MPO and type 2 diabetes mellitus: The MPO MFI inter-group differences between HDNs and LDNs from HVs and T2D, respectively, were not statistically significant, whereas in both HVs and patients with T2D, the MPO MFI were highr in LDNs than HDNs (HVs by 3.2-fold; p < 0.001, and patients with T2D by 15.7-fold; p < 0.001).