On further comparison, the post hoc test (LSD) showed that there was a high significant difference between diffuse astrocytomas and anaplastic astrocytomas, and anaplastic astrocytomas and GBMs as regard DJ-1 staining intensity (P = 0.0001) (Figure 4a, 4b and 4c). The gene discussed is PARK7; the disease is diffuse astrocytoma.