title: [EA rosettes in patients with progressive chronic polyarthritis].
abstract: One subpopulation of human lymphocytes contains Fc-receptors that form rosettes with antibody (IgG) coated human erythrocytes (EA-rosettes). On the average 8.9% of the lymphocytes from patients with rheumatoid arthritis (RA) form EA-rosettes compared with 5.3% in controls. When the lymphocytes were washed three times the EA-rosettes increased to 21.2% for RA patients and 9.5% for controls. This procedure thus reveals more Fc-receptors on the lymphocytes from RA patients than on those from healthy controls. The number of T-lymphocytes was normal in RA patients and controls, no matter how many times the lymphocytes were washed.
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D007104:Immune Adherence Reaction; D007141:Immunoglobulin Fc Fragments / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D008214:Lymphocytes / Q000276:immunology*; D008875:Middle Aged; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D007141:Immunoglobulin Fc Fragments; D007074:Immunoglobulin G
vernacular_title: EA-Rosetten bei Patienten mit progredient chronischer Polyarthritis