ATG5 and dementia: Plasma levels of ATG5 were significantly elevated in patients with dementia (149.3 ± 7.5 ng/mL) or MCI (152.9 ± 6.9 ng/mL) compared with the control subjects (129.0 ± 4.1 ng/mL) by Mann-Whitney U-test (p = 0.034, p = 0.016, respectively).