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Morales E, Prieto-Sánchez MT, Mendiola J, Cutillas-Tolín A, Adoamnei E, Valera-Gran D, Martínez-Graciá C, Santaella-Pascual M, Suárez-Martinez C, Vioque J, Castaños MJ, Del Castillo E, García-Marcos L. Maternal non-compliance with recommended folic acid supplement use alters global DNA methylation in cord blood of newborns: A cohort study. Clin Nutr 2024; 43:1191-1198. [PMID: 38631086 DOI: 10.1016/j.clnu.2024.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND & AIMS Prenatal folate exposure may alter epigenetic marks in the offspring. We aimed to evaluate associations between prenatal exposure to folic acid (FA) in preconception and in utero with cord blood DNA methylation in long interspersed nuclear element 1 (LINE-1) and Alu short interspersed nuclear elements (SINEs) as markers of global DNA methylation levels. METHODS Data come from 325 mother-child pairs participating in the Nutrition in Early Life and Asthma (NELA) birth cohort (2015-2018). Pregnant women were asked about supplement use, including brand name and dose, one month before pregnancy (preconception) and through the trimesters of pregnancy. Maternal dietary folate intake was assessed using a validated food frequency questionnaire with additional questions for FA supplement use. Folate serum levels were measured in mothers at 24 weeks of gestation and in cord blood of newborns. DNA methylation was quantitatively assessed by bisulfite pyrosequencing on 5 LINE-1 and 3 Alu different elements. Associations were estimated using multivariable linear regression models. RESULTS A reduction in methylation levels of LINE-1 in newborns was associated with the use of FA supplements below the recommended doses (<400 ug/day) during preconception (-0.50; 95% CI: -0.91, -0.09; P = 0.016), and from preconception up to 12 weeks of gestation (-0.48; 95% CI: -0.88, -0.08; P = 0.018). Maternal use of FA supplements above the tolerable upper intake level of 1000 ug/day from preconception until 12 weeks of gestation was also related to lower methylation in LINE-1 at birth (-0.77; 95% CI: -1.52, -0.02; P = 0.044). Neither FA supplement use after 12 weeks of gestation nor maternal total folate intake (diet plus supplements) were associated with global DNA methylation levels at birth. CONCLUSIONS Maternal non-compliance with the use of FA supplement recommendations from preconception up to 12 weeks of gestation reduces offspring global DNA methylation levels at birth.
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Affiliation(s)
- Eva Morales
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, Faculty of Medicine, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain.
| | - María Teresa Prieto-Sánchez
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain; Materno-Fetal Medicine Unit, Obstetrics and Gynaecology Service, "Virgen de la Arrixaca" University Clinical Hospital, University of Murcia, Murcia, Spain
| | - Jaime Mendiola
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, Faculty of Medicine, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
| | - Ana Cutillas-Tolín
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, Faculty of Medicine, University of Murcia, Murcia, Spain; Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain
| | - Evdochia Adoamnei
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain; Department of Nursing, University of Murcia School of Nursing, Murcia, Spain
| | - Desirée Valera-Gran
- Department of Surgery and Pathology, Miguel Hernandez University, 03550 Alicante, Spain; Grupo de Investigación en Terapia Ocupacional (InTeO), Miguel Hernandez University, 03550 Alicante, Spain; Health and Biomedical Research Institute of Alicante, University Miguel Hernandez (ISABIAL-UMH), Alicante, Spain
| | - Carmen Martínez-Graciá
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain; Department of Food Science and Technology, Faculty of Veterinary, University of Murcia, Murcia, Spain
| | - Marina Santaella-Pascual
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain; Department of Food Science and Technology, Faculty of Veterinary, University of Murcia, Murcia, Spain
| | - Clara Suárez-Martinez
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain; Department of Food Science and Technology, Faculty of Veterinary, University of Murcia, Murcia, Spain
| | - Jesús Vioque
- Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Madrid, Spain; Health and Biomedical Research Institute of Alicante, University Miguel Hernandez (ISABIAL-UMH), Alicante, Spain
| | - María Jesús Castaños
- Obstetrics & Gynecology Service, Virgen de la Arrixaca University Clinical Hospital, University of Murcia, Murcia, Spain
| | - Eva Del Castillo
- Obstetrics & Gynecology Service, Virgen de la Arrixaca University Clinical Hospital, University of Murcia, Murcia, Spain
| | - Luis García-Marcos
- Biomedical Research Institute of Murcia (IMIB-Arrixaca), Murcia, Spain; Paediatric Allergy and Pulmonology Units, Virgen de la Arrixaca University Children's Hospital, University of Murcia, Murcia, Spain; ARADyAL Allergy Network, Madrid, Spain
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Krzyzewska IM, Lauffer P, Mul AN, Laan LVD, Yim AYFL, Cobben JM, Niklinski J, Chomczyk MA, Smigiel R, Mannens MMAM, Henneman P. Expression Quantitative Trait Methylation Analysis Identifies Whole Blood Molecular Footprint in Fetal Alcohol Spectrum Disorder (FASD). Int J Mol Sci 2023; 24:ijms24076601. [PMID: 37047575 PMCID: PMC10095438 DOI: 10.3390/ijms24076601] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/05/2023] Open
Abstract
Fetal alcohol spectrum disorder (FASD) encompasses neurodevelopmental disabilities and physical birth defects associated with prenatal alcohol exposure. Previously, we attempted to identify epigenetic biomarkers for FASD by investigating the genome-wide DNA methylation (DNAm) profiles of individuals with FASD compared to healthy controls. In this study, we generated additional gene expression profiles in a subset of our previous FASD cohort, encompassing the most severely affected individuals, to examine the functional integrative effects of altered DNAm status on gene expression. We identified six differentially methylated regions (annotated to the SEC61G, REEP3, ZNF577, HNRNPF, MSC, and SDHAF1 genes) associated with changes in gene expression (p-value < 0.05). To the best of our knowledge, this study is the first to assess whole blood gene expression and DNAm-gene expression associations in FASD. Our results present novel insights into the molecular footprint of FASD in whole blood and opens opportunities for future research into multi-omics biomarkers for the diagnosis of FASD.
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Affiliation(s)
- Izabela M. Krzyzewska
- Genome Diagnostics Laboratory, Department of Human Genetics, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Peter Lauffer
- Department of Clinical Genetics, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Adri N. Mul
- Genome Diagnostics Laboratory, Department of Human Genetics, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Liselot van der Laan
- Genome Diagnostics Laboratory, Department of Human Genetics, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Andrew Y. F. Li Yim
- Genome Diagnostics Laboratory, Department of Human Genetics, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Jan Maarten Cobben
- Department of Pediatric Endocrinology and Faculty of Medicine, Northwest Thames Regional Genetics NHS, Imperial College, London SW7 2BX, UK
| | - Jacek Niklinski
- Department of Molecular Biology, Medical University of Bialystok, Jana Kilińskiego 1, 15-089 Białystok, Poland
| | - Monika A. Chomczyk
- Department of Molecular Biology, Medical University of Bialystok, Jana Kilińskiego 1, 15-089 Białystok, Poland
| | - Robert Smigiel
- Department of Genetics, Medical University of Wroclaw, Wybrzeże Ludwika Pasteura 1, 50-367 Wrocław, Poland
| | - Marcel M. A. M. Mannens
- Genome Diagnostics Laboratory, Department of Human Genetics, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
| | - Peter Henneman
- Genome Diagnostics Laboratory, Department of Human Genetics, Amsterdam University Medical Centers, University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
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Nickels EM, Li S, Morimoto L, Kang AY, de Smith AJ, Metayer C, Wiemels JL. Periconceptional folate intake influences DNA methylation at birth based on dietary source in an analysis of pediatric acute lymphoblastic leukemia cases and controls. Am J Clin Nutr 2022; 116:1553-1564. [PMID: 36178055 PMCID: PMC9761733 DOI: 10.1093/ajcn/nqac283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 09/28/2022] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Periconceptional folate intake is associated with the establishment of DNA methylation in offspring; however, variations in this relation by food sources compared with folic acid supplements are not described. Also, maternal folate intake is associated with decreased risk of pediatric acute lymphoblastic leukemia (ALL), but the mechanism is not known. OBJECTIVES We evaluated the relation between periconceptional folate intake by source and DNA methylation at birth in a cohort of pediatric ALL cases and controls in an epigenome-wide association study. METHODS Genome-wide DNA methylation status obtained from archived neonatal blood spots from pediatric ALL cases (n = 189) and controls (n = 205) in the California Childhood Leukemia Study (CCLS) from 1995-2008 was compared with periconceptional folate from total, food, and supplemental sources using multivariable linear regression. Further stratification was performed by income, education, ethnicity, and total folate intake. We evaluated variable DNA methylation response to periconceptional folate by ALL case status through an interaction term. RESULTS Two significant differentially methylated probes (DMPs) were associated with food and supplemental periconceptional folate intake in all subjects (n = 394). The top differentially methylated region at the promoter region of DUSP22(dual specificity phosphatase 22) demonstrated DNA hypermethylation in ALL cases but not in controls in response to total and food folate intake. We further identified 8 interaction term DMPs with variable DNA methylation response to folate intake by ALL case status. Further stratification of the cohort by education and ethnicity revealed a substantially higher number of DMPs associated with supplemental folic acid intake in Hispanic subjects with lower income and educational level. CONCLUSIONS We identified modest associations between periconceptional folate intake and DNA methylation differing by source, including variation by ALL case status. Hispanic subjects of lower income and education appear uniquely responsive to periconceptional folate supplementation.
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Affiliation(s)
- Eric M Nickels
- Children's Hospital Los Angeles, Center for Blood Disease Institute, Los Angeles, CA, USA
- University of Southern California Keck School of Medicine, Center for Genetic Epidemiology, Los Angeles, CA, USA
| | - Shaobo Li
- University of Southern California Keck School of Medicine, Center for Genetic Epidemiology, Los Angeles, CA, USA
| | - Libby Morimoto
- School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Alice Y Kang
- School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Adam J de Smith
- University of Southern California Keck School of Medicine, Center for Genetic Epidemiology, Los Angeles, CA, USA
| | - Catherine Metayer
- School of Public Health, University of California, Berkeley, Berkeley, CA, USA
| | - Joseph L Wiemels
- University of Southern California Keck School of Medicine, Center for Genetic Epidemiology, Los Angeles, CA, USA
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