Oral bacterial composition associated with lung function and lung inflammation in a community-based Norwegian population

Abstract Background The oral cavity is the gateway to the bacteria community in the lung. Disruption of the symbiotic balance of the oral microbiota has been associated with respiratory diseases. However, little is known about the relationship between oral bacteria and respiratory outcomes in the ge...

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Main Authors: Rajesh Shigdel, Ane Johannessen, Huang Lin, Shyamal Peddada, Francisco Gómez Real, Tamar Ringel-Kulka, Cecilie Svanes, Randi Jacobsen Bertelsen
Format: Article
Language:English
Published: BMC 2023-07-01
Series:Respiratory Research
Subjects:
Online Access:https://doi.org/10.1186/s12931-023-02491-6
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author Rajesh Shigdel
Ane Johannessen
Huang Lin
Shyamal Peddada
Francisco Gómez Real
Tamar Ringel-Kulka
Cecilie Svanes
Randi Jacobsen Bertelsen
author_facet Rajesh Shigdel
Ane Johannessen
Huang Lin
Shyamal Peddada
Francisco Gómez Real
Tamar Ringel-Kulka
Cecilie Svanes
Randi Jacobsen Bertelsen
author_sort Rajesh Shigdel
collection DOAJ
description Abstract Background The oral cavity is the gateway to the bacteria community in the lung. Disruption of the symbiotic balance of the oral microbiota has been associated with respiratory diseases. However, little is known about the relationship between oral bacteria and respiratory outcomes in the general population. We aimed to describe the associations between oral bacteria, lung function, and lung inflammation in a community-based population. Methods Oral (gingival) samples were collected concurrently with spirometry tests in 477 adults (47% males, median age 28 years) from the RHINESSA study in Bergen, Norway. Bacterial DNA from the 16S rRNA gene from gingival fluid were sequenced by Illumina®MiSeq. Lung function was measured using spirometry and measurement of fractional exhaled nitric oxide (FeNO) were performed to examine airway inflammation. Differential abundance analysis was performed using ANCOM-BC, adjusting for weight, education, and smoking. Results The abundance of the genera Clostridiales , Achromobacter, Moraxella, Flavitalea and Helicobacter were significantly different among those with low FEV1 (< lower limit of normal (LLN)) as compared to normal FEV1 i.e. ≥ LLN. Twenty-three genera differed in abundance between among those with low FVC < LLN as compared to normal FEV1 ≥ LLN. The abundance of 27 genera from phyla Actinobacteria, Bacteroidetes, Firmicutes, Proteobacteria and Sacchribacteria differed significantly between elevated FeNO levels (≥ 50 ppb) compared to FeNO ≤ 25 ppb. Conclusion Oral bacterial composition was significantly different for those with low FEV or FVC as compared to those with normal lung function equal to or higher than LLN. Differential bacterial composition was also observed for elevated FeNO levels.
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spelling doaj.art-3cf2d8db698b456295a1c1c65eaffa612023-07-16T11:25:30ZengBMCRespiratory Research1465-993X2023-07-0124111210.1186/s12931-023-02491-6Oral bacterial composition associated with lung function and lung inflammation in a community-based Norwegian populationRajesh Shigdel0Ane Johannessen1Huang Lin2Shyamal Peddada3Francisco Gómez Real4Tamar Ringel-Kulka5Cecilie Svanes6Randi Jacobsen Bertelsen7Department of Clinical Science, University of BergenDepartment of Global Public Health and Primary Care, University of BergenEunice Kennedy Shriver National Institute of Child Health and Human DevelopmentEunice Kennedy Shriver National Institute of Child Health and Human DevelopmentDepartment of Clinical Science, University of BergenUNC Gillings School of Global Public Health, Department of Maternal and Child Health, The University of North Carolina at Chapel HillDepartment of Occupational Medicine, Haukeland University HospitalDepartment of Clinical Science, University of BergenAbstract Background The oral cavity is the gateway to the bacteria community in the lung. Disruption of the symbiotic balance of the oral microbiota has been associated with respiratory diseases. However, little is known about the relationship between oral bacteria and respiratory outcomes in the general population. We aimed to describe the associations between oral bacteria, lung function, and lung inflammation in a community-based population. Methods Oral (gingival) samples were collected concurrently with spirometry tests in 477 adults (47% males, median age 28 years) from the RHINESSA study in Bergen, Norway. Bacterial DNA from the 16S rRNA gene from gingival fluid were sequenced by Illumina®MiSeq. Lung function was measured using spirometry and measurement of fractional exhaled nitric oxide (FeNO) were performed to examine airway inflammation. Differential abundance analysis was performed using ANCOM-BC, adjusting for weight, education, and smoking. Results The abundance of the genera Clostridiales , Achromobacter, Moraxella, Flavitalea and Helicobacter were significantly different among those with low FEV1 (< lower limit of normal (LLN)) as compared to normal FEV1 i.e. ≥ LLN. Twenty-three genera differed in abundance between among those with low FVC < LLN as compared to normal FEV1 ≥ LLN. The abundance of 27 genera from phyla Actinobacteria, Bacteroidetes, Firmicutes, Proteobacteria and Sacchribacteria differed significantly between elevated FeNO levels (≥ 50 ppb) compared to FeNO ≤ 25 ppb. Conclusion Oral bacterial composition was significantly different for those with low FEV or FVC as compared to those with normal lung function equal to or higher than LLN. Differential bacterial composition was also observed for elevated FeNO levels.https://doi.org/10.1186/s12931-023-02491-6Oral microbiomeLung functionForced expiratory volumeFractional exhaled nitric oxideForced vital capacity
spellingShingle Rajesh Shigdel
Ane Johannessen
Huang Lin
Shyamal Peddada
Francisco Gómez Real
Tamar Ringel-Kulka
Cecilie Svanes
Randi Jacobsen Bertelsen
Oral bacterial composition associated with lung function and lung inflammation in a community-based Norwegian population
Respiratory Research
Oral microbiome
Lung function
Forced expiratory volume
Fractional exhaled nitric oxide
Forced vital capacity
title Oral bacterial composition associated with lung function and lung inflammation in a community-based Norwegian population
title_full Oral bacterial composition associated with lung function and lung inflammation in a community-based Norwegian population
title_fullStr Oral bacterial composition associated with lung function and lung inflammation in a community-based Norwegian population
title_full_unstemmed Oral bacterial composition associated with lung function and lung inflammation in a community-based Norwegian population
title_short Oral bacterial composition associated with lung function and lung inflammation in a community-based Norwegian population
title_sort oral bacterial composition associated with lung function and lung inflammation in a community based norwegian population
topic Oral microbiome
Lung function
Forced expiratory volume
Fractional exhaled nitric oxide
Forced vital capacity
url https://doi.org/10.1186/s12931-023-02491-6
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