Association of Polymorphisms in Angiotensin Ⅱ Receptor Genes with Aldosterone-producing Adenoma

【摘要】 This study examined the association of polymorphisms in angiotensinⅡreceptor genes(AT1R and AT2R) with the risk for aldosterone-producing adenoma(APA) in a Chinese Han population.Four polymorphisms including rs5182(573T/C) in exon 4,rs5186(1166A/C) in 3’-untranslated region(3’-UTR) in AT1R gene and rs5194(2274G/A) in 3’-UTR,rs1403543(1675G/A) in intron 1 in AT2R gene were detected in 148 APA patients and 192 normal subjects(serving as control) by using a MGB-Taqman probe.The distribution of genotypes of each locus was in accordance with Hardy-Weinberg Equilibrium(HWE) in the APA and control groups(P>0.05).The allele A frequency at rs5194 was significantly higher in the APA group(0.49) than in the control group(0.35)(χ2=12.08,P=0.001).Subjects with homozygotic genotype AA and heterozygotic genotype GA were at an increased risk for APA as compared to those with GG genotype(OR=2.66,95% CI=1.45-4.87;OR=1.67,95% CI=1.02-2.74).Furthermore,rs5194 single-nucleotide polymorphism(SNP) at AT2R gene was significantly associated with APA in additive(OR=1.64,95% CI=1.21-2.20,P=0.001),dominant(OR=1.94,95% CI=1.23-3.06,P=0.003),and recessive model(OR=2.01,95% CI=1.17-3.45,P=0.01).It was concluded that rs5194 polymorphism at AT2R gene was associated with the risk for APA,which may constitute a genetic marker of APA.更多还原

【Abstract】 This study examined the association of polymorphisms in angiotensinⅡreceptor genes(AT1R and AT2R) with the risk for aldosterone-producing adenoma(APA) in a Chinese Han population.Four polymorphisms including rs5182(573T/C) in exon 4,rs5186(1166A/C) in 3’-untranslated region(3’-UTR) in AT1R gene and rs5194(2274G/A) in 3’-UTR,rs1403543(1675G/A) in intron 1 in AT2R gene were detected in 148 APA patients and 192 normal subjects(serving as control) by using a MGB-Taqman probe.The distribution of genotypes of each locus was in accordance with Hardy-Weinberg Equilibrium(HWE) in the APA and control groups(P>0.05).The allele A frequency at rs5194 was significantly higher in the APA group(0.49) than in the control group(0.35)(χ2=12.08,P=0.001).Subjects with homozygotic genotype AA and heterozygotic genotype GA were at an increased risk for APA as compared to those with GG genotype(OR=2.66,95% CI=1.45-4.87;OR=1.67,95% CI=1.02-2.74).Furthermore,rs5194 single-nucleotide polymorphism(SNP) at AT2R gene was significantly associated with APA in additive(OR=1.64,95% CI=1.21-2.20,P=0.001),dominant(OR=1.94,95% CI=1.23-3.06,P=0.003),and recessive model(OR=2.01,95% CI=1.17-3.45,P=0.01).It was concluded that rs5194 polymorphism at AT2R gene was associated with the risk for APA,which may constitute a genetic marker of APA.更多还原