muscle
• muscles contain occasional patches of pale tissue which are primarily connective tissue
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• when mice are injected with the diazo dye EBD, dye is taken up by damaged muscle fibers to varying degrees, but preferentially into the hindlimb; uptake occurs because of focal breakdown of plasmalemma which is an early event in necrosis
• muscles are not stained homogeneously, but streaks of dye representing damaged muscle fibers are observed in the muscle fibers of the diaphragm and gluteus maximus; damage is less severe than in Fgf2/Fgf6/Dmd triple mutants
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• mutants show dystrophic changes to the muscle fibers, although less severely than Fgf2/Fgf6/Dmd triple mutants
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