PLA2G7 and dementia: We found that DC, DR2, DR4, and DR8 in patients with dementia were positively correlated with MMSE scores (r = 0.952, r = 0.977, r = 0.849, r = 0.403, p < 0.05), while AC and Lp-PLA2 were negatively correlated with MMSE scores (r = −0.901, r = −0.964, p < 0.05).