ArticleClinical and experimental immunology2006
Agreement of anti-neutrophil cytoplasmic antibody measurements obtained from serum and plasma.
Article in Clinical and experimental immunology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed.
- Acetate ameliorates membranous nephropathy by modulating the immune response and podocyte function.BMC nephrology · 2026Article
- Activation of a Latent Epitope Causing Differential Binding of Antineutrophil Cytoplasmic Antibodies to Proteinase 3.Arthritis & rheumatology (Hoboken, N.J.) · 2023Article
- Discrimination and variable impact of ANCA binding to different surface epitopes on proteinase 3, the Wegener's autoantigen.Journal of autoimmunity · 2010Article
- An approach to the diagnosis and management of systemic vasculitis.Clinical and experimental immunology · 2010Review
- Antineutrophil cytoplasmic autoantibodies: how should the biologist manage them?Clinical reviews in allergy & immunology · 2008Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
Serum and plasma are used interchangeably to measure anti-neutrophil cytoplasmic antibodies (ANCA), even though the release of ANCA target antigens during the preparation of serum could affect ANCA assays and cause discrepancies between the results obtained from serum and plasma. To what extent ANCA test results obtained from serum agree and correlate with results from plasma remains unknown. Therefore, a comprehensive comparison was performed using serum and plasma samples which were collected in 175 patients with active Wegener's granulomatosis at enrollment of a recent randomized trial. These paired serum and plasma samples were subjected to parallel ANCA testing by standard indirect immunofluorescence on ethanol-fixed neutrophils, a direct enzyme-linked immunoassay (ELISA) for proteinase 3 (PR3)-ANCA and myeloperoxidase (MPO)-ANCA, and two different capture ELISAs for PR3-ANCA. The concordance of categorical serum and plasma ANCA results was assessed using kappa-coefficients. These were > 0.8 for all assays, indicating a very good concordance between positive and negative serum and plasma results. Spearman's correlation coefficients for serum and plasma PR3-ANCA values obtained by direct ELISA and both capture ELISAs were > or = 0.95 (P < 0.0001). Our study shows that serum and plasma samples can be used interchangeably for measuring ANCA.
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