Elevated Matrix Metalloproteinase Levels in Bronchi Infected with Periodontopathogenic Bacteria.

To determine whether bronchial colonisations/infections with periodontopathogenic bacteria are associated with elevated inflammatory markers such as MMPs, interleukins and Tumor necrosis factor alpha in the bronchial fluid.Periodontal status was assessed in consecutive outpatients planned for electi...

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Main Authors: Luca Bernasconi, Liza L Ramenzoni, Ahmed Al-Majid, Gabrielo M Tini, Sereina M Graber, Patrick R Schmidlin, Sarosh Irani
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2015-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4681451?pdf=render
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author Luca Bernasconi
Liza L Ramenzoni
Ahmed Al-Majid
Gabrielo M Tini
Sereina M Graber
Patrick R Schmidlin
Sarosh Irani
author_facet Luca Bernasconi
Liza L Ramenzoni
Ahmed Al-Majid
Gabrielo M Tini
Sereina M Graber
Patrick R Schmidlin
Sarosh Irani
author_sort Luca Bernasconi
collection DOAJ
description To determine whether bronchial colonisations/infections with periodontopathogenic bacteria are associated with elevated inflammatory markers such as MMPs, interleukins and Tumor necrosis factor alpha in the bronchial fluid.Periodontal status was assessed in consecutive outpatients planned for elective bronchoscopies, and PCR for periodontopathogenic bacteria was performed from a protected specimen brush sample taken from the bronchial mucosa. Additionally, MMPs, interleukins and Tumor necrosis factor alpha were measured in the bronchial fluid.Out of the four species assessed, one species was found in 13 of 91 (14%) patients, and two in 12 (13%), three in 13 (14%) and all four in 1 (1%) patient, respectively. In multiple linear regression models the presence of Treponema denticola showed a consistent pattern of positive effects in bronchial fluid (Bonferroni adjusted p-values) on the levels of MMP9 (p adj.: 0.028) and MMP12 (p adj.: 0.029). Active smoking was independently associated with increased levels of aMMP8 (p adj.: 0.005) and MMP9 (p adj.: 0.009). Levels of IL-1 ß, IL-8 and Tumor necrosis factor alpha measured in the bronchial fluid were not affected by the presence of periodontopathogenic bacteria.Bronchial colonisation/infection with Treponema denticola and smoking are independently associated with elevated MMPs (MMP9/MMP12 and MMP8/MMP9, respectively) in the bronchial fluid.
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spelling doaj.art-ca9155e960cb4da0b282dbcf8e95b2f42022-12-22T00:25:10ZengPublic Library of Science (PLoS)PLoS ONE1932-62032015-01-011012e014446110.1371/journal.pone.0144461Elevated Matrix Metalloproteinase Levels in Bronchi Infected with Periodontopathogenic Bacteria.Luca BernasconiLiza L RamenzoniAhmed Al-MajidGabrielo M TiniSereina M GraberPatrick R SchmidlinSarosh IraniTo determine whether bronchial colonisations/infections with periodontopathogenic bacteria are associated with elevated inflammatory markers such as MMPs, interleukins and Tumor necrosis factor alpha in the bronchial fluid.Periodontal status was assessed in consecutive outpatients planned for elective bronchoscopies, and PCR for periodontopathogenic bacteria was performed from a protected specimen brush sample taken from the bronchial mucosa. Additionally, MMPs, interleukins and Tumor necrosis factor alpha were measured in the bronchial fluid.Out of the four species assessed, one species was found in 13 of 91 (14%) patients, and two in 12 (13%), three in 13 (14%) and all four in 1 (1%) patient, respectively. In multiple linear regression models the presence of Treponema denticola showed a consistent pattern of positive effects in bronchial fluid (Bonferroni adjusted p-values) on the levels of MMP9 (p adj.: 0.028) and MMP12 (p adj.: 0.029). Active smoking was independently associated with increased levels of aMMP8 (p adj.: 0.005) and MMP9 (p adj.: 0.009). Levels of IL-1 ß, IL-8 and Tumor necrosis factor alpha measured in the bronchial fluid were not affected by the presence of periodontopathogenic bacteria.Bronchial colonisation/infection with Treponema denticola and smoking are independently associated with elevated MMPs (MMP9/MMP12 and MMP8/MMP9, respectively) in the bronchial fluid.http://europepmc.org/articles/PMC4681451?pdf=render
spellingShingle Luca Bernasconi
Liza L Ramenzoni
Ahmed Al-Majid
Gabrielo M Tini
Sereina M Graber
Patrick R Schmidlin
Sarosh Irani
Elevated Matrix Metalloproteinase Levels in Bronchi Infected with Periodontopathogenic Bacteria.
PLoS ONE
title Elevated Matrix Metalloproteinase Levels in Bronchi Infected with Periodontopathogenic Bacteria.
title_full Elevated Matrix Metalloproteinase Levels in Bronchi Infected with Periodontopathogenic Bacteria.
title_fullStr Elevated Matrix Metalloproteinase Levels in Bronchi Infected with Periodontopathogenic Bacteria.
title_full_unstemmed Elevated Matrix Metalloproteinase Levels in Bronchi Infected with Periodontopathogenic Bacteria.
title_short Elevated Matrix Metalloproteinase Levels in Bronchi Infected with Periodontopathogenic Bacteria.
title_sort elevated matrix metalloproteinase levels in bronchi infected with periodontopathogenic bacteria
url http://europepmc.org/articles/PMC4681451?pdf=render
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