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논문 기본 정보

자료유형
학술저널
저자정보
Lee Minho (Dongguk University-Seoul) Lee Gunhee (The Catholic University of Korea) Kang Hee Gyung (College of Medicine and Seoul National University Children’s Hospital) 서진순 (가톨릭대학교)
저널정보
한국유전학회 Genes & Genomics Genes & Genomics Vol.43 No.9
발행연도
2021.9
수록면
1,049 - 1,057 (9page)
DOI
10.1007/s13258-021-01120-0

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Background Immunoglobulin A nephropathy (IgAN) is one of the most common primary forms of glomerulonephritis, while IgA vasculitis (IgAV) is the most common systemic vasculitis in children. Objective Herein we aimed to uncover single nucleotide polymorphism (SNP) markers associated with these two related diseases by applying association tests and Sanger sequencing. Methods Within the discovery stage, genomic DNA in blood samples from 101 enrolled patients were genotyped by the Korean Biobank Array. Association tests were performed with 397 Korean reference genomes. In the validation stage, 26 independent samples were genotyped by Sanger sequencing. Results Four SNPs were identifed (P<5× 10?8) in the discovery stage. To determine whether the genotypes determined by SNP array were accurate, additional genotyping via Sanger sequencing was performed. As a result, only one SNP, rs9428555, was properly genotyped. In the validation stage, the minor allele (A>G) was found in as many as 15 out of 26 samples (minor allele frequency=0.288), even though this minor allele is rare in East Asians (<3%). Conclusions We found rs9428555 as a novel susceptible locus associated with the development of both IgAN and IgAV in Koreans. Though we cannot conclude rs9428555 is the unique susceptible locus of IgAN and IgAV, it is likely a good marker as the minor allele of this SNP occurred much more often in the patient group here versus within East Asians as a whole.

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