Evidence map›Paper›PMID 21777436›Full record

ArticleArthritis research & therapy2011

Single-step autoantibody profiling in antiphospholipid syndrome using a multi-line dot assay.

Karl Egerer, Dirk Roggenbuck, Thomas Büttner, Barbara Lehmann, Annushka Kohn, Philipp von Landenberg, Rico Hiemann, Eugen Feist, Gerd-Rüdiger Burmester, Thomas Dörner

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.6field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 36 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 2 countries.

Karl EgererDepartment of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Augustenburger Platz 01, 13555 Berlin, Germany. karl.egerer@charite.de
Dirk Roggenbuck
Thomas Büttner
Barbara Lehmann
Annushka Kohn
Philipp von Landenberg
Rico Hiemann
Eugen Feist
Gerd-Rüdiger Burmester
Thomas Dörner
Charité - Universitätsmedizin Berlin · DEGeneric Assays (Germany) · DESolothurner Spitäler · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDiagnosis of antiphospholipid syndrome (APS) still remains a laboratory challenge due to the great diversity of antiphospholipid antibodies (aPL) and their significance regarding APS-diagnostic criteria.

methodsA multi-line dot assay (MLDA) employing phosphatidylserine (PS), phosphatidylinositol (PI), cardiolipin (CL), and beta2-glycoprotein I (β2 GPI) was used to detect aPL, immunoglobulin G (IgG) and immunoglobulin M (IgM) in 85 APS patients, 65 disease controls, and 79 blood donors. For comparison, anti-CL and anti-β2 GPI IgG and IgM were detected by enzyme-linked immunosorbent assay (ELISA).

resultsThe level of agreement of both methods was good for anti-CL IgG, moderate for anti-CL IgM, very good for anti-β2 GPI IgG, and moderate for anti-β2 GPI IgM (kappa = 0.641, 0.507, 0.803 and 0.506, respectively). The frequency of observed discrepancies for anti-CL IgG (1.75%), anti-CL IgM (3.93%), anti-β2 GPI IgG (1.75%), and anti-β2 GPI IgM (0.87%) was low (McNemar test, P < 0.05, not-significant, respectively). Sensitivity, specificity, positive (+LR) and negative (-LR) likelihood ratios for at least one positive aPL antibody assessed by ELISA were 58.8%, 95.8%, 14.1, and 0.4, respectively, and for at least three positive aPl IgM and/or one positive aPL IgG by MLDA were 67.1%, 96.5%, 19.3, and 0.3, respectively. The frequency of IgM to PI, PS and CL, and combination of three or more aPL IgM detected by MLDA was significantly higher in APS patients with cerebral transient ischemia (P < 0.05, respectively).

conclusionsThe novel MLDA is a readily available, single-step, sensitive diagnostic tool for the multiplex detection of aPL antibodies in APS and a potential alternative for single aPL antibody testing by ELISA.

Indexed as

AdolescentAdultAgedAntibodies, AntiphospholipidAntiphospholipid SyndromeEnzyme-Linked Immunosorbent AssayFemaleHumansImmunoblottingImmunoglobulin GImmunoglobulin MMaleMiddle AgedReproducibility of ResultsYoung AdultAntibodies, AntiphospholipidImmunoglobulin GImmunoglobulin M

Identifiers

PMID21777436
PMCPMC3239356
OpenAlexW2162774578

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.