Epigenome-Wide Association Study of Fasting Blood Lipids in the Genetics of Lipid-Lowering Drugs and Diet Network Study

BACKGROUND—Genetic research regarding blood lipids has largely focused on DNA sequence variation; few studies have explored epigenetic effects. Genome-wide surveys of DNA methylation may uncover epigenetic factors influencing lipid metabolism. METHODS AND RESULTS—To identify whether differential met...

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Veröffentlicht in:Circulation (New York, N.Y.) N.Y.), 2014-08, Vol.130 (7), p.565-572
Hauptverfasser: Irvin, Marguerite R, Zhi, Degui, Joehanes, Roby, Mendelson, Michael, Aslibekyan, Stella, Claas, Steven A, Thibeault, Krista S, Patel, Nikita, Day, Kenneth, Jones, Lindsay Waite, Liang, Liming, Chen, Brian H, Yao, Chen, Tiwari, Hemant K, Ordovas, Jose M, Levy, Daniel, Absher, Devin, Arnett, Donna K
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container_end_page 572
container_issue 7
container_start_page 565
container_title Circulation (New York, N.Y.)
container_volume 130
creator Irvin, Marguerite R
Zhi, Degui
Joehanes, Roby
Mendelson, Michael
Aslibekyan, Stella
Claas, Steven A
Thibeault, Krista S
Patel, Nikita
Day, Kenneth
Jones, Lindsay Waite
Liang, Liming
Chen, Brian H
Yao, Chen
Tiwari, Hemant K
Ordovas, Jose M
Levy, Daniel
Absher, Devin
Arnett, Donna K
description BACKGROUND—Genetic research regarding blood lipids has largely focused on DNA sequence variation; few studies have explored epigenetic effects. Genome-wide surveys of DNA methylation may uncover epigenetic factors influencing lipid metabolism. METHODS AND RESULTS—To identify whether differential methylation of cytosine-(phosphate)-guanine dinucleotides (CpGs) correlated with lipid phenotypes, we isolated DNA from CD4+ T cells and quantified the proportion of sample methylation at >450 000 CpGs by using the Illumina Infinium HumanMethylation450 Beadchip in 991 participants of the Genetics of Lipid Lowering Drugs and Diet Network. We modeled the percentage of methylation at individual CpGs as a function of fasting very-low-density lipoprotein cholesterol and triglycerides (TGs) by using mixed linear regression adjusted for age, sex, study site, cell purity, and family structure. Four CpGs (cg00574958, cg17058475, cg01082498, and cg09737197) in intron 1 of carnitine palmitoyltransferase 1A (CPT1A) were strongly associated with very-low low-density lipoprotein cholesterol (P=1.8×10 to 1.6×10) and TG (P=1.6×10 to 1.5×10). Array findings were validated by bisulfite sequencing. We performed quantitative polymerase chain reaction experiments demonstrating that methylation of the top CpG (cg00574958) was correlated with CPT1A expression. The association of cg00574958 with TG and CPT1A expression were replicated in the Framingham Heart Study (P=4.1×10 and 3.1×10, respectively). DNA methylation at CPT1A cg00574958 explained 11.6% and 5.5% of the variation in TG in the discovery and replication cohorts, respectively. CONCLUSIONS—This genome-wide epigenomic study identified CPT1A methylation as strongly and robustly associated with fasting very-low low-density lipoprotein cholesterol and TG. Identifying novel epigenetic contributions to lipid traits may inform future efforts to identify new treatment targets and biomarkers of disease risk.
doi_str_mv 10.1161/CIRCULATIONAHA.114.009158
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Genome-wide surveys of DNA methylation may uncover epigenetic factors influencing lipid metabolism. METHODS AND RESULTS—To identify whether differential methylation of cytosine-(phosphate)-guanine dinucleotides (CpGs) correlated with lipid phenotypes, we isolated DNA from CD4+ T cells and quantified the proportion of sample methylation at &gt;450 000 CpGs by using the Illumina Infinium HumanMethylation450 Beadchip in 991 participants of the Genetics of Lipid Lowering Drugs and Diet Network. We modeled the percentage of methylation at individual CpGs as a function of fasting very-low-density lipoprotein cholesterol and triglycerides (TGs) by using mixed linear regression adjusted for age, sex, study site, cell purity, and family structure. Four CpGs (cg00574958, cg17058475, cg01082498, and cg09737197) in intron 1 of carnitine palmitoyltransferase 1A (CPT1A) were strongly associated with very-low low-density lipoprotein cholesterol (P=1.8×10 to 1.6×10) and TG (P=1.6×10 to 1.5×10). Array findings were validated by bisulfite sequencing. We performed quantitative polymerase chain reaction experiments demonstrating that methylation of the top CpG (cg00574958) was correlated with CPT1A expression. The association of cg00574958 with TG and CPT1A expression were replicated in the Framingham Heart Study (P=4.1×10 and 3.1×10, respectively). DNA methylation at CPT1A cg00574958 explained 11.6% and 5.5% of the variation in TG in the discovery and replication cohorts, respectively. CONCLUSIONS—This genome-wide epigenomic study identified CPT1A methylation as strongly and robustly associated with fasting very-low low-density lipoprotein cholesterol and TG. Identifying novel epigenetic contributions to lipid traits may inform future efforts to identify new treatment targets and biomarkers of disease risk.</description><identifier>ISSN: 0009-7322</identifier><identifier>EISSN: 1524-4539</identifier><identifier>DOI: 10.1161/CIRCULATIONAHA.114.009158</identifier><identifier>PMID: 24920721</identifier><identifier>CODEN: CIRCAZ</identifier><language>eng</language><publisher>Hagerstown, MD: by the American College of Cardiology Foundation and the American Heart Association, Inc</publisher><subject>Adult ; Anticholesteremic Agents - pharmacology ; Anticholesteremic Agents - therapeutic use ; Biological and medical sciences ; Blood and lymphatic vessels ; Cardiology. Vascular system ; Carnitine O-Palmitoyltransferase - blood ; Carnitine O-Palmitoyltransferase - genetics ; Cohort Studies ; Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous ; Disorders of blood lipids. Hyperlipoproteinemia ; Epigenomics - methods ; Fasting - blood ; Female ; Genome-Wide Association Study - methods ; Humans ; Lipoproteins, VLDL - blood ; Lipoproteins, VLDL - genetics ; Male ; Medical sciences ; Metabolic diseases ; Middle Aged ; Triglycerides - blood ; Triglycerides - genetics</subject><ispartof>Circulation (New York, N.Y.), 2014-08, Vol.130 (7), p.565-572</ispartof><rights>2014 by the American College of Cardiology Foundation and the American Heart Association, Inc.</rights><rights>2015 INIST-CNRS</rights><rights>2014 American Heart Association, Inc.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c6298-30312bd08ddd0757e112735c43ba5156aa35e5bb7da94477919d99b687c4d05d3</citedby><cites>FETCH-LOGICAL-c6298-30312bd08ddd0757e112735c43ba5156aa35e5bb7da94477919d99b687c4d05d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,315,782,786,887,3691,27933,27934</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=28733097$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24920721$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Irvin, Marguerite R</creatorcontrib><creatorcontrib>Zhi, Degui</creatorcontrib><creatorcontrib>Joehanes, Roby</creatorcontrib><creatorcontrib>Mendelson, Michael</creatorcontrib><creatorcontrib>Aslibekyan, Stella</creatorcontrib><creatorcontrib>Claas, Steven A</creatorcontrib><creatorcontrib>Thibeault, Krista S</creatorcontrib><creatorcontrib>Patel, Nikita</creatorcontrib><creatorcontrib>Day, Kenneth</creatorcontrib><creatorcontrib>Jones, Lindsay Waite</creatorcontrib><creatorcontrib>Liang, Liming</creatorcontrib><creatorcontrib>Chen, Brian H</creatorcontrib><creatorcontrib>Yao, Chen</creatorcontrib><creatorcontrib>Tiwari, Hemant K</creatorcontrib><creatorcontrib>Ordovas, Jose M</creatorcontrib><creatorcontrib>Levy, Daniel</creatorcontrib><creatorcontrib>Absher, Devin</creatorcontrib><creatorcontrib>Arnett, Donna K</creatorcontrib><title>Epigenome-Wide Association Study of Fasting Blood Lipids in the Genetics of Lipid-Lowering Drugs and Diet Network Study</title><title>Circulation (New York, N.Y.)</title><addtitle>Circulation</addtitle><description>BACKGROUND—Genetic research regarding blood lipids has largely focused on DNA sequence variation; few studies have explored epigenetic effects. Genome-wide surveys of DNA methylation may uncover epigenetic factors influencing lipid metabolism. METHODS AND RESULTS—To identify whether differential methylation of cytosine-(phosphate)-guanine dinucleotides (CpGs) correlated with lipid phenotypes, we isolated DNA from CD4+ T cells and quantified the proportion of sample methylation at &gt;450 000 CpGs by using the Illumina Infinium HumanMethylation450 Beadchip in 991 participants of the Genetics of Lipid Lowering Drugs and Diet Network. We modeled the percentage of methylation at individual CpGs as a function of fasting very-low-density lipoprotein cholesterol and triglycerides (TGs) by using mixed linear regression adjusted for age, sex, study site, cell purity, and family structure. Four CpGs (cg00574958, cg17058475, cg01082498, and cg09737197) in intron 1 of carnitine palmitoyltransferase 1A (CPT1A) were strongly associated with very-low low-density lipoprotein cholesterol (P=1.8×10 to 1.6×10) and TG (P=1.6×10 to 1.5×10). Array findings were validated by bisulfite sequencing. We performed quantitative polymerase chain reaction experiments demonstrating that methylation of the top CpG (cg00574958) was correlated with CPT1A expression. The association of cg00574958 with TG and CPT1A expression were replicated in the Framingham Heart Study (P=4.1×10 and 3.1×10, respectively). DNA methylation at CPT1A cg00574958 explained 11.6% and 5.5% of the variation in TG in the discovery and replication cohorts, respectively. CONCLUSIONS—This genome-wide epigenomic study identified CPT1A methylation as strongly and robustly associated with fasting very-low low-density lipoprotein cholesterol and TG. Identifying novel epigenetic contributions to lipid traits may inform future efforts to identify new treatment targets and biomarkers of disease risk.</description><subject>Adult</subject><subject>Anticholesteremic Agents - pharmacology</subject><subject>Anticholesteremic Agents - therapeutic use</subject><subject>Biological and medical sciences</subject><subject>Blood and lymphatic vessels</subject><subject>Cardiology. Vascular system</subject><subject>Carnitine O-Palmitoyltransferase - blood</subject><subject>Carnitine O-Palmitoyltransferase - genetics</subject><subject>Cohort Studies</subject><subject>Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous</subject><subject>Disorders of blood lipids. Hyperlipoproteinemia</subject><subject>Epigenomics - methods</subject><subject>Fasting - blood</subject><subject>Female</subject><subject>Genome-Wide Association Study - methods</subject><subject>Humans</subject><subject>Lipoproteins, VLDL - blood</subject><subject>Lipoproteins, VLDL - genetics</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Metabolic diseases</subject><subject>Middle Aged</subject><subject>Triglycerides - blood</subject><subject>Triglycerides - genetics</subject><issn>0009-7322</issn><issn>1524-4539</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkU1v1DAQhi0EokvhLyBzQOKS4s84PoAUtl8rRa0ErThaTuzdNc3aW9th1X9PliyF3jiN5p1n3hnpBeAdRicYl_jjfPF1ftvUN4vrq_qyHjV2gpDEvHoGZpgTVjBO5XMwQ6NaCErIEXiV0o-xLangL8ERYZIgQfAM7M62bmV92NjiuzMW1imFzunsgoff8mAeYFjCc52y8yv4pQ_BwMZtnUnQeZjXFl5Yb7Pr0p77PSmasLNxj5_GYZWg9gaeOpvhlc27EO8m29fgxVL3yb451GNwe352M78smuuLxbxuiq4ksiooopi0BlXGGCS4sBgTQXnHaKs55qXWlFvetsJoyZgQEksjZVtWomMGcUOPwefJdzu0G2s663PUvdpGt9HxQQXt1NOJd2u1Cj8VI0iWUo4GHw4GMdwPNmW1camzfa-9DUNSmHOKkSQVGlE5oV0MKUW7fDyDkdoHp54GN2pMTcGNu2___fNx809SI_D-AOjU6X4Zte9c-stVglIkxch9mrhd6LON6a4fxjjU2uo-r__jkV8eHrct</recordid><startdate>20140812</startdate><enddate>20140812</enddate><creator>Irvin, Marguerite R</creator><creator>Zhi, Degui</creator><creator>Joehanes, Roby</creator><creator>Mendelson, Michael</creator><creator>Aslibekyan, Stella</creator><creator>Claas, Steven A</creator><creator>Thibeault, Krista S</creator><creator>Patel, Nikita</creator><creator>Day, Kenneth</creator><creator>Jones, Lindsay Waite</creator><creator>Liang, Liming</creator><creator>Chen, Brian H</creator><creator>Yao, Chen</creator><creator>Tiwari, Hemant K</creator><creator>Ordovas, Jose M</creator><creator>Levy, Daniel</creator><creator>Absher, Devin</creator><creator>Arnett, Donna K</creator><general>by the American College of Cardiology Foundation and the American Heart Association, Inc</general><general>Lippincott Williams &amp; Wilkins</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20140812</creationdate><title>Epigenome-Wide Association Study of Fasting Blood Lipids in the Genetics of Lipid-Lowering Drugs and Diet Network Study</title><author>Irvin, Marguerite R ; Zhi, Degui ; Joehanes, Roby ; Mendelson, Michael ; Aslibekyan, Stella ; Claas, Steven A ; Thibeault, Krista S ; Patel, Nikita ; Day, Kenneth ; Jones, Lindsay Waite ; Liang, Liming ; Chen, Brian H ; Yao, Chen ; Tiwari, Hemant K ; Ordovas, Jose M ; Levy, Daniel ; Absher, Devin ; Arnett, Donna K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c6298-30312bd08ddd0757e112735c43ba5156aa35e5bb7da94477919d99b687c4d05d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adult</topic><topic>Anticholesteremic Agents - pharmacology</topic><topic>Anticholesteremic Agents - therapeutic use</topic><topic>Biological and medical sciences</topic><topic>Blood and lymphatic vessels</topic><topic>Cardiology. Vascular system</topic><topic>Carnitine O-Palmitoyltransferase - blood</topic><topic>Carnitine O-Palmitoyltransferase - genetics</topic><topic>Cohort Studies</topic><topic>Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous</topic><topic>Disorders of blood lipids. Hyperlipoproteinemia</topic><topic>Epigenomics - methods</topic><topic>Fasting - blood</topic><topic>Female</topic><topic>Genome-Wide Association Study - methods</topic><topic>Humans</topic><topic>Lipoproteins, VLDL - blood</topic><topic>Lipoproteins, VLDL - genetics</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Metabolic diseases</topic><topic>Middle Aged</topic><topic>Triglycerides - blood</topic><topic>Triglycerides - genetics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Irvin, Marguerite R</creatorcontrib><creatorcontrib>Zhi, Degui</creatorcontrib><creatorcontrib>Joehanes, Roby</creatorcontrib><creatorcontrib>Mendelson, Michael</creatorcontrib><creatorcontrib>Aslibekyan, Stella</creatorcontrib><creatorcontrib>Claas, Steven A</creatorcontrib><creatorcontrib>Thibeault, Krista S</creatorcontrib><creatorcontrib>Patel, Nikita</creatorcontrib><creatorcontrib>Day, Kenneth</creatorcontrib><creatorcontrib>Jones, Lindsay Waite</creatorcontrib><creatorcontrib>Liang, Liming</creatorcontrib><creatorcontrib>Chen, Brian H</creatorcontrib><creatorcontrib>Yao, Chen</creatorcontrib><creatorcontrib>Tiwari, Hemant K</creatorcontrib><creatorcontrib>Ordovas, Jose M</creatorcontrib><creatorcontrib>Levy, Daniel</creatorcontrib><creatorcontrib>Absher, Devin</creatorcontrib><creatorcontrib>Arnett, Donna K</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Circulation (New York, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Irvin, Marguerite R</au><au>Zhi, Degui</au><au>Joehanes, Roby</au><au>Mendelson, Michael</au><au>Aslibekyan, Stella</au><au>Claas, Steven A</au><au>Thibeault, Krista S</au><au>Patel, Nikita</au><au>Day, Kenneth</au><au>Jones, Lindsay Waite</au><au>Liang, Liming</au><au>Chen, Brian H</au><au>Yao, Chen</au><au>Tiwari, Hemant K</au><au>Ordovas, Jose M</au><au>Levy, Daniel</au><au>Absher, Devin</au><au>Arnett, Donna K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Epigenome-Wide Association Study of Fasting Blood Lipids in the Genetics of Lipid-Lowering Drugs and Diet Network Study</atitle><jtitle>Circulation (New York, N.Y.)</jtitle><addtitle>Circulation</addtitle><date>2014-08-12</date><risdate>2014</risdate><volume>130</volume><issue>7</issue><spage>565</spage><epage>572</epage><pages>565-572</pages><issn>0009-7322</issn><eissn>1524-4539</eissn><coden>CIRCAZ</coden><abstract>BACKGROUND—Genetic research regarding blood lipids has largely focused on DNA sequence variation; few studies have explored epigenetic effects. Genome-wide surveys of DNA methylation may uncover epigenetic factors influencing lipid metabolism. METHODS AND RESULTS—To identify whether differential methylation of cytosine-(phosphate)-guanine dinucleotides (CpGs) correlated with lipid phenotypes, we isolated DNA from CD4+ T cells and quantified the proportion of sample methylation at &gt;450 000 CpGs by using the Illumina Infinium HumanMethylation450 Beadchip in 991 participants of the Genetics of Lipid Lowering Drugs and Diet Network. We modeled the percentage of methylation at individual CpGs as a function of fasting very-low-density lipoprotein cholesterol and triglycerides (TGs) by using mixed linear regression adjusted for age, sex, study site, cell purity, and family structure. Four CpGs (cg00574958, cg17058475, cg01082498, and cg09737197) in intron 1 of carnitine palmitoyltransferase 1A (CPT1A) were strongly associated with very-low low-density lipoprotein cholesterol (P=1.8×10 to 1.6×10) and TG (P=1.6×10 to 1.5×10). Array findings were validated by bisulfite sequencing. We performed quantitative polymerase chain reaction experiments demonstrating that methylation of the top CpG (cg00574958) was correlated with CPT1A expression. The association of cg00574958 with TG and CPT1A expression were replicated in the Framingham Heart Study (P=4.1×10 and 3.1×10, respectively). DNA methylation at CPT1A cg00574958 explained 11.6% and 5.5% of the variation in TG in the discovery and replication cohorts, respectively. CONCLUSIONS—This genome-wide epigenomic study identified CPT1A methylation as strongly and robustly associated with fasting very-low low-density lipoprotein cholesterol and TG. Identifying novel epigenetic contributions to lipid traits may inform future efforts to identify new treatment targets and biomarkers of disease risk.</abstract><cop>Hagerstown, MD</cop><pub>by the American College of Cardiology Foundation and the American Heart Association, Inc</pub><pmid>24920721</pmid><doi>10.1161/CIRCULATIONAHA.114.009158</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Anticholesteremic Agents - pharmacology
Anticholesteremic Agents - therapeutic use
Biological and medical sciences
Blood and lymphatic vessels
Cardiology. Vascular system
Carnitine O-Palmitoyltransferase - blood
Carnitine O-Palmitoyltransferase - genetics
Cohort Studies
Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous
Disorders of blood lipids. Hyperlipoproteinemia
Epigenomics - methods
Fasting - blood
Female
Genome-Wide Association Study - methods
Humans
Lipoproteins, VLDL - blood
Lipoproteins, VLDL - genetics
Male
Medical sciences
Metabolic diseases
Middle Aged
Triglycerides - blood
Triglycerides - genetics
title Epigenome-Wide Association Study of Fasting Blood Lipids in the Genetics of Lipid-Lowering Drugs and Diet Network Study
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