For ELISA, the dementia group showed a trend of lower Aβ1-42/Aβ1-40 (0.051 ± 0.021 vs. 0.062 ± 0.022, p = 0.053) and higher t-Tau (594 ± 502 vs. 313 ± 145, p = 0.028) and p181Tau (81 ± 46 vs. 56 ± 22, p = 0.034) than the MCI group. The gene discussed is MAPT; the disease is dementia.