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1. Shared genetic risk between anorexia nervosa and cardiovascular disease events: Evidence from genome‐wide association studies

Author: Baiyu Qi, Mariaelisa Graff, Eating Disorders Working Group of the Psychiatric Genomics Consortium, Cynthia M Bulik, Kari E North, and Melissa A Munn‐Chernoff
Subjects: genetics, heart disease, medical complications, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Abstract: Abstract Objective Cardiovascular complications occur in up to 80% of patients with anorexia nervosa (AN), yet the underlying mechanisms warrant further investigation. We assessed the genetic correlation (rg) between AN and cardiovascular disease (CVD) events to inform whether elevated cardiovascular risk among individuals with AN is due to shared genetic effects. Method We used genome‐wide association study summary statistics for AN (N = 72,517), AN with binge eating (N = 12,630), AN without binge eating (N = 12,516), and six CVD events (N = 390,142 to 977,323). We calculated the rgs via linkage disequilibrium score regression and corrected for multiple testing using false discovery rate. Results Significant rgs emerged between AN with heart failure (rg = –0.11, SE = 0.05, q = .04) and myocardial infarction (rg = –0.10, SE = 0.03, q = .01). AN with binge eating had a significant rg with myocardial infarction (rg = –0.15, SE = 0.06, q = .02). No significant rg emerged between AN without binge eating and any CVD event. Discussion Some loci affect the liability to AN and CVD in opposite directions and the shared genetic effects may not be consistent across all CVD events. Our results provide further evidence suggesting that the elevated cardiovascular risk in AN may not be due to shared genetic underpinnings, but more likely a downstream consequence of the disease.
Published: 2024
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2. Ancestral diversity in lipoprotein(a) studies helps address evidence gaps

Author: Adolfo Correa, Annie Green Howard, Kari E North, Jerome I Rotter, Stephen S Rich, Ulrike Peters, Zhe Wang, Michael Y Tsai, Penny Gordon-Larsen, Christie Ballantyne, Shia T Kent, Ruth J F Loos, Christy L Avery, Xiuqing Guo, Jie Yao, Yao Hu, Mariaelisa Graff, Paul S de Vries, Keri L Monda, Moa P Lee, Sofia F Dimos, Laura M Raffield, Anna F Ballou, Carolina G Downie, Christopher H Arehart, Zhaohui Du, Christopher R Gignoux, Jeffrey Haessler, Helina Kassahun, J Antonio G Lopez, Michael H Preuss, Shannon L Rhodes, Rina Yarosh, and Charles L Kooperberg
Subjects: Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract: Introduction The independent and causal cardiovascular disease risk factor lipoprotein(a) (Lp(a)) is elevated in >1.5 billion individuals worldwide, but studies have prioritised European populations.Methods Here, we examined how ancestrally diverse studies could clarify Lp(a)’s genetic architecture, inform efforts examining application of Lp(a) polygenic risk scores (PRS), enable causal inference and identify unexpected Lp(a) phenotypic effects using data from African (n=25 208), East Asian (n=2895), European (n=362 558), South Asian (n=8192) and Hispanic/Latino (n=8946) populations.Results Fourteen genome-wide significant loci with numerous population specific signals of large effect were identified that enabled construction of Lp(a) PRS of moderate (R2=15% in East Asians) to high (R2=50% in Europeans) accuracy. For all populations, PRS showed promise as a ‘rule out’ for elevated Lp(a) because certainty of assignment to the low-risk threshold was high (88.0%–99.9%) across PRS thresholds (80th–99th percentile). Causal effects of increased Lp(a) with increased glycated haemoglobin were estimated for Europeans (p value =1.4×10−6), although inverse effects in Africans and East Asians suggested the potential for heterogeneous causal effects. Finally, Hispanic/Latinos were the only population in which known associations with coronary atherosclerosis and ischaemic heart disease were identified in external testing of Lp(a) PRS phenotypic effects.Conclusions Our results emphasise the merits of prioritising ancestral diversity when addressing Lp(a) evidence gaps.
Published: 2023
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3. A multi-population phenome-wide association study of genetically-predicted height in the Million Veteran Program.

Author: Sridharan Raghavan, Jie Huang, Catherine Tcheandjieu, Jennifer E Huffman, Elizabeth Litkowski, Chang Liu, Yuk-Lam A Ho, Haley Hunter-Zinck, Hongyu Zhao, Eirini Marouli, Kari E North, VA Million Veteran Program, Ethan Lange, Leslie A Lange, Benjamin F Voight, J Michael Gaziano, Saiju Pyarajan, Elizabeth R Hauser, Philip S Tsao, Peter W F Wilson, Kyong-Mi Chang, Kelly Cho, Christopher J O'Donnell, Yan V Sun, and Themistocles L Assimes
Subjects: Genetics, QH426-470
Abstract: BackgroundHeight has been associated with many clinical traits but whether such associations are causal versus secondary to confounding remains unclear in many cases. To systematically examine this question, we performed a Mendelian Randomization-Phenome-wide association study (MR-PheWAS) using clinical and genetic data from a national healthcare system biobank.Methods and findingsAnalyses were performed using data from the US Veterans Affairs (VA) Million Veteran Program in non-Hispanic White (EA, n = 222,300) and non-Hispanic Black (AA, n = 58,151) adults in the US. We estimated height genetic risk based on 3290 height-associated variants from a recent European-ancestry genome-wide meta-analysis. We compared associations of measured and genetically-predicted height with phenome-wide traits derived from the VA electronic health record, adjusting for age, sex, and genetic principal components. We found 345 clinical traits associated with measured height in EA and an additional 17 in AA. Of these, 127 were associated with genetically-predicted height at phenome-wide significance in EA and 2 in AA. These associations were largely independent from body mass index. We confirmed several previously described MR associations between height and cardiovascular disease traits such as hypertension, hyperlipidemia, coronary heart disease (CHD), and atrial fibrillation, and further uncovered MR associations with venous circulatory disorders and peripheral neuropathy in the presence and absence of diabetes. As a number of traits associated with genetically-predicted height frequently co-occur with CHD, we evaluated effect modification by CHD status of genetically-predicted height associations with risk factors for and complications of CHD. We found modification of effects of MR associations by CHD status for atrial fibrillation/flutter but not for hypertension, hyperlipidemia, or venous circulatory disorders.ConclusionsWe conclude that height may be an unrecognized but biologically plausible risk factor for several common conditions in adults. However, more studies are needed to reliably exclude horizontal pleiotropy as a driving force behind at least some of the MR associations observed in this study.
Published: 2022
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4. Associations of autozygosity with a broad range of human phenotypes

Author: David W Clark, Yukinori Okada, Kristjan H S Moore, Dan Mason, Nicola Pirastu, Ilaria Gandin, Hannele Mattsson, Catriona L K Barnes, Kuang Lin, Jing Hua Zhao, Patrick Deelen, Rebecca Rohde, Claudia Schurmann, Xiuqing Guo, Franco Giulianini, Weihua Zhang, Carolina Medina-Gomez, Robert Karlsson, Yanchun Bao, Traci M Bartz, Clemens Baumbach, Ginevra Biino, Matthew J Bixley, Marco Brumat, Jin-Fang Chai, Tanguy Corre, Diana L Cousminer, Annelot M Dekker, David A Eccles, Kristel R van Eijk, Christian Fuchsberger, He Gao, Marine Germain, Scott D Gordon, Hugoline G de Haan, Sarah E Harris, Edith Hofer, Alicia Huerta-Chagoya, Catherine Igartua, Iris E Jansen, Yucheng Jia, Tim Kacprowski, Torgny Karlsson, Marcus E Kleber, Shengchao Alfred Li, Ruifang Li-Gao, Anubha Mahajan, Koichi Matsuda, Karina Meidtner, Weihua Meng, May E Montasser, Peter J van der Most, Matthias Munz, Teresa Nutile, Teemu Palviainen, Gauri Prasad, Rashmi B Prasad, Tallapragada Divya Sri Priyanka, Federica Rizzi, Erika Salvi, Bishwa R Sapkota, Daniel Shriner, Line Skotte, Melissa C Smart, Albert Vernon Smith, Ashley van der Spek, Cassandra N Spracklen, Rona J Strawbridge, Salman M Tajuddin, Stella Trompet, Constance Turman, Niek Verweij, Clara Viberti, Lihua Wang, Helen R Warren, Robyn E Wootton, Lisa R Yanek, Jie Yao, Noha A Yousri, Wei Zhao, Adebowale A Adeyemo, Saima Afaq, Carlos Alberto Aguilar-Salinas, Masato Akiyama, Matthew L Albert, Matthew A Allison, Maris Alver, Tin Aung, Fereidoun Azizi, Amy R Bentley, Heiner Boeing, Eric Boerwinkle, Judith B Borja, Gert J de Borst, Erwin P Bottinger, Linda Broer, Harry Campbell, Stephen Chanock, Miao-Li Chee, Guanjie Chen, Yii-Der I Chen, Zhengming Chen, Yen-Feng Chiu, Massimiliano Cocca, Francis S Collins, Maria Pina Concas, Janie Corley, Giovanni Cugliari, Rob M van Dam, Anna Damulina, Maryam S Daneshpour, Felix R Day, Graciela E Delgado, Klodian Dhana, Alexander S F Doney, Marcus Dörr, Ayo P Doumatey, Nduna Dzimiri, S Sunna Ebenesersdóttir, Joshua Elliott, Paul Elliott, Ralf Ewert, Janine F Felix, Krista Fischer, Barry I Freedman, Giorgia Girotto, Anuj Goel, Martin Gögele, Mark O Goodarzi, Mariaelisa Graff, Einat Granot-Hershkovitz, Francine Grodstein, Simonetta Guarrera, Daniel F Gudbjartsson, Kamran Guity, Bjarni Gunnarsson, Yu Guo, Saskia P Hagenaars, Christopher A Haiman, Avner Halevy, Tamara B Harris, Mehdi Hedayati, David A van Heel, Makoto Hirata, Imo Höfer, Chao Agnes Hsiung, Jinyan Huang, Yi-Jen Hung, M Arfan Ikram, Anuradha Jagadeesan, Pekka Jousilahti, Yoichiro Kamatani, Masahiro Kanai, Nicola D Kerrison, Thorsten Kessler, Kay-Tee Khaw, Chiea Chuen Khor, Dominique P V de Kleijn, Woon-Puay Koh, Ivana Kolcic, Peter Kraft, Bernhard K Krämer, Zoltán Kutalik, Johanna Kuusisto, Claudia Langenberg, Lenore J Launer, Deborah A Lawlor, I-Te Lee, Wen-Jane Lee, Markus M Lerch, Liming Li, Jianjun Liu, Marie Loh, Stephanie J London, Stephanie Loomis, Yingchang Lu, Jian’an Luan, Reedik Mägi, Ani W Manichaikul, Paolo Manunta, Gísli Másson, Nana Matoba, Xue W Mei, Christa Meisinger, Thomas Meitinger, Massimo Mezzavilla, Lili Milani, Iona Y Millwood, Yukihide Momozawa, Amy Moore, Pierre-Emmanuel Morange, Hortensia Moreno-Macías, Trevor A Mori, Alanna C Morrison, Taulant Muka, Yoshinori Murakami, Alison D Murray, Renée de Mutsert, Josyf C Mychaleckyj, Mike A Nalls, Matthias Nauck, Matt J Neville, Ilja M Nolte, Ken K Ong, Lorena Orozco, Sandosh Padmanabhan, Gunnar Pálsson, James S Pankow, Cristian Pattaro, Alison Pattie, Ozren Polasek, Neil Poulter, Peter P Pramstaller, Lluis Quintana-Murci, Katri Räikkönen, Sarju Ralhan, Dabeeru C Rao, Wouter van Rheenen, Stephen S Rich, Paul M Ridker, Cornelius A Rietveld, Antonietta Robino, Frank J A van Rooij, Daniela Ruggiero, Yasaman Saba, Charumathi Sabanayagam, Maria Sabater-Lleal, Cinzia Felicita Sala, Veikko Salomaa, Kevin Sandow, Helena Schmidt, Laura J Scott, William R Scott, Bahareh Sedaghati-Khayat, Bengt Sennblad, Jessica van Setten, Peter J Sever, Wayne H-H Sheu, Yuan Shi, Smeeta Shrestha, Sharvari Rahul Shukla, Jon K Sigurdsson, Timo Tonis Sikka, Jai Rup Singh, Blair H Smith, Alena Stančáková, Alice Stanton, John M Starr, Lilja Stefansdottir, Leon Straker, Patrick Sulem, Gardar Sveinbjornsson, Morris A Swertz, Adele M Taylor, Kent D Taylor, Natalie Terzikhan, Yih-Chung Tham, Gudmar Thorleifsson, Unnur Thorsteinsdottir, Annika Tillander, Russell P Tracy, Teresa Tusié-Luna, Ioanna Tzoulaki, Simona Vaccargiu, Jagadish Vangipurapu, Jan H Veldink, Veronique Vitart, Uwe Völker, Eero Vuoksimaa, Salma M Wakil, Melanie Waldenberger, Gurpreet S Wander, Ya Xing Wang, Nicholas J Wareham, Sarah Wild, Chittaranjan S Yajnik, Jian-Min Yuan, Lingyao Zeng, Liang Zhang, Jie Zhou, Najaf Amin, Folkert W Asselbergs, Stephan J L Bakker, Diane M Becker, Benjamin Lehne, David A Bennett, Leonard H van den Berg, Sonja I Berndt, Dwaipayan Bharadwaj, Lawrence F Bielak, Murielle Bochud, Mike Boehnke, Claude Bouchard, Jonathan P Bradfield, Jennifer A Brody, Archie Campbell, Shai Carmi, Mark J Caulfield, David Cesarini, John C Chambers, Giriraj Ratan Chandak, Ching-Yu Cheng, Marina Ciullo, Marilyn Cornelis, Daniele Cusi, George Davey Smith, Ian J Deary, Rajkumar Dorajoo, Cornelia M van Duijn, David Ellinghaus, Jeanette Erdmann, Johan G Eriksson, Evangelos Evangelou, Michele K Evans, Jessica D Faul, Bjarke Feenstra, Mary Feitosa, Sylvain Foisy, Andre Franke, Yechiel Friedlander, Paolo Gasparini, Christian Gieger, Clicerio Gonzalez, Philippe Goyette, Struan F A Grant, Lyn R Griffiths, Leif Groop, Vilmundur Gudnason, Ulf Gyllensten, Hakon Hakonarson, Anders Hamsten, Pim van der Harst, Chew-Kiat Heng, Andrew A Hicks, Hagit Hochner, Heikki Huikuri, Steven C Hunt, Vincent W V Jaddoe, Philip L De Jager, Magnus Johannesson, Åsa Johansson, Jost B Jonas, J Wouter Jukema, Juhani Junttila, Jaakko Kaprio, Sharon L. R. Kardia, Fredrik Karpe, Meena Kumari, Markku Laakso, Sander W van der Laan, Jari Lahti, Matthias Laudes, Rodney A Lea, Wolfgang Lieb, Thomas Lumley, Nicholas G Martin, Winfried März, Giuseppe Matullo, Mark I McCarthy, Sarah E Medland, Tony R Merriman, Andres Metspalu, Brian F Meyer, Karen L Mohlke, Grant W Montgomery, Dennis Mook-Kanamori, Patricia B Munroe, Kari E North, Dale R Nyholt, Jeffery R O’connell, Carole Ober, Albertine J Oldehinkel, Walter Palmas, Colin Palmer, Gerard G Pasterkamp, Etienne Patin, Craig E Pennell, Louis Perusse, Patricia A Peyser, Mario Pirastu, Tinca J. C. Polderman, David J Porteous, Danielle Posthuma, Bruce M Psaty, John D Rioux, Fernando Rivadeneira, Charles Rotimi, Jerome I Rotter, Igor Rudan, Hester M Den Ruijter, Dharambir K Sanghera, Naveed Sattar, Reinhold Schmidt, Matthias B Schulze, Heribert Schunkert, Robert A Scott, Alan R Shuldiner, Xueling Sim, Neil Small, Jennifer A Smith, Nona Sotoodehnia, E-Shyong Tai, Alexander Teumer, Nicholas J Timpson, Daniela Toniolo, David-Alexandre Tregouet, Tiinamaija Tuomi, Peter Vollenweider, Carol A Wang, David R Weir, John B Whitfield, Cisca Wijmenga, Tien-Yin Wong, John Wright, Jingyun Yang, Lei Yu, Babette S Zemel, Alan B Zonderman, Markus Perola, Patrik K. E. Magnusson, André G Uitterlinden, Jaspal S Kooner, Daniel I Chasman, Ruth J. F. Loos, Nora Franceschini, Lude Franke, Chris S Haley, Caroline Hayward, Robin G Walters, John R. B. Perry, Tōnu Esko, Agnar Helgason, Kari Stefansson, Peter K Joshi, Michiaki Kubo, and James F Wilson
Subjects: Science
Abstract: Inbreeding depression has been observed in many different species, but in humans a systematic analysis has been difficult so far. Here, analysing more than 1.3 million individuals, the authors show that a genomic inbreeding coefficient (FROH) is associated with disadvantageous outcomes in 32 out of 100 traits tested.
Published: 2019
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5. Sociodemographic predictors of early postnatal growth: evidence from a Chilean infancy cohort

Author: Annie Green Howard, Kari E North, Estela Blanco, Sheila Gahagan, Betsy Lozoff, Ann Von Holle, Raquel A Burrows, Anne Justice, Misa Graff, and Venkata Saroja Voruganti
Subjects: Medicine
Abstract: Objectives Infant anthropometric growth varies across socioeconomic factors, including maternal education and income, and may serve as an indicator of environmental influences in early life with long-term health consequences. Previous research has identified sociodemographic gradients in growth with a focus on the first year and beyond, but estimates are sparse for growth before 6 months. Thus, our objective was to examine the relationship between sociodemographic factors and infant growth patterns between birth and 5 months of age.Design Prospective cohort study.Settings Low-income to middle-income neighbourhoods in Santiago, Chile (1991–1996).Participants 1412 participants from a randomised iron-deficiency anaemia preventive trial in healthy infants.Main outcome measures Longitudinal anthropometrics including monthly weight (kg), length (cm) and weight-for-length (WFL) values. For each measure, we estimated three individual-level growth parameters (size, timing and velocity) from SuperImposition by Translation and Rotation models. Size and timing changes represent vertical and horizontal growth curve shifts, respectively, and velocity change represents growth rate shifts. We estimated the linear association between growth parameters and gestational age, maternal age, education and socioeconomic position (SEP).Results Lower SEP was associated with a slower linear (length) velocity growth parameter (−0.22, 95% CI –0.31 to –0.13)—outcome units are per cent change in velocity from the average growth curve. Lower SEP was associated with later WFL growth timing as demonstrated through the tempo growth parameter for females (0.25, 95% CI 0.05 to 0.42)—outcome units are shifts in days from the average growth curve. We found no evidence of associations between SEP and the weight size, timing or velocity growth rate parameters.Conclusion Previous research on growth in older infants and children shows associations between lower SEP with slower length velocity. We found evidence supporting this association in the first 5 months of life, which may inform age-specific prevention efforts aimed at infant length growth.
Published: 2020
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6. Minority-centric meta-analyses of blood lipid levels identify novel loci in the Population Architecture using Genomics and Epidemiology (PAGE) study.

Author: Yao Hu, Mariaelisa Graff, Jeffrey Haessler, Steven Buyske, Stephanie A Bien, Ran Tao, Heather M Highland, Katherine K Nishimura, Niha Zubair, Yingchang Lu, Marie Verbanck, Austin T Hilliard, Derek Klarin, Scott M Damrauer, Yuk-Lam Ho, VA Million Veteran Program, Peter W F Wilson, Kyong-Mi Chang, Philip S Tsao, Kelly Cho, Christopher J O'Donnell, Themistocles L Assimes, Lauren E Petty, Jennifer E Below, Ozan Dikilitas, Daniel J Schaid, Matthew L Kosel, Iftikhar J Kullo, Laura J Rasmussen-Torvik, Gail P Jarvik, Qiping Feng, Wei-Qi Wei, Eric B Larson, Frank D Mentch, Berta Almoguera, Patrick M Sleiman, Laura M Raffield, Adolfo Correa, Lisa W Martin, Martha Daviglus, Tara C Matise, Jose Luis Ambite, Christopher S Carlson, Ron Do, Ruth J F Loos, Lynne R Wilkens, Loic Le Marchand, Chris Haiman, Daniel O Stram, Lucia A Hindorff, Kari E North, Charles Kooperberg, Iona Cheng, and Ulrike Peters
Subjects: Genetics, QH426-470
Abstract: Lipid levels are important markers for the development of cardio-metabolic diseases. Although hundreds of associated loci have been identified through genetic association studies, the contribution of genetic factors to variation in lipids is not fully understood, particularly in U.S. minority groups. We performed genome-wide association analyses for four lipid traits in over 45,000 ancestrally diverse participants from the Population Architecture using Genomics and Epidemiology (PAGE) Study, followed by a meta-analysis with several European ancestry studies. We identified nine novel lipid loci, five of which showed evidence of replication in independent studies. Furthermore, we discovered one novel gene in a PrediXcan analysis, minority-specific independent signals at eight previously reported loci, and potential functional variants at two known loci through fine-mapping. Systematic examination of known lipid loci revealed smaller effect estimates in African American and Hispanic ancestry populations than those in Europeans, and better performance of polygenic risk scores based on minority-specific effect estimates. Our findings provide new insight into the genetic architecture of lipid traits and highlight the importance of conducting genetic studies in diverse populations in the era of precision medicine.
Published: 2020
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7. Use of >100,000 NHLBI Trans-Omics for Precision Medicine (TOPMed) Consortium whole genome sequences improves imputation quality and detection of rare variant associations in admixed African and Hispanic/Latino populations.

Author: Madeline H Kowalski, Huijun Qian, Ziyi Hou, Jonathan D Rosen, Amanda L Tapia, Yue Shan, Deepti Jain, Maria Argos, Donna K Arnett, Christy Avery, Kathleen C Barnes, Lewis C Becker, Stephanie A Bien, Joshua C Bis, John Blangero, Eric Boerwinkle, Donald W Bowden, Steve Buyske, Jianwen Cai, Michael H Cho, Seung Hoan Choi, Hélène Choquet, L Adrienne Cupples, Mary Cushman, Michelle Daya, Paul S de Vries, Patrick T Ellinor, Nauder Faraday, Myriam Fornage, Stacey Gabriel, Santhi K Ganesh, Misa Graff, Namrata Gupta, Jiang He, Susan R Heckbert, Bertha Hidalgo, Chani J Hodonsky, Marguerite R Irvin, Andrew D Johnson, Eric Jorgenson, Robert Kaplan, Sharon L R Kardia, Tanika N Kelly, Charles Kooperberg, Jessica A Lasky-Su, Ruth J F Loos, Steven A Lubitz, Rasika A Mathias, Caitlin P McHugh, Courtney Montgomery, Jee-Young Moon, Alanna C Morrison, Nicholette D Palmer, Nathan Pankratz, George J Papanicolaou, Juan M Peralta, Patricia A Peyser, Stephen S Rich, Jerome I Rotter, Edwin K Silverman, Jennifer A Smith, Nicholas L Smith, Kent D Taylor, Timothy A Thornton, Hemant K Tiwari, Russell P Tracy, Tao Wang, Scott T Weiss, Lu-Chen Weng, Kerri L Wiggins, James G Wilson, Lisa R Yanek, Sebastian Zöllner, Kari E North, Paul L Auer, NHLBI Trans-Omics for Precision Medicine (TOPMed) Consortium, TOPMed Hematology & Hemostasis Working Group, Laura M Raffield, Alexander P Reiner, and Yun Li
Subjects: Genetics, QH426-470
Abstract: Most genome-wide association and fine-mapping studies to date have been conducted in individuals of European descent, and genetic studies of populations of Hispanic/Latino and African ancestry are limited. In addition, these populations have more complex linkage disequilibrium structure. In order to better define the genetic architecture of these understudied populations, we leveraged >100,000 phased sequences available from deep-coverage whole genome sequencing through the multi-ethnic NHLBI Trans-Omics for Precision Medicine (TOPMed) program to impute genotypes into admixed African and Hispanic/Latino samples with genome-wide genotyping array data. We demonstrated that using TOPMed sequencing data as the imputation reference panel improves genotype imputation quality in these populations, which subsequently enhanced gene-mapping power for complex traits. For rare variants with minor allele frequency (MAF) < 0.5%, we observed a 2.3- to 6.1-fold increase in the number of well-imputed variants, with 11-34% improvement in average imputation quality, compared to the state-of-the-art 1000 Genomes Project Phase 3 and Haplotype Reference Consortium reference panels. Impressively, even for extremely rare variants with minor allele count 86%. Subsequent association analyses of TOPMed reference panel-imputed genotype data with hematological traits (hemoglobin (HGB), hematocrit (HCT), and white blood cell count (WBC)) in ~21,600 African-ancestry and ~21,700 Hispanic/Latino individuals identified associations with two rare variants in the HBB gene (rs33930165 with higher WBC [p = 8.8x10-15] in African populations, rs11549407 with lower HGB [p = 1.5x10-12] and HCT [p = 8.8x10-10] in Hispanics/Latinos). By comparison, neither variant would have been genome-wide significant if either 1000 Genomes Project Phase 3 or Haplotype Reference Consortium reference panels had been used for imputation. Our findings highlight the utility of the TOPMed imputation reference panel for identification of novel rare variant associations not previously detected in similarly sized genome-wide studies of under-represented African and Hispanic/Latino populations.
Published: 2019
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8. A phenome-wide association study (PheWAS) in the Population Architecture using Genomics and Epidemiology (PAGE) study reveals potential pleiotropy in African Americans.

Author: Sarah A Pendergrass, Steven Buyske, Janina M Jeff, Alex Frase, Scott Dudek, Yuki Bradford, Jose-Luis Ambite, Christy L Avery, Petra Buzkova, Ewa Deelman, Megan D Fesinmeyer, Christopher Haiman, Gerardo Heiss, Lucia A Hindorff, Chun-Nan Hsu, Rebecca D Jackson, Yi Lin, Loic Le Marchand, Tara C Matise, Kristine R Monroe, Larry Moreland, Kari E North, Sungshim L Park, Alex Reiner, Robert Wallace, Lynne R Wilkens, Charles Kooperberg, Marylyn D Ritchie, and Dana C Crawford
Subjects: Medicine, Science
Abstract: We performed a hypothesis-generating phenome-wide association study (PheWAS) to identify and characterize cross-phenotype associations, where one SNP is associated with two or more phenotypes, between thousands of genetic variants assayed on the Metabochip and hundreds of phenotypes in 5,897 African Americans as part of the Population Architecture using Genomics and Epidemiology (PAGE) I study. The PAGE I study was a National Human Genome Research Institute-funded collaboration of four study sites accessing diverse epidemiologic studies genotyped on the Metabochip, a custom genotyping chip that has dense coverage of regions in the genome previously associated with cardio-metabolic traits and outcomes in mostly European-descent populations. Here we focus on identifying novel phenome-genome relationships, where SNPs are associated with more than one phenotype. To do this, we performed a PheWAS, testing each SNP on the Metabochip for an association with up to 273 phenotypes in the participating PAGE I study sites. We identified 133 putative pleiotropic variants, defined as SNPs associated at an empirically derived p-value threshold of p
Published: 2019
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9. Genetic analysis of hsCRP in American Indians: The Strong Heart Family Study.

Author: Lyle G Best, Poojitha Balakrishnan, Shelley A Cole, Karin Haack, Jonathan M Kocarnik, Nathan Pankratz, Matthew Z Anderson, Nora Franceschini, Barbara V Howard, Elisa T Lee, Kari E North, Jason G Umans, Joseph M Yracheta, Ana Navas-Acien, and V Saroja Voruganti
Subjects: Medicine, Science
Abstract: BackgroundIncreased serum levels of C-reactive protein (CRP), an important component of the innate immune response, are associated with increased risk of cardiovascular disease (CVD). Multiple single nucleotide polymorphisms (SNP) have been identified which are associated with CRP levels, and Mendelian randomization studies have shown a positive association between SNPs increasing CRP expression and risk of colon cancer (but thus far not CVD). The effects of individual genetic variants often interact with the genetic background of a population and hence we sought to resolve the genetic determinants of serum CRP in a number of American Indian populations.MethodsThe Strong Heart Family Study (SHFS) has serum CRP measurements from 2428 tribal members, recruited as large families from three regions of the United States. Microsatellite markers and MetaboChip defined SNP genotypes were incorporated into variance components, decomposition-based linkage and association analyses.ResultsCRP levels exhibited significant heritability (h2 = 0.33 ± 0.05, pConclusionIn agreement with evidence from other populations, these data show CRP serum levels are under considerable genetic influence; and include loci, such as near CRP and other genes, that replicate results from other ethnic groups. These findings also suggest possible novel loci on chr 6 and other chromosomes that warrant further investigation.
Published: 2019
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10. A high throughput, functional screen of human Body Mass Index GWAS loci using tissue-specific RNAi Drosophila melanogaster crosses.

Author: Thomas J Baranski, Aldi T Kraja, Jill L Fink, Mary Feitosa, Petra A Lenzini, Ingrid B Borecki, Ching-Ti Liu, L Adrienne Cupples, Kari E North, and Michael A Province
Subjects: Genetics, QH426-470
Abstract: Human GWAS of obesity have been successful in identifying loci associated with adiposity, but for the most part, these are non-coding SNPs whose function, or even whose gene of action, is unknown. To help identify the genes on which these human BMI loci may be operating, we conducted a high throughput screen in Drosophila melanogaster. Starting with 78 BMI loci from two recently published GWAS meta-analyses, we identified fly orthologs of all nearby genes (± 250KB). We crossed RNAi knockdown lines of each gene with flies containing tissue-specific drivers to knock down (KD) the expression of the genes only in the brain and the fat body. We then raised the flies on a control diet and compared the amount of fat/triglyceride in the tissue-specific KD group compared to the driver-only control flies. 16 of the 78 BMI GWAS loci could not be screened with this approach, as no gene in the 500-kb region had a fly ortholog. Of the remaining 62 GWAS loci testable in the fly, we found a significant fat phenotype in the KD flies for at least one gene for 26 loci (42%) even after correcting for multiple comparisons. By contrast, the rate of significant fat phenotypes in RNAi KD found in a recent genome-wide Drosophila screen (Pospisilik et al. (2010) is ~5%. More interestingly, for 10 of the 26 positive regions, we found that the nearest gene was not the one that showed a significant phenotype in the fly. Specifically, our screen suggests that for the 10 human BMI SNPs rs11057405, rs205262, rs9925964, rs9914578, rs2287019, rs11688816, rs13107325, rs7164727, rs17724992, and rs299412, the functional genes may NOT be the nearest ones (CLIP1, C6orf106, KAT8, SMG6, QPCTL, EHBP1, SLC39A8, ADPGK /ADPGK-AS1, PGPEP1, KCTD15, respectively), but instead, the specific nearby cis genes are the functional target (namely: ZCCHC8, VPS33A, RSRC2; SPDEF, NUDT3; PAGR1; SETD1, VKORC1; SGSM2, SRR; VASP, SIX5; OTX1; BANK1; ARIH1; ELL; CHST8, respectively). The study also suggests further functional experiments to elucidate mechanism of action for genes evolutionarily conserved for fat storage.
Published: 2018
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11. The genetic underpinnings of variation in ages at menarche and natural menopause among women from the multi-ethnic Population Architecture using Genomics and Epidemiology (PAGE) Study: A trans-ethnic meta-analysis.

Author: Lindsay Fernández-Rhodes, Jennifer R Malinowski, Yujie Wang, Ran Tao, Nathan Pankratz, Janina M Jeff, Sachiko Yoneyama, Cara L Carty, V Wendy Setiawan, Loic Le Marchand, Christopher Haiman, Steven Corbett, Ellen Demerath, Gerardo Heiss, Myron Gross, Petra Buzkova, Dana C Crawford, Steven C Hunt, D C Rao, Karen Schwander, Aravinda Chakravarti, Omri Gottesman, Noura S Abul-Husn, Erwin P Bottinger, Ruth J F Loos, Leslie J Raffel, Jie Yao, Xiuqing Guo, Suzette J Bielinski, Jerome I Rotter, Dhananjay Vaidya, Yii-Der Ida Chen, Sheila F Castañeda, Martha Daviglus, Robert Kaplan, Gregory A Talavera, Kelli K Ryckman, Ulrike Peters, Jose Luis Ambite, Steven Buyske, Lucia Hindorff, Charles Kooperberg, Tara Matise, Nora Franceschini, and Kari E North
Subjects: Medicine, Science
Abstract: Current knowledge of the genetic architecture of key reproductive events across the female life course is largely based on association studies of European descent women. The relevance of known loci for age at menarche (AAM) and age at natural menopause (ANM) in diverse populations remains unclear. We investigated 32 AAM and 14 ANM previously-identified loci and sought to identify novel loci in a trans-ethnic array-wide study of 196,483 SNPs on the MetaboChip (Illumina, Inc.). A total of 45,364 women of diverse ancestries (African, Hispanic/Latina, Asian American and American Indian/Alaskan Native) in the Population Architecture using Genomics and Epidemiology (PAGE) Study were included in cross-sectional analyses of AAM and ANM. Within each study we conducted a linear regression of SNP associations with self-reported or medical record-derived AAM or ANM (in years), adjusting for birth year, population stratification, and center/region, as appropriate, and meta-analyzed results across studies using multiple meta-analytic techniques. For both AAM and ANM, we observed more directionally consistent associations with the previously reported risk alleles than expected by chance (p-valuesbinomial≤0.01). Eight densely genotyped reproductive loci generalized significantly to at least one non-European population. We identified one trans-ethnic array-wide SNP association with AAM and two significant associations with ANM, which have not been described previously. Additionally, we observed evidence of independent secondary signals at three of six AAM trans-ethnic loci. Our findings support the transferability of reproductive trait loci discovered in European women to women of other race/ethnicities and indicate the presence of additional trans-ethnic associations both at both novel and established loci. These findings suggest the benefit of including diverse populations in future studies of the genetic architecture of female growth and development.
Published: 2018
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12. Genetic identification of a common collagen disease in Puerto Ricans via identity-by-descent mapping in a health system

Author: Gillian Morven Belbin, Jacqueline Odgis, Elena P Sorokin, Muh-Ching Yee, Sumita Kohli, Benjamin S Glicksberg, Christopher R Gignoux, Genevieve L Wojcik, Tielman Van Vleck, Janina M Jeff, Michael Linderman, Claudia Schurmann, Douglas Ruderfer, Xiaoqiang Cai, Amanda Merkelson, Anne E Justice, Kristin L Young, Misa Graff, Kari E North, Ulrike Peters, Regina James, Lucia Hindorff, Ruth Kornreich, Lisa Edelmann, Omri Gottesman, Eli EA Stahl, Judy H Cho, Ruth JF Loos, Erwin P Bottinger, Girish N Nadkarni, Noura S Abul-Husn, and Eimear E Kenny
Subjects: GWAS, medical genetics, population genetics, Electronic Health Records, collagen disorder, Medicine, Science, Biology (General), QH301-705.5
Abstract: Achieving confidence in the causality of a disease locus is a complex task that often requires supporting data from both statistical genetics and clinical genomics. Here we describe a combined approach to identify and characterize a genetic disorder that leverages distantly related patients in a health system and population-scale mapping. We utilize genomic data to uncover components of distant pedigrees, in the absence of recorded pedigree information, in the multi-ethnic BioMe biobank in New York City. By linking to medical records, we discover a locus associated with both elevated genetic relatedness and extreme short stature. We link the gene, COL27A1, with a little-known genetic disease, previously thought to be rare and recessive. We demonstrate that disease manifests in both heterozygotes and homozygotes, indicating a common collagen disorder impacting up to 2% of individuals of Puerto Rican ancestry, leading to a better understanding of the continuum of complex and Mendelian disease.
Published: 2017
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13. Correction: Genome-wide physical activity interactions in adiposity - A meta-analysis of 200,452 adults.

Author: Mariaelisa Graff, Robert A Scott, Anne E Justice, Kristin L Young, Mary F Feitosa, Llilda Barata, Thomas W Winkler, Audrey Y Chu, Anubha Mahajan, David Hadley, Luting Xue, Tsegaselassie Workalemahu, Nancy L Heard-Costa, Marcel den Hoed, Tarunveer S Ahluwalia, Qibin Qi, Julius S Ngwa, Frida Renström, Lydia Quaye, John D Eicher, James E Hayes, Marilyn Cornelis, Zoltan Kutalik, Elise Lim, Jian'an Luan, Jennifer E Huffman, Weihua Zhang, Wei Zhao, Paula J Griffin, Toomas Haller, Shafqat Ahmad, Pedro M Marques-Vidal, Stephanie Bien, Loic Yengo, Alexander Teumer, Albert Vernon Smith, Meena Kumari, Marie Neergaard Harder, Johanne Marie Justesen, Marcus E Kleber, Mette Hollensted, Kurt Lohman, Natalia V Rivera, John B Whitfield, Jing Hua Zhao, Heather M Stringham, Leo-Pekka Lyytikäinen, Charlotte Huppertz, Gonneke Willemsen, Wouter J Peyrot, Ying Wu, Kati Kristiansson, Ayse Demirkan, Myriam Fornage, Maija Hassinen, Lawrence F Bielak, Gemma Cadby, Toshiko Tanaka, Reedik Mägi, Peter J van der Most, Anne U Jackson, Jennifer L Bragg-Gresham, Veronique Vitart, Jonathan Marten, Pau Navarro, Claire Bellis, Dorota Pasko, Åsa Johansson, Søren Snitker, Yu-Ching Cheng, Joel Eriksson, Unhee Lim, Mette Aadahl, Linda S Adair, Najaf Amin, Beverley Balkau, Juha Auvinen, John Beilby, Richard N Bergman, Sven Bergmann, Alain G Bertoni, John Blangero, Amélie Bonnefond, Lori L Bonnycastle, Judith B Borja, Søren Brage, Fabio Busonero, Steve Buyske, Harry Campbell, Peter S Chines, Francis S Collins, Tanguy Corre, George Davey Smith, Graciela E Delgado, Nicole Dueker, Marcus Dörr, Tapani Ebeling, Gudny Eiriksdottir, Tõnu Esko, Jessica D Faul, Mao Fu, Kristine Færch, Christian Gieger, Sven Gläser, Jian Gong, Penny Gordon-Larsen, Harald Grallert, Tanja B Grammer, Niels Grarup, Gerard van Grootheest, Kennet Harald, Nicholas D Hastie, Aki S Havulinna, Dena Hernandez, Lucia Hindorff, Lynne J Hocking, Oddgeir L Holmens, Christina Holzapfel, Jouke Jan Hottenga, Jie Huang, Tao Huang, Jennie Hui, Cornelia Huth, Nina Hutri-Kähönen, Alan L James, John-Olov Jansson, Min A Jhun, Markus Juonala, Leena Kinnunen, Heikki A Koistinen, Ivana Kolcic, Pirjo Komulainen, Johanna Kuusisto, Kirsti Kvaløy, Mika Kähönen, Timo A Lakka, Lenore J Launer, Benjamin Lehne, Cecilia M Lindgren, Mattias Lorentzon, Robert Luben, Michel Marre, Yuri Milaneschi, Keri L Monda, Grant W Montgomery, Marleen H M De Moor, Antonella Mulas, Martina Müller-Nurasyid, A W Musk, Reija Männikkö, Satu Männistö, Narisu Narisu, Matthias Nauck, Jennifer A Nettleton, Ilja M Nolte, Albertine J Oldehinkel, Matthias Olden, Ken K Ong, Sandosh Padmanabhan, Lavinia Paternoster, Jeremiah Perez, Markus Perola, Annette Peters, Ulrike Peters, Patricia A Peyser, Inga Prokopenko, Hannu Puolijoki, Olli T Raitakari, Tuomo Rankinen, Laura J Rasmussen-Torvik, Rajesh Rawal, Paul M Ridker, Lynda M Rose, Igor Rudan, Cinzia Sarti, Mark A Sarzynski, Kai Savonen, William R Scott, Serena Sanna, Alan R Shuldiner, Steve Sidney, Günther Silbernagel, Blair H Smith, Jennifer A Smith, Harold Snieder, Alena Stančáková, Barbara Sternfeld, Amy J Swift, Tuija Tammelin, Sian-Tsung Tan, Barbara Thorand, Dorothée Thuillier, Liesbeth Vandenput, Henrik Vestergaard, Jana V van Vliet-Ostaptchouk, Marie-Claude Vohl, Uwe Völker, Gérard Waeber, Mark Walker, Sarah Wild, Andrew Wong, Alan F Wright, M Carola Zillikens, Niha Zubair, Christopher A Haiman, Loic Lemarchand, Ulf Gyllensten, Claes Ohlsson, Albert Hofman, Fernando Rivadeneira, André G Uitterlinden, Louis Pérusse, James F Wilson, Caroline Hayward, Ozren Polasek, Francesco Cucca, Kristian Hveem, Catharina A Hartman, Anke Tönjes, Stefania Bandinelli, Lyle J Palmer, Sharon L R Kardia, Rainer Rauramaa, Thorkild I A Sørensen, Jaakko Tuomilehto, Veikko Salomaa, Brenda W J H Penninx, Eco J C de Geus, Dorret I Boomsma, Terho Lehtimäki, Massimo Mangino, Markku Laakso, Claude Bouchard, Nicholas G Martin, Diana Kuh, Yongmei Liu, Allan Linneberg, Winfried März, Konstantin Strauch, Mika Kivimäki, Tamara B Harris, Vilmundur Gudnason, Henry Völzke, Lu Qi, Marjo-Riitta Järvelin, John C Chambers, Jaspal S Kooner, Philippe Froguel, Charles Kooperberg, Peter Vollenweider, Göran Hallmans, Torben Hansen, Oluf Pedersen, Andres Metspalu, Nicholas J Wareham, Claudia Langenberg, David R Weir, David J Porteous, Eric Boerwinkle, Daniel I Chasman, CHARGE Consortium, EPIC-InterAct Consortium, PAGE Consortium, Gonçalo R Abecasis, Inês Barroso, Mark I McCarthy, Timothy M Frayling, Jeffrey R O'Connell, Cornelia M van Duijn, Michael Boehnke, Iris M Heid, Karen L Mohlke, David P Strachan, Caroline S Fox, Ching-Ti Liu, Joel N Hirschhorn, Robert J Klein, Andrew D Johnson, Ingrid B Borecki, Paul W Franks, Kari E North, L Adrienne Cupples, Ruth J F Loos, and Tuomas O Kilpeläinen
Subjects: Genetics, QH426-470
Abstract: [This corrects the article DOI: 10.1371/journal.pgen.1006528.].
Published: 2017
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14. Discovery and fine-mapping of adiposity loci using high density imputation of genome-wide association studies in individuals of African ancestry: African Ancestry Anthropometry Genetics Consortium.

Author: Maggie C Y Ng, Mariaelisa Graff, Yingchang Lu, Anne E Justice, Poorva Mudgal, Ching-Ti Liu, Kristin Young, Lisa R Yanek, Mary F Feitosa, Mary K Wojczynski, Kristin Rand, Jennifer A Brody, Brian E Cade, Latchezar Dimitrov, Qing Duan, Xiuqing Guo, Leslie A Lange, Michael A Nalls, Hayrettin Okut, Salman M Tajuddin, Bamidele O Tayo, Sailaja Vedantam, Jonathan P Bradfield, Guanjie Chen, Wei-Min Chen, Alessandra Chesi, Marguerite R Irvin, Badri Padhukasahasram, Jennifer A Smith, Wei Zheng, Matthew A Allison, Christine B Ambrosone, Elisa V Bandera, Traci M Bartz, Sonja I Berndt, Leslie Bernstein, William J Blot, Erwin P Bottinger, John Carpten, Stephen J Chanock, Yii-Der Ida Chen, David V Conti, Richard S Cooper, Myriam Fornage, Barry I Freedman, Melissa Garcia, Phyllis J Goodman, Yu-Han H Hsu, Jennifer Hu, Chad D Huff, Sue A Ingles, Esther M John, Rick Kittles, Eric Klein, Jin Li, Barbara McKnight, Uma Nayak, Barbara Nemesure, Adesola Ogunniyi, Andrew Olshan, Michael F Press, Rebecca Rohde, Benjamin A Rybicki, Babatunde Salako, Maureen Sanderson, Yaming Shao, David S Siscovick, Janet L Stanford, Victoria L Stevens, Alex Stram, Sara S Strom, Dhananjay Vaidya, John S Witte, Jie Yao, Xiaofeng Zhu, Regina G Ziegler, Alan B Zonderman, Adebowale Adeyemo, Stefan Ambs, Mary Cushman, Jessica D Faul, Hakon Hakonarson, Albert M Levin, Katherine L Nathanson, Erin B Ware, David R Weir, Wei Zhao, Degui Zhi, Bone Mineral Density in Childhood Study (BMDCS) Group, Donna K Arnett, Struan F A Grant, Sharon L R Kardia, Olufunmilayo I Oloapde, D C Rao, Charles N Rotimi, Michele M Sale, L Keoki Williams, Babette S Zemel, Diane M Becker, Ingrid B Borecki, Michele K Evans, Tamara B Harris, Joel N Hirschhorn, Yun Li, Sanjay R Patel, Bruce M Psaty, Jerome I Rotter, James G Wilson, Donald W Bowden, L Adrienne Cupples, Christopher A Haiman, Ruth J F Loos, and Kari E North
Subjects: Genetics, QH426-470
Abstract: Genome-wide association studies (GWAS) have identified >300 loci associated with measures of adiposity including body mass index (BMI) and waist-to-hip ratio (adjusted for BMI, WHRadjBMI), but few have been identified through screening of the African ancestry genomes. We performed large scale meta-analyses and replications in up to 52,895 individuals for BMI and up to 23,095 individuals for WHRadjBMI from the African Ancestry Anthropometry Genetics Consortium (AAAGC) using 1000 Genomes phase 1 imputed GWAS to improve coverage of both common and low frequency variants in the low linkage disequilibrium African ancestry genomes. In the sex-combined analyses, we identified one novel locus (TCF7L2/HABP2) for WHRadjBMI and eight previously established loci at P < 5×10-8: seven for BMI, and one for WHRadjBMI in African ancestry individuals. An additional novel locus (SPRYD7/DLEU2) was identified for WHRadjBMI when combined with European GWAS. In the sex-stratified analyses, we identified three novel loci for BMI (INTS10/LPL and MLC1 in men, IRX4/IRX2 in women) and four for WHRadjBMI (SSX2IP, CASC8, PDE3B and ZDHHC1/HSD11B2 in women) in individuals of African ancestry or both African and European ancestry. For four of the novel variants, the minor allele frequency was low (
Published: 2017
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15. Genome-wide association study of red blood cell traits in Hispanics/Latinos: The Hispanic Community Health Study/Study of Latinos.

Author: Chani J Hodonsky, Deepti Jain, Ursula M Schick, Jean V Morrison, Lisa Brown, Caitlin P McHugh, Claudia Schurmann, Diane D Chen, Yong Mei Liu, Paul L Auer, Cecilia A Laurie, Kent D Taylor, Brian L Browning, Yun Li, George Papanicolaou, Jerome I Rotter, Ryo Kurita, Yukio Nakamura, Sharon R Browning, Ruth J F Loos, Kari E North, Cathy C Laurie, Timothy A Thornton, Nathan Pankratz, Daniel E Bauer, Tamar Sofer, and Alex P Reiner
Subjects: Genetics, QH426-470
Abstract: Prior GWAS have identified loci associated with red blood cell (RBC) traits in populations of European, African, and Asian ancestry. These studies have not included individuals with an Amerindian ancestral background, such as Hispanics/Latinos, nor evaluated the full spectrum of genomic variation beyond single nucleotide variants. Using a custom genotyping array enriched for Amerindian ancestral content and 1000 Genomes imputation, we performed GWAS in 12,502 participants of Hispanic Community Health Study and Study of Latinos (HCHS/SOL) for hematocrit, hemoglobin, RBC count, RBC distribution width (RDW), and RBC indices. Approximately 60% of previously reported RBC trait loci generalized to HCHS/SOL Hispanics/Latinos, including African ancestral alpha- and beta-globin gene variants. In addition to the known 3.8kb alpha-globin copy number variant, we identified an Amerindian ancestral association in an alpha-globin regulatory region on chromosome 16p13.3 for mean corpuscular volume and mean corpuscular hemoglobin. We also discovered and replicated three genome-wide significant variants in previously unreported loci for RDW (SLC12A2 rs17764730, PSMB5 rs941718), and hematocrit (PROX1 rs3754140). Among the proxy variants at the SLC12A2 locus we identified rs3812049, located in a bi-directional promoter between SLC12A2 (which encodes a red cell membrane ion-transport protein) and an upstream anti-sense long-noncoding RNA, LINC01184, as the likely causal variant. We further demonstrate that disruption of the regulatory element harboring rs3812049 affects transcription of SLC12A2 and LINC01184 in human erythroid progenitor cells. Together, these results reinforce the importance of genetic study of diverse ancestral populations, in particular Hispanics/Latinos.
Published: 2017
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16. Genome-wide physical activity interactions in adiposity - A meta-analysis of 200,452 adults.

Author: Mariaelisa Graff, Robert A Scott, Anne E Justice, Kristin L Young, Mary F Feitosa, Llilda Barata, Thomas W Winkler, Audrey Y Chu, Anubha Mahajan, David Hadley, Luting Xue, Tsegaselassie Workalemahu, Nancy L Heard-Costa, Marcel den Hoed, Tarunveer S Ahluwalia, Qibin Qi, Julius S Ngwa, Frida Renström, Lydia Quaye, John D Eicher, James E Hayes, Marilyn Cornelis, Zoltan Kutalik, Elise Lim, Jian'an Luan, Jennifer E Huffman, Weihua Zhang, Wei Zhao, Paula J Griffin, Toomas Haller, Shafqat Ahmad, Pedro M Marques-Vidal, Stephanie Bien, Loic Yengo, Alexander Teumer, Albert Vernon Smith, Meena Kumari, Marie Neergaard Harder, Johanne Marie Justesen, Marcus E Kleber, Mette Hollensted, Kurt Lohman, Natalia V Rivera, John B Whitfield, Jing Hua Zhao, Heather M Stringham, Leo-Pekka Lyytikäinen, Charlotte Huppertz, Gonneke Willemsen, Wouter J Peyrot, Ying Wu, Kati Kristiansson, Ayse Demirkan, Myriam Fornage, Maija Hassinen, Lawrence F Bielak, Gemma Cadby, Toshiko Tanaka, Reedik Mägi, Peter J van der Most, Anne U Jackson, Jennifer L Bragg-Gresham, Veronique Vitart, Jonathan Marten, Pau Navarro, Claire Bellis, Dorota Pasko, Åsa Johansson, Søren Snitker, Yu-Ching Cheng, Joel Eriksson, Unhee Lim, Mette Aadahl, Linda S Adair, Najaf Amin, Beverley Balkau, Juha Auvinen, John Beilby, Richard N Bergman, Sven Bergmann, Alain G Bertoni, John Blangero, Amélie Bonnefond, Lori L Bonnycastle, Judith B Borja, Søren Brage, Fabio Busonero, Steve Buyske, Harry Campbell, Peter S Chines, Francis S Collins, Tanguy Corre, George Davey Smith, Graciela E Delgado, Nicole Dueker, Marcus Dörr, Tapani Ebeling, Gudny Eiriksdottir, Tõnu Esko, Jessica D Faul, Mao Fu, Kristine Færch, Christian Gieger, Sven Gläser, Jian Gong, Penny Gordon-Larsen, Harald Grallert, Tanja B Grammer, Niels Grarup, Gerard van Grootheest, Kennet Harald, Nicholas D Hastie, Aki S Havulinna, Dena Hernandez, Lucia Hindorff, Lynne J Hocking, Oddgeir L Holmens, Christina Holzapfel, Jouke Jan Hottenga, Jie Huang, Tao Huang, Jennie Hui, Cornelia Huth, Nina Hutri-Kähönen, Alan L James, John-Olov Jansson, Min A Jhun, Markus Juonala, Leena Kinnunen, Heikki A Koistinen, Ivana Kolcic, Pirjo Komulainen, Johanna Kuusisto, Kirsti Kvaløy, Mika Kähönen, Timo A Lakka, Lenore J Launer, Benjamin Lehne, Cecilia M Lindgren, Mattias Lorentzon, Robert Luben, Michel Marre, Yuri Milaneschi, Keri L Monda, Grant W Montgomery, Marleen H M De Moor, Antonella Mulas, Martina Müller-Nurasyid, A W Musk, Reija Männikkö, Satu Männistö, Narisu Narisu, Matthias Nauck, Jennifer A Nettleton, Ilja M Nolte, Albertine J Oldehinkel, Matthias Olden, Ken K Ong, Sandosh Padmanabhan, Lavinia Paternoster, Jeremiah Perez, Markus Perola, Annette Peters, Ulrike Peters, Patricia A Peyser, Inga Prokopenko, Hannu Puolijoki, Olli T Raitakari, Tuomo Rankinen, Laura J Rasmussen-Torvik, Rajesh Rawal, Paul M Ridker, Lynda M Rose, Igor Rudan, Cinzia Sarti, Mark A Sarzynski, Kai Savonen, William R Scott, Serena Sanna, Alan R Shuldiner, Steve Sidney, Günther Silbernagel, Blair H Smith, Jennifer A Smith, Harold Snieder, Alena Stančáková, Barbara Sternfeld, Amy J Swift, Tuija Tammelin, Sian-Tsung Tan, Barbara Thorand, Dorothée Thuillier, Liesbeth Vandenput, Henrik Vestergaard, Jana V van Vliet-Ostaptchouk, Marie-Claude Vohl, Uwe Völker, Gérard Waeber, Mark Walker, Sarah Wild, Andrew Wong, Alan F Wright, M Carola Zillikens, Niha Zubair, Christopher A Haiman, Loic Lemarchand, Ulf Gyllensten, Claes Ohlsson, Albert Hofman, Fernando Rivadeneira, André G Uitterlinden, Louis Pérusse, James F Wilson, Caroline Hayward, Ozren Polasek, Francesco Cucca, Kristian Hveem, Catharina A Hartman, Anke Tönjes, Stefania Bandinelli, Lyle J Palmer, Sharon L R Kardia, Rainer Rauramaa, Thorkild I A Sørensen, Jaakko Tuomilehto, Veikko Salomaa, Brenda W J H Penninx, Eco J C de Geus, Dorret I Boomsma, Terho Lehtimäki, Massimo Mangino, Markku Laakso, Claude Bouchard, Nicholas G Martin, Diana Kuh, Yongmei Liu, Allan Linneberg, Winfried März, Konstantin Strauch, Mika Kivimäki, Tamara B Harris, Vilmundur Gudnason, Henry Völzke, Lu Qi, Marjo-Riitta Järvelin, John C Chambers, Jaspal S Kooner, Philippe Froguel, Charles Kooperberg, Peter Vollenweider, Göran Hallmans, Torben Hansen, Oluf Pedersen, Andres Metspalu, Nicholas J Wareham, Claudia Langenberg, David R Weir, David J Porteous, Eric Boerwinkle, Daniel I Chasman, CHARGE Consortium, EPIC-InterAct Consortium, PAGE Consortium, Gonçalo R Abecasis, Inês Barroso, Mark I McCarthy, Timothy M Frayling, Jeffrey R O'Connell, Cornelia M van Duijn, Michael Boehnke, Iris M Heid, Karen L Mohlke, David P Strachan, Caroline S Fox, Ching-Ti Liu, Joel N Hirschhorn, Robert J Klein, Andrew D Johnson, Ingrid B Borecki, Paul W Franks, Kari E North, L Adrienne Cupples, Ruth J F Loos, and Tuomas O Kilpeläinen
Subjects: Genetics, QH426-470
Abstract: Physical activity (PA) may modify the genetic effects that give rise to increased risk of obesity. To identify adiposity loci whose effects are modified by PA, we performed genome-wide interaction meta-analyses of BMI and BMI-adjusted waist circumference and waist-hip ratio from up to 200,452 adults of European (n = 180,423) or other ancestry (n = 20,029). We standardized PA by categorizing it into a dichotomous variable where, on average, 23% of participants were categorized as inactive and 77% as physically active. While we replicate the interaction with PA for the strongest known obesity-risk locus in the FTO gene, of which the effect is attenuated by ~30% in physically active individuals compared to inactive individuals, we do not identify additional loci that are sensitive to PA. In additional genome-wide meta-analyses adjusting for PA and interaction with PA, we identify 11 novel adiposity loci, suggesting that accounting for PA or other environmental factors that contribute to variation in adiposity may facilitate gene discovery.
Published: 2017
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17. Admixture mapping of pelvic organ prolapse in African Americans from the Women's Health Initiative Hormone Therapy trial.

Author: Ayush Giri, Katherine E Hartmann, Melinda C Aldrich, Renee M Ward, Jennifer M Wu, Amy J Park, Mariaelisa Graff, Lihong Qi, Rami Nassir, Robert B Wallace, Mary J O'Sullivan, Kari E North, Digna R Velez Edwards, and Todd L Edwards
Subjects: Medicine, Science
Abstract: Evidence suggests European American (EA) women have two- to five-fold increased odds of having pelvic organ prolapse (POP) when compared with African American (AA) women. However, the role of genetic ancestry in relation to POP risk is not clear. Here we evaluate the association between genetic ancestry and POP in AA women from the Women's Health Initiative Hormone Therapy trial. Women with grade 1 or higher classification, and grade 2 or higher classification for uterine prolapse, cystocele or rectocele at baseline or during follow-up were considered to have any POP (N = 805) and moderate/severe POP (N = 156), respectively. Women with at least two pelvic exams with no indication for POP served as controls (N = 344). We performed case-only, and case-control admixture-mapping analyses using multiple logistic regression while adjusting for age, BMI, parity and global ancestry. We evaluated the association between global ancestry and POP using multiple logistic regression. European ancestry at the individual level was not associated with POP risk. Case-only and case-control local ancestry analyses identified two ancestry-specific loci that may be associated with POP. One locus (Chromosome 15q26.2) achieved empirically-estimated statistical significance and was associated with decreased POP odds (considering grade ≥2 POP) with each unit increase in European ancestry (OR: 0.35; 95% CI: 0.30, 0.57; p-value = 1.48x10-5). This region includes RGMA, a potent regulator of the BMP family of genes. The second locus (Chromosome 1q42.1-q42.3) was associated with increased POP odds with each unit increase in European ancestry (Odds ratio [OR]: 1.69; 95% confidence interval [CI]: 1.28, 2.22; p-value = 1.93x10-4). Although this region did not reach statistical significance after considering multiple comparisons, it includes potentially relevant genes including TBCE, and ACTA1. Unique non-overlapping European and African ancestry-specific susceptibility loci may be associated with increased POP risk.
Published: 2017
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18. Correction: The Influence of Age and Sex on Genetic Associations with Adult Body Size and Shape: A Large-Scale Genome-Wide Interaction Study.

Author: Thomas W Winkler, Anne E Justice, Mariaelisa Graff, Llilda Barata, Mary F Feitosa, Su Chu, Jacek Czajkowski, Tõnu Esko, Tove Fall, Tuomas O Kilpeläinen, Yingchang Lu, Reedik Mägi, Evelin Mihailov, Tune H Pers, Sina Rüeger, Alexander Teumer, Georg B Ehret, Teresa Ferreira, Nancy L Heard-Costa, Juha Karjalainen, Vasiliki Lagou, Anubha Mahajan, Michael D Neinast, Inga Prokopenko, Jeannette Simino, Tanya M Teslovich, Rick Jansen, Harm-Jan Westra, Charles C White, Devin Absher, Tarunveer S Ahluwalia, Shafqat Ahmad, Eva Albrecht, Alexessander Couto Alves, Jennifer L Bragg-Gresham, Anton J M de Craen, Joshua C Bis, Amélie Bonnefond, Gabrielle Boucher, Gemma Cadby, Yu-Ching Cheng, Charleston W K Chiang, Graciela Delgado, Ayse Demirkan, Nicole Dueker, Niina Eklund, Gudny Eiriksdottir, Joel Eriksson, Bjarke Feenstra, Krista Fischer, Francesca Frau, Tessel E Galesloot, Frank Geller, Anuj Goel, Mathias Gorski, Tanja B Grammer, Stefan Gustafsson, Saskia Haitjema, Jouke-Jan Hottenga, Jennifer E Huffman, Anne U Jackson, Kevin B Jacobs, Åsa Johansson, Marika Kaakinen, Marcus E Kleber, Jari Lahti, Irene Mateo Leach, Benjamin Lehne, Youfang Liu, Ken Sin Lo, Mattias Lorentzon, Jian'an Luan, Pamela A F Madden, Massimo Mangino, Barbara McKnight, Carolina Medina-Gomez, Keri L Monda, May E Montasser, Gabriele Müller, Martina Müller-Nurasyid, Ilja M Nolte, Kalliope Panoutsopoulou, Laura Pascoe, Lavinia Paternoster, Nigel W Rayner, Frida Renström, Federica Rizzi, Lynda M Rose, Kathy A Ryan, Perttu Salo, Serena Sanna, Hubert Scharnagl, Jianxin Shi, Albert Vernon Smith, Lorraine Southam, Alena Stančáková, Valgerdur Steinthorsdottir, Rona J Strawbridge, Yun Ju Sung, Ioanna Tachmazidou, Toshiko Tanaka, Gudmar Thorleifsson, Stella Trompet, Natalia Pervjakova, Jonathan P Tyrer, Liesbeth Vandenput, Sander W van der Laan, Nathalie van der Velde, Jessica van Setten, Jana V van Vliet-Ostaptchouk, Niek Verweij, Efthymia Vlachopoulou, Lindsay L Waite, Sophie R Wang, Zhaoming Wang, Sarah H Wild, Christina Willenborg, James F Wilson, Andrew Wong, Jian Yang, Loïc Yengo, Laura M Yerges-Armstrong, Lei Yu, Weihua Zhang, Jing Hua Zhao, Ehm A Andersson, Stephan J L Bakker, Damiano Baldassarre, Karina Banasik, Matteo Barcella, Cristina Barlassina, Claire Bellis, Paola Benaglio, John Blangero, Matthias Blüher, Fabrice Bonnet, Lori L Bonnycastle, Heather A Boyd, Marcel Bruinenberg, Aron S Buchman, Harry Campbell, Yii-Der Ida Chen, Peter S Chines, Simone Claudi-Boehm, John Cole, Francis S Collins, Eco J C de Geus, Lisette C P G M de Groot, Maria Dimitriou, Jubao Duan, Stefan Enroth, Elodie Eury, Aliki-Eleni Farmaki, Nita G Forouhi, Nele Friedrich, Pablo V Gejman, Bruna Gigante, Nicola Glorioso, Alan S Go, Omri Gottesman, Jürgen Gräßler, Harald Grallert, Niels Grarup, Yu-Mei Gu, Linda Broer, Annelies C Ham, Torben Hansen, Tamara B Harris, Catharina A Hartman, Maija Hassinen, Nicholas Hastie, Andrew T Hattersley, Andrew C Heath, Anjali K Henders, Dena Hernandez, Hans Hillege, Oddgeir Holmen, Kees G Hovingh, Jennie Hui, Lise L Husemoen, Nina Hutri-Kähönen, Pirro G Hysi, Thomas Illig, Philip L De Jager, Shapour Jalilzadeh, Torben Jørgensen, J Wouter Jukema, Markus Juonala, Stavroula Kanoni, Maria Karaleftheri, Kay Tee Khaw, Leena Kinnunen, Steven J Kittner, Wolfgang Koenig, Ivana Kolcic, Peter Kovacs, Nikolaj T Krarup, Wolfgang Kratzer, Janine Krüger, Diana Kuh, Meena Kumari, Theodosios Kyriakou, Claudia Langenberg, Lars Lannfelt, Chiara Lanzani, Vaneet Lotay, Lenore J Launer, Karin Leander, Jaana Lindström, Allan Linneberg, Yan-Ping Liu, Stéphane Lobbens, Robert Luben, Valeriya Lyssenko, Satu Männistö, Patrik K Magnusson, Wendy L McArdle, Cristina Menni, Sigrun Merger, Lili Milani, Grant W Montgomery, Andrew P Morris, Narisu Narisu, Mari Nelis, Ken K Ong, Aarno Palotie, Louis Pérusse, Irene Pichler, Maria G Pilia, Anneli Pouta, Myriam Rheinberger, Rasmus Ribel-Madsen, Marcus Richards, Kenneth M Rice, Treva K Rice, Carlo Rivolta, Veikko Salomaa, Alan R Sanders, Mark A Sarzynski, Salome Scholtens, Robert A Scott, William R Scott, Sylvain Sebert, Sebanti Sengupta, Bengt Sennblad, Thomas Seufferlein, Angela Silveira, P Eline Slagboom, Jan H Smit, Thomas H Sparsø, Kathleen Stirrups, Ronald P Stolk, Heather M Stringham, Morris A Swertz, Amy J Swift, Ann-Christine Syvänen, Sian-Tsung Tan, Barbara Thorand, Anke Tönjes, Angelo Tremblay, Emmanouil Tsafantakis, Peter J van der Most, Uwe Völker, Marie-Claude Vohl, Judith M Vonk, Melanie Waldenberger, Ryan W Walker, Roman Wennauer, Elisabeth Widén, Gonneke Willemsen, Tom Wilsgaard, Alan F Wright, M Carola Zillikens, Suzanne C van Dijk, Natasja M van Schoor, Folkert W Asselbergs, Paul I W de Bakker, Jacques S Beckmann, John Beilby, David A Bennett, Richard N Bergman, Sven Bergmann, Carsten A Böger, Bernhard O Boehm, Eric Boerwinkle, Dorret I Boomsma, Stefan R Bornstein, Erwin P Bottinger, Claude Bouchard, John C Chambers, Stephen J Chanock, Daniel I Chasman, Francesco Cucca, Daniele Cusi, George Dedoussis, Jeanette Erdmann, Johan G Eriksson, Denis A Evans, Ulf de Faire, Martin Farrall, Luigi Ferrucci, Ian Ford, Lude Franke, Paul W Franks, Philippe Froguel, Ron T Gansevoort, Christian Gieger, Henrik Grönberg, Vilmundur Gudnason, Ulf Gyllensten, Per Hall, Anders Hamsten, Pim van der Harst, Caroline Hayward, Markku Heliövaara, Christian Hengstenberg, Andrew A Hicks, Aroon Hingorani, Albert Hofman, Frank Hu, Heikki V Huikuri, Kristian Hveem, Alan L James, Joanne M Jordan, Antti Jula, Mika Kähönen, Eero Kajantie, Sekar Kathiresan, Lambertus A L M Kiemeney, Mika Kivimaki, Paul B Knekt, Heikki A Koistinen, Jaspal S Kooner, Seppo Koskinen, Johanna Kuusisto, Winfried Maerz, Nicholas G Martin, Markku Laakso, Timo A Lakka, Terho Lehtimäki, Guillaume Lettre, Douglas F Levinson, Lars Lind, Marja-Liisa Lokki, Pekka Mäntyselkä, Mads Melbye, Andres Metspalu, Braxton D Mitchell, Frans L Moll, Jeffrey C Murray, Arthur W Musk, Markku S Nieminen, Inger Njølstad, Claes Ohlsson, Albertine J Oldehinkel, Ben A Oostra, Lyle J Palmer, James S Pankow, Gerard Pasterkamp, Nancy L Pedersen, Oluf Pedersen, Brenda W Penninx, Markus Perola, Annette Peters, Ozren Polašek, Peter P Pramstaller, Bruce M Psaty, Lu Qi, Thomas Quertermous, Olli T Raitakari, Tuomo Rankinen, Rainer Rauramaa, Paul M Ridker, John D Rioux, Fernando Rivadeneira, Jerome I Rotter, Igor Rudan, Hester M den Ruijter, Juha Saltevo, Naveed Sattar, Heribert Schunkert, Peter E H Schwarz, Alan R Shuldiner, Juha Sinisalo, Harold Snieder, Thorkild I A Sørensen, Tim D Spector, Jan A Staessen, Bandinelli Stefania, Unnur Thorsteinsdottir, Michael Stumvoll, Jean-Claude Tardif, Elena Tremoli, Jaakko Tuomilehto, André G Uitterlinden, Matti Uusitupa, André L M Verbeek, Sita H Vermeulen, Jorma S Viikari, Veronique Vitart, Henry Völzke, Peter Vollenweider, Gérard Waeber, Mark Walker, Henri Wallaschofski, Nicholas J Wareham, Hugh Watkins, Eleftheria Zeggini, arcOGEN Consortium, CHARGE Consortium, DIAGRAM Consortium, GLGC Consortium, Global-BPGen Consortium, ICBP Consortium, MAGIC Consortium, Aravinda Chakravarti, Deborah J Clegg, L Adrienne Cupples, Penny Gordon-Larsen, Cashell E Jaquish, D C Rao, Goncalo R Abecasis, Themistocles L Assimes, Inês Barroso, Sonja I Berndt, Michael Boehnke, Panos Deloukas, Caroline S Fox, Leif C Groop, David J Hunter, Erik Ingelsson, Robert C Kaplan, Mark I McCarthy, Karen L Mohlke, Jeffrey R O'Connell, David Schlessinger, David P Strachan, Kari Stefansson, Cornelia M van Duijn, Joel N Hirschhorn, Cecilia M Lindgren, Iris M Heid, Kari E North, Ingrid B Borecki, Zoltán Kutalik, and Ruth J F Loos
Subjects: Genetics, QH426-470
Abstract: [This corrects the article DOI: 10.1371/journal.pgen.1005378.].
Published: 2016
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19. Variant Discovery and Fine Mapping of Genetic Loci Associated with Blood Pressure Traits in Hispanics and African Americans.

Author: Nora Franceschini, Cara L Carty, Yingchang Lu, Ran Tao, Yun Ju Sung, Ani Manichaikul, Jeff Haessler, Myriam Fornage, Karen Schwander, Niha Zubair, Stephanie Bien, Lucia A Hindorff, Xiuqing Guo, Suzette J Bielinski, Georg Ehret, Joel D Kaufman, Stephen S Rich, Christopher S Carlson, Erwin P Bottinger, Kari E North, D C Rao, Aravinda Chakravarti, Paula Q Barrett, Ruth J F Loos, Steven Buyske, and Charles Kooperberg
Subjects: Medicine, Science
Abstract: Despite the substantial burden of hypertension in US minority populations, few genetic studies of blood pressure have been conducted in Hispanics and African Americans, and it is unclear whether many of the established loci identified in European-descent populations contribute to blood pressure variation in non-European descent populations. Using the Metabochip array, we sought to characterize the genetic architecture of previously identified blood pressure loci, and identify novel cardiometabolic variants related to systolic and diastolic blood pressure in a multi-ethnic US population including Hispanics (n = 19,706) and African Americans (n = 18,744). Several known blood pressure loci replicated in African Americans and Hispanics. Fourteen variants in three loci (KCNK3, FGF5, ATXN2-SH2B3) were significantly associated with blood pressure in Hispanics. The most significant diastolic blood pressure variant identified in our analysis, rs2586886/KCNK3 (P = 5.2 x 10-9), also replicated in independent Hispanic and European-descent samples. African American and trans-ethnic meta-analysis data identified novel variants in the FGF5, ULK4 and HOXA-EVX1 loci, which have not been previously associated with blood pressure traits. Our identification and independent replication of variants in KCNK3, a gene implicated in primary hyperaldosteronism, as well as a variant in HOTTIP (HOXA-EVX1) suggest that further work to clarify the roles of these genes may be warranted. Overall, our findings suggest that loci identified in European descent populations also contribute to blood pressure variation in diverse populations including Hispanics and African Americans-populations that are understudied for hypertension genetic risk factors.
Published: 2016
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20. Strategies for Enriching Variant Coverage in Candidate Disease Loci on a Multiethnic Genotyping Array.

Author: Stephanie A Bien, Genevieve L Wojcik, Niha Zubair, Christopher R Gignoux, Alicia R Martin, Jonathan M Kocarnik, Lisa W Martin, Steven Buyske, Jeffrey Haessler, Ryan W Walker, Iona Cheng, Mariaelisa Graff, Lucy Xia, Nora Franceschini, Tara Matise, Regina James, Lucia Hindorff, Loic Le Marchand, Kari E North, Christopher A Haiman, Ulrike Peters, Ruth J F Loos, Charles L Kooperberg, Carlos D Bustamante, Eimear E Kenny, Christopher S Carlson, and PAGE Study
Subjects: Medicine, Science
Abstract: Investigating genetic architecture of complex traits in ancestrally diverse populations is imperative to understand the etiology of disease. However, the current paucity of genetic research in people of African and Latin American ancestry, Hispanic and indigenous peoples in the United States is likely to exacerbate existing health disparities for many common diseases. The Population Architecture using Genomics and Epidemiology, Phase II (PAGE II), Study was initiated in 2013 by the National Human Genome Research Institute to expand our understanding of complex trait loci in ethnically diverse and well characterized study populations. To meet this goal, the Multi-Ethnic Genotyping Array (MEGA) was designed to substantially improve fine-mapping and functional discovery by increasing variant coverage across multiple ethnicities at known loci for metabolic, cardiovascular, renal, inflammatory, anthropometric, and a variety of lifestyle traits. Studying the frequency distribution of clinically relevant mutations, putative risk alleles, and known functional variants across multiple populations will provide important insight into the genetic architecture of complex diseases and facilitate the discovery of novel, sometimes population-specific, disease associations. DNA samples from 51,650 self-identified African ancestry (17,328), Hispanic/Latino (22,379), Asian/Pacific Islander (8,640), and American Indian (653) and an additional 2,650 participants of either South Asian or European ancestry, and other reference panels have been genotyped on MEGA by PAGE II. MEGA was designed as a new resource for studying ancestrally diverse populations. Here, we describe the methodology for selecting trait-specific content for use in multi-ethnic populations and how enriching MEGA for this content may contribute to deeper biological understanding of the genetic etiology of complex disease.
Published: 2016
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21. The Influence of Age and Sex on Genetic Associations with Adult Body Size and Shape: A Large-Scale Genome-Wide Interaction Study.

Author: Thomas W Winkler, Anne E Justice, Mariaelisa Graff, Llilda Barata, Mary F Feitosa, Su Chu, Jacek Czajkowski, Tõnu Esko, Tove Fall, Tuomas O Kilpeläinen, Yingchang Lu, Reedik Mägi, Evelin Mihailov, Tune H Pers, Sina Rüeger, Alexander Teumer, Georg B Ehret, Teresa Ferreira, Nancy L Heard-Costa, Juha Karjalainen, Vasiliki Lagou, Anubha Mahajan, Michael D Neinast, Inga Prokopenko, Jeannette Simino, Tanya M Teslovich, Rick Jansen, Harm-Jan Westra, Charles C White, Devin Absher, Tarunveer S Ahluwalia, Shafqat Ahmad, Eva Albrecht, Alexessander Couto Alves, Jennifer L Bragg-Gresham, Anton J M de Craen, Joshua C Bis, Amélie Bonnefond, Gabrielle Boucher, Gemma Cadby, Yu-Ching Cheng, Charleston W K Chiang, Graciela Delgado, Ayse Demirkan, Nicole Dueker, Niina Eklund, Gudny Eiriksdottir, Joel Eriksson, Bjarke Feenstra, Krista Fischer, Francesca Frau, Tessel E Galesloot, Frank Geller, Anuj Goel, Mathias Gorski, Tanja B Grammer, Stefan Gustafsson, Saskia Haitjema, Jouke-Jan Hottenga, Jennifer E Huffman, Anne U Jackson, Kevin B Jacobs, Åsa Johansson, Marika Kaakinen, Marcus E Kleber, Jari Lahti, Irene Mateo Leach, Benjamin Lehne, Youfang Liu, Ken Sin Lo, Mattias Lorentzon, Jian'an Luan, Pamela A F Madden, Massimo Mangino, Barbara McKnight, Carolina Medina-Gomez, Keri L Monda, May E Montasser, Gabriele Müller, Martina Müller-Nurasyid, Ilja M Nolte, Kalliope Panoutsopoulou, Laura Pascoe, Lavinia Paternoster, Nigel W Rayner, Frida Renström, Federica Rizzi, Lynda M Rose, Kathy A Ryan, Perttu Salo, Serena Sanna, Hubert Scharnagl, Jianxin Shi, Albert Vernon Smith, Lorraine Southam, Alena Stančáková, Valgerdur Steinthorsdottir, Rona J Strawbridge, Yun Ju Sung, Ioanna Tachmazidou, Toshiko Tanaka, Gudmar Thorleifsson, Stella Trompet, Natalia Pervjakova, Jonathan P Tyrer, Liesbeth Vandenput, Sander W van der Laan, Nathalie van der Velde, Jessica van Setten, Jana V van Vliet-Ostaptchouk, Niek Verweij, Efthymia Vlachopoulou, Lindsay L Waite, Sophie R Wang, Zhaoming Wang, Sarah H Wild, Christina Willenborg, James F Wilson, Andrew Wong, Jian Yang, Loïc Yengo, Laura M Yerges-Armstrong, Lei Yu, Weihua Zhang, Jing Hua Zhao, Ehm A Andersson, Stephan J L Bakker, Damiano Baldassarre, Karina Banasik, Matteo Barcella, Cristina Barlassina, Claire Bellis, Paola Benaglio, John Blangero, Matthias Blüher, Fabrice Bonnet, Lori L Bonnycastle, Heather A Boyd, Marcel Bruinenberg, Aron S Buchman, Harry Campbell, Yii-Der Ida Chen, Peter S Chines, Simone Claudi-Boehm, John Cole, Francis S Collins, Eco J C de Geus, Lisette C P G M de Groot, Maria Dimitriou, Jubao Duan, Stefan Enroth, Elodie Eury, Aliki-Eleni Farmaki, Nita G Forouhi, Nele Friedrich, Pablo V Gejman, Bruna Gigante, Nicola Glorioso, Alan S Go, Omri Gottesman, Jürgen Gräßler, Harald Grallert, Niels Grarup, Yu-Mei Gu, Linda Broer, Annelies C Ham, Torben Hansen, Tamara B Harris, Catharina A Hartman, Maija Hassinen, Nicholas Hastie, Andrew T Hattersley, Andrew C Heath, Anjali K Henders, Dena Hernandez, Hans Hillege, Oddgeir Holmen, Kees G Hovingh, Jennie Hui, Lise L Husemoen, Nina Hutri-Kähönen, Pirro G Hysi, Thomas Illig, Philip L De Jager, Shapour Jalilzadeh, Torben Jørgensen, J Wouter Jukema, Markus Juonala, Stavroula Kanoni, Maria Karaleftheri, Kay Tee Khaw, Leena Kinnunen, Steven J Kittner, Wolfgang Koenig, Ivana Kolcic, Peter Kovacs, Nikolaj T Krarup, Wolfgang Kratzer, Janine Krüger, Diana Kuh, Meena Kumari, Theodosios Kyriakou, Claudia Langenberg, Lars Lannfelt, Chiara Lanzani, Vaneet Lotay, Lenore J Launer, Karin Leander, Jaana Lindström, Allan Linneberg, Yan-Ping Liu, Stéphane Lobbens, Robert Luben, Valeriya Lyssenko, Satu Männistö, Patrik K Magnusson, Wendy L McArdle, Cristina Menni, Sigrun Merger, Lili Milani, Grant W Montgomery, Andrew P Morris, Narisu Narisu, Mari Nelis, Ken K Ong, Aarno Palotie, Louis Pérusse, Irene Pichler, Maria G Pilia, Anneli Pouta, Myriam Rheinberger, Rasmus Ribel-Madsen, Marcus Richards, Kenneth M Rice, Treva K Rice, Carlo Rivolta, Veikko Salomaa, Alan R Sanders, Mark A Sarzynski, Salome Scholtens, Robert A Scott, William R Scott, Sylvain Sebert, Sebanti Sengupta, Bengt Sennblad, Thomas Seufferlein, Angela Silveira, P Eline Slagboom, Jan H Smit, Thomas H Sparsø, Kathleen Stirrups, Ronald P Stolk, Heather M Stringham, Morris A Swertz, Amy J Swift, Ann-Christine Syvänen, Sian-Tsung Tan, Barbara Thorand, Anke Tönjes, Angelo Tremblay, Emmanouil Tsafantakis, Peter J van der Most, Uwe Völker, Marie-Claude Vohl, Judith M Vonk, Melanie Waldenberger, Ryan W Walker, Roman Wennauer, Elisabeth Widén, Gonneke Willemsen, Tom Wilsgaard, Alan F Wright, M Carola Zillikens, Suzanne C van Dijk, Natasja M van Schoor, Folkert W Asselbergs, Paul I W de Bakker, Jacques S Beckmann, John Beilby, David A Bennett, Richard N Bergman, Sven Bergmann, Carsten A Böger, Bernhard O Boehm, Eric Boerwinkle, Dorret I Boomsma, Stefan R Bornstein, Erwin P Bottinger, Claude Bouchard, John C Chambers, Stephen J Chanock, Daniel I Chasman, Francesco Cucca, Daniele Cusi, George Dedoussis, Jeanette Erdmann, Johan G Eriksson, Denis A Evans, Ulf de Faire, Martin Farrall, Luigi Ferrucci, Ian Ford, Lude Franke, Paul W Franks, Philippe Froguel, Ron T Gansevoort, Christian Gieger, Henrik Grönberg, Vilmundur Gudnason, Ulf Gyllensten, Per Hall, Anders Hamsten, Pim van der Harst, Caroline Hayward, Markku Heliövaara, Christian Hengstenberg, Andrew A Hicks, Aroon Hingorani, Albert Hofman, Frank Hu, Heikki V Huikuri, Kristian Hveem, Alan L James, Joanne M Jordan, Antti Jula, Mika Kähönen, Eero Kajantie, Sekar Kathiresan, Lambertus A L M Kiemeney, Mika Kivimaki, Paul B Knekt, Heikki A Koistinen, Jaspal S Kooner, Seppo Koskinen, Johanna Kuusisto, Winfried Maerz, Nicholas G Martin, Markku Laakso, Timo A Lakka, Terho Lehtimäki, Guillaume Lettre, Douglas F Levinson, Lars Lind, Marja-Liisa Lokki, Pekka Mäntyselkä, Mads Melbye, Andres Metspalu, Braxton D Mitchell, Frans L Moll, Jeffrey C Murray, Arthur W Musk, Markku S Nieminen, Inger Njølstad, Claes Ohlsson, Albertine J Oldehinkel, Ben A Oostra, Lyle J Palmer, James S Pankow, Gerard Pasterkamp, Nancy L Pedersen, Oluf Pedersen, Brenda W Penninx, Markus Perola, Annette Peters, Ozren Polašek, Peter P Pramstaller, Bruce M Psaty, Lu Qi, Thomas Quertermous, Olli T Raitakari, Tuomo Rankinen, Rainer Rauramaa, Paul M Ridker, John D Rioux, Fernando Rivadeneira, Jerome I Rotter, Igor Rudan, Hester M den Ruijter, Juha Saltevo, Naveed Sattar, Heribert Schunkert, Peter E H Schwarz, Alan R Shuldiner, Juha Sinisalo, Harold Snieder, Thorkild I A Sørensen, Tim D Spector, Jan A Staessen, Bandinelli Stefania, Unnur Thorsteinsdottir, Michael Stumvoll, Jean-Claude Tardif, Elena Tremoli, Jaakko Tuomilehto, André G Uitterlinden, Matti Uusitupa, André L M Verbeek, Sita H Vermeulen, Jorma S Viikari, Veronique Vitart, Henry Völzke, Peter Vollenweider, Gérard Waeber, Mark Walker, Henri Wallaschofski, Nicholas J Wareham, Hugh Watkins, Eleftheria Zeggini, CHARGE Consortium, DIAGRAM Consortium, GLGC Consortium, Global-BPGen Consortium, ICBP Consortium, MAGIC Consortium, Aravinda Chakravarti, Deborah J Clegg, L Adrienne Cupples, Penny Gordon-Larsen, Cashell E Jaquish, D C Rao, Goncalo R Abecasis, Themistocles L Assimes, Inês Barroso, Sonja I Berndt, Michael Boehnke, Panos Deloukas, Caroline S Fox, Leif C Groop, David J Hunter, Erik Ingelsson, Robert C Kaplan, Mark I McCarthy, Karen L Mohlke, Jeffrey R O'Connell, David Schlessinger, David P Strachan, Kari Stefansson, Cornelia M van Duijn, Joel N Hirschhorn, Cecilia M Lindgren, Iris M Heid, Kari E North, Ingrid B Borecki, Zoltán Kutalik, and Ruth J F Loos
Subjects: Genetics, QH426-470
Abstract: Genome-wide association studies (GWAS) have identified more than 100 genetic variants contributing to BMI, a measure of body size, or waist-to-hip ratio (adjusted for BMI, WHRadjBMI), a measure of body shape. Body size and shape change as people grow older and these changes differ substantially between men and women. To systematically screen for age- and/or sex-specific effects of genetic variants on BMI and WHRadjBMI, we performed meta-analyses of 114 studies (up to 320,485 individuals of European descent) with genome-wide chip and/or Metabochip data by the Genetic Investigation of Anthropometric Traits (GIANT) Consortium. Each study tested the association of up to ~2.8M SNPs with BMI and WHRadjBMI in four strata (men ≤50y, men >50y, women ≤50y, women >50y) and summary statistics were combined in stratum-specific meta-analyses. We then screened for variants that showed age-specific effects (G x AGE), sex-specific effects (G x SEX) or age-specific effects that differed between men and women (G x AGE x SEX). For BMI, we identified 15 loci (11 previously established for main effects, four novel) that showed significant (FDR
Published: 2015
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22. Genetic Determinants of Pelvic Organ Prolapse among African American and Hispanic Women in the Women's Health Initiative.

Author: Ayush Giri, Jennifer M Wu, Renee M Ward, Katherine E Hartmann, Amy J Park, Kari E North, Mariaelisa Graff, Robert B Wallace, Gihan Bareh, Lihong Qi, Mary J O'Sullivan, Alexander P Reiner, Todd L Edwards, and Digna R Velez Edwards
Subjects: Medicine, Science
Abstract: Current evidence suggests a multifactorial etiology to pelvic organ prolapse (POP), including genetic predisposition. We conducted a genome-wide association study of POP in African American (AA) and Hispanic (HP) women from the Women's Health Initiative Hormone Therapy study. Cases were defined as any POP (grades 1-3) or moderate/severe POP (grades 2-3), while controls had grade 0 POP. We performed race-specific multiple logistic regression analyses between SNPs imputed to 1000 genomes in relation to POP (grade 0 vs 1-3; grade 0 vs 2-3) adjusting for age at diagnosis, body mass index, parity, and genetic ancestry. There were 1274 controls and 1427 cases of any POP and 317 cases of moderate/severe POP. Although none of the analyses reached genome-wide significance (p
Published: 2015
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23. Large-scale genome-wide association studies and meta-analyses of longitudinal change in adult lung function.

Author: Wenbo Tang, Matthew Kowgier, Daan W Loth, María Soler Artigas, Bonnie R Joubert, Emily Hodge, Sina A Gharib, Albert V Smith, Ingo Ruczinski, Vilmundur Gudnason, Rasika A Mathias, Tamara B Harris, Nadia N Hansel, Lenore J Launer, Kathleen C Barnes, Joyanna G Hansen, Eva Albrecht, Melinda C Aldrich, Michael Allerhand, R Graham Barr, Guy G Brusselle, David J Couper, Ivan Curjuric, Gail Davies, Ian J Deary, Josée Dupuis, Tove Fall, Millennia Foy, Nora Franceschini, Wei Gao, Sven Gläser, Xiangjun Gu, Dana B Hancock, Joachim Heinrich, Albert Hofman, Medea Imboden, Erik Ingelsson, Alan James, Stefan Karrasch, Beate Koch, Stephen B Kritchevsky, Ashish Kumar, Lies Lahousse, Guo Li, Lars Lind, Cecilia Lindgren, Yongmei Liu, Kurt Lohman, Thomas Lumley, Wendy L McArdle, Bernd Meibohm, Andrew P Morris, Alanna C Morrison, Bill Musk, Kari E North, Lyle J Palmer, Nicole M Probst-Hensch, Bruce M Psaty, Fernando Rivadeneira, Jerome I Rotter, Holger Schulz, Lewis J Smith, Akshay Sood, John M Starr, David P Strachan, Alexander Teumer, André G Uitterlinden, Henry Völzke, Arend Voorman, Louise V Wain, Martin T Wells, Jemma B Wilk, O Dale Williams, Susan R Heckbert, Bruno H Stricker, Stephanie J London, Myriam Fornage, Martin D Tobin, George T O'Connor, Ian P Hall, and Patricia A Cassano
Subjects: Medicine, Science
Abstract: BACKGROUND:Genome-wide association studies (GWAS) have identified numerous loci influencing cross-sectional lung function, but less is known about genes influencing longitudinal change in lung function. METHODS:We performed GWAS of the rate of change in forced expiratory volume in the first second (FEV1) in 14 longitudinal, population-based cohort studies comprising 27,249 adults of European ancestry using linear mixed effects model and combined cohort-specific results using fixed effect meta-analysis to identify novel genetic loci associated with longitudinal change in lung function. Gene expression analyses were subsequently performed for identified genetic loci. As a secondary aim, we estimated the mean rate of decline in FEV1 by smoking pattern, irrespective of genotypes, across these 14 studies using meta-analysis. RESULTS:The overall meta-analysis produced suggestive evidence for association at the novel IL16/STARD5/TMC3 locus on chromosome 15 (P = 5.71 × 10(-7)). In addition, meta-analysis using the five cohorts with ≥3 FEV1 measurements per participant identified the novel ME3 locus on chromosome 11 (P = 2.18 × 10(-8)) at genome-wide significance. Neither locus was associated with FEV1 decline in two additional cohort studies. We confirmed gene expression of IL16, STARD5, and ME3 in multiple lung tissues. Publicly available microarray data confirmed differential expression of all three genes in lung samples from COPD patients compared with controls. Irrespective of genotypes, the combined estimate for FEV1 decline was 26.9, 29.2 and 35.7 mL/year in never, former, and persistent smokers, respectively. CONCLUSIONS:In this large-scale GWAS, we identified two novel genetic loci in association with the rate of change in FEV1 that harbor candidate genes with biologically plausible functional links to lung function.
Published: 2014
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24. Prospective associations of coronary heart disease loci in African Americans using the MetaboChip: the PAGE study.

Author: Nora Franceschini, Yijuan Hu, Alex P Reiner, Steven Buyske, Mike Nalls, Lisa R Yanek, Yun Li, Lucia A Hindorff, Shelley A Cole, Barbara V Howard, Jeanette M Stafford, Cara L Carty, Praveen Sethupathy, Lisa W Martin, Dan-Yu Lin, Karen C Johnson, Lewis C Becker, Kari E North, Abbas Dehghan, Joshua C Bis, Yongmei Liu, Philip Greenland, JoAnn E Manson, Nobuyo Maeda, Melissa Garcia, Tamara B Harris, Diane M Becker, Christopher O'Donnell, Gerardo Heiss, Charles Kooperberg, and Eric Boerwinkle
Subjects: Medicine, Science
Abstract: Coronary heart disease (CHD) is a leading cause of morbidity and mortality in African Americans. However, there is a paucity of studies assessing genetic determinants of CHD in African Americans. We examined the association of published variants in CHD loci with incident CHD, attempted to fine map these loci, and characterize novel variants influencing CHD risk in African Americans.Up to 8,201 African Americans (including 546 first CHD events) were genotyped using the MetaboChip array in the Atherosclerosis Risk in Communities (ARIC) study and Women's Health Initiative (WHI). We tested associations using Cox proportional hazard models in sex- and study-stratified analyses and combined results using meta-analysis. Among 44 validated CHD loci available in the array, we replicated and fine-mapped the SORT1 locus, and showed same direction of effects as reported in studies of individuals of European ancestry for SNPs in 22 additional published loci. We also identified a SNP achieving array wide significance (MYC: rs2070583, allele frequency 0.02, P = 8.1 × 10(-8)), but the association did not replicate in an additional 8,059 African Americans (577 events) from the WHI, HealthABC and GeneSTAR studies, and in a meta-analysis of 5 cohort studies of European ancestry (24,024 individuals including 1,570 cases of MI and 2,406 cases of CHD) from the CHARGE Consortium.Our findings suggest that some CHD loci previously identified in individuals of European ancestry may be relevant to incident CHD in African Americans.
Published: 2014
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25. Generalization and dilution of association results from European GWAS in populations of non-European ancestry: the PAGE study.

Author: Christopher S Carlson, Tara C Matise, Kari E North, Christopher A Haiman, Megan D Fesinmeyer, Steven Buyske, Fredrick R Schumacher, Ulrike Peters, Nora Franceschini, Marylyn D Ritchie, David J Duggan, Kylee L Spencer, Logan Dumitrescu, Charles B Eaton, Fridtjof Thomas, Alicia Young, Cara Carty, Gerardo Heiss, Loic Le Marchand, Dana C Crawford, Lucia A Hindorff, Charles L Kooperberg, and PAGE Consortium
Subjects: Biology (General), QH301-705.5
Abstract: The vast majority of genome-wide association study (GWAS) findings reported to date are from populations with European Ancestry (EA), and it is not yet clear how broadly the genetic associations described will generalize to populations of diverse ancestry. The Population Architecture Using Genomics and Epidemiology (PAGE) study is a consortium of multi-ancestry, population-based studies formed with the objective of refining our understanding of the genetic architecture of common traits emerging from GWAS. In the present analysis of five common diseases and traits, including body mass index, type 2 diabetes, and lipid levels, we compare direction and magnitude of effects for GWAS-identified variants in multiple non-EA populations against EA findings. We demonstrate that, in all populations analyzed, a significant majority of GWAS-identified variants have allelic associations in the same direction as in EA, with none showing a statistically significant effect in the opposite direction, after adjustment for multiple testing. However, 25% of tagSNPs identified in EA GWAS have significantly different effect sizes in at least one non-EA population, and these differential effects were most frequent in African Americans where all differential effects were diluted toward the null. We demonstrate that differential LD between tagSNPs and functional variants within populations contributes significantly to dilute effect sizes in this population. Although most variants identified from GWAS in EA populations generalize to all non-EA populations assessed, genetic models derived from GWAS findings in EA may generate spurious results in non-EA populations due to differential effect sizes. Regardless of the origin of the differential effects, caution should be exercised in applying any genetic risk prediction model based on tagSNPs outside of the ancestry group in which it was derived. Models based directly on functional variation may generalize more robustly, but the identification of functional variants remains challenging.
Published: 2013
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26. Sex-stratified genome-wide association studies including 270,000 individuals show sexual dimorphism in genetic loci for anthropometric traits.

Author: Joshua C Randall, Thomas W Winkler, Zoltán Kutalik, Sonja I Berndt, Anne U Jackson, Keri L Monda, Tuomas O Kilpeläinen, Tõnu Esko, Reedik Mägi, Shengxu Li, Tsegaselassie Workalemahu, Mary F Feitosa, Damien C Croteau-Chonka, Felix R Day, Tove Fall, Teresa Ferreira, Stefan Gustafsson, Adam E Locke, Iain Mathieson, Andre Scherag, Sailaja Vedantam, Andrew R Wood, Liming Liang, Valgerdur Steinthorsdottir, Gudmar Thorleifsson, Emmanouil T Dermitzakis, Antigone S Dimas, Fredrik Karpe, Josine L Min, George Nicholson, Deborah J Clegg, Thomas Person, Jon P Krohn, Sabrina Bauer, Christa Buechler, Kristina Eisinger, DIAGRAM Consortium, Amélie Bonnefond, Philippe Froguel, MAGIC Investigators, Jouke-Jan Hottenga, Inga Prokopenko, Lindsay L Waite, Tamara B Harris, Albert Vernon Smith, Alan R Shuldiner, Wendy L McArdle, Mark J Caulfield, Patricia B Munroe, Henrik Grönberg, Yii-Der Ida Chen, Guo Li, Jacques S Beckmann, Toby Johnson, Unnur Thorsteinsdottir, Maris Teder-Laving, Kay-Tee Khaw, Nicholas J Wareham, Jing Hua Zhao, Najaf Amin, Ben A Oostra, Aldi T Kraja, Michael A Province, L Adrienne Cupples, Nancy L Heard-Costa, Jaakko Kaprio, Samuli Ripatti, Ida Surakka, Francis S Collins, Jouko Saramies, Jaakko Tuomilehto, Antti Jula, Veikko Salomaa, Jeanette Erdmann, Christian Hengstenberg, Christina Loley, Heribert Schunkert, Claudia Lamina, H Erich Wichmann, Eva Albrecht, Christian Gieger, Andrew A Hicks, Asa Johansson, Peter P Pramstaller, Sekar Kathiresan, Elizabeth K Speliotes, Brenda Penninx, Anna-Liisa Hartikainen, Marjo-Riitta Jarvelin, Ulf Gyllensten, Dorret I Boomsma, Harry Campbell, James F Wilson, Stephen J Chanock, Martin Farrall, Anuj Goel, Carolina Medina-Gomez, Fernando Rivadeneira, Karol Estrada, André G Uitterlinden, Albert Hofman, M Carola Zillikens, Martin den Heijer, Lambertus A Kiemeney, Andrea Maschio, Per Hall, Jonathan Tyrer, Alexander Teumer, Henry Völzke, Peter Kovacs, Anke Tönjes, Massimo Mangino, Tim D Spector, Caroline Hayward, Igor Rudan, Alistair S Hall, Nilesh J Samani, Antony Paul Attwood, Jennifer G Sambrook, Joseph Hung, Lyle J Palmer, Marja-Liisa Lokki, Juha Sinisalo, Gabrielle Boucher, Heikki Huikuri, Mattias Lorentzon, Claes Ohlsson, Niina Eklund, Johan G Eriksson, Cristina Barlassina, Carlo Rivolta, Ilja M Nolte, Harold Snieder, Melanie M Van der Klauw, Jana V Van Vliet-Ostaptchouk, Pablo V Gejman, Jianxin Shi, Kevin B Jacobs, Zhaoming Wang, Stephan J L Bakker, Irene Mateo Leach, Gerjan Navis, Pim van der Harst, Nicholas G Martin, Sarah E Medland, Grant W Montgomery, Jian Yang, Daniel I Chasman, Paul M Ridker, Lynda M Rose, Terho Lehtimäki, Olli Raitakari, Devin Absher, Carlos Iribarren, Hanneke Basart, Kees G Hovingh, Elina Hyppönen, Chris Power, Denise Anderson, John P Beilby, Jennie Hui, Jennifer Jolley, Hendrik Sager, Stefan R Bornstein, Peter E H Schwarz, Kati Kristiansson, Markus Perola, Jaana Lindström, Amy J Swift, Matti Uusitupa, Mustafa Atalay, Timo A Lakka, Rainer Rauramaa, Jennifer L Bolton, Gerry Fowkes, Ross M Fraser, Jackie F Price, Krista Fischer, Kaarel Krjutå Kov, Andres Metspalu, Evelin Mihailov, Claudia Langenberg, Jian'an Luan, Ken K Ong, Peter S Chines, Sirkka M Keinanen-Kiukaanniemi, Timo E Saaristo, Sarah Edkins, Paul W Franks, Göran Hallmans, Dmitry Shungin, Andrew David Morris, Colin N A Palmer, Raimund Erbel, Susanne Moebus, Markus M Nöthen, Sonali Pechlivanis, Kristian Hveem, Narisu Narisu, Anders Hamsten, Steve E Humphries, Rona J Strawbridge, Elena Tremoli, Harald Grallert, Barbara Thorand, Thomas Illig, Wolfgang Koenig, Martina Müller-Nurasyid, Annette Peters, Bernhard O Boehm, Marcus E Kleber, Winfried März, Bernhard R Winkelmann, Johanna Kuusisto, Markku Laakso, Dominique Arveiler, Giancarlo Cesana, Kari Kuulasmaa, Jarmo Virtamo, John W G Yarnell, Diana Kuh, Andrew Wong, Lars Lind, Ulf de Faire, Bruna Gigante, Patrik K E Magnusson, Nancy L Pedersen, George Dedoussis, Maria Dimitriou, Genovefa Kolovou, Stavroula Kanoni, Kathleen Stirrups, Lori L Bonnycastle, Inger Njølstad, Tom Wilsgaard, Andrea Ganna, Emil Rehnberg, Aroon Hingorani, Mika Kivimaki, Meena Kumari, Themistocles L Assimes, Inês Barroso, Michael Boehnke, Ingrid B Borecki, Panos Deloukas, Caroline S Fox, Timothy Frayling, Leif C Groop, Talin Haritunians, David Hunter, Erik Ingelsson, Robert Kaplan, Karen L Mohlke, Jeffrey R O'Connell, David Schlessinger, David P Strachan, Kari Stefansson, Cornelia M van Duijn, Gonçalo R Abecasis, Mark I McCarthy, Joel N Hirschhorn, Lu Qi, Ruth J F Loos, Cecilia M Lindgren, Kari E North, and Iris M Heid
Subjects: Genetics, QH426-470
Abstract: Given the anthropometric differences between men and women and previous evidence of sex-difference in genetic effects, we conducted a genome-wide search for sexually dimorphic associations with height, weight, body mass index, waist circumference, hip circumference, and waist-to-hip-ratio (133,723 individuals) and took forward 348 SNPs into follow-up (additional 137,052 individuals) in a total of 94 studies. Seven loci displayed significant sex-difference (FDR
Published: 2013
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27. Trans-ethnic fine-mapping of lipid loci identifies population-specific signals and allelic heterogeneity that increases the trait variance explained.

Author: Ying Wu, Lindsay L Waite, Anne U Jackson, Wayne H-H Sheu, Steven Buyske, Devin Absher, Donna K Arnett, Eric Boerwinkle, Lori L Bonnycastle, Cara L Carty, Iona Cheng, Barbara Cochran, Damien C Croteau-Chonka, Logan Dumitrescu, Charles B Eaton, Nora Franceschini, Xiuqing Guo, Brian E Henderson, Lucia A Hindorff, Eric Kim, Leena Kinnunen, Pirjo Komulainen, Wen-Jane Lee, Loic Le Marchand, Yi Lin, Jaana Lindström, Oddgeir Lingaas-Holmen, Sabrina L Mitchell, Narisu Narisu, Jennifer G Robinson, Fred Schumacher, Alena Stančáková, Jouko Sundvall, Yun-Ju Sung, Amy J Swift, Wen-Chang Wang, Lynne Wilkens, Tom Wilsgaard, Alicia M Young, Linda S Adair, Christie M Ballantyne, Petra Bůžková, Aravinda Chakravarti, Francis S Collins, David Duggan, Alan B Feranil, Low-Tone Ho, Yi-Jen Hung, Steven C Hunt, Kristian Hveem, Jyh-Ming J Juang, Antero Y Kesäniemi, Johanna Kuusisto, Markku Laakso, Timo A Lakka, I-Te Lee, Mark F Leppert, Tara C Matise, Leena Moilanen, Inger Njølstad, Ulrike Peters, Thomas Quertermous, Rainer Rauramaa, Jerome I Rotter, Jouko Saramies, Jaakko Tuomilehto, Matti Uusitupa, Tzung-Dau Wang, Michael Boehnke, Christopher A Haiman, Yii-Der I Chen, Charles Kooperberg, Themistocles L Assimes, Dana C Crawford, Chao A Hsiung, Kari E North, and Karen L Mohlke
Subjects: Genetics, QH426-470
Abstract: Genome-wide association studies (GWAS) have identified ~100 loci associated with blood lipid levels, but much of the trait heritability remains unexplained, and at most loci the identities of the trait-influencing variants remain unknown. We conducted a trans-ethnic fine-mapping study at 18, 22, and 18 GWAS loci on the Metabochip for their association with triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C), respectively, in individuals of African American (n = 6,832), East Asian (n = 9,449), and European (n = 10,829) ancestry. We aimed to identify the variants with strongest association at each locus, identify additional and population-specific signals, refine association signals, and assess the relative significance of previously described functional variants. Among the 58 loci, 33 exhibited evidence of association at P
Published: 2013
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28. A systematic mapping approach of 16q12.2/FTO and BMI in more than 20,000 African Americans narrows in on the underlying functional variation: results from the Population Architecture using Genomics and Epidemiology (PAGE) study.

Author: Ulrike Peters, Kari E North, Praveen Sethupathy, Steve Buyske, Jeff Haessler, Shuo Jiao, Megan D Fesinmeyer, Rebecca D Jackson, Lew H Kuller, Aleksandar Rajkovic, Unhee Lim, Iona Cheng, Fred Schumacher, Lynne Wilkens, Rongling Li, Keri Monda, Georg Ehret, Khanh-Dung H Nguyen, Richard Cooper, Cora E Lewis, Mark Leppert, Marguerite R Irvin, C Charles Gu, Denise Houston, Petra Buzkova, Marylyn Ritchie, Tara C Matise, Loic Le Marchand, Lucia A Hindorff, Dana C Crawford, Christopher A Haiman, and Charles Kooperberg
Subjects: Genetics, QH426-470
Abstract: Genetic variants in intron 1 of the fat mass- and obesity-associated (FTO) gene have been consistently associated with body mass index (BMI) in Europeans. However, follow-up studies in African Americans (AA) have shown no support for some of the most consistently BMI-associated FTO index single nucleotide polymorphisms (SNPs). This is most likely explained by different race-specific linkage disequilibrium (LD) patterns and lower correlation overall in AA, which provides the opportunity to fine-map this region and narrow in on the functional variant. To comprehensively explore the 16q12.2/FTO locus and to search for second independent signals in the broader region, we fine-mapped a 646-kb region, encompassing the large FTO gene and the flanking gene RPGRIP1L by investigating a total of 3,756 variants (1,529 genotyped and 2,227 imputed variants) in 20,488 AAs across five studies. We observed associations between BMI and variants in the known FTO intron 1 locus: the SNP with the most significant p-value, rs56137030 (8.3 × 10(-6)) had not been highlighted in previous studies. While rs56137030was correlated at r(2)>0.5 with 103 SNPs in Europeans (including the GWAS index SNPs), this number was reduced to 28 SNPs in AA. Among rs56137030 and the 28 correlated SNPs, six were located within candidate intronic regulatory elements, including rs1421085, for which we predicted allele-specific binding affinity for the transcription factor CUX1, which has recently been implicated in the regulation of FTO. We did not find strong evidence for a second independent signal in the broader region. In summary, this large fine-mapping study in AA has substantially reduced the number of common alleles that are likely to be functional candidates of the known FTO locus. Importantly our study demonstrated that comprehensive fine-mapping in AA provides a powerful approach to narrow in on the functional candidate(s) underlying the initial GWAS findings in European populations.
Published: 2013
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29. Genome-wide association of body fat distribution in African ancestry populations suggests new loci.

Author: Ching-Ti Liu, Keri L Monda, Kira C Taylor, Leslie Lange, Ellen W Demerath, Walter Palmas, Mary K Wojczynski, Jaclyn C Ellis, Mara Z Vitolins, Simin Liu, George J Papanicolaou, Marguerite R Irvin, Luting Xue, Paula J Griffin, Michael A Nalls, Adebowale Adeyemo, Jiankang Liu, Guo Li, Edward A Ruiz-Narvaez, Wei-Min Chen, Fang Chen, Brian E Henderson, Robert C Millikan, Christine B Ambrosone, Sara S Strom, Xiuqing Guo, Jeanette S Andrews, Yan V Sun, Thomas H Mosley, Lisa R Yanek, Daniel Shriner, Talin Haritunians, Jerome I Rotter, Elizabeth K Speliotes, Megan Smith, Lynn Rosenberg, Josyf Mychaleckyj, Uma Nayak, Ida Spruill, W Timothy Garvey, Curtis Pettaway, Sarah Nyante, Elisa V Bandera, Angela F Britton, Alan B Zonderman, Laura J Rasmussen-Torvik, Yii-Der Ida Chen, Jingzhong Ding, Kurt Lohman, Stephen B Kritchevsky, Wei Zhao, Patricia A Peyser, Sharon L R Kardia, Edmond Kabagambe, Ulrich Broeckel, Guanjie Chen, Jie Zhou, Sylvia Wassertheil-Smoller, Marian L Neuhouser, Evadnie Rampersaud, Bruce Psaty, Charles Kooperberg, Joann E Manson, Lewis H Kuller, Heather M Ochs-Balcom, Karen C Johnson, Lara Sucheston, Jose M Ordovas, Julie R Palmer, Christopher A Haiman, Barbara McKnight, Barbara V Howard, Diane M Becker, Lawrence F Bielak, Yongmei Liu, Matthew A Allison, Struan F A Grant, Gregory L Burke, Sanjay R Patel, Pamela J Schreiner, Ingrid B Borecki, Michele K Evans, Herman Taylor, Michele M Sale, Virginia Howard, Christopher S Carlson, Charles N Rotimi, Mary Cushman, Tamara B Harris, Alexander P Reiner, L Adrienne Cupples, Kari E North, and Caroline S Fox
Subjects: Genetics, QH426-470
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
Published: 2013
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30. Fine-mapping and initial characterization of QT interval loci in African Americans.

Author: Christy L Avery, Praveen Sethupathy, Steven Buyske, Qianchuan He, Dan-Yu Lin, Dan E Arking, Cara L Carty, David Duggan, Megan D Fesinmeyer, Lucia A Hindorff, Janina M Jeff, Liviu Klein, Kristen K Patton, Ulrike Peters, Ralph V Shohet, Nona Sotoodehnia, Alicia M Young, Charles Kooperberg, Christopher A Haiman, Karen L Mohlke, Eric A Whitsel, and Kari E North
Subjects: Genetics, QH426-470
Abstract: The QT interval (QT) is heritable and its prolongation is a risk factor for ventricular tachyarrhythmias and sudden death. Most genetic studies of QT have examined European ancestral populations; however, the increased genetic diversity in African Americans provides opportunities to narrow association signals and identify population-specific variants. We therefore evaluated 6,670 SNPs spanning eleven previously identified QT loci in 8,644 African American participants from two Population Architecture using Genomics and Epidemiology (PAGE) studies: the Atherosclerosis Risk in Communities study and Women's Health Initiative Clinical Trial. Of the fifteen known independent QT variants at the eleven previously identified loci, six were significantly associated with QT in African American populations (P≤1.20×10(-4)): ATP1B1, PLN1, KCNQ1, NDRG4, and two NOS1AP independent signals. We also identified three population-specific signals significantly associated with QT in African Americans (P≤1.37×10(-5)): one at NOS1AP and two at ATP1B1. Linkage disequilibrium (LD) patterns in African Americans assisted in narrowing the region likely to contain the functional variants for several loci. For example, African American LD patterns showed that 0 SNPs were in LD with NOS1AP signal rs12143842, compared with European LD patterns that indicated 87 SNPs, which spanned 114.2 Kb, were in LD with rs12143842. Finally, bioinformatic-based characterization of the nine African American signals pointed to functional candidates located exclusively within non-coding regions, including predicted binding sites for transcription factors such as TBX5, which has been implicated in cardiac structure and conductance. In this detailed evaluation of QT loci, we identified several African Americans SNPs that better define the association with QT and successfully narrowed intervals surrounding established loci. These results demonstrate that the same loci influence variation in QT across multiple populations, that novel signals exist in African Americans, and that the SNPs identified as strong candidates for functional evaluation implicate gene regulatory dysfunction in QT prolongation.
Published: 2012
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31. Evaluation of the metabochip genotyping array in African Americans and implications for fine mapping of GWAS-identified loci: the PAGE study.

Author: Steven Buyske, Ying Wu, Cara L Carty, Iona Cheng, Themistocles L Assimes, Logan Dumitrescu, Lucia A Hindorff, Sabrina Mitchell, Jose Luis Ambite, Eric Boerwinkle, Petra Buzkova, Chris S Carlson, Barbara Cochran, David Duggan, Charles B Eaton, Megan D Fesinmeyer, Nora Franceschini, Jeffrey Haessler, Nancy Jenny, Hyun Min Kang, Charles Kooperberg, Yi Lin, Loic Le Marchand, Tara C Matise, Jennifer G Robinson, Carlos Rodriguez, Fredrick R Schumacher, Benjamin F Voight, Alicia Young, Teri A Manolio, Karen L Mohlke, Christopher A Haiman, Ulrike Peters, Dana C Crawford, and Kari E North
Subjects: Medicine, Science
Abstract: The Metabochip is a custom genotyping array designed for replication and fine mapping of metabolic, cardiovascular, and anthropometric trait loci and includes low frequency variation content identified from the 1000 Genomes Project. It has 196,725 SNPs concentrated in 257 genomic regions. We evaluated the Metabochip in 5,863 African Americans; 89% of all SNPs passed rigorous quality control with a call rate of 99.9%. Two examples illustrate the value of fine mapping with the Metabochip in African-ancestry populations. At CELSR2/PSRC1/SORT1, we found the strongest associated SNP for LDL-C to be rs12740374 (p = 3.5 × 10(-11)), a SNP indistinguishable from multiple SNPs in European ancestry samples due to high correlation. Its distinct signal supports functional studies elsewhere suggesting a causal role in LDL-C. At CETP we found rs17231520, with risk allele frequency 0.07 in African Americans, to be associated with HDL-C (p = 7.2 × 10(-36)). This variant is very rare in Europeans and not tagged in common GWAS arrays, but was identified as associated with HDL-C in African Americans in a single-gene study. Our results, one narrowing the risk interval and the other revealing an associated variant not found in Europeans, demonstrate the advantages of high-density genotyping of common and rare variation for fine mapping of trait loci in African American samples.
Published: 2012
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32. Genome-wide joint meta-analysis of SNP and SNP-by-smoking interaction identifies novel loci for pulmonary function.

Author: Dana B Hancock, María Soler Artigas, Sina A Gharib, Amanda Henry, Ani Manichaikul, Adaikalavan Ramasamy, Daan W Loth, Medea Imboden, Beate Koch, Wendy L McArdle, Albert V Smith, Joanna Smolonska, Akshay Sood, Wenbo Tang, Jemma B Wilk, Guangju Zhai, Jing Hua Zhao, Hugues Aschard, Kristin M Burkart, Ivan Curjuric, Mark Eijgelsheim, Paul Elliott, Xiangjun Gu, Tamara B Harris, Christer Janson, Georg Homuth, Pirro G Hysi, Jason Z Liu, Laura R Loehr, Kurt Lohman, Ruth J F Loos, Alisa K Manning, Kristin D Marciante, Ma'en Obeidat, Dirkje S Postma, Melinda C Aldrich, Guy G Brusselle, Ting-hsu Chen, Gudny Eiriksdottir, Nora Franceschini, Joachim Heinrich, Jerome I Rotter, Cisca Wijmenga, O Dale Williams, Amy R Bentley, Albert Hofman, Cathy C Laurie, Thomas Lumley, Alanna C Morrison, Bonnie R Joubert, Fernando Rivadeneira, David J Couper, Stephen B Kritchevsky, Yongmei Liu, Matthias Wjst, Louise V Wain, Judith M Vonk, André G Uitterlinden, Thierry Rochat, Stephen S Rich, Bruce M Psaty, George T O'Connor, Kari E North, Daniel B Mirel, Bernd Meibohm, Lenore J Launer, Kay-Tee Khaw, Anna-Liisa Hartikainen, Christopher J Hammond, Sven Gläser, Jonathan Marchini, Peter Kraft, Nicholas J Wareham, Henry Völzke, Bruno H C Stricker, Timothy D Spector, Nicole M Probst-Hensch, Deborah Jarvis, Marjo-Riitta Jarvelin, Susan R Heckbert, Vilmundur Gudnason, H Marike Boezen, R Graham Barr, Patricia A Cassano, David P Strachan, Myriam Fornage, Ian P Hall, Josée Dupuis, Martin D Tobin, and Stephanie J London
Subjects: Genetics, QH426-470
Abstract: Genome-wide association studies have identified numerous genetic loci for spirometic measures of pulmonary function, forced expiratory volume in one second (FEV(1)), and its ratio to forced vital capacity (FEV(1)/FVC). Given that cigarette smoking adversely affects pulmonary function, we conducted genome-wide joint meta-analyses (JMA) of single nucleotide polymorphism (SNP) and SNP-by-smoking (ever-smoking or pack-years) associations on FEV(1) and FEV(1)/FVC across 19 studies (total N = 50,047). We identified three novel loci not previously associated with pulmonary function. SNPs in or near DNER (smallest P(JMA = )5.00×10(-11)), HLA-DQB1 and HLA-DQA2 (smallest P(JMA = )4.35×10(-9)), and KCNJ2 and SOX9 (smallest P(JMA = )1.28×10(-8)) were associated with FEV(1)/FVC or FEV(1) in meta-analysis models including SNP main effects, smoking main effects, and SNP-by-smoking (ever-smoking or pack-years) interaction. The HLA region has been widely implicated for autoimmune and lung phenotypes, unlike the other novel loci, which have not been widely implicated. We evaluated DNER, KCNJ2, and SOX9 and found them to be expressed in human lung tissue. DNER and SOX9 further showed evidence of differential expression in human airway epithelium in smokers compared to non-smokers. Our findings demonstrated that joint testing of SNP and SNP-by-environment interaction identified novel loci associated with complex traits that are missed when considering only the genetic main effects.
Published: 2012
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33. Identification, replication, and fine-mapping of Loci associated with adult height in individuals of african ancestry.

Author: Amidou N'Diaye, Gary K Chen, Cameron D Palmer, Bing Ge, Bamidele Tayo, Rasika A Mathias, Jingzhong Ding, Michael A Nalls, Adebowale Adeyemo, Véronique Adoue, Christine B Ambrosone, Larry Atwood, Elisa V Bandera, Lewis C Becker, Sonja I Berndt, Leslie Bernstein, William J Blot, Eric Boerwinkle, Angela Britton, Graham Casey, Stephen J Chanock, Ellen Demerath, Sandra L Deming, W Ryan Diver, Caroline Fox, Tamara B Harris, Dena G Hernandez, Jennifer J Hu, Sue A Ingles, Esther M John, Craig Johnson, Brendan Keating, Rick A Kittles, Laurence N Kolonel, Stephen B Kritchevsky, Loic Le Marchand, Kurt Lohman, Jiankang Liu, Robert C Millikan, Adam Murphy, Solomon Musani, Christine Neslund-Dudas, Kari E North, Sarah Nyante, Adesola Ogunniyi, Elaine A Ostrander, George Papanicolaou, Sanjay Patel, Curtis A Pettaway, Michael F Press, Susan Redline, Jorge L Rodriguez-Gil, Charles Rotimi, Benjamin A Rybicki, Babatunde Salako, Pamela J Schreiner, Lisa B Signorello, Andrew B Singleton, Janet L Stanford, Alex H Stram, Daniel O Stram, Sara S Strom, Bhoom Suktitipat, Michael J Thun, John S Witte, Lisa R Yanek, Regina G Ziegler, Wei Zheng, Xiaofeng Zhu, Joseph M Zmuda, Alan B Zonderman, Michele K Evans, Yongmei Liu, Diane M Becker, Richard S Cooper, Tomi Pastinen, Brian E Henderson, Joel N Hirschhorn, Guillaume Lettre, and Christopher A Haiman
Subjects: Genetics, QH426-470
Abstract: Adult height is a classic polygenic trait of high heritability (h(2) approximately 0.8). More than 180 single nucleotide polymorphisms (SNPs), identified mostly in populations of European descent, are associated with height. These variants convey modest effects and explain approximately10% of the variance in height. Discovery efforts in other populations, while limited, have revealed loci for height not previously implicated in individuals of European ancestry. Here, we performed a meta-analysis of genome-wide association (GWA) results for adult height in 20,427 individuals of African ancestry with replication in up to 16,436 African Americans. We found two novel height loci (Xp22-rs12393627, P = 3.4×10(-12) and 2p14-rs4315565, P = 1.2×10(-8)). As a group, height associations discovered in European-ancestry samples replicate in individuals of African ancestry (P = 1.7×10(-4) for overall replication). Fine-mapping of the European height loci in African-ancestry individuals showed an enrichment of SNPs that are associated with expression of nearby genes when compared to the index European height SNPs (P
Published: 2011
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34. A phenomics-based strategy identifies loci on APOC1, BRAP, and PLCG1 associated with metabolic syndrome phenotype domains.

Author: Christy L Avery, Qianchuan He, Kari E North, Jose L Ambite, Eric Boerwinkle, Myriam Fornage, Lucia A Hindorff, Charles Kooperberg, James B Meigs, James S Pankow, Sarah A Pendergrass, Bruce M Psaty, Marylyn D Ritchie, Jerome I Rotter, Kent D Taylor, Lynne R Wilkens, Gerardo Heiss, and Dan Yu Lin
Subjects: Genetics, QH426-470
Abstract: Despite evidence of the clustering of metabolic syndrome components, current approaches for identifying unifying genetic mechanisms typically evaluate clinical categories that do not provide adequate etiological information. Here, we used data from 19,486 European American and 6,287 African American Candidate Gene Association Resource Consortium participants to identify loci associated with the clustering of metabolic phenotypes. Six phenotype domains (atherogenic dyslipidemia, vascular dysfunction, vascular inflammation, pro-thrombotic state, central obesity, and elevated plasma glucose) encompassing 19 quantitative traits were examined. Principal components analysis was used to reduce the dimension of each domain such that >55% of the trait variance was represented within each domain. We then applied a statistically efficient and computational feasible multivariate approach that related eight principal components from the six domains to 250,000 imputed SNPs using an additive genetic model and including demographic covariates. In European Americans, we identified 606 genome-wide significant SNPs representing 19 loci. Many of these loci were associated with only one trait domain, were consistent with results in African Americans, and overlapped with published findings, for instance central obesity and FTO. However, our approach, which is applicable to any set of interval scale traits that is heritable and exhibits evidence of phenotypic clustering, identified three new loci in or near APOC1, BRAP, and PLCG1, which were associated with multiple phenotype domains. These pleiotropic loci may help characterize metabolic dysregulation and identify targets for intervention.
Published: 2011
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35. Genetic determinants of lipid traits in diverse populations from the population architecture using genomics and epidemiology (PAGE) study.

Author: Logan Dumitrescu, Cara L Carty, Kira Taylor, Fredrick R Schumacher, Lucia A Hindorff, José L Ambite, Garnet Anderson, Lyle G Best, Kristin Brown-Gentry, Petra Bůžková, Christopher S Carlson, Barbara Cochran, Shelley A Cole, Richard B Devereux, Dave Duggan, Charles B Eaton, Myriam Fornage, Nora Franceschini, Jeff Haessler, Barbara V Howard, Karen C Johnson, Sandra Laston, Laurence N Kolonel, Elisa T Lee, Jean W MacCluer, Teri A Manolio, Sarah A Pendergrass, Miguel Quibrera, Ralph V Shohet, Lynne R Wilkens, Christopher A Haiman, Loïc Le Marchand, Steven Buyske, Charles Kooperberg, Kari E North, and Dana C Crawford
Subjects: Genetics, QH426-470
Abstract: For the past five years, genome-wide association studies (GWAS) have identified hundreds of common variants associated with human diseases and traits, including high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglyceride (TG) levels. Approximately 95 loci associated with lipid levels have been identified primarily among populations of European ancestry. The Population Architecture using Genomics and Epidemiology (PAGE) study was established in 2008 to characterize GWAS-identified variants in diverse population-based studies. We genotyped 49 GWAS-identified SNPs associated with one or more lipid traits in at least two PAGE studies and across six racial/ethnic groups. We performed a meta-analysis testing for SNP associations with fasting HDL-C, LDL-C, and ln(TG) levels in self-identified European American (~20,000), African American (~9,000), American Indian (~6,000), Mexican American/Hispanic (~2,500), Japanese/East Asian (~690), and Pacific Islander/Native Hawaiian (~175) adults, regardless of lipid-lowering medication use. We replicated 55 of 60 (92%) SNP associations tested in European Americans at p
Published: 2011
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36. Genome-wide detection of allele specific copy number variation associated with insulin resistance in African Americans from the HyperGEN study.

Author: Marguerite R Irvin, Nathan E Wineinger, Treva K Rice, Nicholas M Pajewski, Edmond K Kabagambe, Charles C Gu, Jim Pankow, Kari E North, Jemma B Wilk, Barry I Freedman, Nora Franceschini, Uli Broeckel, Hemant K Tiwari, and Donna K Arnett
Subjects: Medicine, Science
Abstract: African Americans have been understudied in genome wide association studies of diabetes and related traits. In the current study, we examined the joint association of single nucleotide polymorphisms (SNPs) and copy number variants (CNVs) with fasting insulin and an index of insulin resistance (HOMA-IR) in the HyperGEN study, a family based study with proband ascertainment for hypertension. This analysis is restricted to 1,040 African Americans without diabetes. We generated allele specific CNV genotypes at 872,243 autosomal loci using Birdsuite, a freely available multi-stage program. Joint tests of association for SNPs and CNVs were performed using linear mixed models adjusting for covariates and familial relationships. Our results highlight SNPs associated with fasting insulin and HOMA-IR (rs6576507 and rs8026527, 3.7*10(-7)≤P≤1.1*10(-5)) near ATPase, class V, type 10A (ATP10A), and the L Type voltage dependent calcium channel (CACNA1D, rs1401492, P≤5.2*10(-6)). ATP10A belongs to a family of aminophospholipid-transporting ATPases and has been associated with type 2 diabetes in mice. CACNA1D has been linked to pancreatic beta cell generation in mice. The two most significant copy variable markers (rs10277702 and rs361367; P
Published: 2011
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37. Association of rs780094 in GCKR with metabolic traits and incident diabetes and cardiovascular disease: the ARIC Study.

Author: Mark Bi, Wen Hong Linda Kao, Eric Boerwinkle, Ron C Hoogeveen, Laura J Rasmussen-Torvik, Brad C Astor, Kari E North, Josef Coresh, and Anna Köttgen
Subjects: Medicine, Science
Abstract: The minor T-allele of rs780094 in the glucokinase regulator gene (GCKR) associates with a number of metabolic traits including higher triglyceride levels and improved glycemic regulation in study populations of mostly European ancestry. Using data from the Atherosclerosis Risk in Communities (ARIC) Study, we sought to replicate these findings, examine them in a large population-based sample of African American study participants, and to investigate independent associations with other metabolic traits in order to determine if variation in GKCR contributes to their observed clustering. In addition, we examined the association of rs780094 with incident diabetes, coronary heart disease (CHD), and stroke over up mean follow-up times of 8, 15, and 15 years, respectively.Race-stratified analyses were conducted among 10,929 white and 3,960 black participants aged 45-64 at baseline assuming an additive genetic model and using linear and logistic regression and Cox proportional hazards models.Previous findings replicated among white participants in multivariable adjusted models: the T-allele of rs780094 was associated with lower fasting glucose (p = 10(-7)) and insulin levels (p = 10(-6)), lower insulin resistance (HOMA-IR, p = 10(-9)), less prevalent diabetes (p = 10(-6)), and higher CRP (p = 10(-8)), 2-h postprandial glucose (OGTT, p = 10(-6)), and triglyceride levels (p = 10(-31)). Moreover, the T-allele was independently associated with higher HDL cholesterol levels (p = 0.022), metabolic syndrome prevalence (p = 0.043), and lower beta-cell function measured as HOMA-B (p = 0.011). Among black participants, the T-allele was associated only with higher triglyceride levels (p = 0.004) and lower insulin levels (p = 0.002) and HOMA-IR (p = 0.013). Prospectively, the T-allele was associated with reduced incidence of diabetes (p = 10(-4)) among white participants, but not with incidence of CHD or stroke.Our findings indicate rs780094 has independent associations with multiple metabolic traits as well as incident diabetes, but not incident CHD or stroke. The magnitude of association between the SNP and most traits was of lower magnitude among African American compared to white participants.
Published: 2010
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38. Regulation of CCR5 expression in human placenta: insights from a study of mother-to-child transmission of HIV in Malawi.

Author: Bonnie R Joubert, Nora Franceschini, Victor Mwapasa, Kari E North, and Steven R Meshnick
Subjects: Medicine, Science
Abstract: Human promoter polymorphisms in the chemokine co-receptor 5 gene (CCR5) have been noted for association with mother-to-child transmission of HIV (HIV MTCT) as well as reduced receptor expression in vitro, but have not been clearly associated with CCR5 expression in vivo. Placental expression of CCR5 may be influenced by such polymorphisms as well as other in vivo regulatory factors.We evaluated the associations between infant CCR5 polymorphisms, measures of maternal infection, and placental expression of CCR5 among mother-infant pairs in Blantyre, Malawi. RNA was extracted from placental tissue and used in multiplex real-time PCR to quantify gene expression. Through linear regression, we observed that CCR5-2554T (beta = -0.67, 95% CI = -1.23, -0.11) and -2132T (beta = -0.75, 95% CI = -0.131, -0.18) were significantly associated with reduced placental expression of CCR5. An incremental increase in CCR5 expression was observed for incremental increases in expression of two heparan sulfate genes involved in viral infection, HS3ST3A1 (beta = 0.27, 95% CI = 0.18, 0.35) and HS3ST3B1 (beta = 0.11, 95% CI = 0.06, 0.18). Among HIV infected mothers, an incremental increase in maternal HIV viral load was also associated with higher CCR5 expression (beta = 0.76, 95% CI = 0.12, 1.39). Maternal HIV status had no overall effect (beta = 0.072, 95% CI = -0.57, -0.72). Higher CCR5 expression was observed for mothers with malaria but was not statistically significant (beta = 0.37, 95% CI = -0.43, 1.18).These results provide in vivo evidence for genetic and environmental factors involved in the regulation of CCR5 expression in the placenta. Our findings also suggest that the measurement of placental expression of CCR5 alone is not an adequate indicator of the risk of mother-to-child transmission of HIV.
Published: 2010
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39. NRXN3 is a novel locus for waist circumference: a genome-wide association study from the CHARGE Consortium.

Author: Nancy L Heard-Costa, M Carola Zillikens, Keri L Monda, Asa Johansson, Tamara B Harris, Mao Fu, Talin Haritunians, Mary F Feitosa, Thor Aspelund, Gudny Eiriksdottir, Melissa Garcia, Lenore J Launer, Albert V Smith, Braxton D Mitchell, Patrick F McArdle, Alan R Shuldiner, Suzette J Bielinski, Eric Boerwinkle, Fred Brancati, Ellen W Demerath, James S Pankow, Alice M Arnold, Yii-Der Ida Chen, Nicole L Glazer, Barbara McKnight, Bruce M Psaty, Jerome I Rotter, Najaf Amin, Harry Campbell, Ulf Gyllensten, Cristian Pattaro, Peter P Pramstaller, Igor Rudan, Maksim Struchalin, Veronique Vitart, Xiaoyi Gao, Aldi Kraja, Michael A Province, Qunyuan Zhang, Larry D Atwood, Josée Dupuis, Joel N Hirschhorn, Cashell E Jaquish, Christopher J O'Donnell, Ramachandran S Vasan, Charles C White, Yurii S Aulchenko, Karol Estrada, Albert Hofman, Fernando Rivadeneira, André G Uitterlinden, Jacqueline C M Witteman, Ben A Oostra, Robert C Kaplan, Vilmundur Gudnason, Jeffrey R O'Connell, Ingrid B Borecki, Cornelia M van Duijn, L Adrienne Cupples, Caroline S Fox, and Kari E North
Subjects: Genetics, QH426-470
Abstract: Central abdominal fat is a strong risk factor for diabetes and cardiovascular disease. To identify common variants influencing central abdominal fat, we conducted a two-stage genome-wide association analysis for waist circumference (WC). In total, three loci reached genome-wide significance. In stage 1, 31,373 individuals of Caucasian descent from eight cohort studies confirmed the role of FTO and MC4R and identified one novel locus associated with WC in the neurexin 3 gene [NRXN3 (rs10146997, p = 6.4x10(-7))]. The association with NRXN3 was confirmed in stage 2 by combining stage 1 results with those from 38,641 participants in the GIANT consortium (p = 0.009 in GIANT only, p = 5.3x10(-8) for combined analysis, n = 70,014). Mean WC increase per copy of the G allele was 0.0498 z-score units (0.65 cm). This SNP was also associated with body mass index (BMI) [p = 7.4x10(-6), 0.024 z-score units (0.10 kg/m(2)) per copy of the G allele] and the risk of obesity (odds ratio 1.13, 95% CI 1.07-1.19; p = 3.2x10(-5) per copy of the G allele). The NRXN3 gene has been previously implicated in addiction and reward behavior, lending further evidence that common forms of obesity may be a central nervous system-mediated disorder. Our findings establish that common variants in NRXN3 are associated with WC, BMI, and obesity.
Published: 2009
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40. Functional COMT Val158Met polymorphism, risk of acute coronary events and serum homocysteine: the Kuopio ischaemic heart disease risk factor study.

Author: Sari Voutilainen, Tomi-Pekka Tuomainen, Maarit Korhonen, Jaakko Mursu, Jyrki K Virtanen, Pertti Happonen, Georg Alfthan, Iris Erlund, Kari E North, M J Mosher, Jussi Kauhanen, Jari Tiihonen, George A Kaplan, and Jukka T Salonen
Subjects: Medicine, Science
Abstract: The role of circulating levels of total homocysteine tHcy in the development of coronary heart disease (CHD) is still under debate. One reason for conflicting results between previous studies on homocysteine and heart diseases could be consequence of different interactions between homocysteine and genes in different study populations. Many genetic factors play a role in folate-homocysteine metabolism, like functional polymorphism (Val108Met) in the Catechol-O-methyltransferase (COMT) gene.Our aim was to examine the role of COMT Val158Met polymorphism and interaction of this polymorphism with serum tHcy and folate concentration on the risk of acute coronary and events in middle-aged men from eastern Finland. A population-based prospective cohort of 792 men aged 46-64 years was examined as part of the Kuopio Ischaemic Heart Disease Risk Factor Study. During an average follow-up of 9.3 years, there were 69 acute coronary events in men with no previous history of CHD. When comparing the COMT low activity genotype with the others, we found an age and examination year adjusted hazard rate ratio (HRR) of 1.73 (95% confidence interval (CI), 1.07-2.79), and an age, examination year, serum LDL and HDL cholesterol, and triglyceride concentration, systolic blood pressure and smoking adjusted HRR of 1.77 (95% CI, 1.05-2.77). Although serum tHcy concentration was not statistically significantly associated with acute coronary events (HRR for the highest third versus others 1.52, 95% CI, 0.93-2.49), subjects with both high serum tHcy and the COMT low activity genotype had an additionally increased adjusted risk of HRR 2.94 (95% CI 1.50-5.76) as compared with other men.This prospective cohort study suggests that the functional COMT Val158Met polymorphism is associated with increased risk of acute coronary events and it may interact with high serum tHcy levels.
Published: 2007
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41. Causal effects on complex traits are similar for common variants across segments of different continental ancestries within admixed individuals

Author: Kangcheng Hou, Yi Ding, Ziqi Xu, Yue Wu, Arjun Bhattacharya, Rachel Mester, Gillian M. Belbin, Steve Buyske, David V. Conti, Burcu F. Darst, Myriam Fornage, Chris Gignoux, Xiuqing Guo, Christopher Haiman, Eimear E. Kenny, Michelle Kim, Charles Kooperberg, Leslie Lange, Ani Manichaikul, Kari E. North, Ulrike Peters, Laura J. Rasmussen-Torvik, Stephen S. Rich, Jerome I. Rotter, Heather E. Wheeler, Genevieve L. Wojcik, Ying Zhou, Sriram Sankararaman, and Bogdan Pasaniuc
Subjects: Genetics
Published: 2023
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42. Physical activity and diet associations with the gut microbiota in the Coronary Artery Risk Development in Young Adults (CARDIA) study

Author: Aylin Memili, Anju Lulla, Hongwei Liu, James M. Shikany, David R. Jacobs, Lisa Langsetmo, Kari E. North, Corbin Jones, Lenore J. Launer, and Katie A. Meyer
Subjects: Nutrition and Dietetics, Medicine (miscellaneous)
Published: 2023
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43. Multi-ancestry transcriptome-wide association analyses yield insights into tobacco use biology and drug repurposing

Author: Fang Chen, Xingyan Wang, Seon-Kyeong Jang, Bryan C. Quach, J. Dylan Weissenkampen, Chachrit Khunsriraksakul, Lina Yang, Renan Sauteraud, Christine M. Albert, Nicholette D. D. Allred, Donna K. Arnett, Allison E. Ashley-Koch, Kathleen C. Barnes, R. Graham Barr, Diane M. Becker, Lawrence F. Bielak, Joshua C. Bis, John Blangero, Meher Preethi Boorgula, Daniel I. Chasman, Sameer Chavan, Yii-Der I. Chen, Lee-Ming Chuang, Adolfo Correa, Joanne E. Curran, Sean P. David, Lisa de las Fuentes, Ranjan Deka, Ravindranath Duggirala, Jessica D. Faul, Melanie E. Garrett, Sina A. Gharib, Xiuqing Guo, Michael E. Hall, Nicola L. Hawley, Jiang He, Brian D. Hobbs, John E. Hokanson, Chao A. Hsiung, Shih-Jen Hwang, Thomas M. Hyde, Marguerite R. Irvin, Andrew E. Jaffe, Eric O. Johnson, Robert Kaplan, Sharon L. R. Kardia, Joel D. Kaufman, Tanika N. Kelly, Joel E. Kleinman, Charles Kooperberg, I-Te Lee, Daniel Levy, Sharon M. Lutz, Ani W. Manichaikul, Lisa W. Martin, Olivia Marx, Stephen T. McGarvey, Ryan L. Minster, Matthew Moll, Karine A. Moussa, Take Naseri, Kari E. North, Elizabeth C. Oelsner, Juan M. Peralta, Patricia A. Peyser, Bruce M. Psaty, Nicholas Rafaels, Laura M. Raffield, Muagututi’a Sefuiva Reupena, Stephen S. Rich, Jerome I. Rotter, David A. Schwartz, Aladdin H. Shadyab, Wayne H-H. Sheu, Mario Sims, Jennifer A. Smith, Xiao Sun, Kent D. Taylor, Marilyn J. Telen, Harold Watson, Daniel E. Weeks, David R. Weir, Lisa R. Yanek, Kendra A. Young, Kristin L. Young, Wei Zhao, Dana B. Hancock, Bibo Jiang, Scott Vrieze, and Dajiang J. Liu
Subjects: Tobacco Smoke and Health, Human Genome, Drug Repositioning, Single Nucleotide, Biological Sciences, Medical and Health Sciences, Brain Disorders, Tobacco Use, Substance Misuse, Good Health and Well Being, Tobacco, Genetics, Humans, Genetic Predisposition to Disease, Polymorphism, Transcriptome, Drug Abuse (NIDA only), Biology, Genome-Wide Association Study, Developmental Biology
Abstract: Most transcriptome-wide association studies (TWASs) so far focus on European ancestry and lack diversity. To overcome this limitation, we aggregated genome-wide association study (GWAS) summary statistics, whole-genome sequences and expression quantitative trait locus (eQTL) data from diverse ancestries. We developed a new approach, TESLA (multi-ancestry integrative study using an optimal linear combination of association statistics), to integrate an eQTL dataset with a multi-ancestry GWAS. By exploiting shared phenotypic effects between ancestries and accommodating potential effect heterogeneities, TESLA improves power over other TWAS methods. When applied to tobacco use phenotypes, TESLA identified 273 new genes, up to 55% more compared with alternative TWAS methods. These hits and subsequent fine mapping using TESLA point to target genes with biological relevance. In silico drug-repurposing analyses highlight several drugs with known efficacy, including dextromethorphan and galantamine, and new drugs such as muscle relaxants that may be repurposed for treating nicotine addiction.
Published: 2023
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44. Insights From a Large-Scale Whole-Genome Sequencing Study of Systolic Blood Pressure, Diastolic Blood Pressure, and Hypertension

Author: Tanika N, Kelly, Xiao, Sun, Karen Y, He, Michael R, Brown, Sarah A Gagliano, Taliun, Jacklyn N, Hellwege, Marguerite R, Irvin, Xuenan, Mi, Jennifer A, Brody, Nora, Franceschini, Xiuqing, Guo, Shih-Jen, Hwang, Paul S, de Vries, Yan, Gao, Arden, Moscati, Girish N, Nadkarni, Lisa R, Yanek, Tali, Elfassy, Jennifer A, Smith, Ren-Hua, Chung, Amber L, Beitelshees, Amit, Patki, Stella, Aslibekyan, Brandon M, Blobner, Juan M, Peralta, Themistocles L, Assimes, Walter R, Palmas, Chunyu, Liu, Adam P, Bress, Zhijie, Huang, Lewis C, Becker, Chii-Min, Hwa, Jeffrey R, O'Connell, Jenna C, Carlson, Helen R, Warren, Sayantan, Das, Ayush, Giri, Lisa W, Martin, W, Craig Johnson, Ervin R, Fox, Erwin P, Bottinger, Alexander C, Razavi, Dhananjay, Vaidya, Lee-Ming, Chuang, Yen-Pei C, Chang, Take, Naseri, Deepti, Jain, Hyun Min, Kang, Adriana M, Hung, Vinodh, Srinivasasainagendra, Beverly M, Snively, Dongfeng, Gu, May E, Montasser, Muagututi'a Sefuiva, Reupena, Benjamin D, Heavner, Jonathon, LeFaive, James E, Hixson, Kenneth M, Rice, Fei Fei, Wang, Jonas B, Nielsen, Jianfeng, Huang, Alyna T, Khan, Wei, Zhou, Jovia L, Nierenberg, Cathy C, Laurie, Nicole D, Armstrong, Mengyao, Shi, Yang, Pan, Adrienne M, Stilp, Leslie, Emery, Quenna, Wong, Nicola L, Hawley, Ryan L, Minster, Joanne E, Curran, Patricia B, Munroe, Daniel E, Weeks, Kari E, North, Russell P, Tracy, Eimear E, Kenny, Daichi, Shimbo, Aravinda, Chakravarti, Stephen S, Rich, Alex P, Reiner, John, Blangero, Susan, Redline, Braxton D, Mitchell, Dabeeru C, Rao, Yii-Der, Ida Chen, Sharon L R, Kardia, Robert C, Kaplan, Rasika A, Mathias, Jiang, He, Bruce M, Psaty, Myriam, Fornage, Ruth J F, Loos, Adolfo, Correa, Eric, Boerwinkle, Jerome I, Rotter, Charles, Kooperberg, Todd L, Edwards, Gonçalo R, Abecasis, Xiaofeng, Zhu, Daniel, Levy, Donna K, Arnett, and Alanna C, Morrison
Subjects: Hypertension, Internal Medicine, Humans, Blood Pressure, Genomics, Precision Medicine, Polymorphism, Single Nucleotide, Genome-Wide Association Study
Abstract: Background: The availability of whole-genome sequencing data in large studies has enabled the assessment of coding and noncoding variants across the allele frequency spectrum for their associations with blood pressure. Methods: We conducted a multiancestry whole-genome sequencing analysis of blood pressure among 51 456 Trans-Omics for Precision Medicine and Centers for Common Disease Genomics program participants (stage-1). Stage-2 analyses leveraged array data from UK Biobank (N=383 145), Million Veteran Program (N=318 891), and Reasons for Geographic and Racial Differences in Stroke (N=10 643) participants, along with whole-exome sequencing data from UK Biobank (N=199 631) participants. Results: Two blood pressure signals achieved genome-wide significance in meta-analyses of stage-1 and stage-2 single variant findings ( P -8 ). Among them, a rare intergenic variant at novel locus, LOC100506274 , was associated with lower systolic blood pressure in stage-1 (beta [SE]=−32.6 [6.0]; P =4.99×10 -8 ) but not stage-2 analysis ( P =0.11). Furthermore, a novel common variant at the known INSR locus was suggestively associated with diastolic blood pressure in stage-1 (beta [SE]=−0.36 [0.07]; P =4.18×10 -7 ) and attained genome-wide significance in stage-2 (beta [SE]=−0.29 [0.03]; P =7.28×10 -23 ). Nineteen additional signals suggestively associated with blood pressure in meta-analysis of single and aggregate rare variant findings ( P -6 and P -4 , respectively). Discussion: We report one promising but unconfirmed rare variant for blood pressure and, more importantly, contribute insights for future blood pressure sequencing studies. Our findings suggest promise of aggregate analyses to complement single variant analysis strategies and the need for larger, diverse samples, and family studies to enable robust rare variant identification.
Published: 2023

45. Selenomonas sputigena acts as a pathobiont mediating spatial structure and biofilm virulence in early childhood caries

Author: Hunyong Cho, Zhi Ren, Kimon Divaris, Jeffrey Roach, Bridget M. Lin, Chuwen Liu, M. Andrea Azcarate-Peril, Miguel A. Simancas-Pallares, Poojan Shrestha, Alena Orlenko, Jeannie Ginnis, Kari E. North, Andrea G. Ferreira Zandona, Apoena Aguiar Ribeiro, Di Wu, and Hyun Koo
Subjects: Multidisciplinary, General Physics and Astronomy, General Chemistry, General Biochemistry, Genetics and Molecular Biology
Abstract: Streptococcus mutans has been implicated as the primary pathogen in childhood caries (tooth decay). While the role of polymicrobial communities is appreciated, it remains unclear whether other microorganisms are active contributors or interact with pathogens. Here, we integrate multi-omics of supragingival biofilm (dental plaque) from 416 preschool-age children (208 males and 208 females) in a discovery-validation pipeline to identify disease-relevant inter-species interactions. Sixteen taxa associate with childhood caries in metagenomics-metatranscriptomics analyses. Using multiscale/computational imaging and virulence assays, we examine biofilm formation dynamics, spatial arrangement, and metabolic activity of Selenomonas sputigena, Prevotella salivae and Leptotrichia wadei, either individually or with S. mutans. We show that S. sputigena, a flagellated anaerobe with previously unknown role in supragingival biofilm, becomes trapped in streptococcal exoglucans, loses motility but actively proliferates to build a honeycomb-like multicellular-superstructure encapsulating S. mutans, enhancing acidogenesis. Rodent model experiments reveal an unrecognized ability of S. sputigena to colonize supragingival tooth surfaces. While incapable of causing caries on its own, when co-infected with S. mutans, S. sputigena causes extensive tooth enamel lesions and exacerbates disease severity in vivo. In summary, we discover a pathobiont cooperating with a known pathogen to build a unique spatial structure and heighten biofilm virulence in a prevalent human disease.
Published: 2023
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46. Supplementary Tables 1-8 from Smoking and Selected DNA Repair Gene Polymorphisms in Controls: Systematic Review and Meta-Analysis

Author: Robert C. Millikan, Donglin Zeng, Kari E. North, Andrew F. Olshan, Charles Poole, and M. Elizabeth Hodgson
Abstract: Supplementary Tables 1-8 from Smoking and Selected DNA Repair Gene Polymorphisms in Controls: Systematic Review and Meta-Analysis
Published: 2023
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47. Data from Smoking and Selected DNA Repair Gene Polymorphisms in Controls: Systematic Review and Meta-Analysis

Author: Robert C. Millikan, Donglin Zeng, Kari E. North, Andrew F. Olshan, Charles Poole, and M. Elizabeth Hodgson
Abstract: Background: When the case-only study design is used to estimate statistical interaction between genetic (G) and environmental (E) exposures, G and E must be independent in the underlying population, or the case-only estimate of interaction (COR) will be biased. Few studies have examined the occurrence of G–E association in published control group data.Methods: To examine the assumption of G–E independence in empirical data, we conducted a systematic review and meta-analysis of G–E associations in controls for frequently investigated DNA repair genes (XRCC1 Arg399Gln, Arg194Trp, or Arg280His, XPD Lys751Gln, and Asp312Asn, and XRCC3 Thr241Met), and smoking (ever/never smoking, current/not current smoker, smoking duration, smoking intensity, and pack-years).Results: Across the 55 included studies, single nucleotide polymorphisms SNP-smoking associations in controls (ORz) were not reliably at the null value of 1.0 for any SNP-smoking combinations. Two G–E combinations were too heterogeneous for summary estimates: XRCC1 399 and ever-never smoking (N = 21), and XPD 751 and pack-years (N = 12). ORz ranges for these combinations were: [ORz (95% confidence interval (CI)] 0.7 (0.4, 1.2)–1.9 (1.2, 2.8) and 0.8 (0.5, 1.3)–2.3 (0.8, 6.1), respectively). Estimates for studies considered homogeneous (Cochran's Q P-value Conclusions: We recommend the independence assumption be evaluated in the population underlying any potential case-only study, rather than in a proxy control group(s) or pooled controls.Impact: These results suggest that G–E association in controls may be population-specific. Increased access to control data would improve evaluation of the independence assumption. Cancer Epidemiol Biomarkers Prev; 19(12); 3055–86. ©2010 AACR.
Published: 2023
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48. Data from Association of Cancer Susceptibility Variants with Risk of Multiple Primary Cancers: The Population Architecture using Genomics and Epidemiology Study

Author: Loïc Le Marchand, Iona Cheng, Charles Kooperberg, William S. Bush, Lynne R. Wilkens, Christopher A. Haiman, Dana C. Crawford, Gerardo Heiss, Kari E. North, Ulrike Peters, Ying Han, Ewa Deelman, Fridtjof Thomas, Lifang Hou, Chu Chen, Jennifer Beebe-Dimmer, Fredrick R. Schumacher, Jay H. Fowke, Lucia A. Hindorff, Tara C. Matise, Shelly-Ann Love, Logan Dumitrescu, Robert J. Goodloe, Yi Lin, Christian P. Caberto, and S. Lani Park
Abstract: Background: Multiple primary cancers account for approximately 16% of all incident cancers in the United States. Although genome-wide association studies (GWAS) have identified many common genetic variants associated with various cancer sites, no study has examined the association of these genetic variants with risk of multiple primary cancers (MPC).Methods: As part of the National Human Genome Research Institute (NHGRI) Population Architecture using Genomics and Epidemiology (PAGE) study, we used data from the Multiethnic Cohort (MEC) and Women's Health Initiative (WHI). Incident MPC (IMPC) cases (n = 1,385) were defined as participants diagnosed with more than one incident cancer after cohort entry. Participants diagnosed with only one incident cancer after cohort entry with follow-up equal to or longer than IMPC cases served as controls (single-index cancer controls; n = 9,626). Fixed-effects meta-analyses of unconditional logistic regression analyses were used to evaluate the associations between 188 cancer risk variants and IMPC risk. To account for multiple comparisons, we used the false-positive report probability (FPRP) to determine statistical significance.Results: A nicotine dependence–associated and lung cancer variant, CHRNA3 rs578776 [OR, 1.16; 95% confidence interval (CI), 1.05–1.26; P = 0.004], and two breast cancer variants, EMBP1 rs11249433 and TOX3 rs3803662 (OR, 1.16; 95% CI, 1.04–1.28; P = 0.005 and OR, 1.13; 95% CI, 1.03–1.23; P = 0.006), were significantly associated with risk of IMPC. The associations for rs578776 and rs11249433 remained (P < 0.05) after removing subjects who had lung or breast cancers, respectively (P ≤ 0.046). These associations did not show significant heterogeneity by smoking status (Pheterogeneity ≥ 0.53).Conclusions: Our study has identified rs578776 and rs11249433 as risk variants for IMPC.Impact: These findings may help to identify genetic regions associated with IMPC risk. Cancer Epidemiol Biomarkers Prev; 23(11); 2568–78. ©2014 AACR.
Published: 2023
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49. Supplemental Tables 1 - 7 from Association of Cancer Susceptibility Variants with Risk of Multiple Primary Cancers: The Population Architecture using Genomics and Epidemiology Study

Author: Loïc Le Marchand, Iona Cheng, Charles Kooperberg, William S. Bush, Lynne R. Wilkens, Christopher A. Haiman, Dana C. Crawford, Gerardo Heiss, Kari E. North, Ulrike Peters, Ying Han, Ewa Deelman, Fridtjof Thomas, Lifang Hou, Chu Chen, Jennifer Beebe-Dimmer, Fredrick R. Schumacher, Jay H. Fowke, Lucia A. Hindorff, Tara C. Matise, Shelly-Ann Love, Logan Dumitrescu, Robert J. Goodloe, Yi Lin, Christian P. Caberto, and S. Lani Park
Abstract: Supplementary Table 1. Summary of Study Design and Case/Control Definitions for participating studies. Supplementary Table 2. Distribution of the incident index and second cancer site among incident multiple primary cancer cases, stratified by study and cancer latency. Supplemental Table 3. Detailed distribution of incident index and second cancer site among incident multiple primary cancer cases for WHI study. Supplemental Table 4. Detailed distribution of incident index and second cancer site among incident multiple primary cancer cases for MEC study. Supplemental Table 5. Frequency and cancer site of IMPC cases with 3 or more cancers. Supplementary Table 6. Meta-analysis of the non-significant associations (p{greater than or equal to}0.05) between 178 risk variants for other cancers and incident multiple primary cancer risk. Supplementary Table 7. Ten SNPsa associated with other cancers and multiple primary cancer risk by race/ethnicityb
Published: 2023
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50. Assessing efficiency of fine-mapping obesity associated variants through leveraging ancestry architecture and functional annotation using PAGE and UKBB Cohorts

Author: Mohammad Yaser Anwar, Mariaelisa Graff, Heather M. Highland, Roelof Smit, Zhe Wang, Victoria L. Buchanan, Kristina L. Young, Eimear E. Kenny, Lindsay Fernandez-Rhodes, Simin Liu, Themistocles Assimes, David O. Garcia, Kim Daeeun, Christopher R. Gignoux, Anne E. Justice, Christopher A. Haiman, Steve Buyske, Ulrike Peters, Ruth Loos, Charles Kooperberg, and Kari E. North
Abstract: Inadequate representation of non-European ancestry populations in genome-wide association studies (GWAS) has limited opportunities to isolate functional variants. Fine-mapping in multi-ancestry populations should improve the efficiency of prioritizing variants for functional interrogation. To evaluate this hypothesis, we leveraged ancestry architecture to perform comparative GWAS and fine-mapping of obesity related phenotypes in European ancestry populations from the UK Biobank (UKBB) and multi-ancestry samples from the Population Architecture for Genetic Epidemiology (PAGE) consortium with comparable sample sizes. In 10 of the investigated regions with genome wide significant associations for obesity related traits, fine-mapping in our ancestrally diverse sample led to 95% and 99% credible sets (CS) with fewer variants than in the European ancestry sample. Lead fine-mapped variants in PAGE regions had higher average coding scores, and higher average posterior probabilities for causality compared to UKBB. Importantly, 99% CS in PAGE loci contained strong expression quantitative trait loci (eQTLs) in adipose tissues or harbored more variants in tighter linkage disequilibrium (LD) with eQTLs. Results also suggested three novel candidates for functional effect on waist-to-hip ratio adjusted for BMI (WHRBMI-adj) (rs5781117 near gene RP11-392O17.1, rs10187501 in gene COBLL1, and rs1964599 near gene CCDC92), all within the 99% CS. Leveraging ancestrally diverse populations with heterogeneous ancestry architectures, coupled with functional annotation, increased fine mapping efficiency and performance, and reduced the set of candidate variants for consideration for future functional studies. Significant overlap in genetic causal variants across populations suggest generalizability of genetic mechanisms underpinning obesity related traits across populations.
Published: 2023
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