[Neurotropic activity of the gamma-globulin fraction in the serum of schizophrenic patients].

The report is concerned with the influence of the blood sera of schizophrenic patients on the electric activity of neurons in snails and its 3 fractions containing respectively nonprotein compounds, gamma-globulins and the remaining proteins. It was established that the amount of neurotropic activity only of gamma-globulin fractions do not differ significantly from the respective figures of the blood sera of schizophrenic patients. In this connection the authors come to the conclusion of a possible immune nature of the neurotropic factor in the blood sera of schizophrenic patients.