Evidence map›Paper›PMID 29934515›Full record

ArticleScientific reports2018

Localization and density of Porphyromonas gingivalis and Tannerella forsythia in gingival and subgingival granulation tissues affected by chronic or aggressive periodontitis.

G Amodini Rajakaruna, Mariko Negi, Keisuke Uchida, Masaki Sekine, Asuka Furukawa, Takashi Ito, Daisuke Kobayashi, Yoshimi Suzuki, Takumi Akashi, Makoto Umeda and 3 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

20 citing papers in PubMed, 39 citations in OpenAlex.

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  12. Topical application ofInternational journal of molecular medicine · 2022
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  16. Current research in microbial sciences · 2020
    Article
  17. Review
  18. Journal of oral microbiology · 2020
    Article
  19. Article
  20. 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

13 authors at 4 institutions in 1 country.

G Amodini RajakarunaDepartment of Periodontology, Graduate School and Faculty of Dentistry, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.
Mariko NegiDepartment of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.
Keisuke UchidaDivision of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, 113-8510, Japan.
Masaki SekineDivision of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, 113-8510, Japan.
Asuka FurukawaDepartment of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.
Takashi ItoDepartment of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.
Daisuke KobayashiDepartment of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.
Yoshimi SuzukiDepartment of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.
Takumi AkashiDivision of Surgical Pathology, Tokyo Medical and Dental University Hospital, Tokyo, 113-8510, Japan.
Makoto UmedaDepartment of Periodontology, Osaka Dental University, Osaka, 540-0008, Japan.
Walter MeinzerDepartment of Periodontology, Graduate School and Faculty of Dentistry, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.
Yuichi IzumiDepartment of Periodontology, Graduate School and Faculty of Dentistry, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan.
Yoshinobu EishiDepartment of Human Pathology, Graduate School and Faculty of Medicine, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan. eishi.path@tmd.ac.jp.
Tokyo Medical and Dental University · JPTokyo Medical and Dental University Hospital · JPJapan Dental Association · JPOsaka Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Porphyromonas gingivalis and Tannerella forsythia have been thought to be associated with periodontitis; however comprehensive histopathological localization of bacteria in affected human periodontal tissues is not well documented. In the present study, we examined formalin-fixed paraffin-embedded gingival and subgingival granulation tissues from 71 patients with chronic periodontitis and 11 patients with aggressive periodontitis, using immunohistochemistry with novel monoclonal antibodies specific to P. gingivalis or T. forsythia, together with quantitative real-time polymerase chain reaction for each bacterial DNA. Immunohistochemisty revealed both bacterial species extracellularly, as aggregates or within bacterial plaque, and intracellularly in stromal inflammatory cells, squamous epithelium, and capillary endothelium of granulation tissue. Combined analysis with the results from polymerase chain reaction suggested that localization and density of T. forsythia is closely associated with those of P. gingivalis, and that bacterial density is a factor responsible for the cell-invasiveness and tissue-invasiveness of these periodontal bacteria. Detection of these bacteria in the capillary endothelium in some samples suggested possible bacterial translocation into the systemic circulation from inflamed gingival and subgingival granulation tissues. Immunohistochemistry with the novel antibodies showed high specificity and sensitivity, and can be used to locate these periodontal bacteria in routinely-used formalin-fixed paraffin-embedded human tissue sections from systemic locations.

Indexed as

AgedAggressive PeriodontitisChronic PeriodontitisFemaleGingivaHumansMaleMiddle AgedPorphyromonas gingivalisTannerella forsythia

Identifiers

PMID29934515
PMCPMC6014976
OpenAlexW2808979322

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.