Antibody reactivity in cerebrospinal fluid and serum against the insulin-insulin-like growth factor 2 (INS-IGF2) protein is associated with psychotic symptomatology in patients with schizophrenia or related psychosis.
OBJECTIVES: Evidence has accumulated that an autoimmune-mediated process may underlie development of schizophrenia, and in two recent studies, we found increased antibody reactivity against the insulin receptor-A (INSR-A) and insulin-like growth factor 1 receptor (IGF1R) and their ligands (insulin and insulin-like growth factor 1) in ce.....