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Genomic analysis suggests higher susceptibility of children to air pollution
DM. van Leeuwen, M. Pedersen, PJ. Hendriksen, A. Boorsma, MH. van Herwijnen, RW. Gottschalk, M. Kirsch-Volders, LE. Knudsen, RJ. Srám, E. Bajak, JH. van Delft, JC. Kleinjans,
Language English Country Great Britain
Document type Journal Article, Multicenter Study, Research Support, Non-U.S. Gov't
NLK
Free Medical Journals
from 1996 to 1 year ago
Open Access Digital Library
from 1996-01-01
Medline Complete (EBSCOhost)
from 1996-01-01 to 1 year ago
PubMed
18332047
DOI
10.1093/carcin/bgn065
Knihovny.cz E-resources
- MeSH
- Child MeSH
- Adult MeSH
- Genetic Predisposition to Disease * MeSH
- Humans MeSH
- Nuclear Family MeSH
- Receptors, Chemokine genetics MeSH
- Gene Expression Regulation MeSH
- RNA genetics MeSH
- Parents MeSH
- RNA Splicing genetics MeSH
- Gene Expression Profiling * MeSH
- Air Pollution * MeSH
- Check Tag
- Child MeSH
- Adult MeSH
- Humans MeSH
- Male MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Multicenter Study MeSH
- Research Support, Non-U.S. Gov't MeSH
- Geographicals
- Czech Republic MeSH
Differences in biological responses to exposure to hazardous airborne substances between children and adults have been reported, suggesting children to be more susceptible. Aim of this study was to improve our understanding of differences in susceptibility in cancer risk associated with air pollution by comparing genome-wide gene expression profiles in peripheral blood of children and their parents. Gene expression analysis was performed in blood from children and parents living in two different regions in the Czech Republic with different levels of air pollution. Data were analyzed by two different approaches: one method first selected significantly differentially expressed genes and analyzed these gene lists for overrepresented biological processes, whereas the other applied the T-profiler tool to directly perform pathway analyses on the total gene set without preselection of significantly modulated gene expressions. In addition, gene expressions in both children and adults were investigated for associations with micronuclei frequencies. Both analysis approaches returned considerably more genes or gene groups and pathways that significantly differed between children from both regions than between parents. Very little overlap was observed between children and adults. The two most important biological processes or molecular functions significantly modulated in children, but not in adults, are nucleosome and immune response related. Our study suggests differences between children and adults in relation to air pollution exposure at the transcriptome level. The findings underline the necessity of implementing environmental health policy measures specifically for protecting children's health.
References provided by Crossref.org
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