TY - JOUR T1 - Common variants in the calcium-sensing receptor gene are associated with total serum calcium levels. JF - Hum Mol Genet Y1 - 2010 A1 - O'Seaghdha, Conall M A1 - Yang, Qiong A1 - Glazer, Nicole L A1 - Leak, Tennille S A1 - Dehghan, Abbas A1 - Smith, Albert V A1 - Kao, W H Linda A1 - Lohman, Kurt A1 - Hwang, Shih-Jen A1 - Johnson, Andrew D A1 - Hofman, Albert A1 - Uitterlinden, André G A1 - Chen, Yii-Der Ida A1 - Brown, Edward M A1 - Siscovick, David S A1 - Harris, Tamara B A1 - Psaty, Bruce M A1 - Coresh, Josef A1 - Gudnason, Vilmundur A1 - Witteman, Jacqueline C A1 - Liu, Yong Mei A1 - Kestenbaum, Bryan R A1 - Fox, Caroline S A1 - Köttgen, Anna KW - Adult KW - Calcium KW - Female KW - Humans KW - Male KW - Middle Aged KW - Polymorphism, Single Nucleotide KW - Receptors, Calcium-Sensing AB -

Serum calcium levels are tightly regulated. We performed genome-wide association studies (GWAS) in population-based studies participating in the CHARGE Consortium to uncover common genetic variations associated with total serum calcium levels. GWAS of serum calcium concentrations was performed in 20 611 individuals of European ancestry for ∼2.5 million genotyped and imputed single-nucleotide polymorphisms (SNPs). The SNP with the lowest P-value was rs17251221 (P = 2.4 * 10(-22), minor allele frequency 14%) in the calcium-sensing receptor gene (CASR). This lead SNP was associated with higher serum calcium levels [0.06 mg/dl (0.015 mmol/l) per copy of the minor G allele] and accounted for 0.54% of the variance in serum calcium concentrations. The identification of variation in CASR that influences serum calcium concentration confirms the results of earlier candidate gene studies. The G allele of rs17251221 was also associated with higher serum magnesium levels (P = 1.2 * 10(-3)), lower serum phosphate levels (P = 2.8 * 10(-7)) and lower bone mineral density at the lumbar spine (P = 0.038), but not the femoral neck. No additional genomic loci contained SNPs associated at genome-wide significance (P < 5 * 10(-8)). These associations resemble clinical characteristics of patients with familial hypocalciuric hypercalcemia, an autosomal-dominant disease arising from rare inactivating mutations in the CASR gene. We conclude that common genetic variation in the CASR gene is associated with similar but milder features in the general population.

VL - 19 IS - 21 U1 - http://www.ncbi.nlm.nih.gov/pubmed/20705733?dopt=Abstract ER - TY - JOUR T1 - Association of eGFR-Related Loci Identified by GWAS with Incident CKD and ESRD. JF - PLoS Genet Y1 - 2011 A1 - Böger, Carsten A A1 - Gorski, Mathias A1 - Li, Man A1 - Hoffmann, Michael M A1 - Huang, Chunmei A1 - Yang, Qiong A1 - Teumer, Alexander A1 - Krane, Vera A1 - O'Seaghdha, Conall M A1 - Kutalik, Zoltán A1 - Wichmann, H-Erich A1 - Haak, Thomas A1 - Boes, Eva A1 - Coassin, Stefan A1 - Coresh, Josef A1 - Kollerits, Barbara A1 - Haun, Margot A1 - Paulweber, Bernhard A1 - Köttgen, Anna A1 - Li, Guo A1 - Shlipak, Michael G A1 - Powe, Neil A1 - Hwang, Shih-Jen A1 - Dehghan, Abbas A1 - Rivadeneira, Fernando A1 - Uitterlinden, Andre A1 - Hofman, Albert A1 - Beckmann, Jacques S A1 - Krämer, Bernhard K A1 - Witteman, Jacqueline A1 - Bochud, Murielle A1 - Siscovick, David A1 - Rettig, Rainer A1 - Kronenberg, Florian A1 - Wanner, Christoph A1 - Thadhani, Ravi I A1 - Heid, Iris M A1 - Fox, Caroline S A1 - Kao, W H KW - Adaptor Proteins, Signal Transducing KW - Adult KW - Aged KW - Chronic Disease KW - Creatinine KW - European Continental Ancestry Group KW - Female KW - Follow-Up Studies KW - Genetic Association Studies KW - Humans KW - Kidney Diseases KW - Kidney Failure, Chronic KW - Male KW - Middle Aged KW - Polymorphism, Single Nucleotide KW - Receptor, Epidermal Growth Factor KW - Uromodulin AB -

Family studies suggest a genetic component to the etiology of chronic kidney disease (CKD) and end stage renal disease (ESRD). Previously, we identified 16 loci for eGFR in genome-wide association studies, but the associations of these single nucleotide polymorphisms (SNPs) for incident CKD or ESRD are unknown. We thus investigated the association of these loci with incident CKD in 26,308 individuals of European ancestry free of CKD at baseline drawn from eight population-based cohorts followed for a median of 7.2 years (including 2,122 incident CKD cases defined as eGFR <60ml/min/1.73m(2) at follow-up) and with ESRD in four case-control studies in subjects of European ancestry (3,775 cases, 4,577 controls). SNPs at 11 of the 16 loci (UMOD, PRKAG2, ANXA9, DAB2, SHROOM3, DACH1, STC1, SLC34A1, ALMS1/NAT8, UBE2Q2, and GCKR) were associated with incident CKD; p-values ranged from p = 4.1e-9 in UMOD to p = 0.03 in GCKR. After adjusting for baseline eGFR, six of these loci remained significantly associated with incident CKD (UMOD, PRKAG2, ANXA9, DAB2, DACH1, and STC1). SNPs in UMOD (OR = 0.92, p = 0.04) and GCKR (OR = 0.93, p = 0.03) were nominally associated with ESRD. In summary, the majority of eGFR-related loci are either associated or show a strong trend towards association with incident CKD, but have modest associations with ESRD in individuals of European descent. Additional work is required to characterize the association of genetic determinants of CKD and ESRD at different stages of disease progression.

VL - 7 IS - 9 U1 - http://www.ncbi.nlm.nih.gov/pubmed/21980298?dopt=Abstract ER - TY - JOUR T1 - CUBN is a gene locus for albuminuria. JF - J Am Soc Nephrol Y1 - 2011 A1 - Böger, Carsten A A1 - Chen, Ming-Huei A1 - Tin, Adrienne A1 - Olden, Matthias A1 - Köttgen, Anna A1 - de Boer, Ian H A1 - Fuchsberger, Christian A1 - O'Seaghdha, Conall M A1 - Pattaro, Cristian A1 - Teumer, Alexander A1 - Liu, Ching-Ti A1 - Glazer, Nicole L A1 - Li, Man A1 - O'Connell, Jeffrey R A1 - Tanaka, Toshiko A1 - Peralta, Carmen A A1 - Kutalik, Zoltán A1 - Luan, Jian'an A1 - Zhao, Jing Hua A1 - Hwang, Shih-Jen A1 - Akylbekova, Ermeg A1 - Kramer, Holly A1 - van der Harst, Pim A1 - Smith, Albert V A1 - Lohman, Kurt A1 - de Andrade, Mariza A1 - Hayward, Caroline A1 - Kollerits, Barbara A1 - Tönjes, Anke A1 - Aspelund, Thor A1 - Ingelsson, Erik A1 - Eiriksdottir, Gudny A1 - Launer, Lenore J A1 - Harris, Tamara B A1 - Shuldiner, Alan R A1 - Mitchell, Braxton D A1 - Arking, Dan E A1 - Franceschini, Nora A1 - Boerwinkle, Eric A1 - Egan, Josephine A1 - Hernandez, Dena A1 - Reilly, Muredach A1 - Townsend, Raymond R A1 - Lumley, Thomas A1 - Siscovick, David S A1 - Psaty, Bruce M A1 - Kestenbaum, Bryan A1 - Haritunians, Talin A1 - Bergmann, Sven A1 - Vollenweider, Peter A1 - Waeber, Gérard A1 - Mooser, Vincent A1 - Waterworth, Dawn A1 - Johnson, Andrew D A1 - Florez, Jose C A1 - Meigs, James B A1 - Lu, Xiaoning A1 - Turner, Stephen T A1 - Atkinson, Elizabeth J A1 - Leak, Tennille S A1 - Aasarød, Knut A1 - Skorpen, Frank A1 - Syvänen, Ann-Christine A1 - Illig, Thomas A1 - Baumert, Jens A1 - Koenig, Wolfgang A1 - Krämer, Bernhard K A1 - Devuyst, Olivier A1 - Mychaleckyj, Josyf C A1 - Minelli, Cosetta A1 - Bakker, Stephan J L A1 - Kedenko, Lyudmyla A1 - Paulweber, Bernhard A1 - Coassin, Stefan A1 - Endlich, Karlhans A1 - Kroemer, Heyo K A1 - Biffar, Reiner A1 - Stracke, Sylvia A1 - Völzke, Henry A1 - Stumvoll, Michael A1 - Mägi, Reedik A1 - Campbell, Harry A1 - Vitart, Veronique A1 - Hastie, Nicholas D A1 - Gudnason, Vilmundur A1 - Kardia, Sharon L R A1 - Liu, Yongmei A1 - Polasek, Ozren A1 - Curhan, Gary A1 - Kronenberg, Florian A1 - Prokopenko, Inga A1 - Rudan, Igor A1 - Arnlöv, Johan A1 - Hallan, Stein A1 - Navis, Gerjan A1 - Parsa, Afshin A1 - Ferrucci, Luigi A1 - Coresh, Josef A1 - Shlipak, Michael G A1 - Bull, Shelley B A1 - Paterson, Nicholas J A1 - Wichmann, H-Erich A1 - Wareham, Nicholas J A1 - Loos, Ruth J F A1 - Rotter, Jerome I A1 - Pramstaller, Peter P A1 - Cupples, L Adrienne A1 - Beckmann, Jacques S A1 - Yang, Qiong A1 - Heid, Iris M A1 - Rettig, Rainer A1 - Dreisbach, Albert W A1 - Bochud, Murielle A1 - Fox, Caroline S A1 - Kao, W H L KW - African Continental Ancestry Group KW - Albuminuria KW - European Continental Ancestry Group KW - Genetic Loci KW - Genetic Predisposition to Disease KW - Humans KW - Mutation, Missense KW - Receptors, Cell Surface AB -

Identification of genetic risk factors for albuminuria may alter strategies for early prevention of CKD progression, particularly among patients with diabetes. Little is known about the influence of common genetic variants on albuminuria in both general and diabetic populations. We performed a meta-analysis of data from 63,153 individuals of European ancestry with genotype information from genome-wide association studies (CKDGen Consortium) and from a large candidate gene study (CARe Consortium) to identify susceptibility loci for the quantitative trait urinary albumin-to-creatinine ratio (UACR) and the clinical diagnosis microalbuminuria. We identified an association between a missense variant (I2984V) in the CUBN gene, which encodes cubilin, and both UACR (P = 1.1 × 10(-11)) and microalbuminuria (P = 0.001). We observed similar associations among 6981 African Americans in the CARe Consortium. The associations between this variant and both UACR and microalbuminuria were significant in individuals of European ancestry regardless of diabetes status. Finally, this variant associated with a 41% increased risk for the development of persistent microalbuminuria during 20 years of follow-up among 1304 participants with type 1 diabetes in the prospective DCCT/EDIC Study. In summary, we identified a missense CUBN variant that associates with levels of albuminuria in both the general population and in individuals with diabetes.

VL - 22 IS - 3 U1 - http://www.ncbi.nlm.nih.gov/pubmed/21355061?dopt=Abstract ER - TY - JOUR T1 - Genome-wide association and functional follow-up reveals new loci for kidney function. JF - PLoS Genet Y1 - 2012 A1 - Pattaro, Cristian A1 - Köttgen, Anna A1 - Teumer, Alexander A1 - Garnaas, Maija A1 - Böger, Carsten A A1 - Fuchsberger, Christian A1 - Olden, Matthias A1 - Chen, Ming-Huei A1 - Tin, Adrienne A1 - Taliun, Daniel A1 - Li, Man A1 - Gao, Xiaoyi A1 - Gorski, Mathias A1 - Yang, Qiong A1 - Hundertmark, Claudia A1 - Foster, Meredith C A1 - O'Seaghdha, Conall M A1 - Glazer, Nicole A1 - Isaacs, Aaron A1 - Liu, Ching-Ti A1 - Smith, Albert V A1 - O'Connell, Jeffrey R A1 - Struchalin, Maksim A1 - Tanaka, Toshiko A1 - Li, Guo A1 - Johnson, Andrew D A1 - Gierman, Hinco J A1 - Feitosa, Mary A1 - Hwang, Shih-Jen A1 - Atkinson, Elizabeth J A1 - Lohman, Kurt A1 - Cornelis, Marilyn C A1 - Johansson, Asa A1 - Tönjes, Anke A1 - Dehghan, Abbas A1 - Chouraki, Vincent A1 - Holliday, Elizabeth G A1 - Sorice, Rossella A1 - Kutalik, Zoltán A1 - Lehtimäki, Terho A1 - Esko, Tõnu A1 - Deshmukh, Harshal A1 - Ulivi, Sheila A1 - Chu, Audrey Y A1 - Murgia, Federico A1 - Trompet, Stella A1 - Imboden, Medea A1 - Kollerits, Barbara A1 - Pistis, Giorgio A1 - Harris, Tamara B A1 - Launer, Lenore J A1 - Aspelund, Thor A1 - Eiriksdottir, Gudny A1 - Mitchell, Braxton D A1 - Boerwinkle, Eric A1 - Schmidt, Helena A1 - Cavalieri, Margherita A1 - Rao, Madhumathi A1 - Hu, Frank B A1 - Demirkan, Ayse A1 - Oostra, Ben A A1 - de Andrade, Mariza A1 - Turner, Stephen T A1 - Ding, Jingzhong A1 - Andrews, Jeanette S A1 - Freedman, Barry I A1 - Koenig, Wolfgang A1 - Illig, Thomas A1 - Döring, Angela A1 - Wichmann, H-Erich A1 - Kolcic, Ivana A1 - Zemunik, Tatijana A1 - Boban, Mladen A1 - Minelli, Cosetta A1 - Wheeler, Heather E A1 - Igl, Wilmar A1 - Zaboli, Ghazal A1 - Wild, Sarah H A1 - Wright, Alan F A1 - Campbell, Harry A1 - Ellinghaus, David A1 - Nöthlings, Ute A1 - Jacobs, Gunnar A1 - Biffar, Reiner A1 - Endlich, Karlhans A1 - Ernst, Florian A1 - Homuth, Georg A1 - Kroemer, Heyo K A1 - Nauck, Matthias A1 - Stracke, Sylvia A1 - Völker, Uwe A1 - Völzke, Henry A1 - Kovacs, Peter A1 - Stumvoll, Michael A1 - Mägi, Reedik A1 - Hofman, Albert A1 - Uitterlinden, André G A1 - Rivadeneira, Fernando A1 - Aulchenko, Yurii S A1 - Polasek, Ozren A1 - Hastie, Nick A1 - Vitart, Veronique A1 - Helmer, Catherine A1 - Wang, Jie Jin A1 - Ruggiero, Daniela A1 - Bergmann, Sven A1 - Kähönen, Mika A1 - Viikari, Jorma A1 - Nikopensius, Tiit A1 - Province, Michael A1 - Ketkar, Shamika A1 - Colhoun, Helen A1 - Doney, Alex A1 - Robino, Antonietta A1 - Giulianini, Franco A1 - Krämer, Bernhard K A1 - Portas, Laura A1 - Ford, Ian A1 - Buckley, Brendan M A1 - Adam, Martin A1 - Thun, Gian-Andri A1 - Paulweber, Bernhard A1 - Haun, Margot A1 - Sala, Cinzia A1 - Metzger, Marie A1 - Mitchell, Paul A1 - Ciullo, Marina A1 - Kim, Stuart K A1 - Vollenweider, Peter A1 - Raitakari, Olli A1 - Metspalu, Andres A1 - Palmer, Colin A1 - Gasparini, Paolo A1 - Pirastu, Mario A1 - Jukema, J Wouter A1 - Probst-Hensch, Nicole M A1 - Kronenberg, Florian A1 - Toniolo, Daniela A1 - Gudnason, Vilmundur A1 - Shuldiner, Alan R A1 - Coresh, Josef A1 - Schmidt, Reinhold A1 - Ferrucci, Luigi A1 - Siscovick, David S A1 - van Duijn, Cornelia M A1 - Borecki, Ingrid A1 - Kardia, Sharon L R A1 - Liu, Yongmei A1 - Curhan, Gary C A1 - Rudan, Igor A1 - Gyllensten, Ulf A1 - Wilson, James F A1 - Franke, Andre A1 - Pramstaller, Peter P A1 - Rettig, Rainer A1 - Prokopenko, Inga A1 - Witteman, Jacqueline C M A1 - Hayward, Caroline A1 - Ridker, Paul A1 - Parsa, Afshin A1 - Bochud, Murielle A1 - Heid, Iris M A1 - Goessling, Wolfram A1 - Chasman, Daniel I A1 - Kao, W H Linda A1 - Fox, Caroline S KW - African Americans KW - Aged KW - Animals KW - Caspase 9 KW - Cyclin-Dependent Kinases KW - DEAD-box RNA Helicases KW - DNA Helicases KW - European Continental Ancestry Group KW - Female KW - Follow-Up Studies KW - Gene Knockdown Techniques KW - Genome-Wide Association Study KW - Glomerular Filtration Rate KW - Humans KW - Kidney KW - Kidney Failure, Chronic KW - Male KW - Middle Aged KW - Phosphoric Diester Hydrolases KW - Zebrafish AB -

Chronic kidney disease (CKD) is an important public health problem with a genetic component. We performed genome-wide association studies in up to 130,600 European ancestry participants overall, and stratified for key CKD risk factors. We uncovered 6 new loci in association with estimated glomerular filtration rate (eGFR), the primary clinical measure of CKD, in or near MPPED2, DDX1, SLC47A1, CDK12, CASP9, and INO80. Morpholino knockdown of mpped2 and casp9 in zebrafish embryos revealed podocyte and tubular abnormalities with altered dextran clearance, suggesting a role for these genes in renal function. By providing new insights into genes that regulate renal function, these results could further our understanding of the pathogenesis of CKD.

VL - 8 IS - 3 U1 - http://www.ncbi.nlm.nih.gov/pubmed/22479191?dopt=Abstract ER - TY - JOUR T1 - Common variants in Mendelian kidney disease genes and their association with renal function. JF - J Am Soc Nephrol Y1 - 2013 A1 - Parsa, Afshin A1 - Fuchsberger, Christian A1 - Köttgen, Anna A1 - O'Seaghdha, Conall M A1 - Pattaro, Cristian A1 - de Andrade, Mariza A1 - Chasman, Daniel I A1 - Teumer, Alexander A1 - Endlich, Karlhans A1 - Olden, Matthias A1 - Chen, Ming-Huei A1 - Tin, Adrienne A1 - Kim, Young J A1 - Taliun, Daniel A1 - Li, Man A1 - Feitosa, Mary A1 - Gorski, Mathias A1 - Yang, Qiong A1 - Hundertmark, Claudia A1 - Foster, Meredith C A1 - Glazer, Nicole A1 - Isaacs, Aaron A1 - Rao, Madhumathi A1 - Smith, Albert V A1 - O'Connell, Jeffrey R A1 - Struchalin, Maksim A1 - Tanaka, Toshiko A1 - Li, Guo A1 - Hwang, Shih-Jen A1 - Atkinson, Elizabeth J A1 - Lohman, Kurt A1 - Cornelis, Marilyn C A1 - Johansson, Asa A1 - Tönjes, Anke A1 - Dehghan, Abbas A1 - Couraki, Vincent A1 - Holliday, Elizabeth G A1 - Sorice, Rossella A1 - Kutalik, Zoltán A1 - Lehtimäki, Terho A1 - Esko, Tõnu A1 - Deshmukh, Harshal A1 - Ulivi, Sheila A1 - Chu, Audrey Y A1 - Murgia, Federico A1 - Trompet, Stella A1 - Imboden, Medea A1 - Kollerits, Barbara A1 - Pistis, Giorgio A1 - Harris, Tamara B A1 - Launer, Lenore J A1 - Aspelund, Thor A1 - Eiriksdottir, Gudny A1 - Mitchell, Braxton D A1 - Boerwinkle, Eric A1 - Schmidt, Helena A1 - Hofer, Edith A1 - Hu, Frank A1 - Demirkan, Ayse A1 - Oostra, Ben A A1 - Turner, Stephen T A1 - Ding, Jingzhong A1 - Andrews, Jeanette S A1 - Freedman, Barry I A1 - Giulianini, Franco A1 - Koenig, Wolfgang A1 - Illig, Thomas A1 - Döring, Angela A1 - Wichmann, H-Erich A1 - Zgaga, Lina A1 - Zemunik, Tatijana A1 - Boban, Mladen A1 - Minelli, Cosetta A1 - Wheeler, Heather E A1 - Igl, Wilmar A1 - Zaboli, Ghazal A1 - Wild, Sarah H A1 - Wright, Alan F A1 - Campbell, Harry A1 - Ellinghaus, David A1 - Nöthlings, Ute A1 - Jacobs, Gunnar A1 - Biffar, Reiner A1 - Ernst, Florian A1 - Homuth, Georg A1 - Kroemer, Heyo K A1 - Nauck, Matthias A1 - Stracke, Sylvia A1 - Völker, Uwe A1 - Völzke, Henry A1 - Kovacs, Peter A1 - Stumvoll, Michael A1 - Mägi, Reedik A1 - Hofman, Albert A1 - Uitterlinden, André G A1 - Rivadeneira, Fernando A1 - Aulchenko, Yurii S A1 - Polasek, Ozren A1 - Hastie, Nick A1 - Vitart, Veronique A1 - Helmer, Catherine A1 - Wang, Jie Jin A1 - Stengel, Bénédicte A1 - Ruggiero, Daniela A1 - Bergmann, Sven A1 - Kähönen, Mika A1 - Viikari, Jorma A1 - Nikopensius, Tiit A1 - Province, Michael A1 - Colhoun, Helen A1 - Doney, Alex A1 - Robino, Antonietta A1 - Krämer, Bernhard K A1 - Portas, Laura A1 - Ford, Ian A1 - Buckley, Brendan M A1 - Adam, Martin A1 - Thun, Gian-Andri A1 - Paulweber, Bernhard A1 - Haun, Margot A1 - Sala, Cinzia A1 - Mitchell, Paul A1 - Ciullo, Marina A1 - Vollenweider, Peter A1 - Raitakari, Olli A1 - Metspalu, Andres A1 - Palmer, Colin A1 - Gasparini, Paolo A1 - Pirastu, Mario A1 - Jukema, J Wouter A1 - Probst-Hensch, Nicole M A1 - Kronenberg, Florian A1 - Toniolo, Daniela A1 - Gudnason, Vilmundur A1 - Shuldiner, Alan R A1 - Coresh, Josef A1 - Schmidt, Reinhold A1 - Ferrucci, Luigi A1 - van Duijn, Cornelia M A1 - Borecki, Ingrid A1 - Kardia, Sharon L R A1 - Liu, Yongmei A1 - Curhan, Gary C A1 - Rudan, Igor A1 - Gyllensten, Ulf A1 - Wilson, James F A1 - Franke, Andre A1 - Pramstaller, Peter P A1 - Rettig, Rainer A1 - Prokopenko, Inga A1 - Witteman, Jacqueline A1 - Hayward, Caroline A1 - Ridker, Paul M A1 - Bochud, Murielle A1 - Heid, Iris M A1 - Siscovick, David S A1 - Fox, Caroline S A1 - Kao, W Linda A1 - Böger, Carsten A KW - Databases, Genetic KW - European Continental Ancestry Group KW - Gene Frequency KW - Genetic Variation KW - Genome-Wide Association Study KW - Humans KW - Kidney KW - Mendelian Randomization Analysis KW - Phenotype KW - Polymorphism, Single Nucleotide KW - Renal Insufficiency, Chronic AB -

Many common genetic variants identified by genome-wide association studies for complex traits map to genes previously linked to rare inherited Mendelian disorders. A systematic analysis of common single-nucleotide polymorphisms (SNPs) in genes responsible for Mendelian diseases with kidney phenotypes has not been performed. We thus developed a comprehensive database of genes for Mendelian kidney conditions and evaluated the association between common genetic variants within these genes and kidney function in the general population. Using the Online Mendelian Inheritance in Man database, we identified 731 unique disease entries related to specific renal search terms and confirmed a kidney phenotype in 218 of these entries, corresponding to mutations in 258 genes. We interrogated common SNPs (minor allele frequency >5%) within these genes for association with the estimated GFR in 74,354 European-ancestry participants from the CKDGen Consortium. However, the top four candidate SNPs (rs6433115 at LRP2, rs1050700 at TSC1, rs249942 at PALB2, and rs9827843 at ROBO2) did not achieve significance in a stage 2 meta-analysis performed in 56,246 additional independent individuals, indicating that these common SNPs are not associated with estimated GFR. The effect of less common or rare variants in these genes on kidney function in the general population and disease-specific cohorts requires further research.

VL - 24 IS - 12 U1 - http://www.ncbi.nlm.nih.gov/pubmed/24029420?dopt=Abstract ER - TY - JOUR T1 - Genome-wide association analyses identify 18 new loci associated with serum urate concentrations. JF - Nat Genet Y1 - 2013 A1 - Köttgen, Anna A1 - Albrecht, Eva A1 - Teumer, Alexander A1 - Vitart, Veronique A1 - Krumsiek, Jan A1 - Hundertmark, Claudia A1 - Pistis, Giorgio A1 - Ruggiero, Daniela A1 - O'Seaghdha, Conall M A1 - Haller, Toomas A1 - Yang, Qiong A1 - Tanaka, Toshiko A1 - Johnson, Andrew D A1 - Kutalik, Zoltán A1 - Smith, Albert V A1 - Shi, Julia A1 - Struchalin, Maksim A1 - Middelberg, Rita P S A1 - Brown, Morris J A1 - Gaffo, Angelo L A1 - Pirastu, Nicola A1 - Li, Guo A1 - Hayward, Caroline A1 - Zemunik, Tatijana A1 - Huffman, Jennifer A1 - Yengo, Loic A1 - Zhao, Jing Hua A1 - Demirkan, Ayse A1 - Feitosa, Mary F A1 - Liu, Xuan A1 - Malerba, Giovanni A1 - Lopez, Lorna M A1 - van der Harst, Pim A1 - Li, Xinzhong A1 - Kleber, Marcus E A1 - Hicks, Andrew A A1 - Nolte, Ilja M A1 - Johansson, Asa A1 - Murgia, Federico A1 - Wild, Sarah H A1 - Bakker, Stephan J L A1 - Peden, John F A1 - Dehghan, Abbas A1 - Steri, Maristella A1 - Tenesa, Albert A1 - Lagou, Vasiliki A1 - Salo, Perttu A1 - Mangino, Massimo A1 - Rose, Lynda M A1 - Lehtimäki, Terho A1 - Woodward, Owen M A1 - Okada, Yukinori A1 - Tin, Adrienne A1 - Müller, Christian A1 - Oldmeadow, Christopher A1 - Putku, Margus A1 - Czamara, Darina A1 - Kraft, Peter A1 - Frogheri, Laura A1 - Thun, Gian Andri A1 - Grotevendt, Anne A1 - Gislason, Gauti Kjartan A1 - Harris, Tamara B A1 - Launer, Lenore J A1 - McArdle, Patrick A1 - Shuldiner, Alan R A1 - Boerwinkle, Eric A1 - Coresh, Josef A1 - Schmidt, Helena A1 - Schallert, Michael A1 - Martin, Nicholas G A1 - Montgomery, Grant W A1 - Kubo, Michiaki A1 - Nakamura, Yusuke A1 - Tanaka, Toshihiro A1 - Munroe, Patricia B A1 - Samani, Nilesh J A1 - Jacobs, David R A1 - Liu, Kiang A1 - D'Adamo, Pio A1 - Ulivi, Sheila A1 - Rotter, Jerome I A1 - Psaty, Bruce M A1 - Vollenweider, Peter A1 - Waeber, Gérard A1 - Campbell, Susan A1 - Devuyst, Olivier A1 - Navarro, Pau A1 - Kolcic, Ivana A1 - Hastie, Nicholas A1 - Balkau, Beverley A1 - Froguel, Philippe A1 - Esko, Tõnu A1 - Salumets, Andres A1 - Khaw, Kay Tee A1 - Langenberg, Claudia A1 - Wareham, Nicholas J A1 - Isaacs, Aaron A1 - Kraja, Aldi A1 - Zhang, Qunyuan A1 - Wild, Philipp S A1 - Scott, Rodney J A1 - Holliday, Elizabeth G A1 - Org, Elin A1 - Viigimaa, Margus A1 - Bandinelli, Stefania A1 - Metter, Jeffrey E A1 - Lupo, Antonio A1 - Trabetti, Elisabetta A1 - Sorice, Rossella A1 - Döring, Angela A1 - Lattka, Eva A1 - Strauch, Konstantin A1 - Theis, Fabian A1 - Waldenberger, Melanie A1 - Wichmann, H-Erich A1 - Davies, Gail A1 - Gow, Alan J A1 - Bruinenberg, Marcel A1 - Stolk, Ronald P A1 - Kooner, Jaspal S A1 - Zhang, Weihua A1 - Winkelmann, Bernhard R A1 - Boehm, Bernhard O A1 - Lucae, Susanne A1 - Penninx, Brenda W A1 - Smit, Johannes H A1 - Curhan, Gary A1 - Mudgal, Poorva A1 - Plenge, Robert M A1 - Portas, Laura A1 - Persico, Ivana A1 - Kirin, Mirna A1 - Wilson, James F A1 - Mateo Leach, Irene A1 - van Gilst, Wiek H A1 - Goel, Anuj A1 - Ongen, Halit A1 - Hofman, Albert A1 - Rivadeneira, Fernando A1 - Uitterlinden, André G A1 - Imboden, Medea A1 - von Eckardstein, Arnold A1 - Cucca, Francesco A1 - Nagaraja, Ramaiah A1 - Piras, Maria Grazia A1 - Nauck, Matthias A1 - Schurmann, Claudia A1 - Budde, Kathrin A1 - Ernst, Florian A1 - Farrington, Susan M A1 - Theodoratou, Evropi A1 - Prokopenko, Inga A1 - Stumvoll, Michael A1 - Jula, Antti A1 - Perola, Markus A1 - Salomaa, Veikko A1 - Shin, So-Youn A1 - Spector, Tim D A1 - Sala, Cinzia A1 - Ridker, Paul M A1 - Kähönen, Mika A1 - Viikari, Jorma A1 - Hengstenberg, Christian A1 - Nelson, Christopher P A1 - Meschia, James F A1 - Nalls, Michael A A1 - Sharma, Pankaj A1 - Singleton, Andrew B A1 - Kamatani, Naoyuki A1 - Zeller, Tanja A1 - Burnier, Michel A1 - Attia, John A1 - Laan, Maris A1 - Klopp, Norman A1 - Hillege, Hans L A1 - Kloiber, Stefan A1 - Choi, Hyon A1 - Pirastu, Mario A1 - Tore, Silvia A1 - Probst-Hensch, Nicole M A1 - Völzke, Henry A1 - Gudnason, Vilmundur A1 - Parsa, Afshin A1 - Schmidt, Reinhold A1 - Whitfield, John B A1 - Fornage, Myriam A1 - Gasparini, Paolo A1 - Siscovick, David S A1 - Polasek, Ozren A1 - Campbell, Harry A1 - Rudan, Igor A1 - Bouatia-Naji, Nabila A1 - Metspalu, Andres A1 - Loos, Ruth J F A1 - van Duijn, Cornelia M A1 - Borecki, Ingrid B A1 - Ferrucci, Luigi A1 - Gambaro, Giovanni A1 - Deary, Ian J A1 - Wolffenbuttel, Bruce H R A1 - Chambers, John C A1 - März, Winfried A1 - Pramstaller, Peter P A1 - Snieder, Harold A1 - Gyllensten, Ulf A1 - Wright, Alan F A1 - Navis, Gerjan A1 - Watkins, Hugh A1 - Witteman, Jacqueline C M A1 - Sanna, Serena A1 - Schipf, Sabine A1 - Dunlop, Malcolm G A1 - Tönjes, Anke A1 - Ripatti, Samuli A1 - Soranzo, Nicole A1 - Toniolo, Daniela A1 - Chasman, Daniel I A1 - Raitakari, Olli A1 - Kao, W H Linda A1 - Ciullo, Marina A1 - Fox, Caroline S A1 - Caulfield, Mark A1 - Bochud, Murielle A1 - Gieger, Christian KW - Analysis of Variance KW - European Continental Ancestry Group KW - Gene Frequency KW - Genetic Loci KW - Genome-Wide Association Study KW - Glucose KW - Gout KW - Humans KW - Inhibins KW - Polymorphism, Single Nucleotide KW - Signal Transduction KW - Uric Acid AB -

Elevated serum urate concentrations can cause gout, a prevalent and painful inflammatory arthritis. By combining data from >140,000 individuals of European ancestry within the Global Urate Genetics Consortium (GUGC), we identified and replicated 28 genome-wide significant loci in association with serum urate concentrations (18 new regions in or near TRIM46, INHBB, SFMBT1, TMEM171, VEGFA, BAZ1B, PRKAG2, STC1, HNF4G, A1CF, ATXN2, UBE2Q2, IGF1R, NFAT5, MAF, HLF, ACVR1B-ACVRL1 and B3GNT4). Associations for many of the loci were of similar magnitude in individuals of non-European ancestry. We further characterized these loci for associations with gout, transcript expression and the fractional excretion of urate. Network analyses implicate the inhibins-activins signaling pathways and glucose metabolism in systemic urate control. New candidate genes for serum urate concentration highlight the importance of metabolic control of urate production and excretion, which may have implications for the treatment and prevention of gout.

VL - 45 IS - 2 U1 - http://www.ncbi.nlm.nih.gov/pubmed/23263486?dopt=Abstract ER - TY - JOUR T1 - Meta-analysis of genome-wide association studies identifies six new Loci for serum calcium concentrations. JF - PLoS Genet Y1 - 2013 A1 - O'Seaghdha, Conall M A1 - Wu, Hongsheng A1 - Yang, Qiong A1 - Kapur, Karen A1 - Guessous, Idris A1 - Zuber, Annie Mercier A1 - Köttgen, Anna A1 - Stoudmann, Candice A1 - Teumer, Alexander A1 - Kutalik, Zoltán A1 - Mangino, Massimo A1 - Dehghan, Abbas A1 - Zhang, Weihua A1 - Eiriksdottir, Gudny A1 - Li, Guo A1 - Tanaka, Toshiko A1 - Portas, Laura A1 - Lopez, Lorna M A1 - Hayward, Caroline A1 - Lohman, Kurt A1 - Matsuda, Koichi A1 - Padmanabhan, Sandosh A1 - Firsov, Dmitri A1 - Sorice, Rossella A1 - Ulivi, Sheila A1 - Brockhaus, A Catharina A1 - Kleber, Marcus E A1 - Mahajan, Anubha A1 - Ernst, Florian D A1 - Gudnason, Vilmundur A1 - Launer, Lenore J A1 - Mace, Aurelien A1 - Boerwinckle, Eric A1 - Arking, Dan E A1 - Tanikawa, Chizu A1 - Nakamura, Yusuke A1 - Brown, Morris J A1 - Gaspoz, Jean-Michel A1 - Theler, Jean-Marc A1 - Siscovick, David S A1 - Psaty, Bruce M A1 - Bergmann, Sven A1 - Vollenweider, Peter A1 - Vitart, Veronique A1 - Wright, Alan F A1 - Zemunik, Tatijana A1 - Boban, Mladen A1 - Kolcic, Ivana A1 - Navarro, Pau A1 - Brown, Edward M A1 - Estrada, Karol A1 - Ding, Jingzhong A1 - Harris, Tamara B A1 - Bandinelli, Stefania A1 - Hernandez, Dena A1 - Singleton, Andrew B A1 - Girotto, Giorgia A1 - Ruggiero, Daniela A1 - d'Adamo, Adamo Pio A1 - Robino, Antonietta A1 - Meitinger, Thomas A1 - Meisinger, Christa A1 - Davies, Gail A1 - Starr, John M A1 - Chambers, John C A1 - Boehm, Bernhard O A1 - Winkelmann, Bernhard R A1 - Huang, Jie A1 - Murgia, Federico A1 - Wild, Sarah H A1 - Campbell, Harry A1 - Morris, Andrew P A1 - Franco, Oscar H A1 - Hofman, Albert A1 - Uitterlinden, André G A1 - Rivadeneira, Fernando A1 - Völker, Uwe A1 - Hannemann, Anke A1 - Biffar, Reiner A1 - Hoffmann, Wolfgang A1 - Shin, So-Youn A1 - Lescuyer, Pierre A1 - Henry, Hughes A1 - Schurmann, Claudia A1 - Munroe, Patricia B A1 - Gasparini, Paolo A1 - Pirastu, Nicola A1 - Ciullo, Marina A1 - Gieger, Christian A1 - März, Winfried A1 - Lind, Lars A1 - Spector, Tim D A1 - Smith, Albert V A1 - Rudan, Igor A1 - Wilson, James F A1 - Polasek, Ozren A1 - Deary, Ian J A1 - Pirastu, Mario A1 - Ferrucci, Luigi A1 - Liu, Yongmei A1 - Kestenbaum, Bryan A1 - Kooner, Jaspal S A1 - Witteman, Jacqueline C M A1 - Nauck, Matthias A1 - Kao, W H Linda A1 - Wallaschofski, Henri A1 - Bonny, Olivier A1 - Fox, Caroline S A1 - Bochud, Murielle KW - Animals KW - Bone and Bones KW - Bone Density KW - Calcium KW - European Continental Ancestry Group KW - Gene Expression Regulation KW - Genome-Wide Association Study KW - Homeostasis KW - Humans KW - Kidney KW - Mice KW - Polymorphism, Single Nucleotide AB -

Calcium is vital to the normal functioning of multiple organ systems and its serum concentration is tightly regulated. Apart from CASR, the genes associated with serum calcium are largely unknown. We conducted a genome-wide association meta-analysis of 39,400 individuals from 17 population-based cohorts and investigated the 14 most strongly associated loci in ≤ 21,679 additional individuals. Seven loci (six new regions) in association with serum calcium were identified and replicated. Rs1570669 near CYP24A1 (P = 9.1E-12), rs10491003 upstream of GATA3 (P = 4.8E-09) and rs7481584 in CARS (P = 1.2E-10) implicate regions involved in Mendelian calcemic disorders: Rs1550532 in DGKD (P = 8.2E-11), also associated with bone density, and rs7336933 near DGKH/KIAA0564 (P = 9.1E-10) are near genes that encode distinct isoforms of diacylglycerol kinase. Rs780094 is in GCKR. We characterized the expression of these genes in gut, kidney, and bone, and demonstrate modulation of gene expression in bone in response to dietary calcium in mice. Our results shed new light on the genetics of calcium homeostasis.

VL - 9 IS - 9 U1 - http://www.ncbi.nlm.nih.gov/pubmed/24068962?dopt=Abstract ER - TY - JOUR T1 - Association of a cystatin C gene variant with cystatin C levels, CKD, and risk of incident cardiovascular disease and mortality. JF - Am J Kidney Dis Y1 - 2014 A1 - O'Seaghdha, Conall M A1 - Tin, Adrienne A1 - Yang, Qiong A1 - Katz, Ronit A1 - Liu, Yongmei A1 - Harris, Tamara A1 - Astor, Brad A1 - Coresh, Josef A1 - Fox, Caroline S A1 - Kao, W H Linda A1 - Shlipak, Michael G KW - Aged KW - Bias KW - Biomarkers KW - Cardiovascular Diseases KW - Creatinine KW - Cystatin C KW - Female KW - Genetic Variation KW - Glomerular Filtration Rate KW - Humans KW - Male KW - Middle Aged KW - Polymorphism, Single Nucleotide KW - Renal Insufficiency, Chronic KW - Risk Assessment KW - Risk Factors KW - Severity of Illness Index KW - Statistics as Topic KW - Survival Rate AB -

BACKGROUND: Carriers of the T allele of the single-nucleotide polymorphism rs13038305 tend to have lower cystatin C levels and higher cystatin C-based estimated glomerular filtration rate (eGFRcys). Adjusting for this genetic effect on cystatin C concentrations may improve GFR estimation, reclassify cases of chronic kidney disease (CKD), and strengthen risk estimates for cardiovascular disease (CVD) and mortality.

STUDY DESIGN: Observational.

SETTING & POPULATION: 4 population-based cohorts: Atherosclerosis Risk in Communities (ARIC), Cardiovascular Health (CHS), Framingham Heart (FHS), and Health, Aging, and Body Composition (Health ABC) studies.

PREDICTORS: We estimated the association of rs13038305 with eGFRcys and serum creatinine-based eGFR (eGFRcr) and performed longitudinal analyses of the associations of eGFRcys with mortality and cardiovascular events following adjustment for rs13038305.

OUTCOMES: We assessed reclassification by genotype-adjusted eGFRcys across CKD categories: <45, 45-59, 60-89, and ≥ 90 mL/min/1.73 m(2). We compared mortality and CVD outcomes in those reclassified to a worse eGFRcys category with those unaffected. Results were combined using fixed-effect inverse-variance meta-analysis.

RESULTS: In 14,645 participants, each copy of the T allele of rs13038305 (frequency, 21%) was associated with a 6.4% lower cystatin C concentration, 5.5-mL/min/1.73 m(2) higher eGFRcys, and 36% [95% CI, 29%-41%] lower odds of CKD. Associations with CVD (HR, 1.17; 95% CI, 1.14-1.20) and mortality (HR, 1.22; 95% CI, 1.19-1.24) per 10-mL/min/1.73 m(2) lower eGFRcys were similar with or without rs13038305 adjustment. 1,134 (7.7%) participants were reclassified to a worse CKD category following rs13038305 adjustment, and rates of CVD and mortality were higher in individuals who were reclassified. However, the overall net reclassification index was not significant for either outcome, at 0.009 (95% CI, -0.003 to 0.022) for mortality and 0.014 (95% CI, 0.0 to 0.028) for CVD.

LIMITATIONS: rs13038305 explains only a small proportion of cystatin C variation.

CONCLUSIONS: Statistical adjustment can correct a genetic bias in GFR estimates based on cystatin C in carriers of the T allele of rs13038305 and result in changes in disease classification. However, on a population level, the effects on overall reclassification of CKD status are modest.

VL - 63 IS - 1 U1 - http://www.ncbi.nlm.nih.gov/pubmed/23932088?dopt=Abstract ER -