Evidence map›Paper›PMID 32350615›Full record

ArticleJournal of bone and mineral metabolism2020

Effects of mild hyperbaric oxygen on osteoporosis induced by hindlimb unloading in rats.

Ai Takemura, Paola Divieti Pajevic, Tatsuro Egawa, Rika Teshigawara, Tatsuya Hayashi, Akihiko Ishihara

Abstract read
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In one paragraph

Article in Journal of bone and mineral metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

7 citing papers in PubMed, 13 citations in OpenAlex.

  1. Hyperbaric Oxygen Therapy for the Treatment of Bone-Related Diseases.International journal of molecular sciences · 2025
    Review
  2. Article
  3. Hypoxia Pathway in Osteoporosis: Laboratory Data for Clinical Prospects.International journal of environmental research and public health · 2023
    Review
  4. Review
  5. Article
  6. Article
  7. Article
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 2 institutions in 2 countries.

Ai TakemuraLaboratory of Cell Biology and Life Science, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan. takemura.ai.46c@kyoto-u.jp.ORCID http://orcid.org/0000-0001-8836-8616
Paola Divieti PajevicDepartment of Translational Dental Medicine, Boston University Goldman School of Dental Medicine, Boston, MA, 02118, USA.
Tatsuro EgawaLaboratory of Sports and Exercise Medicine, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan.
Rika TeshigawaraLaboratory of Developmental Epigenome, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan.
Tatsuya HayashiLaboratory of Sports and Exercise Medicine, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan.
Akihiko IshiharaLaboratory of Cell Biology and Life Science, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan.
Kyoto University · JPBoston University · US

Funding

Japan Society for the Promotion of Science 17J02040
6 · The paper itself

Abstract

introductionDisuse-induced bone loss is caused by a suppression of osteoblastic bone formation and an increase in osteoclastic bone resorption. There are few data available for the effects of environmental conditions, i.e., atmospheric pressure and/or oxygen concentration, on osteoporosis. This study examined the effects of mild hyperbaric oxygen at 1317 hPa with 40% oxygen on unloading-induced osteoporosis. MATERIALS AND

methodsEighteen 8-week old male Wistar rats were randomly divided into three groups: the control for 21 days without unloading and mild hyperbaric oxygen (NOR, n = 6), the unloading for 21 days and recovery for 10 days without mild hyperbaric oxygen (HU + NOR, n = 6), and the unloading for 21 days and recovery for 10 days with mild hyperbaric oxygen (HU + MHO, n = 6).

resultsThe cortical thickness and trabecular bone surface area were decreased in the HU + NOR group compared to the NOR group. There were no differences between the NOR and HU + MHO groups. Osteoclast surface area and Sclerostin (Sost) mRNA expression levels were decreased in the HU + MHO group compared to the HU + NOR group. These results suggested that the loss of the cortical and trabecular bone is inhibited by mild hyperbaric oxygen, because of an inhibition of osteoclasts and enhancement of bone formation with decreased Sost expression.

conclusionsWe conclude that exposure to mild hyperbaric oxygen partially protects from the osteoporosis induced by hindlimb unloading.

Indexed as

Hyperbaric OxygenationAnimalsBody WeightBone Morphogenetic ProteinsCancellous BoneCortical BoneGenetic MarkersGrowth PlateHindlimb SuspensionMaleOsteocalcinOsteoclastsOsteoporosisPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaRANK LigandRats, WistarBone Morphogenetic ProteinsGenetic MarkersOsteocalcinPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPpargc1a protein, ratRANK LigandRNA, MessengerSost protein, ratBone lossHindlimb unloadingMild hyperbaric oxygenOsteoporosisOxidative metabolism

Identifiers

PMID32350615
OpenAlexW3021169448

What Socratic holds

Textmetadata
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 Socratic graph.