Evidence map›Paper›PMID 22897929›Full record

Trial reportParasites & vectors2012

Characterization and evaluation of a Sarcoptes scabiei allergen as a candidate vaccine.

Runhui Zhang, Quwu Jise, Wanpeng Zheng, Yongjun Ren, Xiang Nong, Xuhang Wu, Xiaobin Gu, Shuxian Wang, Xuerong Peng, Songjia Lai and 1 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in Parasites & vectors, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

17 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Scabies.Nature reviews. Disease primers · 2024
    Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Serodiagnostic Potential of Alpha-Enolase FromFrontiers in microbiology · 2018
    Article
  10. Characterization ofThe American journal of tropical medicine and hygiene · 2017
    Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Exploration 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

11 authors at 2 institutions in 1 country.

Runhui ZhangDepartment of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an 625014, China.
Quwu Jise
Wanpeng Zheng
Yongjun Ren
Xiang Nong
Xuhang Wu
Xiaobin Gu
Shuxian Wang
Xuerong Peng
Songjia Lai
Guangyou Yang
Sichuan Agricultural University · CNSichuan Animal Science Academy · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSarcoptic mange caused by the mite Sarcoptes scabiei is a worldwide disease affecting both humans and animals. Here we report the molecular characterization and evaluation of a recombinant S. scabiei tropomyosin (SsTm) protein in a vaccination trial in rabbits.

methodsThe full-length cDNA was cloned in a bacterial pET vector, and the recombinant protein was expressed in BL21 (DE3) cells and purified. Using specific rabbit antiserum, tropomyosin was localized immunohistochemically in mite tissue sections. Vaccination trials with the recombiant SsTm was carried out in New Zealand rabbits.

resultsThe full-length open reading frame (ORF) of the 852 bp cloned gene from S. scabiei encodes a 32.9 kDa protein. The amino acid sequence showed 98.94%, 97.89% and 98.59% homology to Dermatophagoides farina and Dermatophagoides pteronyssinus group 10 allergens and Psoroptes ovis tropomyosin, respectively. Tropomyosin was localized immunohistochemically in mite tissue sections mainly in the mouthparts, legs and integument of the epidermis. The predicted cross-reactivity of SsTm indicated that it is an allergenic protein. While vaccination with the recombiant SsTm resulted in high levels of specific IgG (P < 0.01), a low IgE antibody response and no significant protection against S. scabiei challenge were observed. After challenge, specific IgG levels remained significantly higher than the control (P < 0.01), while changes of total IgE levels were not significant (P > 0.05). However, the lesion areas in the vaccination group decreased at the end of the experiment compared with controls.

conclusionsAlthough vaccination with recombinant SsTm did not efficiently control sarcoptic mange in rabbits, the immunogenic properties of tropomyosin suggest it may be developed as a vaccine with alternative adjuvants or delivery methods.

Indexed as

AllergensAmino Acid SequenceAnimalsGene Expression RegulationLarvaMolecular Sequence DataNymphPhylogenyRabbitsSarcoptes scabieiScabiesTropomyosinVaccinesAllergensTropomyosinVaccines

Identifiers

PMID22897929
PMCPMC3436858
OpenAlexW2120653311

What OpenQuestion holds

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LicenceCC BY
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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.