[Immunological changes in Schönlein-Henoch patients].

The level of serum IgI, A, M, complement titre and circulation immune complexes were studied under clinical conditions of 17 patients with Schönlein-Henoch, active phase. The following changes were established as compared with the control, healthy subjects: four-times increased values of the circulating immune complexes, elevated IgA serum level, and IgG--to a lesser degree and reduced titre of the complement. Prognosis is more unfavourable in patients with extremely high values of the circulating immune complexes and complement consumption.