@article {1218, title = {Genetic ancestry in lung-function predictions.}, journal = {N Engl J Med}, volume = {363}, year = {2010}, month = {2010 Jul 22}, pages = {321-30}, abstract = {

BACKGROUND: Self-identified race or ethnic group is used to determine normal reference standards in the prediction of pulmonary function. We conducted a study to determine whether the genetically determined percentage of African ancestry is associated with lung function and whether its use could improve predictions of lung function among persons who identified themselves as African American.

METHODS: We assessed the ancestry of 777 participants self-identified as African American in the Coronary Artery Risk Development in Young Adults (CARDIA) study and evaluated the relation between pulmonary function and ancestry by means of linear regression. We performed similar analyses of data for two independent cohorts of subjects identifying themselves as African American: 813 participants in the Health, Aging, and Body Composition (HABC) study and 579 participants in the Cardiovascular Health Study (CHS). We compared the fit of two types of models to lung-function measurements: models based on the covariates used in standard prediction equations and models incorporating ancestry. We also evaluated the effect of the ancestry-based models on the classification of disease severity in two asthma-study populations.

RESULTS: African ancestry was inversely related to forced expiratory volume in 1 second (FEV(1)) and forced vital capacity in the CARDIA cohort. These relations were also seen in the HABC and CHS cohorts. In predicting lung function, the ancestry-based model fit the data better than standard models. Ancestry-based models resulted in the reclassification of asthma severity (based on the percentage of the predicted FEV(1)) in 4 to 5\% of participants.

CONCLUSIONS: Current predictive equations, which rely on self-identified race alone, may misestimate lung function among subjects who identify themselves as African American. Incorporating ancestry into normative equations may improve lung-function estimates and more accurately categorize disease severity. (Funded by the National Institutes of Health and others.)

}, keywords = {Adolescent, Adult, African Americans, Aged, Aged, 80 and over, Female, Forced Expiratory Volume, Genetic Markers, Genotype, Humans, Linear Models, Male, Middle Aged, Oligonucleotide Array Sequence Analysis, Reference Values, Respiratory Function Tests, Vital Capacity, Young Adult}, issn = {1533-4406}, doi = {10.1056/NEJMoa0907897}, author = {Kumar, Rajesh and Seibold, Max A and Aldrich, Melinda C and Williams, L Keoki and Reiner, Alex P and Colangelo, Laura and Galanter, Joshua and Gignoux, Christopher and Hu, Donglei and Sen, Saunak and Choudhry, Shweta and Peterson, Edward L and Rodriguez-Santana, Jose and Rodriguez-Cintron, William and Nalls, Michael A and Leak, Tennille S and O{\textquoteright}Meara, Ellen and Meibohm, Bernd and Kritchevsky, Stephen B and Li, Rongling and Harris, Tamara B and Nickerson, Deborah A and Fornage, Myriam and Enright, Paul and Ziv, Elad and Smith, Lewis J and Liu, Kiang and Burchard, Esteban Gonz{\'a}lez} } @article {1179, title = {A meta-analysis of four genome-wide association studies of survival to age 90 years or older: the Cohorts for Heart and Aging Research in Genomic Epidemiology Consortium.}, journal = {J Gerontol A Biol Sci Med Sci}, volume = {65}, year = {2010}, month = {2010 May}, pages = {478-87}, abstract = {

BACKGROUND: Genome-wide association studies (GWAS) may yield insights into longevity.

METHODS: We performed a meta-analysis of GWAS in Caucasians from four prospective cohort studies: the Age, Gene/Environment Susceptibility-Reykjavik Study, the Cardiovascular Health Study, the Framingham Heart Study, and the Rotterdam Study participating in the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) Consortium. Longevity was defined as survival to age 90 years or older (n = 1,836); the comparison group comprised cohort members who died between the ages of 55 and 80 years (n = 1,955). In a second discovery stage, additional genotyping was conducted in the Leiden Longevity Study cohort and the Danish 1905 cohort.

RESULTS: There were 273 single-nucleotide polymorphism (SNP) associations with p < .0001, but none reached the prespecified significance level of 5 x 10(-8). Of the most significant SNPs, 24 were independent signals, and 16 of these SNPs were successfully genotyped in the second discovery stage, with one association for rs9664222, reaching 6.77 x 10(-7) for the combined meta-analysis of CHARGE and the stage 2 cohorts. The SNP lies in a region near MINPP1 (chromosome 10), a well-conserved gene involved in regulation of cellular proliferation. The minor allele was associated with lower odds of survival past age 90 (odds ratio = 0.82). Associations of interest in a homologue of the longevity assurance gene (LASS3) and PAPPA2 were not strengthened in the second stage.

CONCLUSION: Survival studies of larger size or more extreme or specific phenotypes may support or refine these initial findings.

}, keywords = {Adult, Age Factors, Aged, Aged, 80 and over, Alleles, Cohort Studies, Confidence Intervals, Female, Genome-Wide Association Study, Genotype, Humans, Longevity, Male, Middle Aged, Odds Ratio, Polymorphism, Single Nucleotide}, issn = {1758-535X}, doi = {10.1093/gerona/glq028}, author = {Newman, Anne B and Walter, Stefan and Lunetta, Kathryn L and Garcia, Melissa E and Slagboom, P Eline and Christensen, Kaare and Arnold, Alice M and Aspelund, Thor and Aulchenko, Yurii S and Benjamin, Emelia J and Christiansen, Lene and D{\textquoteright}Agostino, Ralph B and Fitzpatrick, Annette L and Franceschini, Nora and Glazer, Nicole L and Gudnason, Vilmundur and Hofman, Albert and Kaplan, Robert and Karasik, David and Kelly-Hayes, Margaret and Kiel, Douglas P and Launer, Lenore J and Marciante, Kristin D and Massaro, Joseph M and Miljkovic, Iva and Nalls, Michael A and Hernandez, Dena and Psaty, Bruce M and Rivadeneira, Fernando and Rotter, Jerome and Seshadri, Sudha and Smith, Albert V and Taylor, Kent D and Tiemeier, Henning and Uh, Hae-Won and Uitterlinden, Andr{\'e} G and Vaupel, James W and Walston, Jeremy and Westendorp, Rudi G J and Harris, Tamara B and Lumley, Thomas and van Duijn, Cornelia M and Murabito, Joanne M} } @article {1298, title = {Genome-wide association studies of cerebral white matter lesion burden: the CHARGE consortium.}, journal = {Ann Neurol}, volume = {69}, year = {2011}, month = {2011 Jun}, pages = {928-39}, abstract = {

OBJECTIVE: White matter hyperintensities (WMHs) detectable by magnetic resonance imaging are part of the spectrum of vascular injury associated with aging of the brain and are thought to reflect ischemic damage to the small deep cerebral vessels. WMHs are associated with an increased risk of cognitive and motor dysfunction, dementia, depression, and stroke. Despite a significant heritability, few genetic loci influencing WMH burden have been identified.

METHODS: We performed a meta-analysis of genome-wide association studies (GWASs) for WMH burden in 9,361 stroke-free individuals of European descent from 7 community-based cohorts. Significant findings were tested for replication in 3,024 individuals from 2 additional cohorts.

RESULTS: We identified 6 novel risk-associated single nucleotide polymorphisms (SNPs) in 1 locus on chromosome 17q25 encompassing 6 known genes including WBP2, TRIM65, TRIM47, MRPL38, FBF1, and ACOX1. The most significant association was for rs3744028 (p(discovery) = 4.0 {\texttimes} 10(-9) ; p(replication) = 1.3 {\texttimes} 10(-7) ; p(combined) = 4.0 {\texttimes} 10(-15) ). Other SNPs in this region also reaching genome-wide significance were rs9894383 (p = 5.3 {\texttimes} 10(-9) ), rs11869977 (p = 5.7 {\texttimes} 10(-9) ), rs936393 (p = 6.8 {\texttimes} 10(-9) ), rs3744017 (p = 7.3 {\texttimes} 10(-9) ), and rs1055129 (p = 4.1 {\texttimes} 10(-8) ). Variant alleles at these loci conferred a small increase in WMH burden (4-8\% of the overall mean WMH burden in the sample).

INTERPRETATION: This large GWAS of WMH burden in community-based cohorts of individuals of European descent identifies a novel locus on chromosome 17. Further characterization of this locus may provide novel insights into the pathogenesis of cerebral WMH.

}, keywords = {Aged, Aged, 80 and over, Cerebral Cortex, Chromosomes, Human, Pair 17, Cognition Disorders, Cohort Studies, European Continental Ancestry Group, Female, Gene Frequency, Genetic Predisposition to Disease, Genome-Wide Association Study, Genotype, Humans, Leukoencephalopathies, Magnetic Resonance Imaging, Male, Middle Aged, Movement Disorders, Nerve Fibers, Myelinated, Polymorphism, Single Nucleotide, Residence Characteristics, RNA, Messenger}, issn = {1531-8249}, doi = {10.1002/ana.22403}, author = {Fornage, Myriam and Debette, Stephanie and Bis, Joshua C and Schmidt, Helena and Ikram, M Arfan and Dufouil, Carole and Sigurdsson, Sigurdur and Lumley, Thomas and DeStefano, Anita L and Fazekas, Franz and Vrooman, Henri A and Shibata, Dean K and Maillard, Pauline and Zijdenbos, Alex and Smith, Albert V and Gudnason, Haukur and de Boer, Renske and Cushman, Mary and Mazoyer, Bernard and Heiss, Gerardo and Vernooij, Meike W and Enzinger, Christian and Glazer, Nicole L and Beiser, Alexa and Knopman, David S and Cavalieri, Margherita and Niessen, Wiro J and Harris, Tamara B and Petrovic, Katja and Lopez, Oscar L and Au, Rhoda and Lambert, Jean-Charles and Hofman, Albert and Gottesman, Rebecca F and Garcia, Melissa and Heckbert, Susan R and Atwood, Larry D and Catellier, Diane J and Uitterlinden, Andr{\'e} G and Yang, Qiong and Smith, Nicholas L and Aspelund, Thor and Romero, Jose R and Rice, Kenneth and Taylor, Kent D and Nalls, Michael A and Rotter, Jerome I and Sharrett, Richey and van Duijn, Cornelia M and Amouyel, Philippe and Wolf, Philip A and Gudnason, Vilmundur and van der Lugt, Aad and Boerwinkle, Eric and Psaty, Bruce M and Seshadri, Sudha and Tzourio, Christophe and Breteler, Monique M B and Mosley, Thomas H and Schmidt, Reinhold and Longstreth, W T and DeCarli, Charles and Launer, Lenore J} } @article {1305, title = {Genome-wide association study for serum urate concentrations and gout among African Americans identifies genomic risk loci and a novel URAT1 loss-of-function allele.}, journal = {Hum Mol Genet}, volume = {20}, year = {2011}, month = {2011 Oct 15}, pages = {4056-68}, abstract = {

Serum urate concentrations are highly heritable and elevated serum urate is a key risk factor for gout. Genome-wide association studies (GWAS) of serum urate in African American (AA) populations are lacking. We conducted a meta-analysis of GWAS of serum urate levels and gout among 5820 AA and a large candidate gene study among 6890 AA and 21 708 participants of European ancestry (EA) within the Candidate Gene Association Resource Consortium. Findings were tested for replication among 1996 independent AA individuals, and evaluated for their association among 28 283 EA participants of the CHARGE Consortium. Functional studies were conducted using (14)C-urate transport assays in mammalian Chinese hamster ovary cells. In the discovery GWAS of serum urate, three loci achieved genome-wide significance (P< 5.0 {\texttimes} 10(-8)): a novel locus near SGK1/SLC2A12 on chromosome 6 (rs9321453, P= 1.0 {\texttimes} 10(-9)), and two loci previously identified in EA participants, SLC2A9 (P= 3.8 {\texttimes} 10(-32)) and SLC22A12 (P= 2.1 {\texttimes} 10(-10)). A novel rare non-synonymous variant of large effect size in SLC22A12, rs12800450 (minor allele frequency 0.01, G65W), was identified and replicated (beta -1.19 mg/dl, P= 2.7 {\texttimes} 10(-16)). (14)C-urate transport assays showed reduced urate transport for the G65W URAT1 mutant. Finally, in analyses of 11 loci previously associated with serum urate in EA individuals, 10 of 11 lead single-nucleotide polymorphisms showed direction-consistent association with urate among AA. In summary, we identified and replicated one novel locus in association with serum urate levels and experimentally characterize the novel G65W variant in URAT1 as a functional allele. Our data support the importance of multi-ethnic GWAS in the identification of novel risk loci as well as functional variants.

}, keywords = {Adult, African Americans, Aged, Animals, CHO Cells, Cricetinae, European Continental Ancestry Group, Female, Genetic Loci, Genetic Predisposition to Disease, Genome-Wide Association Study, Genotype, Gout, Humans, Loss of Heterozygosity, Male, Middle Aged, Organic Anion Transporters, Organic Cation Transport Proteins, Polymorphism, Single Nucleotide, Uric Acid, Young Adult}, issn = {1460-2083}, doi = {10.1093/hmg/ddr307}, author = {Tin, Adrienne and Woodward, Owen M and Kao, Wen Hong Linda and Liu, Ching-Ti and Lu, Xiaoning and Nalls, Michael A and Shriner, Daniel and Semmo, Mariam and Akylbekova, Ermeg L and Wyatt, Sharon B and Hwang, Shih-Jen and Yang, Qiong and Zonderman, Alan B and Adeyemo, Adebowale A and Palmer, Cameron and Meng, Yan and Reilly, Muredach and Shlipak, Michael G and Siscovick, David and Evans, Michele K and Rotimi, Charles N and Flessner, Michael F and K{\"o}ttgen, Michael and Cupples, L Adrienne and Fox, Caroline S and K{\"o}ttgen, Anna} } @article {6179, title = {Impact of ancestry and common genetic variants on QT interval in African Americans.}, journal = {Circ Cardiovasc Genet}, volume = {5}, year = {2012}, month = {2012 Dec}, pages = {647-55}, abstract = {

BACKGROUND: Ethnic differences in cardiac arrhythmia incidence have been reported, with a particularly high incidence of sudden cardiac death and low incidence of atrial fibrillation in individuals of African ancestry. We tested the hypotheses that African ancestry and common genetic variants are associated with prolonged duration of cardiac repolarization, a central pathophysiological determinant of arrhythmia, as measured by the electrocardiographic QT interval.

METHODS AND RESULTS: First, individual estimates of African and European ancestry were inferred from genome-wide single-nucleotide polymorphism (SNP) data in 7 population-based cohorts of African Americans (n=12,097) and regressed on measured QT interval from ECGs. Second, imputation was performed for 2.8 million SNPs, and a genome-wide association study of QT interval was performed in 10 cohorts (n=13,105). There was no evidence of association between genetic ancestry and QT interval (P=0.94). Genome-wide significant associations (P<2.5 {\texttimes} 10(-8)) were identified with SNPs at 2 loci, upstream of the genes NOS1AP (rs12143842, P=2 {\texttimes} 10(-15)) and ATP1B1 (rs1320976, P=2 {\texttimes} 10(-10)). The most significant SNP in NOS1AP was the same as the strongest SNP previously associated with QT interval in individuals of European ancestry. Low probability values (P<10(-5)) were observed for SNPs at several other loci previously identified in genome-wide association studies in individuals of European ancestry, including KCNQ1, KCNH2, LITAF, and PLN.

CONCLUSIONS: We observed no difference in duration of cardiac repolarization with global genetic indices of African American ancestry. In addition, our genome-wide association study extends the association of polymorphisms at several loci associated with repolarization in individuals of European ancestry to include individuals of African ancestry.

}, keywords = {Adult, African Americans, Aged, Electrocardiography, European Continental Ancestry Group, Female, Genealogy and Heraldry, Genetic Variation, Genome, Human, Genome-Wide Association Study, Humans, Male, Middle Aged, Polymorphism, Single Nucleotide}, issn = {1942-3268}, doi = {10.1161/CIRCGENETICS.112.962787}, author = {Smith, J Gustav and Avery, Christy L and Evans, Daniel S and Nalls, Michael A and Meng, Yan A and Smith, Erin N and Palmer, Cameron and Tanaka, Toshiko and Mehra, Reena and Butler, Anne M and Young, Taylor and Buxbaum, Sarah G and Kerr, Kathleen F and Berenson, Gerald S and Schnabel, Renate B and Li, Guo and Ellinor, Patrick T and Magnani, Jared W and Chen, Wei and Bis, Joshua C and Curb, J David and Hsueh, Wen-Chi and Rotter, Jerome I and Liu, Yongmei and Newman, Anne B and Limacher, Marian C and North, Kari E and Reiner, Alexander P and Quibrera, P Miguel and Schork, Nicholas J and Singleton, Andrew B and Psaty, Bruce M and Soliman, Elsayed Z and Solomon, Allen J and Srinivasan, Sathanur R and Alonso, Alvaro and Wallace, Robert and Redline, Susan and Zhang, Zhu-Ming and Post, Wendy S and Zonderman, Alan B and Taylor, Herman A and Murray, Sarah S and Ferrucci, Luigi and Arking, Dan E and Evans, Michele K and Fox, Ervin R and Sotoodehnia, Nona and Heckbert, Susan R and Whitsel, Eric A and Newton-Cheh, Christopher} } @article {6084, title = {Novel loci associated with PR interval in a genome-wide association study of 10 African American cohorts.}, journal = {Circ Cardiovasc Genet}, volume = {5}, year = {2012}, month = {2012 Dec}, pages = {639-46}, abstract = {

BACKGROUND: The PR interval, as measured by the resting, standard 12-lead ECG, reflects the duration of atrial/atrioventricular nodal depolarization. Substantial evidence exists for a genetic contribution to PR, including genome-wide association studies that have identified common genetic variants at 9 loci influencing PR in populations of European and Asian descent. However, few studies have examined loci associated with PR in African Americans.

METHODS AND RESULTS: We present results from the largest genome-wide association study to date of PR in 13 415 adults of African descent from 10 cohorts. We tested for association between PR (ms) and ≈2.8 million genotyped and imputed single-nucleotide polymorphisms. Imputation was performed using HapMap 2 YRI and CEU panels. Study-specific results, adjusted for global ancestry and clinical correlates of PR, were meta-analyzed using the inverse variance method. Variation in genome-wide test statistic distributions was noted within studies (λ range: 0.9-1.1), although not after genomic control correction was applied to the overall meta-analysis (λ: 1.008). In addition to generalizing previously reported associations with MEIS1, SCN5A, ARHGAP24, CAV1, and TBX5 to African American populations at the genome-wide significance level (P<5.0 {\texttimes} 10(-8)), we also identified a novel locus: ITGA9, located in a region previously implicated in SCN5A expression. The 3p21 region harboring SCN5A also contained 2 additional independent secondary signals influencing PR (P<5.0 {\texttimes} 10(-8)).

CONCLUSIONS: This study demonstrates the ability to map novel loci in African Americans as well as the generalizability of loci associated with PR across populations of African, European, and Asian descent.

}, keywords = {Adult, African Americans, Cohort Studies, Electrocardiography, Female, Genetic Loci, Genome-Wide Association Study, Humans, Male, Meta-Analysis as Topic, Middle Aged, Polymorphism, Single Nucleotide}, issn = {1942-3268}, doi = {10.1161/CIRCGENETICS.112.963991}, author = {Butler, Anne M and Yin, Xiaoyan and Evans, Daniel S and Nalls, Michael A and Smith, Erin N and Tanaka, Toshiko and Li, Guo and Buxbaum, Sarah G and Whitsel, Eric A and Alonso, Alvaro and Arking, Dan E and Benjamin, Emelia J and Berenson, Gerald S and Bis, Josh C and Chen, Wei and Deo, Rajat and Ellinor, Patrick T and Heckbert, Susan R and Heiss, Gerardo and Hsueh, Wen-Chi and Keating, Brendan J and Kerr, Kathleen F and Li, Yun and Limacher, Marian C and Liu, Yongmei and Lubitz, Steven A and Marciante, Kristin D and Mehra, Reena and Meng, Yan A and Newman, Anne B and Newton-Cheh, Christopher and North, Kari E and Palmer, Cameron D and Psaty, Bruce M and Quibrera, P Miguel and Redline, Susan and Reiner, Alex P and Rotter, Jerome I and Schnabel, Renate B and Schork, Nicholas J and Singleton, Andrew B and Smith, J Gustav and Soliman, Elsayed Z and Srinivasan, Sathanur R and Zhang, Zhu-Ming and Zonderman, Alan B and Ferrucci, Luigi and Murray, Sarah S and Evans, Michele K and Sotoodehnia, Nona and Magnani, Jared W and Avery, Christy L} } @article {6287, title = {Genome-wide association of body fat distribution in African ancestry populations suggests new loci.}, journal = {PLoS Genet}, volume = {9}, year = {2013}, month = {2013}, pages = {e1003681}, abstract = {

Central obesity, measured by waist circumference (WC) or waist-hip ratio (WHR), is a marker of body fat distribution. Although obesity disproportionately affects minority populations, few studies have conducted genome-wide association study (GWAS) of fat distribution among those of predominantly African ancestry (AA). We performed GWAS of WC and WHR, adjusted and unadjusted for BMI, in up to 33,591 and 27,350 AA individuals, respectively. We identified loci associated with fat distribution in AA individuals using meta-analyses of GWA results for WC and WHR (stage 1). Overall, 25 SNPs with single genomic control (GC)-corrected p-values<5.0 {\texttimes} 10(-6) were followed-up (stage 2) in AA with WC and with WHR. Additionally, we interrogated genomic regions of previously identified European ancestry (EA) WHR loci among AA. In joint analysis of association results including both Stage 1 and 2 cohorts, 2 SNPs demonstrated association, rs2075064 at LHX2, p = 2.24{\texttimes}10(-8) for WC-adjusted-for-BMI, and rs6931262 at RREB1, p = 2.48{\texttimes}10(-8) for WHR-adjusted-for-BMI. However, neither signal was genome-wide significant after double GC-correction (LHX2: p = 6.5 {\texttimes} 10(-8); RREB1: p = 5.7 {\texttimes} 10(-8)). Six of fourteen previously reported loci for waist in EA populations were significant (p<0.05 divided by the number of independent SNPs within the region) in AA studied here (TBX15-WARS2, GRB14, ADAMTS9, LY86, RSPO3, ITPR2-SSPN). Further, we observed associations with metabolic traits: rs13389219 at GRB14 associated with HDL-cholesterol, triglycerides, and fasting insulin, and rs13060013 at ADAMTS9 with HDL-cholesterol and fasting insulin. Finally, we observed nominal evidence for sexual dimorphism, with stronger results in AA women at the GRB14 locus (p for interaction = 0.02). In conclusion, we identified two suggestive loci associated with fat distribution in AA populations in addition to confirming 6 loci previously identified in populations of EA. These findings reinforce the concept that there are fat distribution loci that are independent of generalized adiposity.

}, keywords = {Adiposity, African Continental Ancestry Group, Body Fat Distribution, European Continental Ancestry Group, Female, Genetic Loci, Genome-Wide Association Study, Humans, Male, Obesity, Polymorphism, Single Nucleotide, Waist-Hip Ratio}, issn = {1553-7404}, doi = {10.1371/journal.pgen.1003681}, author = {Liu, Ching-Ti and Monda, Keri L and Taylor, Kira C and Lange, Leslie and Demerath, Ellen W and Palmas, Walter and Wojczynski, Mary K and Ellis, Jaclyn C and Vitolins, Mara Z and Liu, Simin and Papanicolaou, George J and Irvin, Marguerite R and Xue, Luting and Griffin, Paula J and Nalls, Michael A and Adeyemo, Adebowale and Liu, Jiankang and Li, Guo and Ruiz-Narvaez, Edward A and Chen, Wei-Min and Chen, Fang and Henderson, Brian E and Millikan, Robert C and Ambrosone, Christine B and Strom, Sara S and Guo, Xiuqing and Andrews, Jeanette S and Sun, Yan V and Mosley, Thomas H and Yanek, Lisa R and Shriner, Daniel and Haritunians, Talin and Rotter, Jerome I and Speliotes, Elizabeth K and Smith, Megan and Rosenberg, Lynn and Mychaleckyj, Josyf and Nayak, Uma and Spruill, Ida and Garvey, W Timothy and Pettaway, Curtis and Nyante, Sarah and Bandera, Elisa V and Britton, Angela F and Zonderman, Alan B and Rasmussen-Torvik, Laura J and Chen, Yii-Der Ida and Ding, Jingzhong and Lohman, Kurt and Kritchevsky, Stephen B and Zhao, Wei and Peyser, Patricia A and Kardia, Sharon L R and Kabagambe, Edmond and Broeckel, Ulrich and Chen, Guanjie and Zhou, Jie and Wassertheil-Smoller, Sylvia and Neuhouser, Marian L and Rampersaud, Evadnie and Psaty, Bruce and Kooperberg, Charles and Manson, JoAnn E and Kuller, Lewis H and Ochs-Balcom, Heather M and Johnson, Karen C and Sucheston, Lara and Ordovas, Jose M and Palmer, Julie R and Haiman, Christopher A and McKnight, Barbara and Howard, Barbara V and Becker, Diane M and Bielak, Lawrence F and Liu, Yongmei and Allison, Matthew A and Grant, Struan F A and Burke, Gregory L and Patel, Sanjay R and Schreiner, Pamela J and Borecki, Ingrid B and Evans, Michele K and Taylor, Herman and Sale, Mich{\`e}le M and Howard, Virginia and Carlson, Christopher S and Rotimi, Charles N and Cushman, Mary and Harris, Tamara B and Reiner, Alexander P and Cupples, L Adrienne and North, Kari E and Fox, Caroline S} } @article {6070, title = {A genome-wide association study of depressive symptoms.}, journal = {Biol Psychiatry}, volume = {73}, year = {2013}, month = {2013 Apr 01}, pages = {667-78}, abstract = {

BACKGROUND: Depression is a heritable trait that exists on a continuum of varying severity and duration. Yet, the search for genetic variants associated with depression has had few successes. We exploit the entire continuum of depression to find common variants for depressive symptoms.

METHODS: In this genome-wide association study, we combined the results of 17 population-based studies assessing depressive symptoms with the Center for Epidemiological Studies Depression Scale. Replication of the independent top hits (p<1{\texttimes}10(-5)) was performed in five studies assessing depressive symptoms with other instruments. In addition, we performed a combined meta-analysis of all 22 discovery and replication studies.

RESULTS: The discovery sample comprised 34,549 individuals (mean age of 66.5) and no loci reached genome-wide significance (lowest p = 1.05{\texttimes}10(-7)). Seven independent single nucleotide polymorphisms were considered for replication. In the replication set (n = 16,709), we found suggestive association of one single nucleotide polymorphism with depressive symptoms (rs161645, 5q21, p = 9.19{\texttimes}10(-3)). This 5q21 region reached genome-wide significance (p = 4.78{\texttimes}10(-8)) in the overall meta-analysis combining discovery and replication studies (n = 51,258).

CONCLUSIONS: The results suggest that only a large sample comprising more than 50,000 subjects may be sufficiently powered to detect genes for depressive symptoms.

}, keywords = {Aged, Aged, 80 and over, Chromosomes, Human, Pair 5, Depression, Female, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Male, Middle Aged, Polymorphism, Single Nucleotide}, issn = {1873-2402}, doi = {10.1016/j.biopsych.2012.09.033}, author = {Hek, Karin and Demirkan, Ayse and Lahti, Jari and Terracciano, Antonio and Teumer, Alexander and Cornelis, Marilyn C and Amin, Najaf and Bakshis, Erin and Baumert, Jens and Ding, Jingzhong and Liu, Yongmei and Marciante, Kristin and Meirelles, Osorio and Nalls, Michael A and Sun, Yan V and Vogelzangs, Nicole and Yu, Lei and Bandinelli, Stefania and Benjamin, Emelia J and Bennett, David A and Boomsma, Dorret and Cannas, Alessandra and Coker, Laura H and de Geus, Eco and De Jager, Philip L and Diez-Roux, Ana V and Purcell, Shaun and Hu, Frank B and Rimma, Eric B and Hunter, David J and Jensen, Majken K and Curhan, Gary and Rice, Kenneth and Penman, Alan D and Rotter, Jerome I and Sotoodehnia, Nona and Emeny, Rebecca and Eriksson, Johan G and Evans, Denis A and Ferrucci, Luigi and Fornage, Myriam and Gudnason, Vilmundur and Hofman, Albert and Illig, Thomas and Kardia, Sharon and Kelly-Hayes, Margaret and Koenen, Karestan and Kraft, Peter and Kuningas, Maris and Massaro, Joseph M and Melzer, David and Mulas, Antonella and Mulder, Cornelis L and Murray, Anna and Oostra, Ben A and Palotie, Aarno and Penninx, Brenda and Petersmann, Astrid and Pilling, Luke C and Psaty, Bruce and Rawal, Rajesh and Reiman, Eric M and Schulz, Andrea and Shulman, Joshua M and Singleton, Andrew B and Smith, Albert V and Sutin, Angelina R and Uitterlinden, Andr{\'e} G and V{\"o}lzke, Henry and Widen, Elisabeth and Yaffe, Kristine and Zonderman, Alan B and Cucca, Francesco and Harris, Tamara and Ladwig, Karl-Heinz and Llewellyn, David J and R{\"a}ikk{\"o}nen, Katri and Tanaka, Toshiko and van Duijn, Cornelia M and Grabe, Hans J and Launer, Lenore J and Lunetta, Kathryn L and Mosley, Thomas H and Newman, Anne B and Tiemeier, Henning and Murabito, Joanne} } @article {6544, title = {Genetic association study of QT interval highlights role for calcium signaling pathways in myocardial repolarization.}, journal = {Nat Genet}, volume = {46}, year = {2014}, month = {2014 Aug}, pages = {826-36}, abstract = {

The QT interval, an electrocardiographic measure reflecting myocardial repolarization, is a heritable trait. QT prolongation is a risk factor for ventricular arrhythmias and sudden cardiac death (SCD) and could indicate the presence of the potentially lethal mendelian long-QT syndrome (LQTS). Using a genome-wide association and replication study in up to 100,000 individuals, we identified 35 common variant loci associated with QT interval that collectively explain \~{}8-10\% of QT-interval variation and highlight the importance of calcium regulation in myocardial repolarization. Rare variant analysis of 6 new QT interval-associated loci in 298 unrelated probands with LQTS identified coding variants not found in controls but of uncertain causality and therefore requiring validation. Several newly identified loci encode proteins that physically interact with other recognized repolarization proteins. Our integration of common variant association, expression and orthogonal protein-protein interaction screens provides new insights into cardiac electrophysiology and identifies new candidate genes for ventricular arrhythmias, LQTS and SCD.

}, keywords = {Adult, Aged, Arrhythmias, Cardiac, Calcium Signaling, Death, Sudden, Cardiac, Electrocardiography, Female, Genetic Predisposition to Disease, Genome-Wide Association Study, Genotype, Heart Ventricles, Humans, Long QT Syndrome, Male, Middle Aged, Myocardium, Polymorphism, Single Nucleotide}, issn = {1546-1718}, doi = {10.1038/ng.3014}, author = {Arking, Dan E and Pulit, Sara L and Crotti, Lia and van der Harst, Pim and Munroe, Patricia B and Koopmann, Tamara T and Sotoodehnia, Nona and Rossin, Elizabeth J and Morley, Michael and Wang, Xinchen and Johnson, Andrew D and Lundby, Alicia and Gudbjartsson, Daniel F and Noseworthy, Peter A and Eijgelsheim, Mark and Bradford, Yuki and Tarasov, Kirill V and D{\"o}rr, Marcus and M{\"u}ller-Nurasyid, Martina and Lahtinen, Annukka M and Nolte, Ilja M and Smith, Albert Vernon and Bis, Joshua C and Isaacs, Aaron and Newhouse, Stephen J and Evans, Daniel S and Post, Wendy S and Waggott, Daryl and Lyytik{\"a}inen, Leo-Pekka and Hicks, Andrew A and Eisele, Lewin and Ellinghaus, David and Hayward, Caroline and Navarro, Pau and Ulivi, Sheila and Tanaka, Toshiko and Tester, David J and Chatel, St{\'e}phanie and Gustafsson, Stefan and Kumari, Meena and Morris, Richard W and Naluai, {\r A}sa T and Padmanabhan, Sandosh and Kluttig, Alexander and Strohmer, Bernhard and Panayiotou, Andrie G and Torres, Maria and Knoflach, Michael and Hubacek, Jaroslav A and Slowikowski, Kamil and Raychaudhuri, Soumya and Kumar, Runjun D and Harris, Tamara B and Launer, Lenore J and Shuldiner, Alan R and Alonso, Alvaro and Bader, Joel S and Ehret, Georg and Huang, Hailiang and Kao, W H Linda and Strait, James B and Macfarlane, Peter W and Brown, Morris and Caulfield, Mark J and Samani, Nilesh J and Kronenberg, Florian and Willeit, Johann and Smith, J Gustav and Greiser, Karin H and Meyer Zu Schwabedissen, Henriette and Werdan, Karl and Carella, Massimo and Zelante, Leopoldo and Heckbert, Susan R and Psaty, Bruce M and Rotter, Jerome I and Kolcic, Ivana and Polasek, Ozren and Wright, Alan F and Griffin, Maura and Daly, Mark J and Arnar, David O and Holm, Hilma and Thorsteinsdottir, Unnur and Denny, Joshua C and Roden, Dan M and Zuvich, Rebecca L and Emilsson, Valur and Plump, Andrew S and Larson, Martin G and O{\textquoteright}Donnell, Christopher J and Yin, Xiaoyan and Bobbo, Marco and D{\textquoteright}Adamo, Adamo P and Iorio, Annamaria and Sinagra, Gianfranco and Carracedo, Angel and Cummings, Steven R and Nalls, Michael A and Jula, Antti and Kontula, Kimmo K and Marjamaa, Annukka and Oikarinen, Lasse and Perola, Markus and Porthan, Kimmo and Erbel, Raimund and Hoffmann, Per and J{\"o}ckel, Karl-Heinz and K{\"a}lsch, Hagen and N{\"o}then, Markus M and den Hoed, Marcel and Loos, Ruth J F and Thelle, Dag S and Gieger, Christian and Meitinger, Thomas and Perz, Siegfried and Peters, Annette and Prucha, Hanna and Sinner, Moritz F and Waldenberger, Melanie and de Boer, Rudolf A and Franke, Lude and van der Vleuten, Pieter A and Beckmann, Britt Maria and Martens, Eimo and Bardai, Abdennasser and Hofman, Nynke and Wilde, Arthur A M and Behr, Elijah R and Dalageorgou, Chrysoula and Giudicessi, John R and Medeiros-Domingo, Argelia and Barc, Julien and Kyndt, Florence and Probst, Vincent and Ghidoni, Alice and Insolia, Roberto and Hamilton, Robert M and Scherer, Stephen W and Brandimarto, Jeffrey and Margulies, Kenneth and Moravec, Christine E and del Greco M, Fabiola and Fuchsberger, Christian and O{\textquoteright}Connell, Jeffrey R and Lee, Wai K and Watt, Graham C M and Campbell, Harry and Wild, Sarah H and El Mokhtari, Nour E and Frey, Norbert and Asselbergs, Folkert W and Mateo Leach, Irene and Navis, Gerjan and van den Berg, Maarten P and van Veldhuisen, Dirk J and Kellis, Manolis and Krijthe, Bouwe P and Franco, Oscar H and Hofman, Albert and Kors, Jan A and Uitterlinden, Andr{\'e} G and Witteman, Jacqueline C M and Kedenko, Lyudmyla and Lamina, Claudia and Oostra, Ben A and Abecasis, Goncalo R and Lakatta, Edward G and Mulas, Antonella and Orr{\`u}, Marco and Schlessinger, David and Uda, Manuela and Markus, Marcello R P and V{\"o}lker, Uwe and Snieder, Harold and Spector, Timothy D and Arnl{\"o}v, Johan and Lind, Lars and Sundstr{\"o}m, Johan and Syv{\"a}nen, Ann-Christine and Kivimaki, Mika and K{\"a}h{\"o}nen, Mika and Mononen, Nina and Raitakari, Olli T and Viikari, Jorma S and Adamkova, Vera and Kiechl, Stefan and Brion, Maria and Nicolaides, Andrew N and Paulweber, Bernhard and Haerting, Johannes and Dominiczak, Anna F and Nyberg, Fredrik and Whincup, Peter H and Hingorani, Aroon D and Schott, Jean-Jacques and Bezzina, Connie R and Ingelsson, Erik and Ferrucci, Luigi and Gasparini, Paolo and Wilson, James F and Rudan, Igor and Franke, Andre and M{\"u}hleisen, Thomas W and Pramstaller, Peter P and Lehtim{\"a}ki, Terho J and Paterson, Andrew D and Parsa, Afshin and Liu, Yongmei and van Duijn, Cornelia M and Siscovick, David S and Gudnason, Vilmundur and Jamshidi, Yalda and Salomaa, Veikko and Felix, Stephan B and Sanna, Serena and Ritchie, Marylyn D and Stricker, Bruno H and Stefansson, Kari and Boyer, Laurie A and Cappola, Thomas P and Olsen, Jesper V and Lage, Kasper and Schwartz, Peter J and K{\"a}{\"a}b, Stefan and Chakravarti, Aravinda and Ackerman, Michael J and Pfeufer, Arne and de Bakker, Paul I W and Newton-Cheh, Christopher} } @article {6297, title = {Multilocus genetic risk score associates with ischemic stroke in case-control and prospective cohort studies.}, journal = {Stroke}, volume = {45}, year = {2014}, month = {2014 Feb}, pages = {394-402}, abstract = {

BACKGROUND AND PURPOSE: Genome-wide association studies have revealed multiple common variants associated with known risk factors for ischemic stroke (IS). However, their aggregate effect on risk is uncertain. We aimed to generate a multilocus genetic risk score (GRS) for IS based on genome-wide association studies data from clinical-based samples and to establish its external validity in prospective population-based cohorts.

METHODS: Three thousand five hundred forty-eight clinic-based IS cases and 6399 controls from the Wellcome Trust Case Control Consortium 2 were used for derivation of the GRS. Subjects from the METASTROKE consortium served as a replication sample. The validation sample consisted of 22 751 participants from the Cohorts for Heart and Aging Research in Genomic Epidemiology consortium. We selected variants that had reached genome-wide significance in previous association studies on established risk factors for IS.

RESULTS: A combined GRS for atrial fibrillation, coronary artery disease, hypertension, and systolic blood pressure significantly associated with IS both in the case-control samples and in the prospective population-based studies. Subjects in the top quintile of the combined GRS had >2-fold increased risk of IS compared with subjects in the lowest quintile. Addition of the combined GRS to a simple model based on sex significantly improved the prediction of IS in the combined clinic-based samples but not in the population-based studies, and there was no significant improvement in net reclassification.

CONCLUSIONS: A multilocus GRS based on common variants for established cardiovascular risk factors was significantly associated with IS both in clinic-based samples and in the general population. However, the improvement in clinical risk prediction was found to be small.

}, keywords = {Adult, Aged, Aged, 80 and over, Atrial Fibrillation, Blood Pressure, Brain Ischemia, Case-Control Studies, Cohort Studies, Coronary Artery Disease, Female, Genetic Predisposition to Disease, Genetic Variation, Genome-Wide Association Study, Humans, Hypertension, Male, Middle Aged, Multilocus Sequence Typing, Polymorphism, Single Nucleotide, Population, Prospective Studies, Reproducibility of Results, Risk Assessment, Risk Factors, Sex Factors, Stroke}, issn = {1524-4628}, doi = {10.1161/STROKEAHA.113.002938}, author = {Malik, Rainer and Bevan, Steve and Nalls, Michael A and Holliday, Elizabeth G and Devan, William J and Cheng, Yu-Ching and Ibrahim-Verbaas, Carla A and Verhaaren, Benjamin F J and Bis, Joshua C and Joon, Aron Y and de Stefano, Anita L and Fornage, Myriam and Psaty, Bruce M and Ikram, M Arfan and Launer, Lenore J and van Duijn, Cornelia M and Sharma, Pankaj and Mitchell, Braxton D and Rosand, Jonathan and Meschia, James F and Levi, Christopher and Rothwell, Peter M and Sudlow, Cathie and Markus, Hugh S and Seshadri, Sudha and Dichgans, Martin} } @article {7572, title = {Single-trait and multi-trait genome-wide association analyses identify novel loci for blood pressure in African-ancestry populations.}, journal = {PLoS Genet}, volume = {13}, year = {2017}, month = {2017 May}, pages = {e1006728}, abstract = {

Hypertension is a leading cause of global disease, mortality, and disability. While individuals of African descent suffer a disproportionate burden of hypertension and its complications, they have been underrepresented in genetic studies. To identify novel susceptibility loci for blood pressure and hypertension in people of African ancestry, we performed both single and multiple-trait genome-wide association analyses. We analyzed 21 genome-wide association studies comprised of 31,968 individuals of African ancestry, and validated our results with additional 54,395 individuals from multi-ethnic studies. These analyses identified nine loci with eleven independent variants which reached genome-wide significance (P < 1.25{\texttimes}10-8) for either systolic and diastolic blood pressure, hypertension, or for combined traits. Single-trait analyses identified two loci (TARID/TCF21 and LLPH/TMBIM4) and multiple-trait analyses identified one novel locus (FRMD3) for blood pressure. At these three loci, as well as at GRP20/CDH17, associated variants had alleles common only in African-ancestry populations. Functional annotation showed enrichment for genes expressed in immune and kidney cells, as well as in heart and vascular cells/tissues. Experiments driven by these findings and using angiotensin-II induced hypertension in mice showed altered kidney mRNA expression of six genes, suggesting their potential role in hypertension. Our study provides new evidence for genes related to hypertension susceptibility, and the need to study African-ancestry populations in order to identify biologic factors contributing to hypertension.

}, keywords = {African Americans, Animals, Basic Helix-Loop-Helix Transcription Factors, Blood Pressure, Cadherins, Case-Control Studies, Female, Genetic Loci, Genome-Wide Association Study, Humans, Hypertension, Male, Membrane Proteins, Mice, Multifactorial Inheritance, Polymorphism, Single Nucleotide}, issn = {1553-7404}, doi = {10.1371/journal.pgen.1006728}, author = {Liang, Jingjing and Le, Thu H and Edwards, Digna R Velez and Tayo, Bamidele O and Gaulton, Kyle J and Smith, Jennifer A and Lu, Yingchang and Jensen, Richard A and Chen, Guanjie and Yanek, Lisa R and Schwander, Karen and Tajuddin, Salman M and Sofer, Tamar and Kim, Wonji and Kayima, James and McKenzie, Colin A and Fox, Ervin and Nalls, Michael A and Young, J Hunter and Sun, Yan V and Lane, Jacqueline M and Cechova, Sylvia and Zhou, Jie and Tang, Hua and Fornage, Myriam and Musani, Solomon K and Wang, Heming and Lee, Juyoung and Adeyemo, Adebowale and Dreisbach, Albert W and Forrester, Terrence and Chu, Pei-Lun and Cappola, Anne and Evans, Michele K and Morrison, Alanna C and Martin, Lisa W and Wiggins, Kerri L and Hui, Qin and Zhao, Wei and Jackson, Rebecca D and Ware, Erin B and Faul, Jessica D and Reiner, Alex P and Bray, Michael and Denny, Joshua C and Mosley, Thomas H and Palmas, Walter and Guo, Xiuqing and Papanicolaou, George J and Penman, Alan D and Polak, Joseph F and Rice, Kenneth and Taylor, Ken D and Boerwinkle, Eric and Bottinger, Erwin P and Liu, Kiang and Risch, Neil and Hunt, Steven C and Kooperberg, Charles and Zonderman, Alan B and Laurie, Cathy C and Becker, Diane M and Cai, Jianwen and Loos, Ruth J F and Psaty, Bruce M and Weir, David R and Kardia, Sharon L R and Arnett, Donna K and Won, Sungho and Edwards, Todd L and Redline, Susan and Cooper, Richard S and Rao, D C and Rotter, Jerome I and Rotimi, Charles and Levy, Daniel and Chakravarti, Aravinda and Zhu, Xiaofeng and Franceschini, Nora} }