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  • Serum
  • Analysis of SIgA antibodies in serum may be a convenient and more versatile means to investigate the "mucosal connection" in RA compared with analyses in mucosal fluid samples. (biomedcentral.com)
  • ELISA
  • Immunodiffusion (ID) detects high affinity antibodies, immunofluorescence (IIF) moderate and high affinity antibodies, and enzyme linked immunosorbent assay (ELISA) low and high affinity antibodies. (bmj.com)
  • A less marked, similar increase was found for IgG and IgM anticardiolipin antibody titre, whereas the frequency of anti-double-stranded DNA antibodies (by ELISA) exhibited a transient rise (up to 16.7%) at 54 weeks and dropped to 0% at 78 weeks. (biomedcentral.com)
  • Relapse
  • In addition, assay results may reflect disease activity, correlate with organ involvement, or predict relapse, thus allowing pre-emptive treatment. (bmj.com)
  • assays
  • Solid phase assays for detection of these antibodies are now widely used and much work has been done to improve their quality and reproducibility. (bmj.com)
  • Prevalence
  • Therefore, the information obtained from any test will reflect the types of antibody detected, the prevalence of the disease in the population being tested, and the question being asked of the test. (bmj.com)