Evidence map›Paper›PMID 31249255›Full record

ArticleMedical gas research

Hydrogen gas therapy improves survival rate and neurological deficits in subarachnoid hemorrhage rats: a pilot study.

Richard Camara, Nathanael Matei, Justin Camara, Budbazar Enkhjargal, Jiping Tang, John H Zhang

Open access · greenAbstract read
In one paragraph

Article in Medical gas research. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
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  7. Article
  8. Review
  9. Article
  10. Hydrogen: A Novel Option in Human Disease Treatment.Oxidative medicine and cellular longevity · 2020
    Review
  11. Review
  12. 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

6 authors at 1 institution in 1 country.

Richard CamaraDepartment of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA.
Nathanael MateiDepartment of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA.
Justin CamaraDepartment of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA.
Budbazar EnkhjargalDepartment of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA.
Jiping TangDepartment of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA.
John H ZhangDepartment of Physiology and Pharmacology; Department of Anesthesiology; Department of Neurosurgery, Loma Linda University, Loma Linda, CA, USA.
Loma Linda University · US

Funding

Neurovascular Protection for Early Brain Injury after SAHR01NS081740 · NINDS · LOMA LINDA UNIVERSITY · PI ZHANG, JOHN H · 2013 to 2017
$1.6M
NINDS NIH HHS R01 NS081740
6 · The paper itself

Abstract

The high morbidity, high mortality, and significant shortage of effective therapies for subarachnoid hemorrhage (SAH) have created an urgency to discover novel therapies. Human studies in Asia have established the safety of hydrogen gas in the treatment of hepatic, renal, pulmonary, and cardiac diseases. Mechanistically, hydrogen gas has been shown to affect oxidative stress, inflammation, and apoptosis. We hypothesized that hydrogen therapy would improve neurological function and increase survival rate in SAH. High dose hydrogen gas (66% at 3 L/min) was administered for 2 hours at 0.5, 8, and 18 hours after SAH. This treatment increased 72-hour survival rate and provided 24-hour neuroprotection after SAH in rats. To our knowledge, this is the first report demonstrating that high dose hydrogen gas therapy reduces mortality and improves outcome after SAH. Our results correlate well with the proposed mechanisms of hydrogen gas therapy within the literature. We outline four pathways and downstream targets of hydrogen gas potentially responsible for our results. A potentially complex network of pathways responsible for the efficacy of hydrogen gas therapy, along with a limited mechanistic understanding of these pathways, justifies further investigation to provide a basis for clinical trials and the advancement of hydrogen gas therapy in humans. This study was approved by the Institutional Animal Care and Use Committee of Loma Linda University, USA (Approval No. 8160016) in May 2016.

Indexed as

AnimalsDisease Models, AnimalForelimbGasesHydrogenHydrotherapyKaplan-Meier EstimateMalePilot ProjectsRatsRats, Sprague-DawleySeverity of Illness IndexSubarachnoid HemorrhageGasesHydrogencerebral vasospasmearly brain injuryfree radicalshigh dose hydrogenhydrogen gas therapyhydrogen pathwaymortalityoxidative stressreactive oxygen speciessubarachnoid hemorrhagesurvival

Identifiers

PMID31249255
PMCPMC6607870
OpenAlexW2951670424

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.