Research Global DNA Hypomethylation Is Associated with High Serum-Persistent Organic Pollutants in Greenlandic Inuit
BACKGROUND: Persistent organic pollutants (POPs) may influence epigenetic mechanisms; therefore, they could affect chromosomal stability and gene expression. DNA methylation, an epigenetic mechanism, has been associated with cancer initiation and progression. Greenlandic Inuit have some of the highe...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.358.5877 2023-05-15T14:31:48+02:00 Research Global DNA Hypomethylation Is Associated with High Serum-Persistent Organic Pollutants in Greenlandic Inuit Jennifer A. Rusiecki Andrea Baccarelli Valentina Bollati Letizia Tarantini Lee E. Moore Eva C. Bonefeld-jorgensen The Pennsylvania State University CiteSeerX Archives application/zip http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.358.5877 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.358.5877 Metadata may be used without restrictions as long as the oai identifier remains attached to it. ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/89/dc/Environ_Health_Perspect_2008_Nov_16_116(11)_1547-1552.tar.gz text ftciteseerx 2016-01-08T00:41:17Z BACKGROUND: Persistent organic pollutants (POPs) may influence epigenetic mechanisms; therefore, they could affect chromosomal stability and gene expression. DNA methylation, an epigenetic mechanism, has been associated with cancer initiation and progression. Greenlandic Inuit have some of the highest reported POP levels worldwide. OBJECTIVE: Our aim in this study was to evaluate the relationship between plasma POPs concentrations and global DNA methylation (percent 5-methylcytosine) in DNA extracted from blood samples from 70 Greenlandic Inuit. Blood samples were collected under the Arctic Monitoring and Assessment Program and previously analyzed for a battery of POPs. METHODS: We used pyrosequencing to estimate global DNA methylation via Alu and LINE-1 assays of bisulfite-treated DNA. We investigated correlations between plasma POP concentrations and global DNA methylation via correlation coefficients and linear regression analyses. RESULTS: We found inverse correlations between percents methylcytosine and many of the POP concentrations measured. Linear regressions, adjusting for age and cigarette smoking, showed statistically significant inverse linear relationships mainly for the Alu assay for p,p´-DDT (1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane; β = –0.26), p,p´-DDE [1,1-dichloro-2,2-bis(p-chlorophenyl) Text Arctic monitoring and assessment program Arctic greenlandic inuit Unknown Arctic |
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BACKGROUND: Persistent organic pollutants (POPs) may influence epigenetic mechanisms; therefore, they could affect chromosomal stability and gene expression. DNA methylation, an epigenetic mechanism, has been associated with cancer initiation and progression. Greenlandic Inuit have some of the highest reported POP levels worldwide. OBJECTIVE: Our aim in this study was to evaluate the relationship between plasma POPs concentrations and global DNA methylation (percent 5-methylcytosine) in DNA extracted from blood samples from 70 Greenlandic Inuit. Blood samples were collected under the Arctic Monitoring and Assessment Program and previously analyzed for a battery of POPs. METHODS: We used pyrosequencing to estimate global DNA methylation via Alu and LINE-1 assays of bisulfite-treated DNA. We investigated correlations between plasma POP concentrations and global DNA methylation via correlation coefficients and linear regression analyses. RESULTS: We found inverse correlations between percents methylcytosine and many of the POP concentrations measured. Linear regressions, adjusting for age and cigarette smoking, showed statistically significant inverse linear relationships mainly for the Alu assay for p,p´-DDT (1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane; β = –0.26), p,p´-DDE [1,1-dichloro-2,2-bis(p-chlorophenyl) |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Jennifer A. Rusiecki Andrea Baccarelli Valentina Bollati Letizia Tarantini Lee E. Moore Eva C. Bonefeld-jorgensen |
spellingShingle |
Jennifer A. Rusiecki Andrea Baccarelli Valentina Bollati Letizia Tarantini Lee E. Moore Eva C. Bonefeld-jorgensen Research Global DNA Hypomethylation Is Associated with High Serum-Persistent Organic Pollutants in Greenlandic Inuit |
author_facet |
Jennifer A. Rusiecki Andrea Baccarelli Valentina Bollati Letizia Tarantini Lee E. Moore Eva C. Bonefeld-jorgensen |
author_sort |
Jennifer A. Rusiecki |
title |
Research Global DNA Hypomethylation Is Associated with High Serum-Persistent Organic Pollutants in Greenlandic Inuit |
title_short |
Research Global DNA Hypomethylation Is Associated with High Serum-Persistent Organic Pollutants in Greenlandic Inuit |
title_full |
Research Global DNA Hypomethylation Is Associated with High Serum-Persistent Organic Pollutants in Greenlandic Inuit |
title_fullStr |
Research Global DNA Hypomethylation Is Associated with High Serum-Persistent Organic Pollutants in Greenlandic Inuit |
title_full_unstemmed |
Research Global DNA Hypomethylation Is Associated with High Serum-Persistent Organic Pollutants in Greenlandic Inuit |
title_sort |
research global dna hypomethylation is associated with high serum-persistent organic pollutants in greenlandic inuit |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.358.5877 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic monitoring and assessment program Arctic greenlandic inuit |
genre_facet |
Arctic monitoring and assessment program Arctic greenlandic inuit |
op_source |
ftp://ftp.ncbi.nlm.nih.gov/pub/pmc/89/dc/Environ_Health_Perspect_2008_Nov_16_116(11)_1547-1552.tar.gz |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.358.5877 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766305330040406016 |