Evidence map›Paper›PMID 22794213›Full record

ArticleJournal of endodontics2012

Sexual dimorphism in periapical inflammation and bone loss from mitogen-activated protein kinase phosphatase-1 deficient mice.

Justin McAbee, Qiyan Li, Hong Yu, Keith L Kirkwood

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of endodontics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

9 citing papers in PubMed, 16 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

4 authors at 2 institutions in 2 countries.

Justin McAbeeDepartment of Oral Rehabilitation, Division of Endodontics, Medical University of South Carolina, 173 Ashley Ave., Charleston, SC 29425, USA.
Qiyan Li
Hong Yu
Keith L Kirkwood
Medical University of South Carolina · USFirst People's Hospital of Yunnan Province · CN

Funding

THE ROLE OF THE RNA BINDING PROTEIN LA IN ORAL TUMOR BIOLOGYP20RR017696 · NCRR · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI KIRKWOOD, KEITH L · 2002 to 2011
$20.7M
Post-Transcriptional Regulation of Periodontal DiseR01DE021423 · NIDCR · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI KIRKWOOD, KEITH L · 2011 to 2015
$2.1M
Negative Regulation of Innate Immune Responses through MAPK PhosphatasesR01DE018290 · NIDCR · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KIRKWOOD, KEITH L · 2007 to 2011
$1.8M
NCRR NIH HHS P20 RR017696NIDCR NIH HHS R01 DE018290NIDCR NIH HHS R01 DE021423
6 · The paper itself

Abstract

introductionMitogen-activated protein kinase (MAPK) phosphatase-1 (MKP-1) has been shown to be a key negative regulator of the MAPK pathways of the innate immune system. The impact of MKP-1 in an endodontic model has yet to be studied. Thus, the purpose of this study was to determine the role of MKP-1 in a bacterial-driven model of pathologic endodontic bone loss.

methodsPulps were exposed in both lower first molars of 10-week-old mkp-1(+/+) and mkp-1(-/-) mice and left open to the oral environment for either 3 or 8 weeks. At death, mandibles were harvested and scanned by micro-computed tomography (μCT) to determine periapical bone loss. Histopathologic scoring was then performed on the samples to determine the amount of inflammatory infiltrate within the periapical microenvironment.

resultsSignificant bone loss and inflammatory infiltrate were found in all experimental groups when compared with control. No statistical difference was found between mkp-1(+/+) and mkp-1(-/-) at either time point with respect to bone loss or inflammatory infiltrate. At 8 weeks, male mkp-1(-/-) mice were found to have significantly more bone loss and inflammatory infiltrate when compared with female mkp-1(-/-) mice. There was also a significant correlation between an increase in bone loss and increase in inflammatory infiltrate.

conclusionsA sexual dimorphism exists in the periapical inflammatory process, where male mkp-1(-/-) mice have more inflammation than female mkp-1(-/-) mice. The increase in inflammatory infiltrate correlates to more bone loss in the male mice.

Indexed as

Sex CharacteristicsAlveolar Bone LossAnimalsDental Pulp ExposureDual Specificity Phosphatase 1FemaleImage Processing, Computer-AssistedImmunity, InnateInflammationMaleMandibular DiseasesMAP Kinase Signaling SystemMiceMice, Inbred C57BLMice, KnockoutMolarDual Specificity Phosphatase 1Dusp1 protein, mouse

Identifiers

PMID22794213
PMCPMC3399764
OpenAlexW2088291313

What OpenQuestion holds

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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.