Jan 1, 1976

Muscle metabolism investigated at rest and during exercise and/or pharmacological treatment by vasodilators

Il Farmaco; edizione scientifica
G BenziR Villa


The Ruderman's preparation was utilized to investigate in situ some aspects of the muscular metabolism both at rest and during submaximal exercise upon bilateral sciatic nerve stimulation, and/or during perfusion with some vasodilators: papaverine, caffeine, nicergoline, bamethan. O2 and glucose uptake, the production of lactate and the glycogen level of the muscle were studied. The availability of acetoacetate modifies the muscular metabolism; other fuels (e.g. the ketone body itself) are probably used for energetic purposes both under basal conditions and during exercise, even in the presence of high glycogen concentrations in the tissues. Some vasodilators increase the utilization of other fuels in replacement of glycogen (e.g. nicergoline), some others increase the ulilization of glycogen itself (e.g. bamethan and caffeine), whereas others (e.g. papaverine) do not effect the biochemical parameters studied. The present data confirm the importance both of the substrate availability and of the power of drugs to interfere with some enzymatic systems which modulate the utilization of available substrates, especially during exercise.

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Mentioned in this Paper

Metabolic Process, Cellular
DRUG Screen Quant Caffeine
Structure of Sciatic Nerve
Vasodilator Agents

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