The effect of (+)-decanoylcarnitine, a potent inhibitor of long-chain acylcarnitine transferase, was tested for its ability to inhibit hepatic ketogenesis both in the isolated perfused liver and in vivo in severely ketotic alloxan diabetic rats. In vitro the inhibitor caused an almost complete block in ketone body production. In vivo (+)-decanoylcarnitine caused a rapid reversal of ketosis under conditions where large doses of insulin had little effect. A combination of the two agents produced an even more striking fall in plasma ketone levels.


J. Denis McGarry, Daniel W. Foster


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