C1QTNF3 and Alzheimer disease: In the AD group, the plasma CTRP3 was negatively correlated with MMSE score (rs = −0.268, p = 0.002) and MoCA score (rs = −0.270, p = 0.001), while positively correlated with ADL score (rs = 0.328, p < 0.001) and CDR‐SB score (rs = 0.239, p = 0.005) (Figure 1A–D).