[Autoantibodies against nerve tissue proteins long after cranio-cerebral injury]

20 samples of serum of patients with remote consequences of brain trauma were tested to detect autoantibodies (a-AB) against brain proteins S-100 and NKP. Essential pathology was not found out by standard solid-phase immunoassay. The original method was used to detect a-AB to the whole complex of antigen determinants. Using this method the elevation of a-AB against S-100 and NKP was shown at 16 cases. The disturbance of idiotype-antiidiotype regulation was revealed at this group of patients. It is suggested that insufficient level of corresponding antiidiotypes creates the conditions for autoimmune aggressor of a-AB against brain tissue.