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Voruganti VS, Kent JW, Debnath S, et al. Genome-wide association analysis confirms and extends the association of SLC2A9 with serum uric acid levels to Mexican Americans. Front Genet. 2013;4:279doi: 10.3389/fgene.2013.00279.
Voruganti, V. S., Kent, J. W., Debnath, S., Cole, S. A., Haack, K., Göring, H. H., Carless, M. A., Curran, J. E., Johnson, M. P., Almasy, L., Dyer, T. D., Maccluer, J. W., Moses, E. K., Abboud, H. E., Mahaney, M. C., Blangero, J., & Comuzzie, A. G. (2013). Genome-wide association analysis confirms and extends the association of SLC2A9 with serum uric acid levels to Mexican Americans. Frontiers in genetics, 4279. https://doi.org/10.3389/fgene.2013.00279
Voruganti, Venkata Saroja, et al. "Genome-wide association analysis confirms and extends the association of SLC2A9 with serum uric acid levels to Mexican Americans." Frontiers in genetics vol. 4 (2013): 279. doi: https://doi.org/10.3389/fgene.2013.00279
Voruganti VS, Kent JW, Debnath S, Cole SA, Haack K, Göring HH, Carless MA, Curran JE, Johnson MP, Almasy L, Dyer TD, Maccluer JW, Moses EK, Abboud HE, Mahaney MC, Blangero J, Comuzzie AG. Genome-wide association analysis confirms and extends the association of SLC2A9 with serum uric acid levels to Mexican Americans. Front Genet. 2013 Dec 16;4:279. doi: 10.3389/fgene.2013.00279. eCollection 2013. PMID: 24379826; PMCID: PMC3863993.
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Front Genet. 2013 Dec 16;4:279. doi: 10.3389/fgene.2013.00279. eCollection 2013.

Genome-wide association analysis confirms and extends the association of SLC2A9 with serum uric acid levels to Mexican Americans.

Frontiers in genetics

Venkata Saroja Voruganti, Jack W Kent, Subrata Debnath, Shelley A Cole, Karin Haack, Harald H H Göring, Melanie A Carless, Joanne E Curran, Matthew P Johnson, Laura Almasy, Thomas D Dyer, Jean W Maccluer, Eric K Moses, Hanna E Abboud, Michael C Mahaney, John Blangero, Anthony G Comuzzie

Affiliations

  1. Department of Genetics, Texas Biomedical Research Institute San Antonio, TX, USA ; Department of Nutrition, Nutrition Research Institute, University of North Carolina at Chapel Hill Kannapolis, NC, USA.
  2. Department of Genetics, Texas Biomedical Research Institute San Antonio, TX, USA.
  3. Division of Nephrology, Department of Medicine, University of Texas Health Science Center at San Antonio San Antonio, TX, USA.
  4. Department of Genetics, Texas Biomedical Research Institute San Antonio, TX, USA ; Centre for Genetic Origins of Health and Disease, University of Western Australia Perth, WA, Australia.

PMID: 24379826 PMCID: PMC3863993 DOI: 10.3389/fgene.2013.00279

Abstract

Increased serum uric acid (SUA) is a risk factor for gout and renal and cardiovascular disease (CVD). The purpose of this study was to identify genetic factors that affect the variation in SUA in 632 Mexican Americans participants of the San Antonio Family Heart Study (SAFHS). A genome-wide association (GWA) analysis was performed using the Illumina Human Hap 550K single nucleotide polymorphism (SNP) microarray. We used a linear regression-based association test under an additive model of allelic effect, while accounting for non-independence among family members via a kinship variance component. All analyses were performed in the software package SOLAR. SNPs rs6832439, rs13131257, and rs737267 in solute carrier protein 2 family, member 9 (SLC2A9) were associated with SUA at genome-wide significance (p < 1.3 × 10(-7)). The minor alleles of these SNPs had frequencies of 36.2, 36.2, and 38.2%, respectively, and were associated with decreasing SUA levels. All of these SNPs were located in introns 3-7 of SLC2A9, the location of the previously reported associations in European populations. When analyzed for association with cardiovascular-renal disease risk factors, conditional on SLC2A9 SNPs strongly associated with SUA, significant associations were found for SLC2A9 SNPs with BMI, body weight, and waist circumference (p < 1.4 × 10(-3)) and suggestive associations with albumin-creatinine ratio and total antioxidant status (TAS). The SLC2A9 gene encodes an urate transporter that has considerable influence on variation in SUA. In addition to the primary association locus, suggestive evidence (p < 1.9 × 10(-6)) for joint linkage/association (JLA) was found at a previously-reported urate quantitative trait locus (Logarithm of odds score = 3.6) on 3p26.3. In summary, our GWAS extends and confirms the association of SLC2A9 with SUA for the first time in a Mexican American cohort and also shows for the first time its association with cardiovascular-renal disease risk factors.

Keywords: hyperuricemia; joint linkage/association analysis; kinship; variance components decomposition approach

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