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Association of genetic variants with chronic kidney disease in Japanese individuals.

ABSTRACT: Although genetic linkage analyses and association studies have implicated several loci and candidate genes in predisposition to chronic kidney disease (CKD), the genes that underlie genetic susceptibility to this condition have remained uncharacterized. The purpose of the present study was to identify genetic variants that confer susceptibility to CKD in Japanese individuals.The study population comprised 5217 Japanese individuals (2955 men, 2262 women), including 778 subjects (480 men, 298 women) with CKD [estimated GFR (eGFR), <50 ml min(-1) 1.73 m(-2)] and 4439 controls (2475 men, 1964 women; eGFR, > or =60 ml min(-1) 1.73 m(-2)). The genotypes for 40 polymorphisms of 32 candidate genes were determined.The chi-square test and multivariable logistic regression analysis with adjustment for covariates revealed that the -219G-->T polymorphism of APOE, the -519A-->G of MMP1, the -866G-->A of UCP2, the -1607/1G-->2G of MMP1, the A-->G (Lys45Glu) of MMP3, the G-->A (Ala163Thr) of AGTR1, the G-->A (Gly670Arg) of PECAM1, and the -55C-->T of UCP3 were significantly (false discovery rate <0.05) associated with CKD. Comparison of allele frequencies of these polymorphisms by the chi-square test between subgroups of CKD and control subjects individually matched for covariates revealed that the -519A-->G of MMP1 and the -866G-->A of UCP2 were significantly (P < 0.05) associated with CKD.MMP1 and UCP2 may be susceptibility loci for CKD in Japanese individuals. Determination of genotypes for these polymorphisms may prove informative for prediction of genetic risk for CKD.

SUBMITTER: Yoshida T

PROVIDER: S-EPMC2676181 | biostudies-literature | 2009 May

REPOSITORIES: biostudies-literature

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Association of genetic variants with chronic kidney disease in Japanese individuals.

Yoshida Tetsuro T Kato Kimihiko K Fujimaki Tetsuo T Yokoi Kiyoshi K Oguri Mitsutoshi M Watanabe Sachiro S Metoki Norifumi N Yoshida Hidemi H Satoh Kei K Aoyagi Yukitoshi Y Nishigaki Yutaka Y Tanaka Masashi M Nozawa Yoshinori Y Kimura Genjiro G Yamada Yoshiji Y

Clinical journal of the American Society of Nephrology : CJASN 20090430 5

<h4>Background and objectives</h4>Although genetic linkage analyses and association studies have implicated several loci and candidate genes in predisposition to chronic kidney disease (CKD), the genes that underlie genetic susceptibility to this condition have remained uncharacterized. The purpose of the present study was to identify genetic variants that confer susceptibility to CKD in Japanese individuals.<h4>Design, setting, participants, & measurements</h4>The study population comprised 521 ...[more]

PMID: 19406964

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Project description:We previously identified 9 genes and chromosomal region 3q28 as susceptibility loci for myocardial infarction, ischemic stroke, or chronic kidney disease (CKD) in Japanese individuals by genome-wide or candidate gene association studies. In the present study, we examined the association of 13 polymorphisms at these 10 loci with the prevalence of hypertriglyceridemia, hyper-low-density lipoprotein (LDL) cholesterolemia, hypo-high-density lipoprotein (HDL) cholesterolemia, or CKD in community-dwelling Japanese individuals. The study subjects comprised 6,027 individuals who were recruited to the Inabe Health and Longevity Study, a longitudinal genetic epidemiological study of atherosclerotic, cardiovascular and metabolic diseases. The subjects were recruited from individuals who visited the Health Care Center at Inabe General Hospital for an annual health checkup, and they were followed up each year (mean follow?up period, 5 years). Longitudinal analysis with a generalized estimating equation and with adjustment for covariates revealed that rs6929846 of butyrophilin, subfamily 2, member A1 gene (BTN2A1) was significantly associated with the prevalence of hypertriglyceridemia (P=0.0001), hyper-LDL cholesterolemia (P=0.0004), and CKD (P=0.0007); rs2569512 of interleukin enhancer binding factor 3 (ILF3) was associated with hyper-LDL cholesterolemia (P=0.0029); and rs2074379 (P=0.0019) and rs2074388 (P=0.0029) of alpha-kinase 1 (ALPK1) were associated with CKD. Longitudinal analysis with a generalized linear mixed-effect model and with adjustment for covariates among all individuals revealed that rs6929846 of BTN2A1 was significantly associated with the serum concentrations of triglycerides (P=0.0011), LDL cholesterol (P=3.3 x 10(-5)), and creatinine (P=0.0006), as well as with the estimated glomerular filtration rate (eGFR) (P=0.0004); rs2569512 of ILF3 was shown to be associated with the serum concentration of LDL cholesterol (P=0.0221); and rs2074379 (P=0.0302) and rs2074388 (P=0.0336) of ALPK1 were shown to be associated with the serum concentration of creatinine. Similar analysis among individuals not taking any anti?dyslipidemic medication revealed that rs6929846 of BTN2A1 was significantly associated with the serum concentrations of triglycerides (P=8.3 x 10?5) and LDL cholesterol (P=0.0004), and that rs2569512 of ILF3 was associated with the serum concentration of LDL cholesterol (P=0.0010). BTN2A1 may thus be a susceptibility gene for hypertriglyceridemia, hyper?LDL cholesterolemia and CKD in Japanese individuals.

Dataset Information

Association of genetic variants with chronic kidney disease in Japanese individuals.

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Association of genetic variants with chronic kidney disease in Japanese individuals.

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