E.g., among the 370 hypomethylated CpG islands and shores found in the PCa samples provided by clinical center No. 2, we found 32 pseudogene loci, e.g., UBE2CP5, RNY5P6, OR52P2P, OR7E1P, and RPS17P7, and 19 miRNA and 3 lncRNA loci which are hypomethylated. The gene discussed is RPS17P7; the disease is posterior cortical atrophy.