Evidence map›Paper›PMID 29084570›Full record

ArticleParasites & vectors2017

Molecular typing of Trichomonas vaginalis isolates by actin gene sequence analysis and carriage of T. vaginalis viruses.

Simon C Masha, Piet Cools, Tania Crucitti, Eduard J Sanders, Mario Vaneechoutte

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2017. 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
1.6field-weighted citation impact, top 18% 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, 30 citations in OpenAlex.

  1. Molecular Diagnosis ofJournal of tropical medicine · 2026
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  5. Microscopic and molecular detection ofFrontiers in microbiology · 2024
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  6. Prevalence and Genotype ofJournal of tropical medicine · 2023
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  7. Journal of parasitology research · 2023
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  8. Characterisation ofInternational journal of molecular sciences · 2022
    Article
  9. Molecular typing of the actin gene ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2022
    Article
  10. Omics Analyses ofGenes · 2022
    Article
  11. Article
  12. Identification ofReports of biochemistry & molecular biology · 2021
    Article
  13. A review onSouthern African journal of infectious diseases · 2021
    Review
  14. Genotypic Variation inInfectious diseases in obstetrics and gynecology · 2020
    Article
  15. Article
  16. Trichomonas vaginalis Virus Among Women With Trichomoniasis and Associations With Demographics, Clinical Outcomes, and Metronidazole Resistance.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2019
    Article
  17. Article
  18. 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

5 authors at 3 institutions in 2 countries.

Simon C MashaCentre for Geographic Medicine Research - Coast, Kenya Medical Research Institute (KEMRI), P.O. Box 230-80108, Kilifi, Kenya. schengo@kemri-wellcome.org.
Piet CoolsLaboratory Bacteriology Research, Faculty of Medicine and Health Sciences, Ghent University, De Pintelaan, 185 9000, Ghent, Belgium.
Tania CrucittiHIV/STI Reference Laboratory, Department of Clinical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000, Antwerpen, Belgium.
Eduard J SandersCentre for Geographic Medicine Research - Coast, Kenya Medical Research Institute (KEMRI), P.O. Box 230-80108, Kilifi, Kenya.
Mario VaneechoutteLaboratory Bacteriology Research, Faculty of Medicine and Health Sciences, Ghent University, De Pintelaan, 185 9000, Ghent, Belgium.
Ghent University · BEKenya Medical Research Institute · KEInstituut voor Tropische Geneeskunde · BE

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundThe protozoan parasite Trichomonas vaginalis is the most common non-viral, sexually transmitted pathogen. Although T. vaginalis is highly prevalent among women in Kenya, there is lack of data regarding genetic diversity of isolates currently in circulation in Kenya.

methodsTyping was performed on 22 clinical isolates of T. vaginalis collected from women attending the antenatal care clinic at Kilifi County Hospital, Kenya, in 2015. Genotyping followed a previously proposed restriction fragment length polymorphism (RFLP) scheme, which involved in silico cleavage of the amplified actin gene by HindII, MseI and RsaI restriction enzymes. Phylogenetic analysis of all the sequences was performed to confirm the results obtained by RFLP-analysis and to assess the diversity within the RFLP genotypes. Additionally, we determined carriage of the four different types of Trichomonas vaginalis viruses (TVVs) by polymerase chain reaction.

resultsIn silico RFLP-analysis revealed five actin genotypes; 50.0% of the isolates were of actin genotype E, 27.3% of actin genotype N, 13.6% of actin genotype G and 4.5% of actin genotypes I and P. Phylogenetic analysis was in agreement with the RFLP-analysis, with the different actin genotypes clustering together. Prevalence of TVVs was 43.5% (95% confidence interval, CI: 23.2-65.5). TVV1 was the most prevalent, present in 39.1% of the strains and 90% of the T. vaginalis isolates which harbored TVVs had more than one type of TVV. None of the isolates of actin genotype E harbored any TVV.

conclusionThe presence of five actin genotypes in our study suggests notable diversity among T. vaginalis isolates occurring among pregnant women in Kilifi, Kenya. Isolates of the most prevalent actin genotype E lacked TVVs. We found no association between T. vaginalis genotype, carriage of TVVs and symptoms. Further studies with higher number of strains should be conducted in order to corroborate these results.

Indexed as

Genetic VariationActinsAdolescentAdultComputer SimulationCross-Sectional StudiesFemaleGenotypeHumansKenyaMiddle AgedMolecular TypingPhylogenyPolymerase Chain ReactionPolymorphism, Restriction Fragment LengthPregnancyActinsactin geneKenyaKilifiTrichomonas vaginalisTrichomonas vaginalis virusesTyping

Identifiers

PMID29084570
PMCPMC5663105
OpenAlexW2765653553

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.