title: IgG subclasses in human periodontal disease: III. Serum concentrations of IgG subclass immunoglobulins and circulating immune complexes.
abstract: No quantitative changes in serum IgG subclass concentrations could be correlated clinically with periodontal disease, despite evidence of restrictive IgG sublcass antibody responses in inflamed gingiva. Serum from periodontal patients also lacked circulating immune complexes.
mesh_terms: D000917:Antibody Formation; D000936:Antigen-Antibody Complex; D001769:Blood; D003165:Complement System Proteins / Q000276:immunology; D005891:Gingivitis / Q000276:immunology; D006801:Humans; D007074:Immunoglobulin G / Q000145:classification*; D007136:Immunoglobulins / Q000032:analysis*; D010510:Periodontal Diseases / Q000276:immunology*; D010518:Periodontitis / Q000276:immunology
chemical_list: D000936:Antigen-Antibody Complex; D007074:Immunoglobulin G; D007136:Immunoglobulins; D003165:Complement System Proteins