It was found that an increase in the adjusted odds ratios (OR) was present for the occurrence of DKD in relation to resolvin D1 (p < 0.001; Wald test), the PCDH9 genotype (p = 0.0016; Wald test), the LY6D genotype (p < 0.001; Wald test), and the ALDH1L1 genotype (p = 0.0031; Wald test). Here, PCDH9 is linked to diabetic kidney disease.