Fatiguability and oxidative capacity of forelimb and hind limb muscles of dystrophic mice.

Abstract:

:Fatigue indices and succinic dehydrogenase (SDH) activities were determined in the extensor digitorum longus (EDL) and soleus muscles of the hind limb and the extensor carpi radialis longus of the forelimb in control and dystrophic mice aged 4 to 26 weeks. A good correlation was found between SDH activities and fatigue indices in muscles from normal mice. In the dystrophic (dy2J) mice, however, this correlation was not present. The EDL muscles from 26-week-old dy2J mice showed a much higher resistance to fatigue than age-matched controls but this was not accompanied by a significant change in SDH. The increased fatigue resistance in dy2J EDL appeared between 8 and 12 weeks of age and was temporally correlated with the onset of fused bursts of spontaneous activity in the hind limb muscles. Nevertheless, there was no conclusive evidence for a link among this spontaneous activity, oxidative enzyme capacity, and fatigue resistance.

journal_name

Exp Neurol

journal_title

Experimental neurology

authors

Parry DJ,Desypris G

doi

10.1016/0014-4886(85)90226-2

subject

Has Abstract

pub_date

1985-02-01 00:00:00

pages

358-68

issue

2

eissn

0014-4886

issn

1090-2430

pii

0014-4886(85)90226-2

journal_volume

87

pub_type

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