TET1 and posterior cortical atrophy: Among 366 PCa patients for which NOR-TMA were analyzed, ten (3%) exhibited at least one NOR-TMA spot with high TET1 expression, 181 (50%) at least one NOR-TMA spot with moderate TET1 expression, and 175 (48%) exhibited only TET1-negative NOR-TMA spots (Fig. 1C.4).