Evidence map›Paper›PMID 10562820›Full record

ArticleJournal of clinical pathology1999

Pitfalls of formalin fixation for determination of antineutrophil cytoplasmic antibodies.

S M Chowdhury, V Broomhead, G P Spickett, R Wilkinson

Abstract readComparative Study
In one paragraph

Article in Journal of clinical pathology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
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

4 authors.

S M ChowdhuryRegional Department of Immunology, Royal Victoria Infirmary, Newcastle upon Tyne, UK.
V Broomhead
G P Spickett
R Wilkinson

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sera can produce nuclear or perinuclear immunofluorescence staining in neutrophils which may be caused by antibodies with differing antigenic specificities. These include perinuclear antineutrophil cytoplasmic antibodies (P-ANCA), granulocyte specific antinuclear antibody (GS-ANA), and antinuclear antibody (ANA). There is controversy over the value of formalin fixation of neutrophils in differentiating antibodies giving selective or preferential reaction with the nuclear or perinuclear area of neutrophils. In a comparative study of 77 sera, formalin fixation caused inconsistency, nonspecific effects, and false positivity owing to enhanced fluorescence. If formalin fixed neutrophils are used in the routine diagnostic laboratory, this will add confusion to the interpretation of the ANCA assay.

Indexed as

Antibodies, Antineutrophil CytoplasmicAntibodies, AntinuclearCytoplasmFalse Positive ReactionsFluorescent Antibody Technique, IndirectFormaldehydeHumansNeutrophilsSensitivity and SpecificityTissue FixationAntibodies, Antineutrophil CytoplasmicAntibodies, AntinuclearFormaldehyde

Identifiers

PMID10562820
PMCPMC501439

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.