Systemic immunity was studied in patients with chronic generalized parodontitis. This group of patients had distinct changes in immunologic system: depression of T- and stimulation of B-cellular immunity without accumulation of plasma cells and initiation of effective humoral response. Increased peripheral blood number of lymphocytes expressing induction of apoptosis CD95 receptors and ligand for this receptor CD95L (Fas-L) can lead to intensification of lymphocyte apoptosis and may be the reason for T-cell deficit development. The results of the study confirm the important role of immune system disturbances in pathogenesis of chronic generalized parodontitis.
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