PLA2G6 and neurodegeneration with brain iron accumulation: Moreover, missense mutations in the Phospholipase A2 Group VI (PLA2G6) gene are causative to multiple neurodegenerative diseases, including INAD (infantile neuroaxonal dystrophy), NBIA (idiopathic neurodegeneration associated with brain iron accumulation) and PD14 [9–11,36].