Evidence map›Paper›PMID 28222192›Full record

ArticlePloS one2017

Blastocystis subtyping and its association with intestinal parasites in children from different geographical regions of Colombia.

Juan David Ramírez, Carolina Flórez, Mario Olivera, María Consuelo Bernal, Julio Cesar Giraldo

Open access · goldAbstract readComparative Study
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
7.9field-weighted citation impact, top 2% 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

38 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
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  5. Molecular Prevalence ofMicroorganisms · 2024
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  6. Molecular Prevalence and Subtypes Distribution ofTropical medicine and infectious disease · 2024
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  9. Circulation and colonisation ofEpidemiology and infection · 2023
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  10. Prevalence and Molecular Characterisation ofPathogens (Basel, Switzerland) · 2023
    Article
  11. Article
  12. Article
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  14. Article
  15. Identification of MultipleFrontiers in veterinary science · 2021
    Article
  16. Relative Frequency ofTropical medicine and infectious disease · 2020
    Article
  17. Socio-Demographic Determinants Associated with Blastocystis Infection in Arequipa, Peru.The American journal of tropical medicine and hygiene · 2020
    Article
  18. Article
  19. 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

5 authors at 3 institutions in 1 country.

Juan David RamírezGrupo de Investigaciones Microbiológicas - UR (GIMUR), Programa de Biología, Facultad de Ciencias Naturales y Matemáticas, Universidad del Rosario, Bogotá - Colombia.ORCID http://orcid.org/0000-0002-1344-9312
Carolina FlórezGrupo de Parasitología, Instituto Nacional de Salud, Bogotá - Colombia.
Mario OliveraGrupo de Parasitología, Instituto Nacional de Salud, Bogotá - Colombia.
María Consuelo BernalPrograma profesional de Biología, Grupo de Investigación en Parasitología y Microbiología tropical - GIPAMT, Universidad Incca de Colombia, Bogotá - Colombia.
Julio Cesar GiraldoPrograma profesional de Biología, Grupo de Investigación en Parasitología y Microbiología tropical - GIPAMT, Universidad Incca de Colombia, Bogotá - Colombia.
Instituto Nacional de Salud · COUniversidad Incca de Colombia · COUniversidad del Rosario · CO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Blastocystis is a common enteric protist colonizing probably more than 1 billion people with a large variety of non-human hosts. Remarkable genetic diversity has been observed, leading to the subdivision of the genus into multiple subtypes (ST), some of which are exclusively found in non-human hosts. The aim of this study was to determine the distribution of Blastocystis STs/18S alleles in symptomatic (abdominal pain, anal pruritus, diarrhea, headache, nauseas and/or vomit) and asymptomatic children from nine geographical regions of Colombia. A total of 2026 fecal samples were collected as part of a national survey to estimate the frequency of intestinal parasites in children. A set of 256 samples that were Blastocystis positive was finally selected. The samples were submitted to DNA extraction, Real Time PCR and sequencing using Blastocystis-specific primers targeting the small subunit rRNA gene for ST identification. DNA of Ascaris lumbricoides (16.4%), Trichuris trichiura (8.2%), hookworms (Necator americanus/Ancylostoma duodenale) (7.3%), Giardia duodenalis (23.1%), Entamoeba complex (82%), Entamoeba coli (55%), Hymenolepis nana (0.8%), Endolimax nana (33.2%) and Neobalantidium coli (2.7%) was detected in the Blastocystis-positive samples. We detected ST1 (21.4%), ST2 (19.5%), ST3 (55.5%), ST4 (0.8%), ST6 (2%) and ST7 (0.8%); alleles 1, 2, 4, 81, 82 and 83 for ST1; alleles 9, 11, 12, 15, 67, 71 and 73 for ST2; alleles 34, 36, 38, 45, 49, 55, 134 and 128 for ST3; allele 42 for ST4; allele 122 for ST6, and allele 142 for ST7. Further studies implementing high-resolution molecular markers are necessary to understand the dynamics of Blastocystis transmission and the role of this Stramenopila in health and disease.

Indexed as

DNA Barcoding, TaxonomicAdolescentAllelesAsymptomatic DiseasesBlastocystisBlastocystis InfectionsChildChild, PreschoolCoinfectionColombiaDNA, ProtozoanDNA, RibosomalFecesFemaleGenetic VariationGeography, MedicalDNA, ProtozoanDNA, RibosomalRNA, ProtozoanRNA, Ribosomal, 18S

Identifiers

PMID28222192
PMCPMC5319748
OpenAlexW2591036460

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.