In the other hand, optical density is more elevated in PC than in BPH (c-IAP-2, ILP, NAIP, Survivin, XIAP, NF-kB, p-Elk-1 and p-ATF-2); but only survivin and NF-kB increased with Gleason grade. This evidence concerns the gene NFKB1 and benign prostatic hyperplasia.