Evidence map›Paper›PMID 2467777›Full record

ArticleClinical and experimental immunology1989

Antigenic relationships between the surface-exposed, secreted and somatic materials of the nematode parasites Ascaris lumbricoides, Ascaris suum, and Toxocara canis.

M W Kennedy, F Qureshi, E M Fraser, M R Haswell-Elkins, D B Elkins, H V Smith

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 1989. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

18 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. Innate Immune Response to Helminth Infections.Advances in experimental medicine and biology · 2025
    Review
  3. Dot enzyme-linked immunosorbent assay (ELISA) for the detection ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2017
    Article
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  10. Effects of geohelminth infection and age on the associations between allergen-specific IgE, skin test reactivity and wheeze: a case-control study.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2013
    Article
  11. Article
  12. Review
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  15. Article
  16. Article
  17. Article
  18. Immunoregulatory Effects of Somatic Extract ofIranian journal of parasitology
    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

6 authors at 1 institution in 1 country.

M W KennedyWellcome Laboratories for Experimental Parasitology, University of Glasgow, Bearsden, Scotland, UK.
F Qureshi
E M Fraser
M R Haswell-Elkins
D B Elkins
H V Smith
Wellcome Centre for Molecular Parasitology · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

The cosmopolitan nematode parasites Ascaris lumbricoides, Ascaris suum, and Toxocara canis are closely related phylogenetically, and are all pathogenic to man. In the case of the latter, the antigens released by the tissue-invasive parasitic larvae in vitro ('excretory/secretory' or 'ES' antigens) are routinely used for serodiagnostic purposes. Here we have found, using radioimmunoprecipitation with defined rabbit antiserum, and SDS-PAGE, that there is a significant antigenic similarity between the secreted and somatic antigens of the three nematodes, and have characterized cross-reactive components. Among these is a 14 kD internal protein which has a homologue in all three parasites. This molecule is the subject of an IgG antibody response in Ascaris infection, but there is no measurable response to it in toxocariasis. Lastly, using quantitative immunofluorescence, the antigens exposed on the surface of intact, living, larvae were found to be cross-reactive or specific depending on the developmental stage of the parasites. This means that the surface of tissue-invasive Ascaris larvae bears stage-specific epitopes.

Indexed as

AnimalsAntigens, HelminthAntigens, SurfaceAscarisCross ReactionsElectrophoresis, Polyacrylamide GelEpitopesPrecipitin TestsToxocaraAntigens, HelminthAntigens, SurfaceEpitopes

Identifiers

PMID2467777
PMCPMC1541960
OpenAlexW2416837773

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.