TY - JOUR T1 - Modulation of genetic associations with serum urate levels by body-mass-index in humans. JF - PLoS One Y1 - 2015 A1 - Huffman, Jennifer E A1 - Albrecht, Eva A1 - Teumer, Alexander A1 - Mangino, Massimo A1 - Kapur, Karen A1 - Johnson, Toby A1 - Kutalik, Zoltán A1 - Pirastu, Nicola A1 - Pistis, Giorgio A1 - Lopez, Lorna M A1 - Haller, Toomas A1 - Salo, Perttu A1 - Goel, Anuj A1 - Li, Man A1 - Tanaka, Toshiko A1 - Dehghan, Abbas A1 - Ruggiero, Daniela A1 - Malerba, Giovanni A1 - Smith, Albert V A1 - Nolte, Ilja M A1 - Portas, Laura A1 - Phipps-Green, Amanda A1 - Boteva, Lora A1 - Navarro, Pau A1 - Johansson, Åsa A1 - Hicks, Andrew A A1 - Polasek, Ozren A1 - Esko, Tõnu A1 - Peden, John F A1 - Harris, Sarah E A1 - Murgia, Federico A1 - Wild, Sarah H A1 - Tenesa, Albert A1 - Tin, Adrienne A1 - Mihailov, Evelin A1 - Grotevendt, Anne A1 - Gislason, Gauti K A1 - Coresh, Josef A1 - d'Adamo, Pio A1 - Ulivi, Sheila A1 - Vollenweider, Peter A1 - Waeber, Gerard A1 - Campbell, Susan A1 - Kolcic, Ivana A1 - Fisher, Krista A1 - Viigimaa, Margus A1 - Metter, Jeffrey E A1 - Masciullo, Corrado A1 - Trabetti, Elisabetta A1 - Bombieri, Cristina A1 - Sorice, Rossella A1 - Döring, Angela A1 - Reischl, Eva A1 - Strauch, Konstantin A1 - Hofman, Albert A1 - Uitterlinden, André G A1 - Waldenberger, Melanie A1 - Wichmann, H-Erich A1 - Davies, Gail A1 - Gow, Alan J A1 - Dalbeth, Nicola A1 - Stamp, Lisa A1 - Smit, Johannes H A1 - Kirin, Mirna A1 - Nagaraja, Ramaiah A1 - Nauck, Matthias A1 - Schurmann, Claudia A1 - Budde, Kathrin A1 - Farrington, Susan M A1 - Theodoratou, Evropi A1 - Jula, Antti A1 - Salomaa, Veikko A1 - Sala, Cinzia A1 - Hengstenberg, Christian A1 - Burnier, Michel A1 - Mägi, Reedik A1 - Klopp, Norman A1 - Kloiber, Stefan A1 - Schipf, Sabine A1 - Ripatti, Samuli A1 - Cabras, Stefano A1 - Soranzo, Nicole A1 - Homuth, Georg A1 - Nutile, Teresa A1 - Munroe, Patricia B A1 - Hastie, Nicholas A1 - Campbell, Harry A1 - Rudan, Igor A1 - Cabrera, Claudia A1 - Haley, Chris A1 - Franco, Oscar H A1 - Merriman, Tony R A1 - Gudnason, Vilmundur A1 - Pirastu, Mario A1 - Penninx, Brenda W A1 - Snieder, Harold A1 - Metspalu, Andres A1 - Ciullo, Marina A1 - Pramstaller, Peter P A1 - van Duijn, Cornelia M A1 - Ferrucci, Luigi A1 - Gambaro, Giovanni A1 - Deary, Ian J A1 - Dunlop, Malcolm G A1 - Wilson, James F A1 - Gasparini, Paolo A1 - Gyllensten, Ulf A1 - Spector, Tim D A1 - Wright, Alan F A1 - Hayward, Caroline A1 - Watkins, Hugh A1 - Perola, Markus A1 - Bochud, Murielle A1 - Kao, W H Linda A1 - Caulfield, Mark A1 - Toniolo, Daniela A1 - Völzke, Henry A1 - Gieger, Christian A1 - Köttgen, Anna A1 - Vitart, Veronique AB -

We tested for interactions between body mass index (BMI) and common genetic variants affecting serum urate levels, genome-wide, in up to 42569 participants. Both stratified genome-wide association (GWAS) analyses, in lean, overweight and obese individuals, and regression-type analyses in a non BMI-stratified overall sample were performed. The former did not uncover any novel locus with a major main effect, but supported modulation of effects for some known and potentially new urate loci. The latter highlighted a SNP at RBFOX3 reaching genome-wide significant level (effect size 0.014, 95% CI 0.008-0.02, Pinter= 2.6 x 10-8). Two top loci in interaction term analyses, RBFOX3 and ERO1LB-EDARADD, also displayed suggestive differences in main effect size between the lean and obese strata. All top ranking loci for urate effect differences between BMI categories were novel and most had small magnitude but opposite direction effects between strata. They include the locus RBMS1-TANK (men, Pdifflean-overweight= 4.7 x 10-8), a region that has been associated with several obesity related traits, and TSPYL5 (men, Pdifflean-overweight= 9.1 x 10-8), regulating adipocytes-produced estradiol. The top-ranking known urate loci was ABCG2, the strongest known gout risk locus, with an effect halved in obese compared to lean men (Pdifflean-obese= 2 x 10-4). Finally, pathway analysis suggested a role for N-glycan biosynthesis as a prominent urate-associated pathway in the lean stratum. These results illustrate a potentially powerful way to monitor changes occurring in obesogenic environment.

VL - 10 IS - 3 U1 - http://www.ncbi.nlm.nih.gov/pubmed/25811787?dopt=Abstract ER -