Evidence map›Paper›PMID 32302049›Full record

ArticleJournal of diabetes investigation2020

Therapeutic potential for insulin on type 1 diabetes-associated periodontitis: Analysis of experimental periodontitis in streptozotocin-induced diabetic rats.

Toru Nishikawa, Yuki Suzuki, Noritaka Sawada, Yasuko Kobayashi, Nobuhisa Nakamura, Megumi Miyabe, Shin-Ichi Miyajima, Kei Adachi, Tomomi Minato, Makoto Mizutani and 8 more

Open access · goldAbstract read
In one paragraph

Article in Journal of diabetes investigation, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

13 citing papers in PubMed, 14 citations in OpenAlex.

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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

18 authors at 1 institution in 1 country.

Toru NishikawaDepartment of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Yuki SuzukiDepartment of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Noritaka SawadaDepartment of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Yasuko KobayashiDepartment of Internal Medicine, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Nobuhisa NakamuraDepartment of Internal Medicine, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Megumi MiyabeDepartment of Internal Medicine, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Shin-Ichi MiyajimaDepartment of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Kei AdachiDepartment of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Tomomi MinatoDepartment of Medical Technique, Aichi Gakuin University Dental Hospital, Nagoya, Japan.
Makoto MizutaniDepartment of Oral Anatomy, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Taku ToriumiDepartment of Oral Anatomy, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Norikazu OhnoDepartment of Oral Anatomy, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Takeshi KikuchiDepartment of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Masaki HondaDepartment of Oral Anatomy, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Toshihide NoguchiDepartment of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Akio MitaniDepartment of Periodontology, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Tatsuaki MatsubaraDepartment of Internal Medicine, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.
Keiko NaruseDepartment of Internal Medicine, School of Dentistry, Aichi Gakuin University, Nagoya, Japan.ORCID https://orcid.org/0000-0002-0062-0694
Aichi Gakuin University · JP

Funding

Scientific Reserch 16K20683Strategic Research AGU-Platform Formation (2008-2012)
6 · The paper itself

Abstract

AIMS/

introductionThe association between diabetes and periodontal disease is considered to be bidirectional. However, there is still controversy surrounding the relationship between periodontal disease and type 1 diabetes. We investigated whether insulin improves periodontitis without any local treatments for periodontitis under type 1 diabetes conditions using the ligature-induced experimental periodontitis model. MATERIALS AND

methodsType 1 diabetic rats were induced by streptozotocin injection. Experimental periodontitis was induced by ligature in normal and diabetic rats. Half of the diabetic rats were treated with insulin. Two weeks after the ligature, periodontitis was evaluated.

resultsInsulin treatment significantly improved inflammatory cell infiltration and inflammatory cytokine gene expression, leading to suppression of alveolar bone loss, in the periodontitis of diabetic rats. Insulin also suppressed the periodontitis-increased nitric oxide synthase-positive cells in periodontal tissue of the diabetic rats. Even without induction of periodontitis, diabetic rats showed decreased gingival blood flow and an increased number of nitric oxide synthase-positive cells in the gingiva and alveolar bone loss compared with normal rats, all of which were ameliorated by insulin treatment. We further confirmed that insulin directly suppressed lipopolysaccharide-induced inflammatory cytokine expressions in THP-1 cells.

conclusionsThere were abnormalities of periodontal tissue even without the induction of periodontitis in streptozotocin-induced diabetic rats. Insulin treatment significantly ameliorated periodontitis without local periodontitis treatment in diabetic rats. These data suggest the therapeutic impacts of insulin on periodontitis in type 1 diabetes.

Indexed as

AnimalsDiabetes Mellitus, ExperimentalDiabetes Mellitus, Type 1HumansHypoglycemic AgentsInsulinMalePeriodontitisRatsRats, Sprague-DawleyHypoglycemic AgentsInsulinInsulinPeriodontitisType 1 diabetes

Identifiers

PMID32302049
PMCPMC7610127
OpenAlexW3016873344

What OpenQuestion holds

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LicenceCC BY-NC
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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.