CDKN1B and posterior cortical atrophy: For example, SNPs located in genes such as caspase‐3 (CASP3), caspase‐9 (CASP9), hepatocyte nuclear factor 1‐beta (HNF1B), cancer susceptibility 8 (CASC8) and cyclin‐dependent kinase inhibitor 1B (CDKN1B) were implicated in regulation of cell apoptosis, the cell cycle, metabolism and cell division and were shown to be correlated with PCa susceptibility.9, 10