06047nas a2201393 4500008004100000022001400041245010400055210006900159260000900228300001300237490000600250520209200256653001402348653003902362653002602401653004002427653001102467653001702478653003402495653001102529653000902540653001202549653003602561653002002597100001802617700001902635700002002654700001802674700002302692700001902715700002402734700002102758700002202779700001502801700002802816700002502844700001602869700002202885700002202907700002302929700001802952700001202970700002802982700001803010700001503028700002403043700002403067700002803091700001903119700001703138700002503155700001603180700002203196700001903218700002003237700002303257700002203280700002803302700001703330700002003347700002303367700001503390700001703405700002003422700002103442700001803463700002203481700002303503700002303526700003103549700002203580700002003602700001703622700002803639700001403667700002403681700002403705700002203729700002103751700001803772700001403790700003203804700002503836700002403861700001703885700002403902700002103926700002103947700002803968700002203996700002004018700002104038700002104059700002704080700002204107700002304129700002104152700002404173700001704197700002404214700002304238700002204261700002104283700002504304700002304329700002204352700001904374700002204393700002104415700002804436700002304464700001804487700002204505700002504527700002504552700001904577700002104596856003604617 2013 eng d a1553-740400aGenome-wide association of body fat distribution in African ancestry populations suggests new loci.0 aGenomewide association of body fat distribution in African ances c2013 ae10036810 v93 a
Central obesity, measured by waist circumference (WC) or waist-hip ratio (WHR), is a marker of body fat distribution. Although obesity disproportionately affects minority populations, few studies have conducted genome-wide association study (GWAS) of fat distribution among those of predominantly African ancestry (AA). We performed GWAS of WC and WHR, adjusted and unadjusted for BMI, in up to 33,591 and 27,350 AA individuals, respectively. We identified loci associated with fat distribution in AA individuals using meta-analyses of GWA results for WC and WHR (stage 1). Overall, 25 SNPs with single genomic control (GC)-corrected p-values<5.0 × 10(-6) were followed-up (stage 2) in AA with WC and with WHR. Additionally, we interrogated genomic regions of previously identified European ancestry (EA) WHR loci among AA. In joint analysis of association results including both Stage 1 and 2 cohorts, 2 SNPs demonstrated association, rs2075064 at LHX2, p = 2.24×10(-8) for WC-adjusted-for-BMI, and rs6931262 at RREB1, p = 2.48×10(-8) for WHR-adjusted-for-BMI. However, neither signal was genome-wide significant after double GC-correction (LHX2: p = 6.5 × 10(-8); RREB1: p = 5.7 × 10(-8)). Six of fourteen previously reported loci for waist in EA populations were significant (p<0.05 divided by the number of independent SNPs within the region) in AA studied here (TBX15-WARS2, GRB14, ADAMTS9, LY86, RSPO3, ITPR2-SSPN). Further, we observed associations with metabolic traits: rs13389219 at GRB14 associated with HDL-cholesterol, triglycerides, and fasting insulin, and rs13060013 at ADAMTS9 with HDL-cholesterol and fasting insulin. Finally, we observed nominal evidence for sexual dimorphism, with stronger results in AA women at the GRB14 locus (p for interaction = 0.02). In conclusion, we identified two suggestive loci associated with fat distribution in AA populations in addition to confirming 6 loci previously identified in populations of EA. These findings reinforce the concept that there are fat distribution loci that are independent of generalized adiposity.
10aAdiposity10aAfrican Continental Ancestry Group10aBody Fat Distribution10aEuropean Continental Ancestry Group10aFemale10aGenetic Loci10aGenome-Wide Association Study10aHumans10aMale10aObesity10aPolymorphism, Single Nucleotide10aWaist-Hip Ratio1 aLiu, Ching-Ti1 aMonda, Keri, L1 aTaylor, Kira, C1 aLange, Leslie1 aDemerath, Ellen, W1 aPalmas, Walter1 aWojczynski, Mary, K1 aEllis, Jaclyn, C1 aVitolins, Mara, Z1 aLiu, Simin1 aPapanicolaou, George, J1 aIrvin, Marguerite, R1 aXue, Luting1 aGriffin, Paula, J1 aNalls, Michael, A1 aAdeyemo, Adebowale1 aLiu, Jiankang1 aLi, Guo1 aRuiz-Narvaez, Edward, A1 aChen, Wei-Min1 aChen, Fang1 aHenderson, Brian, E1 aMillikan, Robert, C1 aAmbrosone, Christine, B1 aStrom, Sara, S1 aGuo, Xiuqing1 aAndrews, Jeanette, S1 aSun, Yan, V1 aMosley, Thomas, H1 aYanek, Lisa, R1 aShriner, Daniel1 aHaritunians, Talin1 aRotter, Jerome, I1 aSpeliotes, Elizabeth, K1 aSmith, Megan1 aRosenberg, Lynn1 aMychaleckyj, Josyf1 aNayak, Uma1 aSpruill, Ida1 aGarvey, Timothy1 aPettaway, Curtis1 aNyante, Sarah1 aBandera, Elisa, V1 aBritton, Angela, F1 aZonderman, Alan, B1 aRasmussen-Torvik, Laura, J1 aChen, Yii-Der Ida1 aDing, Jingzhong1 aLohman, Kurt1 aKritchevsky, Stephen, B1 aZhao, Wei1 aPeyser, Patricia, A1 aKardia, Sharon, L R1 aKabagambe, Edmond1 aBroeckel, Ulrich1 aChen, Guanjie1 aZhou, Jie1 aWassertheil-Smoller, Sylvia1 aNeuhouser, Marian, L1 aRampersaud, Evadnie1 aPsaty, Bruce1 aKooperberg, Charles1 aManson, JoAnn, E1 aKuller, Lewis, H1 aOchs-Balcom, Heather, M1 aJohnson, Karen, C1 aSucheston, Lara1 aOrdovas, Jose, M1 aPalmer, Julie, R1 aHaiman, Christopher, A1 aMcKnight, Barbara1 aHoward, Barbara, V1 aBecker, Diane, M1 aBielak, Lawrence, F1 aLiu, Yongmei1 aAllison, Matthew, A1 aGrant, Struan, F A1 aBurke, Gregory, L1 aPatel, Sanjay, R1 aSchreiner, Pamela, J1 aBorecki, Ingrid, B1 aEvans, Michele, K1 aTaylor, Herman1 aSale, Michèle, M1 aHoward, Virginia1 aCarlson, Christopher, S1 aRotimi, Charles, N1 aCushman, Mary1 aHarris, Tamara, B1 aReiner, Alexander, P1 aCupples, Adrienne, L1 aNorth, Kari, E1 aFox, Caroline, S uhttps://chs-nhlbi.org/node/6287