title: Quantitative determination of rheumatoid factors in serum and synovial liquid of patients with rheumatoid arthritis using lyophilized standard products.
abstract: The rheumatoid factors constitute one of the major autoantibodies in rheumatoid arthritis (RA). In this study, for the quantitative determination of the RF IgM class, in serum and synovial liquid of patients with RA and JRA, we used the hemagglutination principle and both liquid and lyophilized reagents. The results we obtained demonstrated the superiority regarding the stability, the reproducibility and the possibility of micromethod standardization with lyophilized reagent.
authors.forename: V
authors.initials: V
authors.lastname: Olaru
authors.forename: A
authors.initials: A
authors.lastname: Maican
authors.forename: A
authors.initials: A
authors.lastname: Ionescu
authors.forename: A
authors.initials: A
authors.lastname: Petculescu
authors.forename: M
authors.initials: M
authors.lastname: Petcovici
mesh_terms: D000293:Adolescent; D000328:Adult; D000372:Agglutination Tests / Q000379:methods; D001171:Arthritis, Juvenile / Q000276:immunology; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D002648:Child; D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005612:Freeze Drying; D006801:Humans; D012217:Rheumatoid Factor / Q000032:analysis*; D013582:Synovial Fluid / Q000276:immunology*
chemical_list: D012217:Rheumatoid Factor