Evidence map›Paper›PMID 26244896›Full record

ArticlePloS one2015

Functional Local Renin-Angiotensin System in Human and Rat Periodontal Tissue.

Carlos F Santos, Ana C Morandini, Thiago J Dionísio, Flávio A Faria, Marta C Lima, Caio M Figueiredo, Bella L Colombini-Ishikiriama, Carla R Sipert, Rubens P Maciel, Ana P Akashi and 10 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

41 citing papers in PubMed, 94 citations in OpenAlex.

  1. Article
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  9. Infectious and Immunological Links Between Periodontitis and COVID-19: A Review.Medical science monitor : international medical journal of experimental and clinical research · 2025
    Review
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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

20 authors at 3 institutions in 2 countries.

Carlos F SantosDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Ana C MorandiniDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Thiago J DionísioDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Flávio A FariaDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Marta C LimaDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Caio M FigueiredoDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Bella L Colombini-IshikiriamaDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Carla R SipertDepartment of Restorative Dentistry, School of Dentistry, University of São Paulo, São Paulo, São Paulo, Brazil.
Rubens P MacielDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Ana P AkashiDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Gabriela P SouzaDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Gustavo P GarletDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Camila O RodiniDepartment of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, São Paulo, Brazil.
Sandra L AmaralDepartment of Physical Education, Science Faculty, São Paulo State University, Bauru, São Paulo, Brazil.
Christiane BecariSchool of Medicine of Ribeirão Preto, Riberão Preto, University of São Paulo, Riberão Preto, São Paulo, Brazil.
Maria C SalgadoSchool of Medicine of Ribeirão Preto, Riberão Preto, University of São Paulo, Riberão Preto, São Paulo, Brazil.
Eduardo B OliveiraSchool of Medicine of Ribeirão Preto, Riberão Preto, University of São Paulo, Riberão Preto, São Paulo, Brazil.
Isaac MatusDepartment of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America.
Daniela N DidierDepartment of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America.
Andrew S GreeneDepartment of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States of America.
Universidade de São Paulo · BRMedical College of Wisconsin · USUniversidade Estadual Paulista (Unesp) · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The initiation or progression of periodontitis might involve a local renin-angiotensin system (RAS) in periodontal tissue. The aim of this study was to further characterize the local RAS in human and rat periodontal tissues between healthy and periodontally-affected tissue. Components of the RAS were investigated using in vitro, ex vivo and in vivo experiments involving both human and Wistar rat periodontium. Although not upregulated when challenged with P. gingivalis-lipopolysaccharide, human gingival and periodontal ligament fibroblasts expressed RAS components. Likewise, healthy and inflamed human gingiva expressed RAS components, some of which were shown to be functional, yet no differences in expression were found between healthy and diseased gingiva. However, in inflamed tissue the immunoreactivity was greater for the AT1R compared to AT2R in fibroblasts. When compared to healthy tissue, ACE activity was increased in human gingiva from volunteers with gingivitis. Human-gingiva homogenates generated Ang II, Ang 1-9 and Ang 1-7 when incubated with precursors. In gingiva homogenates, Ang II formation from Ang I was nearly abolished only when captopril and chymostatin were combined. Ang 1-7 formation was significantly greater when human gingiva homogenates were incubated with chymostatin alone compared to incubation without any inhibitor, only captopril, or captopril and chymostatin. In rat gingiva, RAS components were also found; their expression was not different between healthy and experimentally induced periodontitis (EP) groups. However, renin inhibition (aliskiren) and an AT1R antagonist (losartan) significantly blocked EP-alveolar-bone loss in rats. Collectively, these data are consistent with the hypothesis that a local RAS system is not only present but is also functional in both human and rat periodontal tissue. Furthermore, blocking AT1R and renin can significantly prevent periodontal bone loss induced by EP in rats.

Indexed as

Renin-Angiotensin SystemAdultAmino Acid SequenceAngiotensin IAngiotensin IIAnimalsCells, CulturedFemaleGingivaHumansInflammationMaleMiddle AgedPeptide FragmentsPeriodontitisPeriodontiumAngiotensin Iangiotensin I (1-7)angiotensin I (1-9)Angiotensin IIPeptide FragmentsReceptors, AngiotensinRenin

Identifiers

PMID26244896
PMCPMC4526652
OpenAlexW1856639763

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.