[Immune complexes in multiple sclerosis and experimental allergic encephalomyelitis].

Immune complexes in the blood serum were determined in patients with disseminated sclerosis and in dogs in the process of experimental allergic encephalomyelitis. In disseminated sclerosis the existence of immune complexes was found in the exacerbation period and their absence in remissions. In animals with clinical signs of experimental allergic encephalomyelitis the immune complexes began to be established in the period of sensitization and attained the maximum in the preparalytic and paralytic period. In animals without clinical signs, the immune complexes were determined later and in insignificant amounts. The role of immune complexes in the pathogenesis of exacerbations in disseminated sclerosis and development of experimental allergic encephalomyelitis as factors involved in the disturbances of permeability in the hematoencephalic barrier is discussed.