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. 1978 Jan 15;170(1):17–22. doi: 10.1042/bj1700017

The pentose phosphate pathway in regenerating skeletal muscle.

K R Wagner, F C Kauffman, S R Max
PMCID: PMC1183856  PMID: 629775

Abstract

1. The activities of the oxidative enzymes (glucose 6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase) and of the non-oxidative enzymes (transaldolase, tranketolase, ribose 5 phosphate isomerase and ribulose 5-phosphate 3-epimerase) of the pentose phosphate pathway were measured at various times during the first 24h of skeletal-muscle regeneration after administration of Marcaine, a mytoxic local anesthetic. 2. The activities of the oxidative enzymes increased after Marcaine injection and rose to 9 times control activities by 24h. 3. The activities of all non-oxidative enzymes were increased after Marcaine administration, but to a much smaller extent than the oxidative enzymes (1.1-1.7-fold). 4. Histochemical analysis localized glucose 6-phosphate dehydrogenase activity within muscle fibres of control and Marcaine-treated muscles. 5. Cycloheximide or actinomycin D prevented the increase in oxidative enzyme activities, suggesting a requirement for synthesis of protein and RNA.

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Selected References

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