Evidence map›Paper›PMID 34330285›Full record

ArticleBMC veterinary research2021

Assessing the antigenicity of different VP3 regions of infectious bursal disease virus in chickens from South Brazil.

Ana Paula Gori Palka, Tatiana Reichert Assunção de Matos, Claudemir de Souza, Danilo Santos Eugênio, Marco Aurélio Krieger, Stenio Perdigão Fragoso, Daniela Parada Pavoni

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2021. 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
0.5field-weighted citation impact, top 36% 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

4 citing papers in PubMed, 4 citations in OpenAlex.

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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

7 authors at 4 institutions in 1 country.

Ana Paula Gori Palka *Instituto Carlos Chagas/ICC, Fundação Oswaldo Cruz/Fiocruz, Curitiba, PR, Brazil.
Tatiana Reichert Assunção de Matos *Instituto Carlos Chagas/ICC, Fundação Oswaldo Cruz/Fiocruz, Curitiba, PR, Brazil.
Claudemir de SouzaInstituto Carlos Chagas/ICC, Fundação Oswaldo Cruz/Fiocruz, Curitiba, PR, Brazil.
Danilo Santos EugênioInstituto Carlos Chagas/ICC, Fundação Oswaldo Cruz/Fiocruz, Curitiba, PR, Brazil.
Marco Aurélio KriegerInstituto Carlos Chagas/ICC, Fundação Oswaldo Cruz/Fiocruz, Curitiba, PR, Brazil.
Stenio Perdigão FragosoInstituto Carlos Chagas/ICC, Fundação Oswaldo Cruz/Fiocruz, Curitiba, PR, Brazil.
Daniela Parada PavoniInstituto Carlos Chagas/ICC, Fundação Oswaldo Cruz/Fiocruz, Curitiba, PR, Brazil. daniela.pavoni@fiocruz.br.
Fundação Carlos Chagas · BRUniversidade Federal do Paraná · BRFundação Oswaldo Cruz · BRInstituto de Tecnologia do Paraná · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInfectious bursal disease (IBD), also known as Gumboro disease, is a viral infection that causes mortality and immunosuppression in chickens (Gallus gallus). VP2 and VP3 are the major structural viral capsid components and are the most immunogenic proteins of IBD virus (IBDV). Reliable diagnostic tests using VP2 and VP3 produced in heterologous systems are important tools to control this infection. One advantage of an IBD diagnostic based on VP3, over those that use VP2, is that VP3 has linear epitopes, enabling its production in bacteria.

resultsWe tested the suitability of recombinant VP3 (rVP3) as a diagnostic reagent in an enzyme-linked immunosorbent assay (ELISA). Compared with a commercial test, rVP3 ELISA showed high sensitivity and specificity as a diagnostic tool for vaccinated animals. In addition, rVP3, but not the commercial ELISA, was able to detect antibodies in nonvaccinated chickens, probably developed against circulating IBDV strains. It was possible the assessment of VP3 regions antigenicity using chicken antisera.

conclusionsThe full-length recombinant VP3 can be used to assess post vaccination immunological status of chickens and its production is feasible and inexpensive. The evaluation of VP3 regions as candidates for general use in the diagnosis of IBD in chickens should be conducted with caution. Our work was the first to identify several regions of VP3 recognized by chicken antibodies.

Indexed as

ChickensAnimalsAntigens, ViralBirnaviridae InfectionsBrazilGene Expression Regulation, ViralInfectious bursal disease virusPoultry DiseasesViral Structural ProteinsAntigens, ViralViral Structural ProteinsVP3 protein, infectious bursal disease virusAntigenic regionsELISAGumboro diseaseInfectious bursal diseaseVP3

Identifiers

PMID34330285
PMCPMC8325195
OpenAlexW3186080125

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.