketone bodies increased in rat and pigeon liver.

  • 2.

    2. Oleate uptake decreased in pigeon but not in rat liver.

  • 3.

    3. As a result net formation of ketone bodies during starvation remained unchanged in pigeon liver but increased in rat liver.

  • 4.

    4. Reutilisation for fatty acid synthesis of C2-units generated from (1–14C) oleate was low, but dropped further during starvation in both species.

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