nervous system
• tamoxifen-treated mice exhibit a small increase in axon diameter with increased occurrence of large axons compared with control mice
• however, normal myelinated axon density
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• increased disrupted NMJs in the EDL of 12 month old tamoxifen-treated mice indicating denervation and re-innervation with only a minimum number of NMJs showing partial denervation
• however, NMJs are normal at 6 months of age
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• neuromuscular junctions exhibit lower compound muscle action potential amplitude (expressed as root mean squared) in tamoxifen-treated mice
• however, amplitude decrement after 30 s of repetitive stimulation is normal
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homeostasis/metabolism
• 2.5-fold reduction in run distance
• quicker accumulation of electric shocks over time at high-intensity performance
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muscle
N |
• intrinsic skeletal muscle properties (muscle contractility or fatigability) are normal
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behavior/neurological
• 2.5-fold reduction in run distance
• quicker accumulation of electric shocks over time at high-intensity performance
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