Influence of tobacco and e-cig smoke on intestinal microbiota: a systematic review
Abstract Background Intestinal microbiota (IM) plays a crucial role in maintaining human body homeostasis, yet it is highly susceptible to lifestyle changes and environmental factors, such as tobacco and e-cig smoking. This systematic review aims to investigate the relationship between smoking and I...
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| Veröffentlicht in: | European journal of public health 2020-09, Vol.30 (Supplement_5) |
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| creator | Giffi, M Antinozzi, M Sini, N Valeriani, F Gallè, F Romano Spica, V Liguori, G De Vito, C Cattaruzza, M S |
| description | Abstract
Background
Intestinal microbiota (IM) plays a crucial role in maintaining human body homeostasis, yet it is highly susceptible to lifestyle changes and environmental factors, such as tobacco and e-cig smoking.
This systematic review aims to investigate the relationship between smoking and IM in healthy humans, by assessing abundance of Phyla and species' variability.
Methods
PubMed, Scopus and Web of Science were searched until April 2019. Studies assessing IM of healthy adult tobacco/e-cig smokers, collected on faecal samples and analysed with genome sequencing of rRNA 16 S, were included. Any type of study design, described in English, was considered. Quality assessment was performed with Methodological index for non-randomized studies and Joanna Briggs Institute Critical Appraisal tool for cross-sectional studies.
Results
Eight out of 1,838 studies (one controlled prospective and seven cross-sectional studies) were included. The only controlled prospective study found a significant increase in α and β-diversity, an increase in Firmicutes (p = 0.014) and a decrease in Bacteroidetes (p = 0.019) after a smoking cessation intervention. In cross- sectional studies, five out of seven studies found a statistically significant decrease in α-diversity among tobacco/e-cig smokers, while results on β-diversity were more contradictory. One out of two studies evaluating Firmicutes found a significant decrease in smokers (p = 0.047). The only study assessing Bacteroidetes found a significant increase among smokers (p = 0.015). Five studies analysed genera, three of them found a decrease in Bacteroides and two an increase in Prevotella.
Conclusions
What seems to emerge is a decreasing species’ variability in smokers, yet it is difficult to profile IM in smokers in terms of phyla’s abundance, because of few studies available and some further limitations, such as small sample sizes and lack of adjusted analysis to cope with confounding factors like gender, diet and other lifestyles.
Key messages
There is a decrease in species’ variability among smokers.
Further studies are needed to assess abundance of phyla in healthy smokers, taking into account confounding factors. |
| doi_str_mv | 10.1093/eurpub/ckaa166.424 |
| format | Article |
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Background
Intestinal microbiota (IM) plays a crucial role in maintaining human body homeostasis, yet it is highly susceptible to lifestyle changes and environmental factors, such as tobacco and e-cig smoking.
This systematic review aims to investigate the relationship between smoking and IM in healthy humans, by assessing abundance of Phyla and species' variability.
Methods
PubMed, Scopus and Web of Science were searched until April 2019. Studies assessing IM of healthy adult tobacco/e-cig smokers, collected on faecal samples and analysed with genome sequencing of rRNA 16 S, were included. Any type of study design, described in English, was considered. Quality assessment was performed with Methodological index for non-randomized studies and Joanna Briggs Institute Critical Appraisal tool for cross-sectional studies.
Results
Eight out of 1,838 studies (one controlled prospective and seven cross-sectional studies) were included. The only controlled prospective study found a significant increase in α and β-diversity, an increase in Firmicutes (p = 0.014) and a decrease in Bacteroidetes (p = 0.019) after a smoking cessation intervention. In cross- sectional studies, five out of seven studies found a statistically significant decrease in α-diversity among tobacco/e-cig smokers, while results on β-diversity were more contradictory. One out of two studies evaluating Firmicutes found a significant decrease in smokers (p = 0.047). The only study assessing Bacteroidetes found a significant increase among smokers (p = 0.015). Five studies analysed genera, three of them found a decrease in Bacteroides and two an increase in Prevotella.
Conclusions
What seems to emerge is a decreasing species’ variability in smokers, yet it is difficult to profile IM in smokers in terms of phyla’s abundance, because of few studies available and some further limitations, such as small sample sizes and lack of adjusted analysis to cope with confounding factors like gender, diet and other lifestyles.
Key messages
There is a decrease in species’ variability among smokers.
Further studies are needed to assess abundance of phyla in healthy smokers, taking into account confounding factors.</description><identifier>ISSN: 1101-1262</identifier><identifier>EISSN: 1464-360X</identifier><identifier>DOI: 10.1093/eurpub/ckaa166.424</identifier><language>eng</language><publisher>Oxford: Oxford University Press</publisher><subject>Abundance ; Bacteroidetes ; Cigarette smoking ; Confounding (Statistics) ; Cross-sectional studies ; Drug addiction ; Environmental aspects ; Environmental factors ; Firmicutes ; Gene sequencing ; Genomes ; Homeostasis ; Human body ; Intervention ; Intestinal microflora ; Intestine ; Lifestyles ; Microbiota ; Public health ; Quality assessment ; Quality control ; rRNA ; Smoking ; Species ; Statistical methods ; Systematic review ; Tobacco ; Variability</subject><ispartof>European journal of public health, 2020-09, Vol.30 (Supplement_5)</ispartof><rights>The Author(s) 2020. Published by Oxford University Press on behalf of the European Public Health Association. All rights reserved. 2020</rights><rights>The Author(s) 2020. Published by Oxford University Press on behalf of the European Public Health Association. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27843,27901,27902</link.rule.ids></links><search><creatorcontrib>Giffi, M</creatorcontrib><creatorcontrib>Antinozzi, M</creatorcontrib><creatorcontrib>Sini, N</creatorcontrib><creatorcontrib>Valeriani, F</creatorcontrib><creatorcontrib>Gallè, F</creatorcontrib><creatorcontrib>Romano Spica, V</creatorcontrib><creatorcontrib>Liguori, G</creatorcontrib><creatorcontrib>De Vito, C</creatorcontrib><creatorcontrib>Cattaruzza, M S</creatorcontrib><title>Influence of tobacco and e-cig smoke on intestinal microbiota: a systematic review</title><title>European journal of public health</title><description>Abstract
Background
Intestinal microbiota (IM) plays a crucial role in maintaining human body homeostasis, yet it is highly susceptible to lifestyle changes and environmental factors, such as tobacco and e-cig smoking.
This systematic review aims to investigate the relationship between smoking and IM in healthy humans, by assessing abundance of Phyla and species' variability.
Methods
PubMed, Scopus and Web of Science were searched until April 2019. Studies assessing IM of healthy adult tobacco/e-cig smokers, collected on faecal samples and analysed with genome sequencing of rRNA 16 S, were included. Any type of study design, described in English, was considered. Quality assessment was performed with Methodological index for non-randomized studies and Joanna Briggs Institute Critical Appraisal tool for cross-sectional studies.
Results
Eight out of 1,838 studies (one controlled prospective and seven cross-sectional studies) were included. The only controlled prospective study found a significant increase in α and β-diversity, an increase in Firmicutes (p = 0.014) and a decrease in Bacteroidetes (p = 0.019) after a smoking cessation intervention. In cross- sectional studies, five out of seven studies found a statistically significant decrease in α-diversity among tobacco/e-cig smokers, while results on β-diversity were more contradictory. One out of two studies evaluating Firmicutes found a significant decrease in smokers (p = 0.047). The only study assessing Bacteroidetes found a significant increase among smokers (p = 0.015). Five studies analysed genera, three of them found a decrease in Bacteroides and two an increase in Prevotella.
Conclusions
What seems to emerge is a decreasing species’ variability in smokers, yet it is difficult to profile IM in smokers in terms of phyla’s abundance, because of few studies available and some further limitations, such as small sample sizes and lack of adjusted analysis to cope with confounding factors like gender, diet and other lifestyles.
Key messages
There is a decrease in species’ variability among smokers.
Further studies are needed to assess abundance of phyla in healthy smokers, taking into account confounding factors.</description><subject>Abundance</subject><subject>Bacteroidetes</subject><subject>Cigarette smoking</subject><subject>Confounding (Statistics)</subject><subject>Cross-sectional studies</subject><subject>Drug addiction</subject><subject>Environmental aspects</subject><subject>Environmental factors</subject><subject>Firmicutes</subject><subject>Gene sequencing</subject><subject>Genomes</subject><subject>Homeostasis</subject><subject>Human body</subject><subject>Intervention</subject><subject>Intestinal microflora</subject><subject>Intestine</subject><subject>Lifestyles</subject><subject>Microbiota</subject><subject>Public health</subject><subject>Quality assessment</subject><subject>Quality control</subject><subject>rRNA</subject><subject>Smoking</subject><subject>Species</subject><subject>Statistical methods</subject><subject>Systematic review</subject><subject>Tobacco</subject><subject>Variability</subject><issn>1101-1262</issn><issn>1464-360X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>7TQ</sourceid><recordid>eNqNkFFLwzAUhYMoOKd_wKeAz91ykzRtfZOhczAQRMG3kKSpZFubmrTK_r2R7gf4dA_ccw6HD6FbIAsgFVvaMfSjXpq9UiDEglN-hmbABc-YIB_nSQOBDKigl-gqxh0hJC9KOkOvm645jLYzFvsGD14rYzxWXY1tZtwnjq3fp1eHXTfYOLhOHXDrTPDa-UHdY4XjMQ62VYMzONhvZ3-u0UWjDtHenO4cvT89vq2es-3LerN62GYGcsYzQRpeAocGbCFAVUQxU-e0ZE2dl7oAoUlNLasroYAwbQtdlJpqxnhNja04m6O7qbcP_mtM4-TOjyENjJLyVJlXeV4kF51caXOMwTayD65V4SiByD92cmInT-xkYpdC2RTyY_8f_y8adXPu</recordid><startdate>20200901</startdate><enddate>20200901</enddate><creator>Giffi, M</creator><creator>Antinozzi, M</creator><creator>Sini, N</creator><creator>Valeriani, F</creator><creator>Gallè, F</creator><creator>Romano Spica, V</creator><creator>Liguori, G</creator><creator>De Vito, C</creator><creator>Cattaruzza, M S</creator><general>Oxford University Press</general><general>Oxford Publishing Limited (England)</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7T2</scope><scope>7TQ</scope><scope>C1K</scope><scope>DHY</scope><scope>DON</scope><scope>K9.</scope><scope>NAPCQ</scope></search><sort><creationdate>20200901</creationdate><title>Influence of tobacco and e-cig smoke on intestinal microbiota: a systematic review</title><author>Giffi, M ; Antinozzi, M ; Sini, N ; Valeriani, F ; Gallè, F ; Romano Spica, V ; Liguori, G ; De Vito, C ; Cattaruzza, M S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1534-60f48141f1e761a90a3cd5283fd58b716b0d2e3d96a103be7b78b2b334d2ce943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Abundance</topic><topic>Bacteroidetes</topic><topic>Cigarette smoking</topic><topic>Confounding (Statistics)</topic><topic>Cross-sectional studies</topic><topic>Drug addiction</topic><topic>Environmental aspects</topic><topic>Environmental factors</topic><topic>Firmicutes</topic><topic>Gene sequencing</topic><topic>Genomes</topic><topic>Homeostasis</topic><topic>Human body</topic><topic>Intervention</topic><topic>Intestinal microflora</topic><topic>Intestine</topic><topic>Lifestyles</topic><topic>Microbiota</topic><topic>Public health</topic><topic>Quality assessment</topic><topic>Quality control</topic><topic>rRNA</topic><topic>Smoking</topic><topic>Species</topic><topic>Statistical methods</topic><topic>Systematic review</topic><topic>Tobacco</topic><topic>Variability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Giffi, M</creatorcontrib><creatorcontrib>Antinozzi, M</creatorcontrib><creatorcontrib>Sini, N</creatorcontrib><creatorcontrib>Valeriani, F</creatorcontrib><creatorcontrib>Gallè, F</creatorcontrib><creatorcontrib>Romano Spica, V</creatorcontrib><creatorcontrib>Liguori, G</creatorcontrib><creatorcontrib>De Vito, C</creatorcontrib><creatorcontrib>Cattaruzza, M S</creatorcontrib><collection>CrossRef</collection><collection>Health and Safety Science Abstracts (Full archive)</collection><collection>PAIS Index</collection><collection>Environmental Sciences and Pollution Management</collection><collection>PAIS International</collection><collection>PAIS International (Ovid)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Premium</collection><jtitle>European journal of public health</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Giffi, M</au><au>Antinozzi, M</au><au>Sini, N</au><au>Valeriani, F</au><au>Gallè, F</au><au>Romano Spica, V</au><au>Liguori, G</au><au>De Vito, C</au><au>Cattaruzza, M S</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of tobacco and e-cig smoke on intestinal microbiota: a systematic review</atitle><jtitle>European journal of public health</jtitle><date>2020-09-01</date><risdate>2020</risdate><volume>30</volume><issue>Supplement_5</issue><issn>1101-1262</issn><eissn>1464-360X</eissn><abstract>Abstract
Background
Intestinal microbiota (IM) plays a crucial role in maintaining human body homeostasis, yet it is highly susceptible to lifestyle changes and environmental factors, such as tobacco and e-cig smoking.
This systematic review aims to investigate the relationship between smoking and IM in healthy humans, by assessing abundance of Phyla and species' variability.
Methods
PubMed, Scopus and Web of Science were searched until April 2019. Studies assessing IM of healthy adult tobacco/e-cig smokers, collected on faecal samples and analysed with genome sequencing of rRNA 16 S, were included. Any type of study design, described in English, was considered. Quality assessment was performed with Methodological index for non-randomized studies and Joanna Briggs Institute Critical Appraisal tool for cross-sectional studies.
Results
Eight out of 1,838 studies (one controlled prospective and seven cross-sectional studies) were included. The only controlled prospective study found a significant increase in α and β-diversity, an increase in Firmicutes (p = 0.014) and a decrease in Bacteroidetes (p = 0.019) after a smoking cessation intervention. In cross- sectional studies, five out of seven studies found a statistically significant decrease in α-diversity among tobacco/e-cig smokers, while results on β-diversity were more contradictory. One out of two studies evaluating Firmicutes found a significant decrease in smokers (p = 0.047). The only study assessing Bacteroidetes found a significant increase among smokers (p = 0.015). Five studies analysed genera, three of them found a decrease in Bacteroides and two an increase in Prevotella.
Conclusions
What seems to emerge is a decreasing species’ variability in smokers, yet it is difficult to profile IM in smokers in terms of phyla’s abundance, because of few studies available and some further limitations, such as small sample sizes and lack of adjusted analysis to cope with confounding factors like gender, diet and other lifestyles.
Key messages
There is a decrease in species’ variability among smokers.
Further studies are needed to assess abundance of phyla in healthy smokers, taking into account confounding factors.</abstract><cop>Oxford</cop><pub>Oxford University Press</pub><doi>10.1093/eurpub/ckaa166.424</doi><oa>free_for_read</oa></addata></record> |
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| source | Oxford Journals Open Access Collection; PAIS Index; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; Alma/SFX Local Collection |
| subjects | Abundance Bacteroidetes Cigarette smoking Confounding (Statistics) Cross-sectional studies Drug addiction Environmental aspects Environmental factors Firmicutes Gene sequencing Genomes Homeostasis Human body Intervention Intestinal microflora Intestine Lifestyles Microbiota Public health Quality assessment Quality control rRNA Smoking Species Statistical methods Systematic review Tobacco Variability |
| title | Influence of tobacco and e-cig smoke on intestinal microbiota: a systematic review |
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