PURPOSE: A marker is provided to exactly examine the central nerve disorder, the self-immunity or the reduced immune disorder. CONSTITUTION: The marker for the diagnosis which contains the peptide or its derivatives separated from the human tissues and the body fluids is provided in which the peptide is selected among the group formed by the opioid-similar peptide and the opioid-derived peptide, and derived from the casein. The disorder is the autism spectral disorder selected among the group formed by the autism, the disorder of a wide growth, the Asperfer's syndrome, the ADD, and the ADHD.
MARKER FOR PERSON DISORDER DIAGNOSIS