behavior/neurological
• mice show increased open-field locomotor activity, which is 2-fold greater than wild-type at 16 weeks and increased locomotor activity in activity chambers
• in elevated-plus maze, mice aged 9-12 weeks spend more time on the open arms compared to wild-type animals
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• starting at 5-7 weeks of age, mice show increased open-field locomotor activity, which is 2-fold greater than wild-type at 16 weeks
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nervous system
• axonal swelling is observed in neurons in the amygdala and spinal cord of 3- to 6-month old mice; affected axoplasm is filled with numerous abnormally clustered mitochondria and lysosomes, and skeletal components are disorganized
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