“…Gout is a kind of in ammatory arthritis caused by the monosodium urate(MSU) crystals deposited in joints and the surrounding soft tissues,which derives from long-standing hyperuricemia [1] .The course of gout include four stages:asymptomatic hyperuricemia,acute gouty arthritis,intercritical gout and chronic gouty arthritis [2] .Patients can suffer signi cantly attack mainly about the joint pain with sudden onset,fever,redness and swelling when acute gout episodes [3] .This process can affect the patient's quality of life seriously,even functional disability,therefore,gout aroused people's attention increasingly.Nevertheless,with the continuous improvement of people's dietary patterns and lifestyle,the prevalence of gout are on the increase remarkable [4] .A large number of epidemiological data showed that the prevalence of gout in the world is about 0.1-10% on average [5][6] .In western developed countries,there are 3-6% of men and 1-2% of women have gout [7] .There is evidenced that [8] the prevalence of gout is more than 1% in Japanese men who older than 30 years,and in China,there might be 2 per 100 inhabitants suffer from gout [9] . At present,the pathogenesis of gout is still in exploration.Previous studies have con rmed that environmental,diet and genetic factors play roles in the development and incidence of gout.For example,vegetarian diet can reduce the risk of gout in Taiwan by Chiu THT et al [10] .And from a genetic standpoint,substantial genome-wide association studies(GWAS), meta-analyses and case-control studies have found that ABCG2,PKD2,SLC2A9,KCNQ1,SLC22A12,SLC17A1,NLRP3 and so on gene polymorphism are in uence the susceptibility of gout [11][12] .Researchers also agreed that genetic factors are the main factors affecting the onset of gout.…”