Evidence map›Paper›PMID 30018338›Full record

ArticleScientific reports2018

Parkinson's disease and bacteriophages as its overlooked contributors.

George Tetz, Stuart M Brown, Yuhan Hao, Victor Tetz

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 86 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed, 2 pooled it
5.5field-weighted citation impact, top 3% 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

86 citing papers in PubMed, 2 syntheses or guidelines pooled it, 122 citations in OpenAlex.

  1. Beyond bacteria: a multi-omics view of the gut-brain axis in Parkinson's disease.Frontiers in cellular and infection microbiology · 2026
    Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Risk Profile of Bacteriophages in the Food Chain.Foods (Basel, Switzerland) · 2025
    Review
  14. Article
  15. Article
  16. Review
  17. Lewy body diseases and the gut.Molecular neurodegeneration · 2025
    Review
  18. Review
  19. Review
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

George TetzHuman Microbiology Institute, New York, NY, 10027, USA. georgetets@gmail.com.ORCID http://orcid.org/0000-0003-3205-9018
Stuart M BrownTetz Laboratories, New York, NY, 10027, USA.ORCID http://orcid.org/0000-0002-0906-9907
Yuhan HaoTetz Laboratories, New York, NY, 10027, USA.
Victor TetzHuman Microbiology Institute, New York, NY, 10027, USA.
Human BioMolecular Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent studies suggest that alterations in the gut phagobiota may contribute to pathophysiological processes in mammals; however, the association of bacteriophage community structure with Parkinson's disease (PD) has not been yet characterized. Towards this end, we used a published dataset to analyse bacteriophage composition and determine the phage/bacteria ratio in faecal samples from drug-naive PD patients and healthy participants. Our analyses revealed significant alterations in the representation of certain bacteriophages in the phagobiota of PD patients. We identified shifts of the phage/bacteria ratio in lactic acid bacteria known to produce dopamine and regulate intestinal permeability, which are major factors implicated in PD pathogenesis. Furthermore, we observed the depletion of Lactococcus spp. in the PD group, which was most likely due to the increase of lytic c2-like and 936-like lactococcal phages frequently present in dairy products. Our findings add bacteriophages to the list of possible factors associated with the development of PD, suggesting that gut phagobiota composition may serve as a diagnostic tool as well as a target for therapeutic intervention, which should be confirmed in further studies. Our results open a discussion on the role of environmental phages and phagobiota composition in health and disease.

Indexed as

BacteriaBacteriophagesCase-Control StudiesDNA, BacterialDNA, ViralDopamineFecesHumansMicrobiotaParkinson DiseasePrincipal Component AnalysisDNA, BacterialDNA, ViralDopamine

Identifiers

PMID30018338
PMCPMC6050259
OpenAlexW2951636371

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.