Evidence map›Paper›PMID 1639471›Full record

ArticleInfection and immunity1992

Preparation, characterization, and immunogenicity of conjugate vaccines directed against Actinobacillus pleuropneumoniae virulence determinants.

W Byrd, S Kadis

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 22% 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

11 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. NPJ vaccines · 2019
    Article
  5. Article
  6. Article
  7. Review
  8. Genomic relatedness among Actinobacillus pleuropneumoniae field strains of sterotypes 1 and 5 isolated from healthy and diseased pigs.Canadian journal of veterinary research = Revue canadienne de recherche veterinaire · 1999
    Article
  9. Article
  10. Article
  11. 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

2 authors at 1 institution in 1 country.

W ByrdDepartment of Medical Microbiology, College of Veterinary Medicine, University of Georgia, Athens 30602.
S Kadis
University of Georgia · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Conjugate vaccines were prepared in an attempt to protect pigs against swine pleuropneumonia induced by Actinobacillus pleuropneumoniae (SPAP). Two subunit conjugates were prepared by coupling the A. pleuropneumoniae 4074 serotype 1 capsular polysaccharide (CP) to the hemolysin protein (HP) and the lipopolysaccharide (LPS) to the HP. Adipic acid dihydrazide was used as a spacer to facilitate the conjugation in a carbodiimide-mediated reaction. The CP and the LPS were found to be covalently coupled to the HP in the conjugates as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis and detergent gel chromatography analyses. Following a booster vaccination, pigs exhibited significantly high (P less than 0.05) immunoglobulin G antibodies against CP, LPS, and HP. The anti-CP and anti-LPS immunoglobulin G antibodies were found to function as opsonins in the phagocytosis of A. pleuropneumoniae by polymorphonuclear leukocytes, whereas antibodies to the HP neutralized the cytotoxic effect of the HP on polymorphonuclear leukocytes. No killing of A. pleuropneumoniae was observed when the effects of the antibodies were tested in the presence of complement. Thus, polysaccharide-protein A. pleuropneumoniae conjugates elicit significant antibody responses against each component of each conjugate, which could be instrumental in protecting swine against SPAP.

Indexed as

Actinobacillus pleuropneumoniaeAnimalsAntibodies, BacterialBacterial VaccinesHemolysin ProteinsLipopolysaccharidesNeutrophilsPhagocytosisPolysaccharides, BacterialSwineVaccines, SyntheticVirulenceAntibodies, BacterialBacterial VaccinesHemolysin ProteinsLipopolysaccharidesPolysaccharides, BacterialVaccines, Synthetic

Identifiers

PMID1639471
PMCPMC257279
OpenAlexW2154033714

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.