Erythrocyte folate concentrations, CpG methylation at genomically imprinted domains, and birth weight in a multiethnic newborn cohort.
dc.contributor.author | Hoyo, Cathrine | |
dc.contributor.author | Daltveit, Anne Kjersti | |
dc.contributor.author | Iversen, Edwin | |
dc.contributor.author | Benjamin-Neelon, Sara E | |
dc.contributor.author | Fuemmeler, Bernard | |
dc.contributor.author | Schildkraut, Joellen | |
dc.contributor.author | Murtha, Amy P | |
dc.contributor.author | Overcash, Francine | |
dc.contributor.author | Vidal, Adriana C | |
dc.contributor.author | Wang, Frances | |
dc.contributor.author | Huang, Zhiqing | |
dc.contributor.author | Kurtzberg, Joanne | |
dc.contributor.author | Seewaldt, Victoria | |
dc.contributor.author | Forman, Michele | |
dc.contributor.author | Jirtle, Randy L | |
dc.contributor.author | Murphy, Susan K | |
dc.date.accessioned | 2022-03-23T19:30:33Z | |
dc.date.available | 2022-03-23T19:30:33Z | |
dc.date.issued | 2014-08 | |
dc.date.updated | 2022-03-23T19:30:32Z | |
dc.description.abstract | Epigenetic mechanisms are proposed to link maternal concentrations of methyl group donor nutrients with the risk of low birth weight. However, empirical data are lacking. We have examined the association between maternal folate and birth weight and assessed the mediating role of DNA methylation at nine differentially methylated regions (DMRs) of genomically imprinted genes in these associations. Compared with newborns of women with folate levels in the lowest quartile, birth weight was higher in newborns of mothers in the second (β = 143.2, se = 63.2, P = 0.02), third (β = 117.3, se = 64.0, P = 0.07), and fourth (β = 133.9, se = 65.2, P = 0.04) quartiles, consistent with a threshold effect. This pattern of association did not vary by race/ethnicity but was more apparent in newborns of non-obese women. DNA methylation at the PLAGL1, SGCE, DLK1/MEG3 and IGF2/H19 DMRs was associated with maternal folate levels and also birth weight, suggestive of threshold effects. MEG3 DMR methylation mediated the association between maternal folate levels and birth weight (P =0.06). While the small sample size and partial scope of examined DMRs limit our conclusions, our data suggest that, with respect to birth weight, no additional benefits may be derived from increased maternal folate concentrations, especially in non-obese women. These data also support epigenetic plasticity as a key mechanistic response to folate availability during early fetal development. | |
dc.identifier | 29332 | |
dc.identifier.issn | 1559-2294 | |
dc.identifier.issn | 1559-2308 | |
dc.identifier.uri | ||
dc.language | eng | |
dc.publisher | Informa UK Limited | |
dc.relation.ispartof | Epigenetics | |
dc.relation.isversionof | 10.4161/epi.29332 | |
dc.subject | Erythrocytes | |
dc.subject | Humans | |
dc.subject | Birth Weight | |
dc.subject | Folic Acid | |
dc.subject | Cohort Studies | |
dc.subject | DNA Methylation | |
dc.subject | Epigenesis, Genetic | |
dc.subject | Genomic Imprinting | |
dc.subject | CpG Islands | |
dc.subject | Pregnancy | |
dc.subject | Adolescent | |
dc.subject | Adult | |
dc.subject | Infant, Newborn | |
dc.subject | Continental Population Groups | |
dc.subject | Ethnic Groups | |
dc.subject | Female | |
dc.subject | Male | |
dc.subject | Young Adult | |
dc.title | Erythrocyte folate concentrations, CpG methylation at genomically imprinted domains, and birth weight in a multiethnic newborn cohort. | |
dc.type | Journal article | |
duke.contributor.orcid | Kurtzberg, Joanne|0000-0002-3370-0703 | |
duke.contributor.orcid | Murphy, Susan K|0000-0001-8298-7272 | |
pubs.begin-page | 1120 | |
pubs.end-page | 1130 | |
pubs.issue | 8 | |
pubs.organisational-group | Duke | |
pubs.organisational-group | Nicholas School of the Environment | |
pubs.organisational-group | Sanford School of Public Policy | |
pubs.organisational-group | School of Medicine | |
pubs.organisational-group | Trinity College of Arts & Sciences | |
pubs.organisational-group | Faculty | |
pubs.organisational-group | Clinical Science Departments | |
pubs.organisational-group | Institutes and Centers | |
pubs.organisational-group | Family Medicine and Community Health | |
pubs.organisational-group | Pathology | |
pubs.organisational-group | Pediatrics | |
pubs.organisational-group | Family Medicine and Community Health, Prevention Research | |
pubs.organisational-group | Pediatrics, Primary Care Pediatrics | |
pubs.organisational-group | Duke Cancer Institute | |
pubs.organisational-group | Statistical Science | |
pubs.organisational-group | Environmental Sciences and Policy | |
pubs.organisational-group | Institutes and Provost's Academic Units | |
pubs.organisational-group | Initiatives | |
pubs.organisational-group | Center for Child and Family Policy | |
pubs.organisational-group | Duke Innovation & Entrepreneurship | |
pubs.organisational-group | Pediatrics, Transplant and Cellular Therapy | |
pubs.publication-status | Published | |
pubs.volume | 9 |
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