@article {7583, title = {DNA Methylation Analysis Identifies Loci for Blood Pressure Regulation.}, journal = {Am J Hum Genet}, volume = {101}, year = {2017}, month = {2017 Dec 07}, pages = {888-902}, abstract = {

Genome-wide association studies have identified hundreds of genetic variants associated with blood pressure (BP), but sequence variation accounts for a small fraction of the phenotypic variance. Epigenetic changes may alter the expression of genes involved in BP regulation and explain part of the missing heritability. We therefore conducted a two-stage meta-analysis of the cross-sectional associations of systolic and diastolic BP with blood-derived genome-wide DNA methylation measured on the Infinium HumanMethylation450 BeadChip in 17,010 individuals of European, African American, and Hispanic ancestry. Of 31 discovery-stage cytosine-phosphate-guanine (CpG) dinucleotides, 13 replicated after Bonferroni correction (discovery: N = 9,828, p < 1.0~{\texttimes} 10-7; replication: N = 7,182, p~<~1.6~{\texttimes} 10-3). The replicated methylation sites are heritable (h2 > 30\%) and independent of known BP genetic variants, explaining an additional 1.4\% and 2.0\% of the interindividual variation in systolic and diastolic BP, respectively. Bidirectional Mendelian randomization among up to 4,513 individuals of European ancestry from 4 cohorts suggested that methylation at cg08035323 (TAF1B-YWHAQ) influences BP, while BP influences methylation at cg00533891 (ZMIZ1), cg00574958 (CPT1A), and cg02711608 (SLC1A5). Gene expression analyses further identified six genes (TSPAN2, SLC7A11, UNC93B1, CPT1A, PTMS, and LPCAT3) with evidence of triangular associations between methylation, gene expression, and BP. Additional integrative Mendelian randomization analyses of gene expression and DNA methylation suggested that the expression of TSPAN2 is a putative mediator of association between DNA methylation at cg23999170 and BP. These findings suggest that heritable DNA methylation plays a role in regulating BP independently of previously known genetic variants.

}, keywords = {Aged, Blood Pressure, CpG Islands, Cross-Sectional Studies, DNA Methylation, Epigenesis, Genetic, Genetic Variation, Genome-Wide Association Study, Humans, Mendelian Randomization Analysis, Middle Aged, Nerve Tissue Proteins, Quantitative Trait Loci, Tetraspanins}, issn = {1537-6605}, doi = {10.1016/j.ajhg.2017.09.028}, author = {Richard, Melissa A and Huan, Tianxiao and Ligthart, Symen and Gondalia, Rahul and Jhun, Min A and Brody, Jennifer A and Irvin, Marguerite R and Marioni, Riccardo and Shen, Jincheng and Tsai, Pei-Chien and Montasser, May E and Jia, Yucheng and Syme, Catriona and Salfati, Elias L and Boerwinkle, Eric and Guan, Weihua and Mosley, Thomas H and Bressler, Jan and Morrison, Alanna C and Liu, Chunyu and Mendelson, Michael M and Uitterlinden, Andr{\'e} G and van Meurs, Joyce B and Franco, Oscar H and Zhang, Guosheng and Li, Yun and Stewart, James D and Bis, Joshua C and Psaty, Bruce M and Chen, Yii-Der Ida and Kardia, Sharon L R and Zhao, Wei and Turner, Stephen T and Absher, Devin and Aslibekyan, Stella and Starr, John M and McRae, Allan F and Hou, Lifang and Just, Allan C and Schwartz, Joel D and Vokonas, Pantel S and Menni, Cristina and Spector, Tim D and Shuldiner, Alan and Damcott, Coleen M and Rotter, Jerome I and Palmas, Walter and Liu, Yongmei and Paus, Tom{\'a}{\v s} and Horvath, Steve and O{\textquoteright}Connell, Jeffrey R and Guo, Xiuqing and Pausova, Zdenka and Assimes, Themistocles L and Sotoodehnia, Nona and Smith, Jennifer A and Arnett, Donna K and Deary, Ian J and Baccarelli, Andrea A and Bell, Jordana T and Whitsel, Eric and Dehghan, Abbas and Levy, Daniel and Fornage, Myriam} } @article {7579, title = {Genetic loci associated with heart rate variability and their effects on cardiac disease risk.}, journal = {Nat Commun}, volume = {8}, year = {2017}, month = {2017 Jun 14}, pages = {15805}, abstract = {

Reduced cardiac vagal control reflected in low heart rate variability (HRV) is associated with greater risks for cardiac morbidity and mortality. In two-stage meta-analyses of genome-wide association studies for three HRV traits in up to 53,174 individuals of European ancestry, we detect 17 genome-wide significant SNPs in eight loci. HRV SNPs tag non-synonymous SNPs (in NDUFA11 and KIAA1755), expression quantitative trait loci (eQTLs) (influencing GNG11, RGS6 and NEO1), or are located in genes preferentially expressed in the sinoatrial node (GNG11, RGS6 and HCN4). Genetic risk scores account for 0.9 to 2.6\% of the HRV variance. Significant genetic correlation is found for HRV with heart rate (-0.74}, issn = {2041-1723}, doi = {10.1038/ncomms15805}, author = {Nolte, Ilja M and Munoz, M Loretto and Tragante, Vinicius and Amare, Azmeraw T and Jansen, Rick and Vaez, Ahmad and von der Heyde, Benedikt and Avery, Christy L and Bis, Joshua C and Dierckx, Bram and van Dongen, Jenny and Gogarten, Stephanie M and Goyette, Philippe and Hernesniemi, Jussi and Huikari, Ville and Hwang, Shih-Jen and Jaju, Deepali and Kerr, Kathleen F and Kluttig, Alexander and Krijthe, Bouwe P and Kumar, Jitender and van der Laan, Sander W and Lyytik{\"a}inen, Leo-Pekka and Maihofer, Adam X and Minassian, Arpi and van der Most, Peter J and M{\"u}ller-Nurasyid, Martina and Nivard, Michel and Salvi, Erika and Stewart, James D and Thayer, Julian F and Verweij, Niek and Wong, Andrew and Zabaneh, Delilah and Zafarmand, Mohammad H and Abdellaoui, Abdel and Albarwani, Sulayma and Albert, Christine and Alonso, Alvaro and Ashar, Foram and Auvinen, Juha and Axelsson, Tomas and Baker, Dewleen G and de Bakker, Paul I W and Barcella, Matteo and Bayoumi, Riad and Bieringa, Rob J and Boomsma, Dorret and Boucher, Gabrielle and Britton, Annie R and Christophersen, Ingrid and Dietrich, Andrea and Ehret, George B and Ellinor, Patrick T and Eskola, Markku and Felix, Janine F and Floras, John S and Franco, Oscar H and Friberg, Peter and Gademan, Maaike G J and Geyer, Mark A and Giedraitis, Vilmantas and Hartman, Catharina A and Hemerich, Daiane and Hofman, Albert and Hottenga, Jouke-Jan and Huikuri, Heikki and Hutri-K{\"a}h{\"o}nen, Nina and Jouven, Xavier and Junttila, Juhani and Juonala, Markus and Kiviniemi, Antti M and Kors, Jan A and Kumari, Meena and Kuznetsova, Tatiana and Laurie, Cathy C and Lefrandt, Joop D and Li, Yong and Li, Yun and Liao, Duanping and Limacher, Marian C and Lin, Henry J and Lindgren, Cecilia M and Lubitz, Steven A and Mahajan, Anubha and McKnight, Barbara and Zu Schwabedissen, Henriette Meyer and Milaneschi, Yuri and Mononen, Nina and Morris, Andrew P and Nalls, Mike A and Navis, Gerjan and Neijts, Melanie and Nikus, Kjell and North, Kari E and O{\textquoteright}Connor, Daniel T and Ormel, Johan and Perz, Siegfried and Peters, Annette and Psaty, Bruce M and Raitakari, Olli T and Risbrough, Victoria B and Sinner, Moritz F and Siscovick, David and Smit, Johannes H and Smith, Nicholas L and Soliman, Elsayed Z and Sotoodehnia, Nona and Staessen, Jan A and Stein, Phyllis K and Stilp, Adrienne M and Stolarz-Skrzypek, Katarzyna and Strauch, Konstantin and Sundstr{\"o}m, Johan and Swenne, Cees A and Syv{\"a}nen, Ann-Christine and Tardif, Jean-Claude and Taylor, Kent D and Teumer, Alexander and Thornton, Timothy A and Tinker, Lesley E and Uitterlinden, Andr{\'e} G and van Setten, Jessica and Voss, Andreas and Waldenberger, Melanie and Wilhelmsen, Kirk C and Willemsen, Gonneke and Wong, Quenna and Zhang, Zhu-Ming and Zonderman, Alan B and Cusi, Daniele and Evans, Michele K and Greiser, Halina K and van der Harst, Pim and Hassan, Mohammad and Ingelsson, Erik and Jarvelin, Marjo-Riitta and K{\"a}{\"a}b, Stefan and K{\"a}h{\"o}nen, Mika and Kivimaki, Mika and Kooperberg, Charles and Kuh, Diana and Lehtim{\"a}ki, Terho and Lind, Lars and Nievergelt, Caroline M and O{\textquoteright}Donnell, Chris J and Oldehinkel, Albertine J and Penninx, Brenda and Reiner, Alexander P and Riese, Harri{\"e}tte and van Roon, Arie M and Rioux, John D and Rotter, Jerome I and Sofer, Tamar and Stricker, Bruno H and Tiemeier, Henning and Vrijkotte, Tanja G M and Asselbergs, Folkert W and Brundel, Bianca J J M and Heckbert, Susan R and Whitsel, Eric A and den Hoed, Marcel and Snieder, Harold and de Geus, Eco J C} } @article {7353, title = {A genome-wide interaction analysis of tricyclic/tetracyclic antidepressants and RR and QT intervals: a pharmacogenomics study from the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) consortium.}, journal = {J Med Genet}, volume = {54}, year = {2017}, month = {2017 May}, pages = {313-323}, abstract = {

BACKGROUND: Increased heart rate and a prolonged QT interval are important risk factors for cardiovascular morbidity and mortality, and can be influenced by the use of various medications, including tricyclic/tetracyclic antidepressants (TCAs). We aim to identify genetic loci that modify the association between TCA use and RR and QT intervals.

METHODS AND RESULTS: We conducted race/ethnic-specific genome-wide interaction analyses (with HapMap phase II imputed reference panel imputation) of TCAs and resting RR and QT intervals in cohorts of European (n=45 706; n=1417 TCA users), African (n=10 235; n=296 TCA users) and Hispanic/Latino (n=13 808; n=147 TCA users) ancestry, adjusted for clinical covariates. Among the populations of European ancestry, two genome-wide significant loci were identified for RR interval: rs6737205 in BRE (β=56.3, pinteraction=3.9e(-9)) and rs9830388 in UBE2E2 (β=25.2, pinteraction=1.7e(-8)). In Hispanic/Latino cohorts, rs2291477 in TGFBR3 significantly modified the association between TCAs and QT intervals (β=9.3, pinteraction=2.55e(-8)). In the meta-analyses of the other ethnicities, these loci either were excluded from the meta-analyses (as part of quality control), or their effects did not reach the level of nominal statistical significance (pinteraction>0.05). No new variants were identified in these ethnicities. No additional loci were identified after inverse-variance-weighted meta-analysis of the three ancestries.

CONCLUSIONS: Among Europeans, TCA interactions with variants in BRE and UBE2E2 were identified in relation to RR intervals. Among Hispanic/Latinos, variants in TGFBR3 modified the relation between TCAs and QT intervals. Future studies are required to confirm our results.

}, issn = {1468-6244}, doi = {10.1136/jmedgenet-2016-104112}, author = {Noordam, Raymond and Sitlani, Colleen M and Avery, Christy L and Stewart, James D and Gogarten, Stephanie M and Wiggins, Kerri L and Trompet, Stella and Warren, Helen R and Sun, Fangui and Evans, Daniel S and Li, Xiaohui and Li, Jin and Smith, Albert V and Bis, Joshua C and Brody, Jennifer A and Busch, Evan L and Caulfield, Mark J and Chen, Yii-der I and Cummings, Steven R and Cupples, L Adrienne and Duan, Qing and Franco, Oscar H and M{\'e}ndez-Gir{\'a}ldez, R{\'a}ul and Harris, Tamara B and Heckbert, Susan R and van Heemst, Diana and Hofman, Albert and Floyd, James S and Kors, Jan A and Launer, Lenore J and Li, Yun and Li-Gao, Ruifang and Lange, Leslie A and Lin, Henry J and de Mutsert, Ren{\'e}e and Napier, Melanie D and Newton-Cheh, Christopher and Poulter, Neil and Reiner, Alexander P and Rice, Kenneth M and Roach, Jeffrey and Rodriguez, Carlos J and Rosendaal, Frits R and Sattar, Naveed and Sever, Peter and Seyerle, Amanda A and Slagboom, P Eline and Soliman, Elsayed Z and Sotoodehnia, Nona and Stott, David J and St{\"u}rmer, Til and Taylor, Kent D and Thornton, Timothy A and Uitterlinden, Andr{\'e} G and Wilhelmsen, Kirk C and Wilson, James G and Gudnason, Vilmundur and Jukema, J Wouter and Laurie, Cathy C and Liu, Yongmei and Mook-Kanamori, Dennis O and Munroe, Patricia B and Rotter, Jerome I and Vasan, Ramachandran S and Psaty, Bruce M and Stricker, Bruno H and Whitsel, Eric A} } @article {7448, title = {PCSK9 Loss-of-Function Variants, Low-Density Lipoprotein Cholesterol, and Risk of Coronary Heart Disease and Stroke: Data From 9 Studies of Blacks and Whites.}, journal = {Circ Cardiovasc Genet}, volume = {10}, year = {2017}, month = {2017 Aug}, pages = {e001632}, abstract = {

BACKGROUND: PCSK9 loss-of-function (LOF) variants allow for the examination of the effects of lifetime reduced low-density lipoprotein cholesterol (LDL-C) on cardiovascular events. We examined the association of PCSK9 LOF variants with LDL-C and incident coronary heart disease and stroke through a meta-analysis of data from 8 observational cohorts and 1 randomized trial of statin therapy.

METHODS AND RESULTS: These 9 studies together included 17 459 blacks with 403 (2.3\%) having at least 1 Y142X or C679X variant and 31 306 whites with 955 (3.1\%) having at least 1 R46L variant. Unadjusted odds ratios for associations between PCSK9 LOF variants and incident coronary heart disease (851 events in blacks and 2662 events in whites) and stroke (523 events in blacks and 1660 events in whites) were calculated using pooled Mantel-Haenszel estimates with continuity correction factors. Pooling results across studies using fixed-effects inverse-variance-weighted models, PCSK9 LOF variants were associated with 35 mg/dL (95\% confidence interval [CI], 32-39) lower LDL-C in blacks and 13 mg/dL (95\% CI, 11-16) lower LDL-C in whites. PCSK9 LOF variants were associated with a pooled odds ratio for coronary heart disease of 0.51 (95\% CI, 0.28-0.92) in blacks and 0.82 (95\% CI, 0.63-1.06) in whites. PCSK9 LOF variants were not associated with incident stroke (odds ratio, 0.84; 95\% CI, 0.48-1.47 in blacks and odds ratio, 1.06; 95\% CI, 0.80-1.41 in whites).

CONCLUSIONS: PCSK9 LOF variants were associated with lower LDL-C and coronary heart disease incidence. PCSK9 LOF variants were not associated with stroke risk.

}, issn = {1942-3268}, doi = {10.1161/CIRCGENETICS.116.001632}, author = {Kent, Shia T and Rosenson, Robert S and Avery, Christy L and Chen, Yii-der I and Correa, Adolfo and Cummings, Steven R and Cupples, L Adrienne and Cushman, Mary and Evans, Daniel S and Gudnason, Vilmundur and Harris, Tamara B and Howard, George and Irvin, Marguerite R and Judd, Suzanne E and Jukema, J Wouter and Lange, Leslie and Levitan, Emily B and Li, Xiaohui and Liu, Yongmei and Post, Wendy S and Postmus, Iris and Psaty, Bruce M and Rotter, Jerome I and Safford, Monika M and Sitlani, Colleen M and Smith, Albert V and Stewart, James D and Trompet, Stella and Sun, Fangui and Vasan, Ramachandran S and Woolley, J Michael and Whitsel, Eric A and Wiggins, Kerri L and Wilson, James G and Muntner, Paul} } @article {7669, title = {Genome-wide association study and meta-analysis identify loci associated with ventricular and supraventricular ectopy.}, journal = {Sci Rep}, volume = {8}, year = {2018}, month = {2018 Apr 04}, pages = {5675}, abstract = {

The genetic basis of supraventricular and ventricular ectopy (SVE, VE) remains largely uncharacterized, despite established genetic mechanisms of arrhythmogenesis. To identify novel genetic variants associated with SVE/VE in ancestrally diverse human populations, we conducted a genome-wide association study of electrocardiographically~identified SVE and VE in five cohorts including approximately 43,000 participants of African, European and Hispanic/Latino ancestry. In thirteen ancestry-stratified subgroups, we tested multivariable-adjusted associations of SVE and VE with single nucleotide polymorphism (SNP) dosage. We combined subgroup-specific association estimates in inverse variance-weighted, fixed-effects and Bayesian meta-analyses. We also combined fixed-effects meta-analytic t-test statistics for SVE and VE in multi-trait SNP association analyses. No loci reached genome-wide significance in trans-ethnic meta-analyses. However, we found genome-wide significant SNPs intronic to an apoptosis-enhancing gene previously associated with QRS interval duration (FAF1; lead SNP rs7545860; effect allele frequency = 0.02; P = 2.0 {\texttimes} 10) in multi-trait analysis among European ancestry participants and near a locus encoding calcium-dependent glycoproteins (DSC3; lead SNP rs8086068; effect allele frequency = 0.17) in meta-analysis of SVE (P = 4.0 {\texttimes} 10) and multi-trait analysis (P = 2.9 {\texttimes} 10) among African ancestry participants. The novel findings suggest several mechanisms by which genetic variation may predispose to ectopy in humans and highlight the potential value of leveraging pleiotropy in future studies of ectopy-related phenotypes.

}, issn = {2045-2322}, doi = {10.1038/s41598-018-23843-z}, author = {Napier, Melanie D and Franceschini, Nora and Gondalia, Rahul and Stewart, James D and M{\'e}ndez-Gir{\'a}ldez, R{\'a}ul and Sitlani, Colleen M and Seyerle, Amanda A and Highland, Heather M and Li, Yun and Wilhelmsen, Kirk C and Yan, Song and Duan, Qing and Roach, Jeffrey and Yao, Jie and Guo, Xiuqing and Taylor, Kent D and Heckbert, Susan R and Rotter, Jerome I and North, Kari E and Reiner, Alexander P and Zhang, Zhu-Ming and Tinker, Lesley F and Liao, Duanping and Laurie, Cathy C and Gogarten, Stephanie M and Lin, Henry J and Brody, Jennifer A and Bartz, Traci M and Psaty, Bruce M and Sotoodehnia, Nona and Soliman, Elsayed Z and Avery, Christy L and Whitsel, Eric A} } @article {8507, title = {Blood Leukocyte DNA Methylation Predicts Risk of Future Myocardial Infarction and Coronary Heart Disease.}, journal = {Circulation}, volume = {140}, year = {2019}, month = {2019 08 20}, pages = {645-657}, abstract = {

BACKGROUND: DNA methylation is implicated in coronary heart disease (CHD), but current evidence is based on small, cross-sectional studies. We examined blood DNA methylation in relation to incident CHD across multiple prospective cohorts.

METHODS: Nine population-based cohorts from the United States and Europe profiled epigenome-wide blood leukocyte DNA methylation using the Illumina Infinium 450k microarray, and prospectively ascertained CHD events including coronary insufficiency/unstable angina, recognized myocardial infarction, coronary revascularization, and coronary death. Cohorts conducted race-specific analyses adjusted for age, sex, smoking, education, body mass index, blood cell type proportions, and technical variables. We conducted fixed-effect meta-analyses across cohorts.

RESULTS: Among 11 461 individuals (mean age 64 years, 67\% women, 35\% African American) free of CHD at baseline, 1895 developed CHD during a mean follow-up of 11.2 years. Methylation levels at 52 CpG (cytosine-phosphate-guanine) sites were associated with incident CHD or myocardial infarction (false discovery rate<0.05). These CpGs map to genes with key roles in calcium regulation (ATP2B2, CASR, GUCA1B, HPCAL1), and genes identified in genome- and epigenome-wide studies of serum calcium (CASR), serum calcium-related risk of CHD (CASR), coronary artery calcified plaque (PTPRN2), and kidney function (CDH23, HPCAL1), among others. Mendelian randomization analyses supported a causal effect of DNA methylation on incident CHD; these CpGs map to active regulatory regions proximal to long non-coding RNA transcripts.

CONCLUSION: Methylation of blood-derived DNA is associated with risk of future CHD across diverse populations and may serve as an informative tool for gaining further insight on the development of CHD.

}, keywords = {Adult, Aged, Cohort Studies, Coronary Disease, CpG Islands, DNA Methylation, Europe, Female, Genome-Wide Association Study, Humans, Incidence, Leukocytes, Male, Middle Aged, Myocardial Infarction, Population Groups, Prognosis, Prospective Studies, Risk, United States}, issn = {1524-4539}, doi = {10.1161/CIRCULATIONAHA.118.039357}, author = {Agha, Golareh and Mendelson, Michael M and Ward-Caviness, Cavin K and Joehanes, Roby and Huan, Tianxiao and Gondalia, Rahul and Salfati, Elias and Brody, Jennifer A and Fiorito, Giovanni and Bressler, Jan and Chen, Brian H and Ligthart, Symen and Guarrera, Simonetta and Colicino, Elena and Just, Allan C and Wahl, Simone and Gieger, Christian and Vandiver, Amy R and Tanaka, Toshiko and Hernandez, Dena G and Pilling, Luke C and Singleton, Andrew B and Sacerdote, Carlotta and Krogh, Vittorio and Panico, Salvatore and Tumino, Rosario and Li, Yun and Zhang, Guosheng and Stewart, James D and Floyd, James S and Wiggins, Kerri L and Rotter, Jerome I and Multhaup, Michael and Bakulski, Kelly and Horvath, Steven and Tsao, Philip S and Absher, Devin M and Vokonas, Pantel and Hirschhorn, Joel and Fallin, M Daniele and Liu, Chunyu and Bandinelli, Stefania and Boerwinkle, Eric and Dehghan, Abbas and Schwartz, Joel D and Psaty, Bruce M and Feinberg, Andrew P and Hou, Lifang and Ferrucci, Luigi and Sotoodehnia, Nona and Matullo, Giuseppe and Peters, Annette and Fornage, Myriam and Assimes, Themistocles L and Whitsel, Eric A and Levy, Daniel and Baccarelli, Andrea A} }