Annals of the rheumatic diseases · 2008
The cyclic GMP-dependent protein kinase II gene associates with gout disease: identified by genome-wide analysis and case-control study.
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Chang S-J, Tsai M-H, Ko Y-C, Tsai P-C, Chen C-J, Lai H-M
Аннотация
OBJECTIVE: To identify the position of a gout susceptibility gene.
METHODS: A genome-wide scan was performed using 382 random polymorphic microsatellite markers spread across 22 autosomes in a Taiwanese family with gout to screen for the gout susceptibility genetic marker. Its association with gout by 33 single nucleotide polymorphisms (SNP) in 148 matched case-control subjects was confirmed. The family with gout comprised eight patients with gout and 10 gout-free subjects; case-control subjects were 74 male patients with gout and 74 healthy controls matched by age.
RESULTS: Analysis of the genome-wide scan results by a non-parametric linkage method found that chromosome 4q21 contains a locus significantly linked with gout (D4S3243 at 81 289 553 bp; p = 0.004; LOD score = 5.13). In SNP genotyping analysis at the neighbourhood regions of marker D4S3243 for the case-control subjects, the polymorphisms rs7688672 and rs6837293, located on the cGMP-dependent protein kinase II (cGK II) gene, were found to relate significantly to gout disease in a recessive model after adjustment of hyperuricaemia (OR = 2.89, 95% CI 1.19 to 7.02 and OR = 2.72, 95% CI 1.13 to 6.54, respectively).
CONCLUSIONS: This study suggests that the cGK II gene on chromosome 4q21 is most likely to harbour gout disease independently of hyperuricaemia and is inherited recessively.
METHODS: A genome-wide scan was performed using 382 random polymorphic microsatellite markers spread across 22 autosomes in a Taiwanese family with gout to screen for the gout susceptibility genetic marker. Its association with gout by 33 single nucleotide polymorphisms (SNP) in 148 matched case-control subjects was confirmed. The family with gout comprised eight patients with gout and 10 gout-free subjects; case-control subjects were 74 male patients with gout and 74 healthy controls matched by age.
RESULTS: Analysis of the genome-wide scan results by a non-parametric linkage method found that chromosome 4q21 contains a locus significantly linked with gout (D4S3243 at 81 289 553 bp; p = 0.004; LOD score = 5.13). In SNP genotyping analysis at the neighbourhood regions of marker D4S3243 for the case-control subjects, the polymorphisms rs7688672 and rs6837293, located on the cGMP-dependent protein kinase II (cGK II) gene, were found to relate significantly to gout disease in a recessive model after adjustment of hyperuricaemia (OR = 2.89, 95% CI 1.19 to 7.02 and OR = 2.72, 95% CI 1.13 to 6.54, respectively).
CONCLUSIONS: This study suggests that the cGK II gene on chromosome 4q21 is most likely to harbour gout disease independently of hyperuricaemia and is inherited recessively.