PON1 and posterior cortical atrophy: PON1 activity in the control group was 83.9 ± 34.5 IU/L (n = 60, median 76.0 IU/L, 24.3–200.6 IU/L) while in the PCa group pre-radiotherapy was 81.3 ± 41.6 IU/L (n = 56, median 76.1 IU/L, 20.0–169.9 IU/L).