Using the TCGA and FerrDb databases [35], prolyl 4-hydroxylase subunit beta (P4HB) and prostaglandin–endoperoxide synthase 2 (PTGS2) were detected to be potential biomarker for PCa patients from the perspective of ferroptosis, where research to date has not yet determined the impact of P4HB on PCa patients. The gene discussed is PTGS2; the disease is posterior cortical atrophy.