A Genome-Wide Association Study for Hypertensive Kidney Disease in Korean Menopen access
- Authors
- Kim, Hye-Rim; Jin, Hyun-Seok; Eom, Yong-Bin
- Issue Date
- May-2021
- Publisher
- Multidisciplinary Digital Publishing Institute (MDPI)
- Keywords
- hypertensive kidney disease (HKD); estimated glomerular filtration rate (eGFR); FANCM gene; single nucleotide polymorphism (SNP)
- Citation
- Genes, v.12, no.5
- Journal Title
- Genes
- Volume
- 12
- Number
- 5
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/18868
- DOI
- 10.3390/genes12050751
- ISSN
- 2073-4425
- Abstract
- Hypertension is one of the major risk factors for chronic kidney disease (CKD), and the coexistence of hypertension and CKD increases morbidity and mortality. Although many genetic factors have been identified separately for hypertension and kidney disease, studies specifically focused on hypertensive kidney disease (HKD) have been rare. Therefore, this study aimed to identify loci or genes associated with HKD. A genome-wide association study (GWAS) was conducted using two Korean cohorts, the Health Examinee (HEXA) and Korean Association REsource (KARE). Consequently, 19 single nucleotide polymorphisms (SNPs) were found to be significantly associated with HKD in the discovery and replication phases (p < 5 x 10(-8), p < 0.05, respectively). We further analyzed HKD-related traits such as the estimated glomerular filtration rate (eGFR), creatinine, blood urea nitrogen (BUN), systolic blood pressure (SBP) and diastolic blood pressure (DBP) at the 14q21.2 locus, which showed a strong linkage disequilibrium (LD). Expression quantitative trait loci (eQTL) analysis was also performed to determine whether HKD-related SNPs affect gene expression changes in glomerular and arterial tissues. The results suggested that the FANCM gene may affect the development of HKD through an integrated analysis of eQTL and GWAS and was the most significantly associated candidate gene. Taken together, this study indicated that the FANCM gene is involved in the pathogenesis of HKD. Additionally, our results will be useful in prioritizing other genes for further experiments.
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