APOA1 and major depressive disorder: As compared to HCs, MDD patients were characterized by two significantly increased inflammation-related factors (NEUT%, p=0.033; BASO, p=0.030), along with eight significantly decreased inflammation-related factors (TP, P=0.001; GLB, p=0.002; EO%, p=0.006; APN, p=0.011; TC, p=0.023; APOA1, P=0.016; APOB, p=0.015; AAT, p=0.033).