Distribution of patient frequencies for ADAMTS-4 and BMP-1 IHC staining in their kidney biopsy samples (positive IHC staining frequency is presented) in each of six separate observation areas (PTC, INT, GC, BW, PXT, and DT) for CTRL and groups with chronic kidney disease (NKB and TXCI groups, both separately presented as CKD 1–2 or CKD 3–5 stage) is shown in Figure 2. This evidence concerns the gene ADAMTS4 and chronic kidney disease.