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Vitart V Rudan I Hayward C Gray NK Floyd J Palmer CN Knott SA Kolcic I Polasek O Graessler J Wilson JF Marinaki A Riches PL Shu X Janicijevic B Smolej-Narancic N Gorgoni B Morgan J Campbell S Biloglav Z Barac-Lauc L Pericic M Klaric IM Zgaga L Skaric-Juric T Wild SH Richardson WA Hohenstein P Kimber CH Tenesa A Donnelly LA Fairbanks LD Aringer M McKeigue PM Ralston SH Morris AD Rudan P Hastie ND Campbell H Wright AF 《Nature genetics》2008,40(4):437-442
Uric acid is the end product of purine metabolism in humans and great apes, which have lost hepatic uricase activity, leading to uniquely high serum uric acid concentrations (200-500 microM) compared with other mammals (3-120 microM). About 70% of daily urate disposal occurs via the kidneys, and in 5-25% of the human population, impaired renal excretion leads to hyperuricemia. About 10% of people with hyperuricemia develop gout, an inflammatory arthritis that results from deposition of monosodium urate crystals in the joint. We have identified genetic variants within a transporter gene, SLC2A9, that explain 1.7-5.3% of the variance in serum uric acid concentrations, following a genome-wide association scan in a Croatian population sample. SLC2A9 variants were also associated with low fractional excretion of uric acid and/or gout in UK, Croatian and German population samples. SLC2A9 is a known fructose transporter, and we now show that it has strong uric acid transport activity in Xenopus laevis oocytes. 相似文献
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