An Italian FFPE-based cohort (qMSP and IHC; PCa/adjacent-paired n = 56) confirmed that GSTP1 methylation was significantly more frequent in PCa (51/56) than in control tissues (3/56) and that GSTP1 expression appeared to be regulated by promoter methylation (p < 0.001) [20]. This evidence concerns the gene GSTP1 and posterior cortical atrophy.