ANPEP and infection: After infection, APN was significantly increased only in males (Figure 4A), in individuals aged 65 years and above (Figure 4D) and in overweight individuals (Figure 4G); AdipoR2 mRNA levels were higher in females (Figure 4C) and individuals under 65 years of age (Figure 4F), but not significantly elevated across any BMI subgroups (Figure 4I).