@article {1288, title = {Enhanced statistical tests for GWAS in admixed populations: assessment using African Americans from CARe and a Breast Cancer Consortium.}, journal = {PLoS Genet}, volume = {7}, year = {2011}, month = {2011 Apr}, pages = {e1001371}, abstract = {

While genome-wide association studies (GWAS) have primarily examined populations of European ancestry, more recent studies often involve additional populations, including admixed populations such as African Americans and Latinos. In admixed populations, linkage disequilibrium (LD) exists both at a fine scale in ancestral populations and at a coarse scale (admixture-LD) due to chromosomal segments of distinct ancestry. Disease association statistics in admixed populations have previously considered SNP association (LD mapping) or admixture association (mapping by admixture-LD), but not both. Here, we introduce a new statistical framework for combining SNP and admixture association in case-control studies, as well as methods for local ancestry-aware imputation. We illustrate the gain in statistical power achieved by these methods by analyzing data of 6,209 unrelated African Americans from the CARe project genotyped on the Affymetrix 6.0 chip, in conjunction with both simulated and real phenotypes, as well as by analyzing the FGFR2 locus using breast cancer GWAS data from 5,761 African-American women. We show that, at typed SNPs, our method yields an 8\% increase in statistical power for finding disease risk loci compared to the power achieved by standard methods in case-control studies. At imputed SNPs, we observe an 11\% increase in statistical power for mapping disease loci when our local ancestry-aware imputation framework and the new scoring statistic are jointly employed. Finally, we show that our method increases statistical power in regions harboring the causal SNP in the case when the causal SNP is untyped and cannot be imputed. Our methods and our publicly available software are broadly applicable to GWAS in admixed populations.

}, keywords = {African Americans, Algorithms, Breast Neoplasms, Chromosome Mapping, Coronary Disease, Diabetes Mellitus, Type 2, Female, Gene Frequency, Genetic Variation, Genetics, Population, Genome, Human, Genome-Wide Association Study, Genotype, Humans, Linkage Disequilibrium, Male, Odds Ratio, Phenotype, Polymorphism, Single Nucleotide, Principal Component Analysis, Receptor, Fibroblast Growth Factor, Type 2, Software}, issn = {1553-7404}, doi = {10.1371/journal.pgen.1001371}, author = {Pasaniuc, Bogdan and Zaitlen, Noah and Lettre, Guillaume and Chen, Gary K and Tandon, Arti and Kao, W H Linda and Ruczinski, Ingo and Fornage, Myriam and Siscovick, David S and Zhu, Xiaofeng and Larkin, Emma and Lange, Leslie A and Cupples, L Adrienne and Yang, Qiong and Akylbekova, Ermeg L and Musani, Solomon K and Divers, Jasmin and Mychaleckyj, Joe and Li, Mingyao and Papanicolaou, George J and Millikan, Robert C and Ambrosone, Christine B and John, Esther M and Bernstein, Leslie and Zheng, Wei and Hu, Jennifer J and Ziegler, Regina G and Nyante, Sarah J and Bandera, Elisa V and Ingles, Sue A and Press, Michael F and Chanock, Stephen J and Deming, Sandra L and Rodriguez-Gil, Jorge L and Palmer, Cameron D and Buxbaum, Sarah and Ekunwe, Lynette and Hirschhorn, Joel N and Henderson, Brian E and Myers, Simon and Haiman, Christopher A and Reich, David and Patterson, Nick and Wilson, James G and Price, Alkes L} } @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 {8014, title = {Common variants associated with plasma triglycerides and risk for coronary artery disease.}, journal = {Nat Genet}, volume = {45}, year = {2013}, month = {2013 Nov}, pages = {1345-52}, abstract = {

Triglycerides are transported in plasma by specific triglyceride-rich lipoproteins; in epidemiological studies, increased triglyceride levels correlate with higher risk for coronary artery disease (CAD). However, it is unclear whether this association reflects causal processes. We used 185 common variants recently mapped for plasma lipids (P < 5 {\texttimes} 10(-8) for each) to examine the role of triglycerides in risk for CAD. First, we highlight loci associated with both low-density lipoprotein cholesterol (LDL-C) and triglyceride levels, and we show that the direction and magnitude of the associations with both traits are factors in determining CAD risk. Second, we consider loci with only a strong association with triglycerides and show that these loci are also associated with CAD. Finally, in a model accounting for effects on LDL-C and/or high-density lipoprotein cholesterol (HDL-C) levels, the strength of a polymorphism{\textquoteright}s effect on triglyceride levels is correlated with the magnitude of its effect on CAD risk. These results suggest that triglyceride-rich lipoproteins causally influence risk for CAD.

}, keywords = {Biological Transport, Cholesterol, HDL, Cholesterol, LDL, Coronary Artery Disease, Humans, Polymorphism, Single Nucleotide, Risk Factors, Triglycerides}, issn = {1546-1718}, doi = {10.1038/ng.2795}, author = {Do, Ron and Willer, Cristen J and Schmidt, Ellen M and Sengupta, Sebanti and Gao, Chi and Peloso, Gina M and Gustafsson, Stefan and Kanoni, Stavroula and Ganna, Andrea and Chen, Jin and Buchkovich, Martin L and Mora, Samia and Beckmann, Jacques S and Bragg-Gresham, Jennifer L and Chang, Hsing-Yi and Demirkan, Ayse and Den Hertog, Heleen M and Donnelly, Louise A and Ehret, Georg B and Esko, T{\~o}nu and Feitosa, Mary F and Ferreira, Teresa and Fischer, Krista and Fontanillas, Pierre and Fraser, Ross M and Freitag, Daniel F and Gurdasani, Deepti and Heikkil{\"a}, Kauko and Hypp{\"o}nen, Elina and Isaacs, Aaron and Jackson, Anne U and Johansson, Asa and Johnson, Toby and Kaakinen, Marika and Kettunen, Johannes and Kleber, Marcus E and Li, Xiaohui and Luan, Jian{\textquoteright}an and Lyytik{\"a}inen, Leo-Pekka and Magnusson, Patrik K E and Mangino, Massimo and Mihailov, Evelin and Montasser, May E and M{\"u}ller-Nurasyid, Martina and Nolte, Ilja M and O{\textquoteright}Connell, Jeffrey R and Palmer, Cameron D and Perola, Markus and Petersen, Ann-Kristin and Sanna, Serena and Saxena, Richa and Service, Susan K and Shah, Sonia and Shungin, Dmitry and Sidore, Carlo and Song, Ci and Strawbridge, Rona J and Surakka, Ida and Tanaka, Toshiko and Teslovich, Tanya M and Thorleifsson, Gudmar and van den Herik, Evita G and Voight, Benjamin F and Volcik, Kelly A and Waite, Lindsay L and Wong, Andrew and Wu, Ying and Zhang, Weihua and Absher, Devin and Asiki, Gershim and Barroso, In{\^e}s and Been, Latonya F and Bolton, Jennifer L and Bonnycastle, Lori L and Brambilla, Paolo and Burnett, Mary S and Cesana, Giancarlo and Dimitriou, Maria and Doney, Alex S F and D{\"o}ring, Angela and Elliott, Paul and Epstein, Stephen E and Eyjolfsson, Gudmundur Ingi and Gigante, Bruna and Goodarzi, Mark O and Grallert, Harald and Gravito, Martha L and Groves, Christopher J and Hallmans, G{\"o}ran and Hartikainen, Anna-Liisa and Hayward, Caroline and Hernandez, Dena and Hicks, Andrew A and Holm, Hilma and Hung, Yi-Jen and Illig, Thomas and Jones, Michelle R and Kaleebu, Pontiano and Kastelein, John J P and Khaw, Kay-Tee and Kim, Eric and Klopp, Norman and Komulainen, Pirjo and Kumari, Meena and Langenberg, Claudia and Lehtim{\"a}ki, Terho and Lin, Shih-Yi and Lindstr{\"o}m, Jaana and Loos, Ruth J F and Mach, Fran{\c c}ois and McArdle, Wendy L and Meisinger, Christa and Mitchell, Braxton D and M{\"u}ller, Gabrielle and Nagaraja, Ramaiah and Narisu, Narisu and Nieminen, Tuomo V M and Nsubuga, Rebecca N and Olafsson, Isleifur and Ong, Ken K and Palotie, Aarno and Papamarkou, Theodore and Pomilla, Cristina and Pouta, Anneli and Rader, Daniel J and Reilly, Muredach P and Ridker, Paul M and Rivadeneira, Fernando and Rudan, Igor and Ruokonen, Aimo and Samani, Nilesh and Scharnagl, Hubert and Seeley, Janet and Silander, Kaisa and Stan{\v c}{\'a}kov{\'a}, Alena and Stirrups, Kathleen and Swift, Amy J and Tiret, Laurence and Uitterlinden, Andr{\'e} G and van Pelt, L Joost and Vedantam, Sailaja and Wainwright, Nicholas and Wijmenga, Cisca and Wild, Sarah H and Willemsen, Gonneke and Wilsgaard, Tom and Wilson, James F and Young, Elizabeth H and Zhao, Jing Hua and Adair, Linda S and Arveiler, Dominique and Assimes, Themistocles L and Bandinelli, Stefania and Bennett, Franklyn and Bochud, Murielle and Boehm, Bernhard O and Boomsma, Dorret I and Borecki, Ingrid B and Bornstein, Stefan R and Bovet, Pascal and Burnier, Michel and Campbell, Harry and Chakravarti, Aravinda and Chambers, John C and Chen, Yii-Der Ida and Collins, Francis S and Cooper, Richard S and Danesh, John and Dedoussis, George and de Faire, Ulf and Feranil, Alan B and Ferrieres, Jean and Ferrucci, Luigi and Freimer, Nelson B and Gieger, Christian and Groop, Leif C and Gudnason, Vilmundur and Gyllensten, Ulf and Hamsten, Anders and Harris, Tamara B and Hingorani, Aroon and Hirschhorn, Joel N and Hofman, Albert and Hovingh, G Kees and Hsiung, Chao Agnes and Humphries, Steve E and Hunt, Steven C and Hveem, Kristian and Iribarren, Carlos and Jarvelin, Marjo-Riitta and Jula, Antti and K{\"a}h{\"o}nen, Mika and Kaprio, Jaakko and Kes{\"a}niemi, Antero and Kivimaki, Mika and Kooner, Jaspal S and Koudstaal, Peter J and Krauss, Ronald M and Kuh, Diana and Kuusisto, Johanna and Kyvik, Kirsten O and Laakso, Markku and Lakka, Timo A and Lind, Lars and Lindgren, Cecilia M and Martin, Nicholas G and M{\"a}rz, Winfried and McCarthy, Mark I and McKenzie, Colin A and Meneton, Pierre and Metspalu, Andres and Moilanen, Leena and Morris, Andrew D and Munroe, Patricia B and Nj{\o}lstad, Inger and Pedersen, Nancy L and Power, Chris and Pramstaller, Peter P and Price, Jackie F and Psaty, Bruce M and Quertermous, Thomas and Rauramaa, Rainer and Saleheen, Danish and Salomaa, Veikko and Sanghera, Dharambir K and Saramies, Jouko and Schwarz, Peter E H and Sheu, Wayne H-H and Shuldiner, Alan R and Siegbahn, Agneta and Spector, Tim D and Stefansson, Kari and Strachan, David P and Tayo, Bamidele O and Tremoli, Elena and Tuomilehto, Jaakko and Uusitupa, Matti and van Duijn, Cornelia M and Vollenweider, Peter and Wallentin, Lars and Wareham, Nicholas J and Whitfield, John B and Wolffenbuttel, Bruce H R and Altshuler, David and Ordovas, Jose M and Boerwinkle, Eric and Palmer, Colin N A and Thorsteinsdottir, Unnur and Chasman, Daniel I and Rotter, Jerome I and Franks, Paul W and Ripatti, Samuli and Cupples, L Adrienne and Sandhu, Manjinder S and Rich, Stephen S and Boehnke, Michael and Deloukas, Panos and Mohlke, Karen L and Ingelsson, Erik and Abecasis, Goncalo R and Daly, Mark J and Neale, Benjamin M and Kathiresan, Sekar} } @article {6154, title = {Discovery and refinement of loci associated with lipid levels.}, journal = {Nat Genet}, volume = {45}, year = {2013}, month = {2013 Nov}, pages = {1274-1283}, abstract = {

Levels of low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, triglycerides and total cholesterol are heritable, modifiable risk factors for coronary artery disease. To identify new loci and refine known loci influencing these lipids, we examined 188,577 individuals using genome-wide and custom genotyping arrays. We identify and annotate 157 loci associated with lipid levels at P < 5 {\texttimes} 10(-8), including 62 loci not previously associated with lipid levels in humans. Using dense genotyping in individuals of European, East Asian, South Asian and African ancestry, we narrow association signals in 12 loci. We find that loci associated with blood lipid levels are often associated with cardiovascular and metabolic traits, including coronary artery disease, type 2 diabetes, blood pressure, waist-hip ratio and body mass index. Our results demonstrate the value of using genetic data from individuals of diverse ancestry and provide insights into the biological mechanisms regulating blood lipids to guide future genetic, biological and therapeutic research.

}, keywords = {African Continental Ancestry Group, Asian Continental Ancestry Group, Cholesterol, HDL, Cholesterol, LDL, Coronary Artery Disease, European Continental Ancestry Group, Genetic Predisposition to Disease, Genome-Wide Association Study, Genotype, Humans, Lipids, Triglycerides}, issn = {1546-1718}, doi = {10.1038/ng.2797}, author = {Willer, Cristen J and Schmidt, Ellen M and Sengupta, Sebanti and Peloso, Gina M and Gustafsson, Stefan and Kanoni, Stavroula and Ganna, Andrea and Chen, Jin and Buchkovich, Martin L and Mora, Samia and Beckmann, Jacques S and Bragg-Gresham, Jennifer L and Chang, Hsing-Yi and Demirkan, Ayse and Den Hertog, Heleen M and Do, Ron and Donnelly, Louise A and Ehret, Georg B and Esko, T{\~o}nu and Feitosa, Mary F and Ferreira, Teresa and Fischer, Krista and Fontanillas, Pierre and Fraser, Ross M and Freitag, Daniel F and Gurdasani, Deepti and Heikkil{\"a}, Kauko and Hypp{\"o}nen, Elina and Isaacs, Aaron and Jackson, Anne U and Johansson, Asa and Johnson, Toby and Kaakinen, Marika and Kettunen, Johannes and Kleber, Marcus E and Li, Xiaohui and Luan, Jian{\textquoteright}an and Lyytik{\"a}inen, Leo-Pekka and Magnusson, Patrik K E and Mangino, Massimo and Mihailov, Evelin and Montasser, May E and M{\"u}ller-Nurasyid, Martina and Nolte, Ilja M and O{\textquoteright}Connell, Jeffrey R and Palmer, Cameron D and Perola, Markus and Petersen, Ann-Kristin and Sanna, Serena and Saxena, Richa and Service, Susan K and Shah, Sonia and Shungin, Dmitry and Sidore, Carlo and Song, Ci and Strawbridge, Rona J and Surakka, Ida and Tanaka, Toshiko and Teslovich, Tanya M and Thorleifsson, Gudmar and van den Herik, Evita G and Voight, Benjamin F and Volcik, Kelly A and Waite, Lindsay L and Wong, Andrew and Wu, Ying and Zhang, Weihua and Absher, Devin and Asiki, Gershim and Barroso, In{\^e}s and Been, Latonya F and Bolton, Jennifer L and Bonnycastle, Lori L and Brambilla, Paolo and Burnett, Mary S and Cesana, Giancarlo and Dimitriou, Maria and Doney, Alex S F and D{\"o}ring, Angela and Elliott, Paul and Epstein, Stephen E and Ingi Eyjolfsson, Gudmundur and Gigante, Bruna and Goodarzi, Mark O and Grallert, Harald and Gravito, Martha L and Groves, Christopher J and Hallmans, G{\"o}ran and Hartikainen, Anna-Liisa and Hayward, Caroline and Hernandez, Dena and Hicks, Andrew A and Holm, Hilma and Hung, Yi-Jen and Illig, Thomas and Jones, Michelle R and Kaleebu, Pontiano and Kastelein, John J P and Khaw, Kay-Tee and Kim, Eric and Klopp, Norman and Komulainen, Pirjo and Kumari, Meena and Langenberg, Claudia and Lehtim{\"a}ki, Terho and Lin, Shih-Yi and Lindstr{\"o}m, Jaana and Loos, Ruth J F and Mach, Fran{\c c}ois and McArdle, Wendy L and Meisinger, Christa and Mitchell, Braxton D and M{\"u}ller, Gabrielle and Nagaraja, Ramaiah and Narisu, Narisu and Nieminen, Tuomo V M and Nsubuga, Rebecca N and Olafsson, Isleifur and Ong, Ken K and Palotie, Aarno and Papamarkou, Theodore and Pomilla, Cristina and Pouta, Anneli and Rader, Daniel J and Reilly, Muredach P and Ridker, Paul M and Rivadeneira, Fernando and Rudan, Igor and Ruokonen, Aimo and Samani, Nilesh and Scharnagl, Hubert and Seeley, Janet and Silander, Kaisa and Stan{\v c}{\'a}kov{\'a}, Alena and Stirrups, Kathleen and Swift, Amy J and Tiret, Laurence and Uitterlinden, Andr{\'e} G and van Pelt, L Joost and Vedantam, Sailaja and Wainwright, Nicholas and Wijmenga, Cisca and Wild, Sarah H and Willemsen, Gonneke and Wilsgaard, Tom and Wilson, James F and Young, Elizabeth H and Zhao, Jing Hua and Adair, Linda S and Arveiler, Dominique and Assimes, Themistocles L and Bandinelli, Stefania and Bennett, Franklyn and Bochud, Murielle and Boehm, Bernhard O and Boomsma, Dorret I and Borecki, Ingrid B and Bornstein, Stefan R and Bovet, Pascal and Burnier, Michel and Campbell, Harry and Chakravarti, Aravinda and Chambers, John C and Chen, Yii-Der Ida and Collins, Francis S and Cooper, Richard S and Danesh, John and Dedoussis, George and de Faire, Ulf and Feranil, Alan B and Ferrieres, Jean and Ferrucci, Luigi and Freimer, Nelson B and Gieger, Christian and Groop, Leif C and Gudnason, Vilmundur and Gyllensten, Ulf and Hamsten, Anders and Harris, Tamara B and Hingorani, Aroon and Hirschhorn, Joel N and Hofman, Albert and Hovingh, G Kees and Hsiung, Chao Agnes and Humphries, Steve E and Hunt, Steven C and Hveem, Kristian and Iribarren, Carlos and Jarvelin, Marjo-Riitta and Jula, Antti and K{\"a}h{\"o}nen, Mika and Kaprio, Jaakko and Kes{\"a}niemi, Antero and Kivimaki, Mika and Kooner, Jaspal S and Koudstaal, Peter J and Krauss, Ronald M and Kuh, Diana and Kuusisto, Johanna and Kyvik, Kirsten O and Laakso, Markku and Lakka, Timo A and Lind, Lars and Lindgren, Cecilia M and Martin, Nicholas G and M{\"a}rz, Winfried and McCarthy, Mark I and McKenzie, Colin A and Meneton, Pierre and Metspalu, Andres and Moilanen, Leena and Morris, Andrew D and Munroe, Patricia B and Nj{\o}lstad, Inger and Pedersen, Nancy L and Power, Chris and Pramstaller, Peter P and Price, Jackie F and Psaty, Bruce M and Quertermous, Thomas and Rauramaa, Rainer and Saleheen, Danish and Salomaa, Veikko and Sanghera, Dharambir K and Saramies, Jouko and Schwarz, Peter E H and Sheu, Wayne H-H and Shuldiner, Alan R and Siegbahn, Agneta and Spector, Tim D and Stefansson, Kari and Strachan, David P and Tayo, Bamidele O and Tremoli, Elena and Tuomilehto, Jaakko and Uusitupa, Matti and van Duijn, Cornelia M and Vollenweider, Peter and Wallentin, Lars and Wareham, Nicholas J and Whitfield, John B and Wolffenbuttel, Bruce H R and Ordovas, Jose M and Boerwinkle, Eric and Palmer, Colin N A and Thorsteinsdottir, Unnur and Chasman, Daniel I and Rotter, Jerome I and Franks, Paul W and Ripatti, Samuli and Cupples, L Adrienne and Sandhu, Manjinder S and Rich, Stephen S and Boehnke, Michael and Deloukas, Panos and Kathiresan, Sekar and Mohlke, Karen L and Ingelsson, Erik and Abecasis, Goncalo R} } @article {6611, title = {A genetic association study of D-dimer levels with 50K SNPs from a candidate gene chip in four ethnic groups.}, journal = {Thromb Res}, volume = {134}, year = {2014}, month = {2014 Aug}, pages = {462-7}, abstract = {

INTRODUCTION: D-dimer, a fibrin degradation product, is related to risk of cardiovascular disease and venous thromboembolism. Genetic determinants of D-dimer are not well characterized; notably, few data have been reported for African American (AA), Asian, and Hispanic populations.

MATERIALS AND METHODS: We conducted a large-scale candidate gene association study to identify variants in genes associated with D-dimer levels in multi-ethnic populations. Four cohorts, comprising 6,848 European Americans (EAs), 2,192 AAs, 670 Asians, and 1,286 Hispanics in the National Heart, Lung, and Blood Institute Candidate Gene Association Resource consortium, were assembled. Approximately 50,000 genotyped single nucleotide polymorphisms (SNPs) in 2,000 cardiovascular disease gene loci were analyzed by linear regression, adjusting for age, sex, study site, and principal components in each cohort and ethnic group. Results across studies were combined within each ethnic group by meta-analysis.

RESULTS: Twelve SNPs in coagulation factor V (F5) and 3 SNPs in the fibrinogen alpha chain (FGA) were significantly associated with D-dimer level in EAs with p<2.0{\texttimes}10(-6). The signal for the most associated SNP in F5 (rs6025, factor V Leiden) was replicated in Hispanics (p=0.023), while that for the top functional SNP in FGA (rs6050) was replicated in AAs (p=0.006). No additional SNPs were significantly associated with D-dimer.

CONCLUSIONS: Our study replicated previously reported associations of D-dimer with SNPs in F5 and FGA in EAs; we demonstrated replication of the association of D-dimer with FGA rs6050 in AAs and the factor V Leiden variant in Hispanics.

}, keywords = {Adult, Aged, Cardiovascular Diseases, Ethnic Groups, Factor V, Female, Fibrin Fibrinogen Degradation Products, Fibrinogen, Genetic Association Studies, Genotype, Humans, Male, Middle Aged, Oligonucleotide Array Sequence Analysis, Polymorphism, Single Nucleotide, Young Adult}, issn = {1879-2472}, doi = {10.1016/j.thromres.2014.05.018}, author = {Weng, Lu-Chen and Tang, Weihong and Rich, Stephen S and Smith, Nicholas L and Redline, Susan and O{\textquoteright}Donnell, Christopher J and Basu, Saonli and Reiner, Alexander P and Delaney, Joseph A and Tracy, Russell P and Palmer, Cameron D and Young, Taylor and Yang, Qiong and Folsom, Aaron R and Cushman, Mary} } @article {6558, title = {Large multiethnic Candidate Gene Study for C-reactive protein levels: identification of a novel association at CD36 in African Americans.}, journal = {Hum Genet}, volume = {133}, year = {2014}, month = {2014 Aug}, pages = {985-95}, abstract = {

C-reactive protein (CRP) is a heritable biomarker of systemic inflammation and a predictor of cardiovascular disease (CVD). Large-scale genetic association studies for CRP have largely focused on individuals of European descent. We sought to uncover novel genetic variants for CRP in a multiethnic sample using the ITMAT Broad-CARe (IBC) array, a custom 50,000 SNP gene-centric array having dense coverage of over 2,000 candidate CVD genes. We performed analyses on 7,570 African Americans (AA) from the Candidate gene Association Resource (CARe) study and race-combined meta-analyses that included 29,939 additional individuals of European descent from CARe, the Women{\textquoteright}s Health Initiative (WHI) and KORA studies. We observed array-wide significance (p < 2.2 {\texttimes} 10(-6)) for four loci in AA, three of which have been reported previously in individuals of European descent (IL6R, p = 2.0 {\texttimes} 10(-6); CRP, p = 4.2 {\texttimes} 10(-71); APOE, p = 1.6 {\texttimes} 10(-6)). The fourth significant locus, CD36 (p = 1.6 {\texttimes} 10(-6)), was observed at a functional variant (rs3211938) that is extremely rare in individuals of European descent. We replicated the CD36 finding (p = 1.8 {\texttimes} 10(-5)) in an independent sample of 8,041 AA women from WHI; a meta-analysis combining the CARe and WHI AA results at rs3211938 reached genome-wide significance (p = 1.5 {\texttimes} 10(-10)). In the race-combined meta-analyses, 13 loci reached significance, including ten (CRP, TOMM40/APOE/APOC1, HNF1A, LEPR, GCKR, IL6R, IL1RN, NLRP3, HNF4A and BAZ1B/BCL7B) previously associated with CRP, and one (ARNTL) previously reported to be nominally associated with CRP. Two novel loci were also detected (RPS6KB1, p = 2.0 {\texttimes} 10(-6); CD36, p = 1.4 {\texttimes} 10(-6)). These results highlight both shared and unique genetic risk factors for CRP in AA compared to populations of European descent.

}, keywords = {Adult, African Americans, Aged, Biomarkers, C-Reactive Protein, Cardiovascular Diseases, CD36 Antigens, Female, Genetic Loci, Genetic Predisposition to Disease, Genetics, Population, Genome-Wide Association Study, Humans, Meta-Analysis as Topic, Middle Aged, Polymorphism, Single Nucleotide, Risk Factors}, issn = {1432-1203}, doi = {10.1007/s00439-014-1439-z}, author = {Ellis, Jaclyn and Lange, Ethan M and Li, Jin and Dupuis, Jos{\'e}e and Baumert, Jens and Walston, Jeremy D and Keating, Brendan J and Durda, Peter and Fox, Ervin R and Palmer, Cameron D and Meng, Yan A and Young, Taylor and Farlow, Deborah N and Schnabel, Renate B and Marzi, Carola S and Larkin, Emma and Martin, Lisa W and Bis, Joshua C and Auer, Paul and Ramachandran, Vasan S and Gabriel, Stacey B and Willis, Monte S and Pankow, James S and Papanicolaou, George J and Rotter, Jerome I and Ballantyne, Christie M and Gross, Myron D and Lettre, Guillaume and Wilson, James G and Peters, Ulrike and Koenig, Wolfgang and Tracy, Russell P and Redline, Susan and Reiner, Alex P and Benjamin, Emelia J and Lange, Leslie A} } @article {7376, title = {Gene-centric approach identifies new and known loci for FVIII activity and VWF antigen levels in European Americans and African Americans.}, journal = {Am J Hematol}, volume = {90}, year = {2015}, month = {2015 Jun}, pages = {534-40}, abstract = {

Coagulation factor VIII and von Willebrand factor (VWF) are key proteins in procoagulant activation. Higher FVIII coagulant activity (FVIII :C) and VWF antigen (VWF :Ag) are risk factors for cardiovascular disease and venous thromboembolism. Beyond associations with ABO blood group, genetic determinants of FVIII and VWF are not well understood, especially in non European-American populations. We performed a genetic association study of FVIII :C and VWF:Ag that assessed 50,000 gene-centric single nucleotide polymorphisms (SNPs) in 18,556 European Americans (EAs) and 5,047 African Americans (AAs) from five population-based cohorts. Previously unreported associations for FVIII :C were identified in both AAs and EAs with KNG1 (most significantly associated SNP rs710446, Ile581Thr, Ile581Thr, P = 5.10 {\texttimes} 10(-7) in EAs and P = 3.88 {\texttimes} 10(-3) in AAs) and VWF rs7962217 (Gly2705Arg,P = 6.30 {\texttimes} 10(-9) in EAs and P = 2.98 {\texttimes} 10(-2) in AAs. Significant associations for FVIII :C were also observed with F8/TMLHE region SNP rs12557310 in EAs (P = 8.02 {\texttimes} 10(-10) ), with VWF rs1800380 in AAs (P = 5.62 {\texttimes} 10(-11) ), and with MAT1A rs2236568 in AAs (P51.69 {\texttimes} 10(-6) ). We replicated previously reported associations of FVIII :C and VWF :Ag with the ABO blood group, VWF rs1063856(Thr789Ala), rs216321 (Ala852Gln), and VWF rs2229446 (Arg2185Gln). Findings from this study expand our understanding of genetic influences for FVIII :C and VWF :Ag in both EAs and AAs.

}, keywords = {Adult, African Americans, Aged, European Continental Ancestry Group, Factor VIII, Female, Genetic Loci, Genome-Wide Association Study, Humans, Male, Methionine Adenosyltransferase, Middle Aged, Polymorphism, Single Nucleotide, Venous Thromboembolism, von Willebrand Factor}, issn = {1096-8652}, doi = {10.1002/ajh.24005}, author = {Tang, Weihong and Cushman, Mary and Green, David and Rich, Stephen S and Lange, Leslie A and Yang, Qiong and Tracy, Russell P and Tofler, Geoffrey H and Basu, Saonli and Wilson, James G and Keating, Brendan J and Weng, Lu-Chen and Taylor, Herman A and Jacobs, David R and Delaney, Joseph A and Palmer, Cameron D and Young, Taylor and Pankow, James S and O{\textquoteright}Donnell, Christopher J and Smith, Nicholas L and Reiner, Alexander P and Folsom, Aaron R} } @article {7558, title = {Multiancestry association study identifies new asthma risk loci that colocalize with immune-cell enhancer marks.}, journal = {Nat Genet}, volume = {50}, year = {2018}, month = {2018 Jan}, pages = {42-53}, abstract = {

We examined common variation in asthma risk by conducting a meta-analysis of worldwide asthma genome-wide association studies (23,948 asthma cases, 118,538 controls) of individuals from ethnically diverse populations. We identified five new asthma loci, found two new associations at two known asthma loci, established asthma associations at two loci previously implicated in the comorbidity of asthma plus hay fever, and confirmed nine known loci. Investigation of pleiotropy showed large overlaps in genetic variants with autoimmune and inflammatory diseases. The enrichment in enhancer marks at asthma risk loci, especially in immune cells, suggested a major role of these loci in the regulation of immunologically related mechanisms.

}, issn = {1546-1718}, doi = {10.1038/s41588-017-0014-7}, author = {Demenais, Florence and Margaritte-Jeannin, Patricia and Barnes, Kathleen C and Cookson, William O C and Altm{\"u}ller, Janine and Ang, Wei and Barr, R Graham and Beaty, Terri H and Becker, Allan B and Beilby, John and Bisgaard, Hans and Bjornsdottir, Unnur Steina and Bleecker, Eugene and B{\o}nnelykke, Klaus and Boomsma, Dorret I and Bouzigon, Emmanuelle and Brightling, Christopher E and Brossard, Myriam and Brusselle, Guy G and Burchard, Esteban and Burkart, Kristin M and Bush, Andrew and Chan-Yeung, Moira and Chung, Kian Fan and Couto Alves, Alexessander and Curtin, John A and Custovic, Adnan and Daley, Denise and de Jongste, Johan C and Del-Rio-Navarro, Blanca E and Donohue, Kathleen M and Duijts, Liesbeth and Eng, Celeste and Eriksson, Johan G and Farrall, Martin and Fedorova, Yuliya and Feenstra, Bjarke and Ferreira, Manuel A and Freidin, Maxim B and Gajdos, Zofia and Gauderman, Jim and Gehring, Ulrike and Geller, Frank and Genuneit, Jon and Gharib, Sina A and Gilliland, Frank and Granell, Raquel and Graves, Penelope E and Gudbjartsson, Daniel F and Haahtela, Tari and Heckbert, Susan R and Heederik, Dick and Heinrich, Joachim and Heli{\"o}vaara, Markku and Henderson, John and Himes, Blanca E and Hirose, Hiroshi and Hirschhorn, Joel N and Hofman, Albert and Holt, Patrick and Hottenga, Jouke and Hudson, Thomas J and Hui, Jennie and Imboden, Medea and Ivanov, Vladimir and Jaddoe, Vincent W V and James, Alan and Janson, Christer and Jarvelin, Marjo-Riitta and Jarvis, Deborah and Jones, Graham and Jonsdottir, Ingileif and Jousilahti, Pekka and Kabesch, Michael and K{\"a}h{\"o}nen, Mika and Kantor, David B and Karunas, Alexandra S and Khusnutdinova, Elza and Koppelman, Gerard H and Kozyrskyj, Anita L and Kreiner, Eskil and Kubo, Michiaki and Kumar, Rajesh and Kumar, Ashish and Kuokkanen, Mikko and Lahousse, Lies and Laitinen, Tarja and Laprise, Catherine and Lathrop, Mark and Lau, Susanne and Lee, Young-Ae and Lehtim{\"a}ki, Terho and Letort, S{\'e}bastien and Levin, Albert M and Li, Guo and Liang, Liming and Loehr, Laura R and London, Stephanie J and Loth, Daan W and Manichaikul, Ani and Marenholz, Ingo and Martinez, Fernando J and Matheson, Melanie C and Mathias, Rasika A and Matsumoto, Kenji and Mbarek, Hamdi and McArdle, Wendy L and Melbye, Mads and Mel{\'e}n, Erik and Meyers, Deborah and Michel, Sven and Mohamdi, Hamida and Musk, Arthur W and Myers, Rachel A and Nieuwenhuis, Maartje A E and Noguchi, Emiko and O{\textquoteright}Connor, George T and Ogorodova, Ludmila M and Palmer, Cameron D and Palotie, Aarno and Park, Julie E and Pennell, Craig E and Pershagen, G{\"o}ran and Polonikov, Alexey and Postma, Dirkje S and Probst-Hensch, Nicole and Puzyrev, Valery P and Raby, Benjamin A and Raitakari, Olli T and Ramasamy, Adaikalavan and Rich, Stephen S and Robertson, Colin F and Romieu, Isabelle and Salam, Muhammad T and Salomaa, Veikko and Schl{\"u}nssen, Vivi and Scott, Robert and Selivanova, Polina A and Sigsgaard, Torben and Simpson, Angela and Siroux, Val{\'e}rie and Smith, Lewis J and Solodilova, Maria and Standl, Marie and Stefansson, Kari and Strachan, David P and Stricker, Bruno H and Takahashi, Atsushi and Thompson, Philip J and Thorleifsson, Gudmar and Thorsteinsdottir, Unnur and Tiesler, Carla M T and Torgerson, Dara G and Tsunoda, Tatsuhiko and Uitterlinden, Andr{\'e} G and van der Valk, Ralf J P and Vaysse, Amaury and Vedantam, Sailaja and von Berg, Andrea and von Mutius, Erika and Vonk, Judith M and Waage, Johannes and Wareham, Nick J and Weiss, Scott T and White, Wendy B and Wickman, Magnus and Widen, Elisabeth and Willemsen, Gonneke and Williams, L Keoki and Wouters, Inge M and Yang, James J and Zhao, Jing Hua and Moffatt, Miriam F and Ober, Carole and Nicolae, Dan L} } @article {8705, title = {Discovery and fine-mapping of height loci via high-density imputation of GWASs in individuals of African ancestry.}, journal = {Am J Hum Genet}, volume = {108}, year = {2021}, month = {2021 Apr 01}, pages = {564-582}, abstract = {

Although many loci have been associated with height in European ancestry populations, very few have been identified in African ancestry individuals. Furthermore, many of the known loci have yet to be generalized to and fine-mapped within a large-scale African ancestry sample. We performed sex-combined and sex-stratified meta-analyses in up to 52,764 individuals with height and genome-wide genotyping data from the African Ancestry Anthropometry Genetics Consortium (AAAGC). We additionally combined our African ancestry meta-analysis results with published European genome-wide association study (GWAS) data. In the African ancestry analyses, we identified three novel loci (SLC4A3, NCOA2, ECD/FAM149B1) in sex-combined results and two loci (CRB1, KLF6) in women only. In the African plus European sex-combined GWAS, we identified an additional three novel loci (RCCD1, G6PC3, CEP95) which were equally driven by AAAGC and European results. Among 39 genome-wide significant signals at known loci, conditioning index SNPs from European studies identified 20 secondary signals. Two of the 20 new secondary signals and none of the 8 novel loci had minor allele frequencies (MAF) < 5\%. Of 802 known European height signals, 643 displayed directionally consistent associations with height, of which 205 were nominally significant (p < 0.05) in the African ancestry sex-combined sample. Furthermore, 148 of 241 loci contained <=20 variants in the credible sets that jointly account for 99\% of the posterior probability of driving the associations. In summary, trans-ethnic meta-analyses revealed novel signals and further improved fine-mapping of putative causal variants in loci shared between African and European ancestry populations.

}, issn = {1537-6605}, doi = {10.1016/j.ajhg.2021.02.011}, author = {Graff, Mariaelisa and Justice, Anne E and Young, Kristin L and Marouli, Eirini and Zhang, Xinruo and Fine, Rebecca S and Lim, Elise and Buchanan, Victoria and Rand, Kristin and Feitosa, Mary F and Wojczynski, Mary K and Yanek, Lisa R and Shao, Yaming and Rohde, Rebecca and Adeyemo, Adebowale A and Aldrich, Melinda C and Allison, Matthew A and Ambrosone, Christine B and Ambs, Stefan and Amos, Christopher and Arnett, Donna K and Atwood, Larry and Bandera, Elisa V and Bartz, Traci and Becker, Diane M and Berndt, Sonja I and Bernstein, Leslie and Bielak, Lawrence F and Blot, William J and Bottinger, Erwin P and Bowden, Donald W and Bradfield, Jonathan P and Brody, Jennifer A and Broeckel, Ulrich and Burke, Gregory and Cade, Brian E and Cai, Qiuyin and Caporaso, Neil and Carlson, Chris and Carpten, John and Casey, Graham and Chanock, Stephen J and Chen, Guanjie and Chen, Minhui and Chen, Yii-der I and Chen, Wei-Min and Chesi, Alessandra and Chiang, Charleston W K and Chu, Lisa and Coetzee, Gerry A and Conti, David V and Cooper, Richard S and Cushman, Mary and Demerath, Ellen and Deming, Sandra L and Dimitrov, Latchezar and Ding, Jingzhong and Diver, W Ryan and Duan, Qing and Evans, Michele K and Falusi, Adeyinka G and Faul, Jessica D and Fornage, Myriam and Fox, Caroline and Freedman, Barry I and Garcia, Melissa and Gillanders, Elizabeth M and Goodman, Phyllis and Gottesman, Omri and Grant, Struan F A and Guo, Xiuqing and Hakonarson, Hakon and Haritunians, Talin and Harris, Tamara B and Harris, Curtis C and Henderson, Brian E and Hennis, Anselm and Hernandez, Dena G and Hirschhorn, Joel N and McNeill, Lorna Haughton and Howard, Timothy D and Howard, Barbara and Hsing, Ann W and Hsu, Yu-Han H and Hu, Jennifer J and Huff, Chad D and Huo, Dezheng and Ingles, Sue A and Irvin, Marguerite R and John, Esther M and Johnson, Karen C and Jordan, Joanne M and Kabagambe, Edmond K and Kang, Sun J and Kardia, Sharon L and Keating, Brendan J and Kittles, Rick A and Klein, Eric A and Kolb, Suzanne and Kolonel, Laurence N and Kooperberg, Charles and Kuller, Lewis and Kutlar, Abdullah and Lange, Leslie and Langefeld, Carl D and Le Marchand, Lo{\"\i}c and Leonard, Hampton and Lettre, Guillaume and Levin, Albert M and Li, Yun and Li, Jin and Liu, Yongmei and Liu, Youfang and Liu, Simin and Lohman, Kurt and Lotay, Vaneet and Lu, Yingchang and Maixner, William and Manson, JoAnn E and McKnight, Barbara and Meng, Yan and Monda, Keri L and Monroe, Kris and Moore, Jason H and Mosley, Thomas H and Mudgal, Poorva and Murphy, Adam B and Nadukuru, Rajiv and Nalls, Mike A and Nathanson, Katherine L and Nayak, Uma and N{\textquoteright}diaye, Amidou and Nemesure, Barbara and Neslund-Dudas, Christine and Neuhouser, Marian L and Nyante, Sarah and Ochs-Balcom, Heather and Ogundiran, Temidayo O and Ogunniyi, Adesola and Ojengbede, Oladosu and Okut, Hayrettin and Olopade, Olufunmilayo I and Olshan, Andrew and Padhukasahasram, Badri and Palmer, Julie and Palmer, Cameron D and Palmer, Nicholette D and Papanicolaou, George and Patel, Sanjay R and Pettaway, Curtis A and Peyser, Patricia A and Press, Michael F and Rao, D C and Rasmussen-Torvik, Laura J and Redline, Susan and Reiner, Alex P and Rhie, Suhn K and Rodriguez-Gil, Jorge L and Rotimi, Charles N and Rotter, Jerome I and Ruiz-Narvaez, Edward A and Rybicki, Benjamin A and Salako, Babatunde and Sale, Mich{\`e}le M and Sanderson, Maureen and Schadt, Eric and Schreiner, Pamela J and Schurmann, Claudia and Schwartz, Ann G and Shriner, Daniel A and Signorello, Lisa B and Singleton, Andrew B and Siscovick, David S and Smith, Jennifer A and Smith, Shad and Speliotes, Elizabeth and Spitz, Margaret and Stanford, Janet L and Stevens, Victoria L and Stram, Alex and Strom, Sara S and Sucheston, Lara and Sun, Yan V and Tajuddin, Salman M and Taylor, Herman and Taylor, Kira and Tayo, Bamidele O and Thun, Michael J and Tucker, Margaret A and Vaidya, Dhananjay and Van Den Berg, David J and Vedantam, Sailaja and Vitolins, Mara and Wang, Zhaoming and Ware, Erin B and Wassertheil-Smoller, Sylvia and Weir, David R and Wiencke, John K and Williams, Scott M and Williams, L Keoki and Wilson, James G and Witte, John S and Wrensch, Margaret and Wu, Xifeng and Yao, Jie and Zakai, Neil and Zanetti, Krista and Zemel, Babette S and Zhao, Wei and Zhao, Jing Hua and Zheng, Wei and Zhi, Degui and Zhou, Jie and Zhu, Xiaofeng and Ziegler, Regina G and Zmuda, Joe and Zonderman, Alan B and Psaty, Bruce M and Borecki, Ingrid B and Cupples, L Adrienne and Liu, Ching-Ti and Haiman, Christopher A and Loos, Ruth and Ng, Maggie C Y and North, Kari E} }