Evidence map›Paper›PMID 27580944›Full record

ArticleParasites & vectors2016

Isolation, cultivation and molecular characterization of a new Trypanosoma equiperdum strain in Mongolia.

Keisuke Suganuma, Sandagdorj Narantsatsral, Banzragch Battur, Shino Yamasaki, Davaajav Otgonsuren, Simon Peter Musinguzi, Batdorj Davaasuren, Badgar Battsetseg, Noboru Inoue

Open access · goldAbstract readCase Reports
In one paragraph

Article in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Molecular identification of new Trypanosoma evansi type non-A/B isolates from buffaloes and cattle in Indonesia.Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology : Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. MonomorphicMicrobial genomics · 2021
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Draft Genome Sequence ofMicrobiology resource announcements · 2019
    Article
  20. 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

9 authors at 2 institutions in 2 countries.

Keisuke SuganumaNational Research Center for Protozoan Diseases, OIE Reference Laboratory for Surra, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido, 080-8555, Japan.
Sandagdorj NarantsatsralInstitute of Veterinary Medicine, Laboratory of Molecular Genetics, Mongolian University of Life Sciences, Zaisan, 17024, Ulaanbaatar, Mongolia.
Banzragch BatturInstitute of Veterinary Medicine, Laboratory of Molecular Genetics, Mongolian University of Life Sciences, Zaisan, 17024, Ulaanbaatar, Mongolia.
Shino YamasakiNational Research Center for Protozoan Diseases, OIE Reference Laboratory for Surra, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido, 080-8555, Japan.
Davaajav OtgonsurenInstitute of Veterinary Medicine, Laboratory of Molecular Genetics, Mongolian University of Life Sciences, Zaisan, 17024, Ulaanbaatar, Mongolia.
Simon Peter MusinguziNational Research Center for Protozoan Diseases, OIE Reference Laboratory for Surra, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido, 080-8555, Japan.
Batdorj DavaasurenNational Research Center for Protozoan Diseases, OIE Reference Laboratory for Surra, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido, 080-8555, Japan.
Badgar BattsetsegInstitute of Veterinary Medicine, Laboratory of Molecular Genetics, Mongolian University of Life Sciences, Zaisan, 17024, Ulaanbaatar, Mongolia.
Noboru InoueNational Research Center for Protozoan Diseases, OIE Reference Laboratory for Surra, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido, 080-8555, Japan. ircpmi@obihiro.ac.jp.
Obihiro University of Agriculture and Veterinary Medicine · JPMongolian University of Life Sciences · MN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTrypanosoma equiperdum causes dourine via sexual transmission in Equidae. T. equiperdum is classified under the subgenus Trypanozoon along with the T. brucei sspp. and T. evansi; however, the species classification of Trypanozoon remains a controversial topic due to the limited number of T. equiperdum reference strains. In addition, it is possible that some were misclassified T. evansi strains. Thus, there is a strong need for a new T. equiperdum strain directly isolated from the genital mucosa of a horse with a clinically- and parasitologically-confirmed dourine infection.

methodsTrypanosomes isolated from the urethral tract of a stallion with suspected dourine, were directly cultivated using soft agarose media at 37 °C in 5 % CO2. For molecular characterization, 18S ribosomal RNA (rRNA) gene, the internal transcribed spacer (ITS) and 8 maxicircle DNA regions were amplified by a PCR and their sequences were determined. To analyze the ratio of the kinetoplastic/akinetoplastic population, the kinetoplasts and the nuclei of trypanosomes were subjected to Hoechst staining and observed by fluorescence microscopy.

resultsIn addition to the clinical symptoms and the molecular diagnosis, this stallion was definitively diagnosed with dourine by the detection of trypanosomes in the urethral mucosa. These results strongly suggested that the isolated trypanosome was true T. equiperdum. T. equiperdum isolated from the urethral tract was adapted in vitro using soft agarose media. Based on the results of a phylogenetic analysis of 18S rRNA and ITS, this T. equiperdum isolate was classified into the Trypanozoon clade. In a PCR of the maxicircle DNA region, only NADH-dehydrogenase subunits 4 and 5 was amplified. Clear kinetoplasts were observed in most of the T. equiperdum isolates. In contrast, most culture-adapted T. equiperdum were of the akinetoplastic form.

conclusionWe concluded that our isolated trypanosome was the first confirmed case of T. equiperdum in Mongolia and named it "T. equiperdum IVM-t1". T. equiperdum IVM-t1 was well adapted and propagated in soft agarose media, which indicates that this culture method is useful for isolation of T. equiperdum from horses with dourine.

Indexed as

AnimalsDourineHorse DiseasesHorsesMaleMongoliaSexually Transmitted DiseasesTrypanosomaDourineIn vitro cultureMaxicircle DNAMongoliaSoft agarose mediaTrypanosoma equiperdum

Identifiers

PMID27580944
PMCPMC5007690
OpenAlexW2514630883

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.