@article {8521,
	title = {{Association of dietary folate and vitamin B-12 intake with genome-wide DNA methylation in blood: a large-scale epigenome-wide association analysis in 5841 individuals},
	journal = {Am J Clin Nutr},
	volume = {110},
	year = {2019},
	month = {08},
	pages = {437{\textendash}450},
	abstract = {Folate and vitamin B-12 are essential micronutrients involved in the donation of methyl groups in cellular metabolism. However, associations between intake of these nutrients and genome-wide DNA methylation levels have not been studied comprehensively in humans.\ The aim of this study was to assess whether folate and/or vitamin B-12 intake are asssociated with genome-wide changes in DNA methylation in leukocytes.\ A large-scale epigenome-wide association study of folate and vitamin B-12 intake was performed on DNA from 5841 participants from 10 cohorts using Illumina 450k arrays. Folate and vitamin B-12 intakes were calculated from food-frequency questionnaires (FFQs). Continuous and categorical (low compared with high intake) linear regression mixed models were applied per cohort, controlling for confounders. A meta-analysis was performed to identify significant differentially methylated positions (DMPs) and regions (DMRs), and a pathway analysis was performed on the DMR annotated genes.\ The categorical model resulted in 6 DMPs, which are all negatively associated with folate intake, annotated to FAM64A, WRAP73, FRMD8, CUX1, and LCN8 genes, which have a role in cellular processes including centrosome localization, cell proliferation, and tumorigenesis. Regional analysis showed 74 folate-associated DMRs, of which 73 were negatively associated with folate intake. The most significant folate-associated DMR was a 400-base pair (bp) spanning region annotated to the LGALS3BP gene. In the categorical model, vitamin B-12 intake was associated with 29 DMRs annotated to 48 genes, of which the most significant was a 1100-bp spanning region annotated to the calcium-binding tyrosine phosphorylation-regulated gene (CABYR). Vitamin B-12 intake was not associated with DMPs.\ We identified novel epigenetic loci that are associated with folate and vitamin B-12 intake. Interestingly, we found a negative association between folate and DNA methylation. Replication of these methylation loci is necessary in future studies.},
	author = {Mandaviya, P. R. and Joehanes, R. and Brody, J. and Castillo-Fernandez, J. E. and Dekkers, K. F. and Do, A. N. and Graff, M. and H?nninen, I. K. and Tanaka, T. and de Jonge, E. A. L. and Kiefte-de Jong, J. C. and Absher, D. M. and Aslibekyan, S. and de Rijke, Y. B. and Fornage, M. and Hernandez, D. G. and Hurme, M. A. and Ikram, M. A. and Jacques, P. F. and Justice, A. E. and Kiel, D. P. and Lemaitre, R. N. and Mendelson, M. M. and Mikkil?, V. and Moore, A. Z. and Pallister, T. and Raitakari, O. T. and Schalkwijk, C. G. and Sha, J. and Slagboom, E. P. E. and Smith, C. E. and Stehouwer, C. D. A. and Tsai, P. C. and Uitterlinden, A. G. and van der Kallen, C. J. H. and van Heemst, D. and Arnett, D. K. and Bandinelli, S. and Bell, J. T. and Heijmans, B. T. and Lehtim?ki, T. and Levy, D. and North, K. E. and Sotoodehnia, N. and van Greevenbroek, M. M. J. and van Meurs, J. B. J. and Heil, S. G.}
}
@article {9111,
	title = {{DNA methylation signature of chronic low-grade inflammation and its role in cardio-respiratory diseases},
	journal = {Nat Commun},
	volume = {13},
	year = {2022},
	month = {05},
	pages = {2408},
	abstract = {We performed a multi-ethnic Epigenome Wide Association study on 22,774 individuals to describe the DNA methylation signature of chronic low-grade inflammation as measured by C-Reactive protein (CRP). We find 1,511 independent differentially methylated loci associated with CRP. These CpG sites show correlation structures across chromosomes, and are primarily situated in euchromatin, depleted in CpG islands. These genomic loci are predominantly situated in transcription factor binding sites and genomic enhancer regions. Mendelian randomization analysis suggests altered CpG methylation is a consequence of increased blood CRP levels. Mediation analysis reveals obesity and smoking as important underlying driving factors for changed CpG methylation. Finally, we find that an activated CpG signature significantly increases the risk for cardiometabolic diseases and COPD.},
	author = {Wielscher, M. and Mandaviya, P. R. and Kuehnel, B. and Joehanes, R. and Mustafa, R. and Robinson, O. and Zhang, Y. and Bodinier, B. and Walton, E. and Mishra, P. P. and Schlosser, P. and Wilson, R. and Tsai, P. C. and Palaniswamy, S. and Marioni, R. E. and Fiorito, G. and Cugliari, G. and Karhunen, V. and Ghanbari, M. and Psaty, B. M. and Loh, M. and Bis, J. C. and Lehne, B. and Sotoodehnia, N. and Deary, I. J. and Chadeau-Hyam, M. and Brody, J. A. and Cardona, A. and Selvin, E. and Smith, A. K. and Miller, A. H. and Torres, M. A. and Marouli, E. and G{\`a}o, X. and van Meurs, J. B. J. and Graf-Schindler, J. and Rathmann, W. and Koenig, W. and Peters, A. and Weninger, W. and Farlik, M. and Zhang, T. and Chen, W. and Xia, Y. and Teumer, A. and Nauck, M. and Grabe, H. J. and Doerr, M. and Lehtim{\"a}ki, T. and Guan, W. and Milani, L. and Tanaka, T. and Fisher, K. and Waite, L. L. and Kasela, S. and Vineis, P. and Verweij, N. and van der Harst, P. and Iacoviello, L. and Sacerdote, C. and Panico, S. and Krogh, V. and Tumino, R. and Tzala, E. and Matullo, G. and Hurme, M. A. and Raitakari, O. T. and Colicino, E. and Baccarelli, A. A. and K{\"a}h{\"o}nen, M. and Herzig, K. H. and Li, S. and Conneely, K. N. and Kooner, J. S. and K{\"o}ttgen, A. and Heijmans, B. T. and Deloukas, P. and Relton, C. and Ong, K. K. and Bell, J. T. and Boerwinkle, E. and Elliott, P. and Brenner, H. and Beekman, M. and Levy, D. and Waldenberger, M. and Chambers, J. C. and Dehghan, A. and Jarvelin, M. R.}
}
