behavior/neurological
• at 18, but not 4, months
|
muscle
• in the hind limb and abdomen of older mice
• however, muscle strength in a grip test is normal
|
nervous system
N |
• mice exhibit normal neuromuscular junctions with no denervation
|
cellular
N |
• mice exhibit normal basal and tunicamycin-induce unfolded protein response
|