Evidence map›Paper›PMID 28837129›Full record

ArticleThe ISME journal2017

Large-scale comparative metagenomics of Blastocystis, a common member of the human gut microbiome.

Francesco Beghini, Edoardo Pasolli, Tin Duy Truong, Lorenza Putignani, Simone M Cacciò, Nicola Segata

Open access · hybridAbstract readComparative Study
In one paragraph

Article in The ISME journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 128 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
128citing papers in PubMed, 3 pooled it
9.7field-weighted citation impact, top 1% 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

128 citing papers in PubMed, 3 syntheses or guidelines pooled it, 201 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Blastocystis, an Enigmatic Parasite.Acta parasitologica · 2026
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Commensal, pathogen, or passenger? Rethinking the role ofOne health (Amsterdam, Netherlands) · 2025
    Review
  16. Review
  17. Evolution and ecology of commensal gut protists: recent advances.Current opinion in genetics & development · 2025
    Review
  18. Review
  19. Review
  20. Assessing Zoonotic Risks ofPathogens (Basel, Switzerland) · 2025
    Article

68 more citing papers are in PubMed but not listed here.

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

6 authors at 3 institutions in 1 country.

Francesco BeghiniCentre for Integrative Biology, University of Trento, Trento, Italy.
Edoardo PasolliCentre for Integrative Biology, University of Trento, Trento, Italy.
Tin Duy TruongCentre for Integrative Biology, University of Trento, Trento, Italy.
Lorenza PutignaniUnits of Parasitology and Human Microbiome, Bambino Gesù Children's Hospital and Research Institute, Rome, Italy.
Simone M CacciòDepartment of Infectious Diseases, Istituto Superiore di Sanità, Rome, Italy.
Nicola SegataCentre for Integrative Biology, University of Trento, Trento, Italy.
University of Trento · ITBambino Gesù Children's Hospital · ITIstituto Superiore di Sanità · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The influence of unicellular eukaryotic microorganisms on human gut health and disease is still largely unexplored. Blastocystis spp. commonly colonize the gut, but its clinical significance and ecological role are currently unsettled. We have developed a high-sensitivity bioinformatic pipeline to detect Blastocystis subtypes (STs) from shotgun metagenomics, and applied it to 12 large data sets, comprising 1689 subjects of different geographic origin, disease status and lifestyle. We confirmed and extended previous observations on the high prevalence the microrganism in the population (14.9%), its non-random and ST-specific distribution, and its ability to cause persistent (asymptomatic) colonization. These findings, along with the higher prevalence observed in non-westernized individuals, the lack of positive association with any of the disease considered, and decreased presence in individuals with dysbiosis associated with colorectal cancer and Crohn's disease, strongly suggest that Blastocystis is a component of the healthy gut microbiome. Further, we found an inverse association between body mass index and Blastocystis, and strong co-occurrence with archaeal organisms (Methanobrevibacter smithii) and several bacterial species. The association of specific microbial community structures with Blastocystis was confirmed by the high predictability (up to 0.91 area under the curve) of the microorganism colonization based on the species-level composition of the microbiome. Finally, we reconstructed and functionally profiled 43 new draft Blastocystis genomes and discovered a higher intra subtype variability of ST1 and ST2 compared with ST3 and ST4. Altogether, we provide an in-depth epidemiologic, ecological, and genomic analysis of Blastocystis, and show how metagenomics can be crucial to advance population genomics of human parasites.

Indexed as

AdolescentAdultAgedBlastocystisCrohn DiseaseDysbiosisFecesFemaleGastrointestinal TractHumansMaleMetagenomicsMiddle AgedPrevalenceYoung Adult

Identifiers

PMID28837129
PMCPMC5702742
OpenAlexW2747743284

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.