title: Levels of serum IgG against Porphyromonas gingivalis in patients with rapidly progressive periodontitis, rheumatoid arthritis and adult periodontitis.
abstract: Levels of serum IgG against Porphyromonas gingivalis cell sonicate were determined in patients with rheumatoid arthritis (RA) (n = 25), rapidly progressive periodontitis (RPP)(n = 25) and adult periodontitis (AP)(n = 15) and controls (HP)(n = 10) utilizing the ELISA technique. Comparison between groups showed no significant differences between the HP and RA groups and also between the RPP and AP groups. The increased levels of IgG in the RPP and AP groups were comparable. Significant differences in IgG levels were noted between HP and RPP (p<0.05) and between HP and AP (p<0.01). The differences between RA and RPP and between RA and AP were highly significant (p<0.0001). Thus it was revealed that the serum levels of IgG against P. gingivalis in RPP and AP patients were elevated, whereas the levels in RA patients were comparable to those in controls.
authors.affiliation: Department of Oral Pathology, Dental Faculty, University of Malaya, Kuala Lumpur, Malaysia.
authors.forename: Z
authors.initials: Z
authors.lastname: Yusof
authors.forename: S R
authors.initials: SR
authors.lastname: Porter
authors.forename: J
authors.initials: J
authors.lastname: Greenman
authors.forename: C
authors.initials: C
authors.lastname: Scully
mesh_terms: D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000276:immunology / Q000382:microbiology; D000907:Antibodies, Bacterial / Q000097:blood*; D001172:Arthritis, Rheumatoid / Q000276:immunology / Q000382:microbiology*; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D008875:Middle Aged; D010518:Periodontitis / Q000276:immunology / Q000382:microbiology*; D016966:Porphyromonas gingivalis / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D007074:Immunoglobulin G