DPP4 and apolipoprotein A-I deficiency: On the other hand, in individuals with hypoalphalipoproteinemia, subjects with AA genotype had the highest DPP4 concentration (119 [95.9–152.4] ng/mL) compared with AG (113.5 [92.0–142.9] ng/mL) and GG genotypes (114.6 [80.9–142.1], P = 0.042; Figure 3C); also, when compared with carriers of G allele (AG and GG genotypes) (113.8 [91.4–142.5] ng/mL, P = 0.013 vs. AA genotype; Figure 3D).