[Nerve growth factor auto-antibodies in children with various forms of mental dysontogenesis and in schizophrenia high risk group].

The level of autoantibodies (AAb) to nerve growth factor was evaluated in blood serum of 163 children with different forms of mental dysontogenesis of endogenic, residual-organic, psychogenic and deprivative origin. Significant elevation of the level of AAb was found in all forms of psychic dysontogenesis. The most significant elevation of the level of AAb (p < 0.01), as compared with the controls (45 children), was characteristic for endogenic forms of dysontogenesis (schizophrenia, early children's autism, schizotypic diathesis). The level of AAb was also found as an indicator of the acuteness of the pathologic state. Besides, its elevation was observed 1-2 weeks prior to the onset of the clinical exacerbation. Elevation of AAb level was also found in psychic dysontogenesis of residual-organic nature (children with perinatal encephalopathy), but it was not so significant as compared with the controls (p < 0.05%). The analysis in the age dynamics of children from this group revealed, that AAb level may serve as some prognostic index of the severity of psychic dysontogenesis. The level of AAb differs some states in schizotypic diathesis and deprivative dysontogenesis, which are clinically quite similar. The method for the estimation of serum AAb level may be proposed as screening in prophylactic medical examination of children from the first year of life under conditions of pediatric outpatient service for identification of risk-groups by psychic dysontogenesis to perform early special psychoprophylaxis.