Evidence map›Paper›PMID 23114703›Full record

ArticleClinical and vaccine immunology : CVI2013

Large-scale evaluation of the immuno-mycologics lateral flow and enzyme-linked immunoassays for detection of cryptococcal antigen in serum and cerebrospinal fluid.

Jessica Hansen, E Susan Slechta, Marcellene A Gates-Hollingsworth, Brandon Neary, Adam P Barker, Sean Bauman, Thomas R Kozel, Kimberly E Hanson

Open access · diamondAbstract readComparative StudyEvaluation Study
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 3 pooled it
8.4field-weighted citation impact, top 2% 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

65 citing papers in PubMed, 3 syntheses or guidelines pooled it, 133 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Point-of-care diagnosis and prognostication of cryptococcal meningitis with the cryptococcal antigen lateral flow assay on cerebrospinal fluid.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2014
    Trial
  5. Article
  6. Article
  7. Observational
  8. Cryptococcal meningitis.Nature reviews. Disease primers · 2023
    Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Neglecting Genetic Diversity Hinders Timely Diagnosis ofJournal of clinical microbiology · 2021
    Article
  20. Article

5 more citing papers are in PubMed but not listed here.

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

8 authors at 4 institutions in 1 country.

Jessica HansenARUP Laboratories, Salt Lake City, UT, USA.
E Susan Slechta
Marcellene A Gates-Hollingsworth
Brandon Neary
Adam P Barker
Sean Bauman
Thomas R Kozel
Kimberly E Hanson
ARUP Laboratories (United States) · USImmuno-Mycologics · USUniversity of Nevada, Reno · USUniversity of Utah · US

Funding

Immunoassay for capsular antigen for rapid diagnosis of anthraxR01AI093365 · NIAID · UNIVERSITY OF NEVADA RENO · PI KOZEL, THOMAS R · 2011 to 2015
$3.4M
Cryptococcal polysaccharide-phagocytosis inhibitionR01AI014209 · NIAID · UNIVERSITY OF NEVADA RENO · PI KOZEL, THOMAS R · 1985 to 2009
$1.9M
NIAID NIH HHS R01 AI014209NIAID NIH HHS R01 AI093365
6 · The paper itself

Abstract

Cryptococcosis is a systemic infection caused by the pathogenic yeasts Cryptococcus neoformans and C. gattii. Detection of cryptococcal capsular antigen (CrAg) in serum and cerebrospinal fluid (CSF) plays an important diagnostic role. We prospectively compared the new Immuno-Mycologics Inc. (IMMY) lateral flow assay (LFA) and enzyme immunoassay (EIA) to our current CrAg test (Premier EIA; Meridian Bioscience Inc.). Discordant samples were retested with the latex-Cryptococcus antigen test (IMMY) and using serotype-specific monoclonal antibodies (MAbs). A total of 589 serum and 411 CSF specimens were tested in parallel. Qualitative agreement across assays was 97.7%. In all, 56 (41 serum and 15 CSF) samples were positive and 921 (527 serum and 394 CSF) samples were negative by all three assays. The 23 discrepant specimens were all Meridian EIA negative. Of 23 discordant specimens, 20 (87.0%) were positive by both the IMMY LFA and EIA, 2 were LFA positive only, and 1 was EIA positive only. Eleven discrepant specimens had adequate volume for latex agglutination (LA) testing; 8 were LA positive, and 3 were LA negative. LA-negative samples (2 CSF samples and 1 serum) had low IMMY LFA/EIA titers (≤1:10). Serotype-specific MAb analysis of the LA-positive samples suggested that these specimens contained CrAg epitopes similar to those of serotype C strains. In conclusion, the IMMY assays showed excellent overall concordance with the Meridian EIA. Assay performance differences were related to issues of analytic sensitivity and possible serotype bias. Incomplete access to patient-level data combined with low specimen volumes limited our ability to fully resolve discrepant results.

Indexed as

Antigens, FungalCerebrospinal FluidClinical Laboratory TechniquesCryptococcosisCryptococcus gattiiCryptococcus neoformansHumansImmunoassayProspective StudiesSensitivity and SpecificitySerumAntigens, Fungal

Identifiers

PMID23114703
PMCPMC3535775
OpenAlexW2150376850

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.