The publication detail shows the title, authors (with indicators showing other profiled authors), information on the publishing organization, abstract and a link to the article in PubMed. This abstract is what is used to create the fingerprint of the publication. If any grants are referenced by the publication, they will be listed here as well.
Global DNA hypomethylation is associated with in utero exposure to cotinine and perfluorinated alkyl compounds.
Rafael Guerrero-Preston; Lynn R Goldman; Priscilla Brebi-Mieville; Carmen Ili-Gangas; Cynthia Lebron; Frank R Witter; Ben J Apelberg; Marina Hernández-Roystacher; Andrew Jaffe; Rolf U Halden; et al. (Profiled Authors: David Sidransky; Frank Witter; Rafael Guerrero-Preston; Rolf Halden; Benjamin Apelberg; Lynn Goldman)
Otolaryngology Department, Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, MD, USA. email@example.com
Epigenetics : official journal of the DNA Methylation Society 2010;5(6):539-46.
Environmental exposures in-utero may alter the epigenome, thus impacting chromosomal stability and gene expression. We hypothesized that in utero exposures to maternal smoking and perfluoroalkyl compounds (PFCs) are associated with global DNA hypomethylation in umbilical cord serum. Our objective was to determine if global DNA methylation could be used as a biomarker of in utero exposures to maternal smoking and PFCs. Using an ELISA-based method, global DNA methylation was quantified in umbilical cord serum from 30 newborns with high (> 10 ng/ml, mean 123.8 ng/ml), low (range 1-10 ng/ml, mean 1.6 ng/ml) and very low (< 1 ng/ml, mean 0.06 ng/ml) cord serum cotinine levels. Y chromosome analysis was performed to rule out maternal DNA cross-contamination. Cord serum global DNA methylation showed an inverse dose response to serum cotinine levels (p< 0.001). Global DNA methylation levels in cord blood were the lowest among newborns with smoking mothers (mean=15.04%; 95% CI, 8.4, 21.7) when compared to babies of mothers who were second-hand smokers (21.1%; 95% CI, 16.6, 25.5) and non-smokers (mean=29.2%; 95% CI, 20.1, 38.1). Global DNA methylation was inversely correlated with serum PFOA (r= -0.72, p < 0.01) but not PFOS levels. Serum Y chromosome analyses did not detect maternal DNA cross-contamination. This study supports the use of global DNA methylation status as a biomarker of in utero exposure to cigarette smoke and PFCs.
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