Evidence map›Paper›PMID 22029638›Full record

ArticleJournal of periodontal research2012

Protease inhibitor levels in periodontal health and disease.

S Kretschmar, L Yin, F Roberts, R London, T T Flemmig, D Arushanov, K Kaiyala, W O Chung

Abstract readComparative Study
In one paragraph

Article in Journal of periodontal research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

12 citing papers in PubMed, 21 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

8 authors at 1 institution in 1 country.

S KretschmarDepartment of Oral Health Sciences, University of Washington, Seattle, WA, USA.
L Yin
F Roberts
R London
T T Flemmig
D Arushanov
K Kaiyala
W O Chung
University of Washington · US

Funding

Balancing expression of PRRs in epithelial innate immune responses to bacteriaR01DE019632 · NIDCR · UNIVERSITY OF WASHINGTON · PI CHUNG, WHASUN OH · 2009 to 2013
$1.7M
NIDCR NIH HHS R01 DE019632NIDCR NIH HHS R01DE019632
6 · The paper itself

Abstract

BACKGROUND AND

objectiveOur previous study showed that protease inhibitors were attenuated by the periodontal pathogen Porphyromonas gingivalis in cultured gingival epithelial cells. We hypothesize that fewer protease inhibitors would be present in more advanced periodontal disease sites, where the level of P. gingivalis may be high. The goal of this study was to investigate the relationship between the protease inhibitor [secretory leukocyte protease inhibitor (SLPI), elastase-specific inhibitor (ELAFIN) and squamous cell carcinoma antigen (SCCA)] levels in gingival crevicular fluid and the number of P. gingivalis micro-organisms in subgingival plaque. MATERIAL AND

methodsPlaque samples from subjects without (n = 18) and with moderate to advanced periodontitis (n = 41) were used to quantify P. gingivalis using real-time PCR. Protease inhibitor levels in the gingival crevicular fluid of all the subjects were determined by ELISA.

resultsP. gingivalis was detected in 68.3% of patients with periodontitis, while 16.7% of subjects without periodontitis had a detectable level of P. gingivalis. Patients with periodontitis and P. gingivalis in their plaque exhibited lower SLPI and ELAFIN levels (p < 0.001) compared with control subjects without periodontitis. Secretory leukocyte protease inhibitor was also reduced (p < 0.05) in gingival crevicular fluid of periodontitis patients without a detectable level of P. gingivalis. Periodontitis patients with high vs. low levels of P. gingivalis exhibited reciprocal mean levels of SLPI and ELAFIN concentrations.

conclusionThe reduced concentrations of SLPI and ELAFIN may contribute to the loss of host protective capacity and increase susceptibility to breakdown from chronic infection. The work of this investigation may aid in finding diagnostic and prognostic markers in periodontal health and disease and may also help in finding pharmacological targets directed against periodontal inflammation.

Indexed as

AdultAntigens, NeoplasmBacterial LoadChronic PeriodontitisDental PlaqueDental Plaque IndexElafinFemaleGingival Crevicular FluidGingival HemorrhageHumansMaleMiddle AgedPeriodontal Attachment LossPeriodontal IndexPeriodontal PocketAntigens, NeoplasmElafinProtease InhibitorsSecretory Leukocyte Peptidase InhibitorSerpinssquamous cell carcinoma-related antigen

Identifiers

PMID22029638
PMCPMC3270203
OpenAlexW1947487509

What OpenQuestion holds

Textmetadata
LicenceTDM
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.