Evidence map›Paper›PMID 30718910›Full record

ArticleScientific reports2019

Hydrogen gas distribution in organs after inhalation: Real-time monitoring of tissue hydrogen concentration in rat.

Ryo Yamamoto, Koichiro Homma, Sayuri Suzuki, Motoaki Sano, Junichi Sasaki

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
7.3field-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

32 citing papers in PubMed, 59 citations in OpenAlex.

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  10. Plasma brain-related biomarkers and potential therapeutic targets in pediatric ECMO.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Review
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  15. AccurateHeliyon · 2022
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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 1 institution in 1 country.

Ryo YamamotoDepartment of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo, Japan.
Koichiro HommaDepartment of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo, Japan. homma@keio.jp.
Sayuri SuzukiDepartment of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo, Japan.
Motoaki SanoDepartment of Cardiology, Keio University School of Medicine, Tokyo, Japan.
Junichi SasakiDepartment of Emergency and Critical Care Medicine, Keio University School of Medicine, Tokyo, Japan.
Keio University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hydrogen has therapeutic and preventive effects against various diseases. Although animal and clinical studies have reported promising results, hydrogen distribution in organs after administration remains unclear. Herein, the sequential changes in hydrogen concentration in tissues over time were monitored using a highly sensitive glass microsensor and continuous inhalation of 3% hydrogen gas. The hydrogen concentration was measured in the brain, liver, kidney, mesentery fat and thigh muscle of rats. The maximum concentration, time to saturation, and other measurements representing the dynamics of distribution were obtained from the concentration curves, and the results obtained for different organs were compared. The time to saturation was significantly longer (20.2 vs 6.3-9.4 min. P = 0.004 in all cases) and increased more gradually in muscle than in the other organs. The maximum concentration was the highest in liver and the lowest in the kidney (29.0 ± 2.6 vs 18.0 ± 2.2 μmol/L; P = 0.03 in all cases). The concentration varied significantly depending on the organ (P = 0.03). These results provide the fundamentals for elucidating the mechanisms underlying the in vivo favourable effects of hydrogen gas in mammalian systems.

Indexed as

Administration, InhalationAnimalsBrainHydrogenKidneyLiverMaleMuscle, SkeletalRatsRats, Sprague-DawleyTissue DistributionHydrogen

Identifiers

PMID30718910
PMCPMC6362202
OpenAlexW2914264003

What OpenQuestion holds

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LicenceCC BY
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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.