The mean staining scores for NDP, BPH, NAC, HGPIN, PCa, and Mets were 141.23 ± 2.43, 140.66 ± 2.42, 139.91 ± 2.52, 151.76 ± 2.88, 135.72 ± 1.45, 125.55 ± 2.63 (Figure 1A). Here, NDP is linked to benign prostatic hyperplasia.