The lack of association between cPLA2, CARS and SRS is not in good agreement with certain studies which prove that deregulation of lipid metabolism due to PLA2 over activation is associated with nervous system dysfunction and cognitive impairment [30, 32, 34, 35] which might be attributed to the difference in ethnicity of the present study autistic participants. This evidence concerns the gene PLA2G4A and Cognitive impairment.