Evidence map›Paper›PMID 23981841›Full record

ArticleClinica chimica acta; international journal of clinical chemistry2013

Analytical characterization and clinical evaluation of an enzyme-linked immunosorbent assay for measurement of afamin in human plasma.

Benjamin Dieplinger, Margot Egger, Christian Gabriel, Werner Poelz, Elisabeth Morandell, Beata Seeber, Florian Kronenberg, Meinhard Haltmayer, Thomas Mueller, Hans Dieplinger

Open access · hybridAbstract read
In one paragraph

Article in Clinica chimica acta; international journal of clinical chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
6.1field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 51 citations in OpenAlex.

  1. Trial
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  5. Comparative Analysis of Afamin, Asprosin, and Pentraxin 3 Levels in Women with PCOS and Women with Unexplained Infertility.Medical science monitor : international medical journal of experimental and clinical research · 2025
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  10. Observational
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  13. Afamin: an early predictor of preeclampsia.Archives of gynecology and obstetrics · 2018
    Article
  14. Is Afamin a novel biomarker for gestational diabetes mellitus? A pilot study.Reproductive biology and endocrinology : RB&E · 2018
    Article
  15. The N14 anti-afamin antibody Fab: a rare VActa crystallographica. Section D, Structural biology · 2016
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  20. The vitamin E-binding protein afamin increases in maternal serum during pregnancy.Clinica chimica acta; international journal of clinical chemistry · 2014
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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 1 country.

Benjamin DieplingerDepartment of Laboratory Medicine, Konventhospital Barmherzige Brueder Linz, Linz, Austria. Electronic address: benjamin.dieplinger@bs-lab.at.
Margot Egger
Christian Gabriel
Werner Poelz
Elisabeth Morandell
Beata Seeber
Florian Kronenberg
Meinhard Haltmayer
Thomas Mueller
Hans Dieplinger
Convent Hospital of the Brothers of Saint John of God · ATInnsbruck Medical University · ATAustrian Red Cross · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundComparative proteomics has recently identified afamin, the newest member of the albumin gene family, as a potential biomarker for ovarian cancer. The aim of this study was the analytical and clinical evaluation of a sandwich enzyme-linked immunosorbent assay for the determination of afamin in human plasma.

methodsWe evaluated precision, linearity, and detection limit of the assay, analyte stability and biological variability, determined reference values and quantified afamin concentrations in various diseases.

resultsWithin-run and total coefficients of variation were <10%. The method was linear across the tested measurement range. Detection limit was 7 mg/L for the assay. The analyte was stable for 24 h at room temperature, for 48 h at 4°C, and for at least one year at -20°C and -80°C. The reference change value for healthy individuals was 24%. Age- and sex-independent reference values in healthy blood donors were 45-99 mg/L (median 68 mg/L). In the clinical assay evaluation afamin plasma concentrations were modestly decreased in patients with heart failure. Patients with pneumonia or sepsis exhibited markedly decreased afamin plasma concentrations. However, patients with chronic renal disease or chronic obstructive pulmonary disease showed no difference in afamin plasma concentrations as compared to healthy individuals. Correlation analyses revealed an inverse association between afamin and inflammatory biomarkers.

conclusionsThe afamin assay meets quality specifications for laboratory medicine. The results of the clinical assay evaluation revealed novel insights with respect to afamin as a potential negative acute phase protein and should encourage further studies.

Indexed as

Acute-Phase ProteinsAdultAgedAged, 80 and overBiomarkersCarrier ProteinsEnzyme-Linked Immunosorbent AssayFemaleGlycoproteinsHeart FailureHumansMaleMiddle AgedPneumonia, BacterialPulmonary Disease, Chronic ObstructiveReference ValuesAcute-Phase ProteinsAFM protein, humanBiomarkersCarrier ProteinsGlycoproteinsSerum AlbuminSerum Albumin, HumanBNPB-type natriuretic peptidechronic obstructive pulmonary diseaseClinical and Laboratory Standards InstituteCLSIcoefficient of variationCOPDC-reactive proteinCRPCVDiagnosiseGFRELISAenzyme-linked immunosorbent assayestimated glomerular filtration rateheart failureHFIL-6interleukin-6Interleukin-6PBSPCTphosphate-buffered-salineprocalcitoninPrognosisRCVreference change valueroom temperatureRTTumor markerVitamin E

Identifiers

PMID23981841
PMCPMC3819992
OpenAlexW1971092625

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.