Evidence map›Paper›PMID 30847252›Full record

ArticleJournal of periodontal & implant science2019

Adjunctive hyperbaric oxygen therapy for irradiated rat calvarial defects.

Heesuk An, Jung-Tae Lee, Seo-Eun Oh, Kyeong-Mee Park, Kyung-Seok Hu, Sungtae Kim, Moon-Kyu Chung

Open access · hybridAbstract read
In one paragraph

Article in Journal of periodontal & implant science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 27% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. 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

7 authors at 2 institutions in 1 country.

Heesuk AnDepartment of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.ORCID https://orcid.org/0000-0001-5657-8133
Jung-Tae LeeDepartment of Periodontology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea.ORCID https://orcid.org/0000-0001-5383-3004
Seo-Eun OhDepartment of Periodontology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea.ORCID https://orcid.org/0000-0003-3308-3423
Kyeong-Mee ParkDepartment of Advanced General Dentistry, Yonsei University College of Dentistry, Seoul, Korea.ORCID https://orcid.org/0000-0002-1301-0959
Kyung-Seok HuDivision in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea.ORCID https://orcid.org/0000-0002-9048-3805
Sungtae KimDepartment of Periodontology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Korea.ORCID https://orcid.org/0000-0001-6361-4104
Moon-Kyu ChungDepartment of Prosthodontics, Yonsei University College of Dentistry, Seoul, Korea.ORCID https://orcid.org/0000-0002-5095-4828
Yonsei University · KRSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim of this study was to conduct a histologic evaluation of irradiated calvarial defects in rats 4 weeks after applying fibroblast growth factor-2 (FGF-2) with hyaluronan or biphasic calcium phosphate (BCP) block in the presence or absence of adjunctive hyperbaric oxygen (HBO) therapy.

methodsTwenty rats were divided into HBO and non-HBO (NHBO) groups, each of which was divided into FGF-2 and BCP-block subgroups according to the grafted material. Localized radiation with a single 12-Gy dose was applied to the calvaria of rats to simulate radiotherapy. Four weeks after applying this radiation, 2 symmetrical circular defects with a diameter of 6 mm were created in the parietal bones of each animal. The right-side defect was filled with the materials mentioned above and the left-side defect was not filled (as a control). All defects were covered with a resorbable barrier membrane. During 4 weeks of healing, 1 hour of HBO therapy was applied to the rats in the HBO groups 5 times a week. The rats were then killed, and the calvarial specimens were harvested for radiographic and histologic analyses.

resultsNew bone formation was greatest in the FGF-2 subgroup, and improvement was not found in the BCP subgroup. HBO seemed to have a minimal effect on new bone formation. There was tendency for more angiogenesis in the HBO groups than the NHBO groups, but the group with HBO and FGF-2 did not show significantly better outcomes than the HBO-only group or the NHBO group with FGF-2.

conclusionsHBO exerted beneficial effects on angiogenesis in calvarial defects of irradiated rats over a 4-week healing period, but it appeared to have minimal effects on bone regeneration. FGF-2 seemed to enhance new bone formation and angiogenesis, but its efficacy appeared to be reduced when HBO was applied.

Indexed as

Biphasic calcium phosphateFibroblast growth factor-2Hyperbaric oxygen therapyRadiotherapy

Identifiers

PMID30847252
PMCPMC6399085
OpenAlexW2919761796

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.