Evidence map›Paper›PMID 30586410›Full record

ArticlePloS one2018

Quantification of hydrogen production by intestinal bacteria that are specifically dysregulated in Parkinson's disease.

Anzu Suzuki, Mikako Ito, Tomonori Hamaguchi, Hiroshi Mori, Yuka Takeda, Ryuko Baba, Takeshi Watanabe, Ken Kurokawa, Susumu Asakawa, Masaaki Hirayama and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
8.0field-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

34 citing papers in PubMed, 95 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Review
  5. Evaluation of hydraulic retention time on hydrogen production from corn industry wastewater by dark fermentation.Water science and technology : a journal of the International Association on Water Pollution Research · 2025
    Article
  6. Review
  7. Review
  8. Article
  9. Prospects of molecular hydrogen in cancer prevention and treatment.Journal of cancer research and clinical oncology · 2024
    Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. The butyrate-producing and spore-forming bacterial genusGut microbiome (Cambridge, England) · 2023
    Review
  17. Article
  18. Foods (Basel, Switzerland) · 2022
    Article
  19. Article
  20. Review
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

11 authors at 2 institutions in 1 country.

Anzu SuzukiDivision of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Mikako ItoDivision of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan.ORCID 0000-0002-1351-7602
Tomonori HamaguchiDivision of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Hiroshi MoriGenome Evolution Laboratory, Center for Information Biology, National Institute of Genetics, Mishima, Japan.
Yuka TakedaDepartment of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Ryuko BabaLaboratory of Soil Biology and Chemistry, Department of Biological Mechanisms and Functions, Nagoya University Graduate School of Bioagricultural Sciences, Nagoya, Japan.
Takeshi WatanabeLaboratory of Soil Biology and Chemistry, Department of Biological Mechanisms and Functions, Nagoya University Graduate School of Bioagricultural Sciences, Nagoya, Japan.
Ken KurokawaGenome Evolution Laboratory, Center for Information Biology, National Institute of Genetics, Mishima, Japan.
Susumu AsakawaLaboratory of Soil Biology and Chemistry, Department of Biological Mechanisms and Functions, Nagoya University Graduate School of Bioagricultural Sciences, Nagoya, Japan.
Masaaki HirayamaDepartment of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan.ORCID 0000-0003-0092-7837
Kinji OhnoDivision of Neurogenetics, Center for Neurological Diseases and Cancer, Nagoya University Graduate School of Medicine, Nagoya, Japan.ORCID 0000-0002-1529-2750
Nagoya University · JPNational Institute of Genetics · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oral administration of hydrogen water ameliorates Parkinson's disease (PD) in rats, mice, and humans. We previously reported that the number of putative hydrogen-producing bacteria in intestinal microbiota is low in PD compared to controls. We also reported that the amount of hydrogen produced by ingestion of lactulose is low in PD patients. The decreased hydrogen production by intestinal microbiota may be associated with the development and progression of PD. We measured the amount of hydrogen production using gas chromatography by seven bacterial strains, which represented seven major intestinal bacterial groups/genera/species. Blautia coccoides and Clostridium leptum produced the largest amount of hydrogen. Escherichia coli and Bacteroides fragilis constituted the second group that produced hydrogen 34- to 93-fold lower than B. coccoides. Bifidobacterium pseudocatenulatum and Atopobium parvulum constituted the third group that produced hydrogen 559- to 2164-fold lower than B. coccoides. Lactobacillus casei produced no detectable hydrogen. Assuming that taxonomically neighboring strains have similar hydrogen production, we simulated hydrogen production using intestinal microbiota that we previously reported, and found that PD patients produce a 2.2-fold lower amount of intestinal hydrogen compared to controls. The lower amount of intestinal hydrogen production in PD was also simulated in cohorts of two other countries. The number of hydrogen-producing intestinal bacteria may be associated with the development and progression of PD. Further studies are required to prove its beneficial effect.

Indexed as

Gastrointestinal MicrobiomeBacteriaCase-Control StudiesFecesHumansHydrogenParkinson DiseaseTime FactorsHydrogen

Identifiers

PMID30586410
PMCPMC6306167
OpenAlexW2905808540

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.