@article {1108, title = {Genetic variants associated with cardiac structure and function: a meta-analysis and replication of genome-wide association data.}, journal = {JAMA}, volume = {302}, year = {2009}, month = {2009 Jul 08}, pages = {168-78}, abstract = {

CONTEXT: Echocardiographic measures of left ventricular (LV) structure and function are heritable phenotypes of cardiovascular disease.

OBJECTIVE: To identify common genetic variants associated with cardiac structure and function by conducting a meta-analysis of genome-wide association data in 5 population-based cohort studies (stage 1) with replication (stage 2) in 2 other community-based samples.

DESIGN, SETTING, AND PARTICIPANTS: Within each of 5 community-based cohorts comprising the EchoGen consortium (stage 1; n = 12 612 individuals of European ancestry; 55\% women, aged 26-95 years; examinations between 1978-2008), we estimated the association between approximately 2.5 million single-nucleotide polymorphisms (SNPs; imputed to the HapMap CEU panel) and echocardiographic traits. In stage 2, SNPs significantly associated with traits in stage 1 were tested for association in 2 other cohorts (n = 4094 people of European ancestry). Using a prespecified P value threshold of 5 x 10(-7) to indicate genome-wide significance, we performed an inverse variance-weighted fixed-effects meta-analysis of genome-wide association data from each cohort.

MAIN OUTCOME MEASURES: Echocardiographic traits: LV mass, internal dimensions, wall thickness, systolic dysfunction, aortic root, and left atrial size.

RESULTS: In stage 1, 16 genetic loci were associated with 5 echocardiographic traits: 1 each with LV internal dimensions and systolic dysfunction, 3 each with LV mass and wall thickness, and 8 with aortic root size. In stage 2, 5 loci replicated (6q22 locus associated with LV diastolic dimensions, explaining <1\% of trait variance; 5q23, 12p12, 12q14, and 17p13 associated with aortic root size, explaining 1\%-3\% of trait variance).

CONCLUSIONS: We identified 5 genetic loci harboring common variants that were associated with variation in LV diastolic dimensions and aortic root size, but such findings explained a very small proportion of variance. Further studies are required to replicate these findings, identify the causal variants at or near these loci, characterize their functional significance, and determine whether they are related to overt cardiovascular disease.

}, keywords = {Adult, Aged, Aged, 80 and over, Aorta, Cardiovascular Diseases, Echocardiography, European Continental Ancestry Group, Female, Genome-Wide Association Study, Genotype, Heart Atria, Heart Ventricles, Humans, Male, Middle Aged, Organ Size, Phenotype, Polymorphism, Single Nucleotide, Risk Factors, Ventricular Dysfunction, Left, Ventricular Function, Left}, issn = {1538-3598}, doi = {10.1001/jama.2009.978-a}, author = {Vasan, Ramachandran S and Glazer, Nicole L and Felix, Janine F and Lieb, Wolfgang and Wild, Philipp S and Felix, Stephan B and Watzinger, Norbert and Larson, Martin G and Smith, Nicholas L and Dehghan, Abbas and Grosshennig, Anika and Schillert, Arne and Teumer, Alexander and Schmidt, Reinhold and Kathiresan, Sekar and Lumley, Thomas and Aulchenko, Yurii S and K{\"o}nig, Inke R and Zeller, Tanja and Homuth, Georg and Struchalin, Maksim and Aragam, Jayashri and Bis, Joshua C and Rivadeneira, Fernando and Erdmann, Jeanette and Schnabel, Renate B and D{\"o}rr, Marcus and Zweiker, Robert and Lind, Lars and Rodeheffer, Richard J and Greiser, Karin Halina and Levy, Daniel and Haritunians, Talin and Deckers, Jaap W and Stritzke, Jan and Lackner, Karl J and V{\"o}lker, Uwe and Ingelsson, Erik and Kullo, Iftikhar and Haerting, Johannes and O{\textquoteright}Donnell, Christopher J and Heckbert, Susan R and Stricker, Bruno H and Ziegler, Andreas and Reffelmann, Thorsten and Redfield, Margaret M and Werdan, Karl and Mitchell, Gary F and Rice, Kenneth and Arnett, Donna K and Hofman, Albert and Gottdiener, John S and Uitterlinden, Andr{\'e} G and Meitinger, Thomas and Blettner, Maria and Friedrich, Nele and Wang, Thomas J and Psaty, Bruce M and van Duijn, Cornelia M and Wichmann, H-Erich and Munzel, Thomas F and Kroemer, Heyo K and Benjamin, Emelia J and Rotter, Jerome I and Witteman, Jacqueline C and Schunkert, Heribert and Schmidt, Helena and V{\"o}lzke, Henry and Blankenberg, Stefan} } @article {7373, title = {Large-scale genome-wide analysis identifies genetic variants associated with cardiac structure and function.}, journal = {J Clin Invest}, volume = {127}, year = {2017}, month = {2017 May 01}, pages = {1798-1812}, abstract = {

BACKGROUND: Understanding the genetic architecture of cardiac structure and function may help to prevent and treat heart disease. This investigation sought to identify common genetic variations associated with inter-individual variability in cardiac structure and function.

METHODS: A GWAS meta-analysis of echocardiographic traits was performed, including 46,533 individuals from 30 studies (EchoGen consortium). The analysis included 16 traits of left ventricular (LV) structure, and systolic and diastolic function.

RESULTS: The discovery analysis included 21 cohorts for structural and systolic function traits (n = 32,212) and 17 cohorts for diastolic function traits (n = 21,852). Replication was performed in 5 cohorts (n = 14,321) and 6 cohorts (n = 16,308), respectively. Besides 5 previously reported loci, the combined meta-analysis identified 10 additional genome-wide significant SNPs: rs12541595 near MTSS1 and rs10774625 in ATXN2 for LV end-diastolic internal dimension; rs806322 near KCNRG, rs4765663 in CACNA1C, rs6702619 near PALMD, rs7127129 in TMEM16A, rs11207426 near FGGY, rs17608766 in GOSR2, and rs17696696 in CFDP1 for aortic root diameter; and rs12440869 in IQCH for Doppler transmitral A-wave peak velocity. Findings were in part validated in other cohorts and in GWAS of related disease traits. The genetic loci showed associations with putative signaling pathways, and with gene expression in whole blood, monocytes, and myocardial tissue.

CONCLUSION: The additional genetic loci identified in this large meta-analysis of cardiac structure and function provide insights into the underlying genetic architecture of cardiac structure and warrant follow-up in future functional studies.

FUNDING: For detailed information per study, see Acknowledgments.

}, issn = {1558-8238}, doi = {10.1172/JCI84840}, author = {Wild, Philipp S and Felix, Janine F and Schillert, Arne and Teumer, Alexander and Chen, Ming-Huei and Leening, Maarten J G and V{\"o}lker, Uwe and Gro{\ss}mann, Vera and Brody, Jennifer A and Irvin, Marguerite R and Shah, Sanjiv J and Pramana, Setia and Lieb, Wolfgang and Schmidt, Reinhold and Stanton, Alice V and Malzahn, D{\"o}rthe and Smith, Albert Vernon and Sundstr{\"o}m, Johan and Minelli, Cosetta and Ruggiero, Daniela and Lyytik{\"a}inen, Leo-Pekka and Tiller, Daniel and Smith, J Gustav and Monnereau, Claire and Di Tullio, Marco R and Musani, Solomon K and Morrison, Alanna C and Pers, Tune H and Morley, Michael and Kleber, Marcus E and Aragam, Jayashri and Benjamin, Emelia J and Bis, Joshua C and Bisping, Egbert and Broeckel, Ulrich and Cheng, Susan and Deckers, Jaap W and del Greco M, Fabiola and Edelmann, Frank and Fornage, Myriam and Franke, Lude and Friedrich, Nele and Harris, Tamara B and Hofer, Edith and Hofman, Albert and Huang, Jie and Hughes, Alun D and K{\"a}h{\"o}nen, Mika and Investigators, Knhi and Kruppa, Jochen and Lackner, Karl J and Lannfelt, Lars and Laskowski, Rafael and Launer, Lenore J and Leosdottir, Margr{\'e}t and Lin, Honghuang and Lindgren, Cecilia M and Loley, Christina and MacRae, Calum A and Mascalzoni, Deborah and Mayet, Jamil and Medenwald, Daniel and Morris, Andrew P and M{\"u}ller, Christian and M{\"u}ller-Nurasyid, Martina and Nappo, Stefania and Nilsson, Peter M and Nuding, Sebastian and Nutile, Teresa and Peters, Annette and Pfeufer, Arne and Pietzner, Diana and Pramstaller, Peter P and Raitakari, Olli T and Rice, Kenneth M and Rivadeneira, Fernando and Rotter, Jerome I and Ruohonen, Saku T and Sacco, Ralph L and Samdarshi, Tandaw E and Schmidt, Helena and Sharp, Andrew S P and Shields, Denis C and Sorice, Rossella and Sotoodehnia, Nona and Stricker, Bruno H and Surendran, Praveen and Thom, Simon and T{\"o}glhofer, Anna M and Uitterlinden, Andr{\'e} G and Wachter, Rolf and V{\"o}lzke, Henry and Ziegler, Andreas and M{\"u}nzel, Thomas and M{\"a}rz, Winfried and Cappola, Thomas P and Hirschhorn, Joel N and Mitchell, Gary F and Smith, Nicholas L and Fox, Ervin R and Dueker, Nicole D and Jaddoe, Vincent W V and Melander, Olle and Russ, Martin and Lehtim{\"a}ki, Terho and Ciullo, Marina and Hicks, Andrew A and Lind, Lars and Gudnason, Vilmundur and Pieske, Burkert and Barron, Anthony J and Zweiker, Robert and Schunkert, Heribert and Ingelsson, Erik and Liu, Kiang and Arnett, Donna K and Psaty, Bruce M and Blankenberg, Stefan and Larson, Martin G and Felix, Stephan B and Franco, Oscar H and Zeller, Tanja and Vasan, Ramachandran S and D{\"o}rr, Marcus} }