HP and chronic kidney disease: There was nearly a 5-fold increase in the iron-stained area in Hp 2-2 DN renal sections (16.86 ± 4.25%) compared with DM Hp 1-1 sections (3.03 ± 1.48%, p < 0.001) or compared with nonDM CKD Hp 2-2 sections (2.36 ± 1.51%, p < 0.001, Figures 2(a) and 2(b)).