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Methylation patterns associated with C-reactive protein in racially and ethnically diverse populations.

TitleMethylation patterns associated with C-reactive protein in racially and ethnically diverse populations.
Publication TypeJournal Article
Year of Publication2024
AuthorsLundin, JI, Peters, U, Hu, Y, Ammous, F, Avery, CL, Benjamin, EJ, Bis, JC, Brody, JA, Carlson, C, Cushman, M, Gignoux, C, Guo, X, Haessler, J, Haiman, C, Joehanes, R, Kasela, S, Kenny, E, Lapalainien, T, Levy, D, Liu, C, Liu, Y, Loos, RJF, Lu, A, Matise, T, North, KE, Park, SL, Ratliff, SM, Reiner, A, Rich, SS, Rotter, JI, Smith, JA, Sotoodehnia, N, Tracy, R, Van den Berg, D, Xu, H, Ye, T, Zhao, W, Raffield, LM, Kooperberg, C
Corporate/Institutional AuthorsPAGE Study,
JournalEpigenetics
Volume19
Issue1
Pagination2333668
Date Published2024 Dec
ISSN1559-2308
KeywordsC-Reactive Protein, CpG Islands, DNA, DNA Methylation, Epigenesis, Genetic, Genome-Wide Association Study, Humans, Inflammation, Intracellular Signaling Peptides and Proteins
Abstract<p>Systemic low-grade inflammation is a feature of chronic disease. C-reactive protein (CRP) is a common biomarker of inflammation and used as an indicator of disease risk; however, the role of inflammation in disease is not completely understood. Methylation is an epigenetic modification in the DNA which plays a pivotal role in gene expression. In this study we evaluated differential DNA methylation patterns associated with blood CRP level to elucidate biological pathways and genetic regulatory mechanisms to improve the understanding of chronic inflammation. The racially and ethnically diverse participants in this study were included as 50% White, 41% Black or African American, 7% Hispanic or Latino/a, and 2% Native Hawaiian, Asian American, American Indian, or Alaska Native (total  = 13,433) individuals. We replicated 113 CpG sites from 87 unique loci, of which five were novel (, , and cg03282312), across a discovery set of 1,150 CpG sites associated with CRP level ( < 1.2E-7). The downstream pathways affected by DNA methylation included the identification of and CpG-gene transcript pairs which contributed to the innate immune response gene enrichment pathway along with , , and . Gene enrichment analysis also identified the nuclear factor-kappaB transcription pathway. Using two-sample Mendelian randomization (MR) we inferred methylation at three CpG sites as causal for CRP levels using both White and Black or African American MR instrument variables. Overall, we identified novel CpG sites and gene transcripts that could be valuable in understanding the specific cellular processes and pathogenic mechanisms involved in inflammation.</p>
DOI10.1080/15592294.2024.2333668
Alternate JournalEpigenetics
PubMed ID38571307
PubMed Central IDPMC10996836
Grant ListU01 HL120393 / HL / NHLBI NIH HHS / United States
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R01 HL103612 / HL / NHLBI NIH HHS / United States
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HHSN268201800010I / HB / NHLBI NIH HHS / United States
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R01 HL092111 / HL / NHLBI NIH HHS / United States
ePub date: 
24/04