[The determination of the content of immunoglobulin isotypes in the tissues in suppurative-destructive diseases].

Low amounts of immunoglobulins of different classes may be measured by the red cell agglutination inhibition test with the red cells conjugated with the respective blood serum IgG and IgM and colostrum IgA isotypes. A feedback between IgM and IgG levels was detected in extracts of the tissues adjacent to the focus of inflammation during the necrotic phase of the process, whereas during the exudative phase the IgG/IgM ratio grows, probably at the expense of the IgM-IgG change over during lymphocyte maturation.