Publication: A whole genome SNP genotyping by DNA microarray and candidate gene association study for kidney stone disease
Issued Date
2014-05-02
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ISSN
14712350
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2-s2.0-84901477863
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Mahidol University
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SCOPUS
Bibliographic Citation
BMC Medical Genetics. Vol.15, No.1 (2014)
Suggested Citation
Nanyawan Rungroj, Choochai Nettuwakul, Nirinya Sudtachat, Oranud Praditsap, Nunghathai Sawasdee, Suchai Sritippayawan, Duangporn Chuawattana, Pa thai Yenchitsomanus A whole genome SNP genotyping by DNA microarray and candidate gene association study for kidney stone disease. BMC Medical Genetics. Vol.15, No.1 (2014). doi:10.1186/1471-2350-15-50 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/33266
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Title
A whole genome SNP genotyping by DNA microarray and candidate gene association study for kidney stone disease
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Abstract
Background: Kidney stone disease (KSD) is a complex disorder with unknown etiology in majority of the patients. Genetic and environmental factors may cause the disease. In the present study, we used DNA microarray to genotype single nucleotide polymorphisms (SNP) and performed candidate gene association analysis to determine genetic variations associated with the disease.Methods: A whole genome SNP genotyping by DNA microarray was initially conducted in 101 patients and 105 control subjects. A set of 104 candidate genes reported to be involved in KSD, gathered from public databases and candidate gene association study databases, were evaluated for their variations associated with KSD.Results: Altogether 82 SNPs distributed within 22 candidate gene regions showed significant differences in SNP allele frequencies between the patient and control groups (P < 0.05). Of these, 4 genes including BGLAP, AHSG, CD44, and HAO1, encoding osteocalcin, fetuin-A, CD44-molecule and glycolate oxidase 1, respectively, were further assessed for their associations with the disease because they carried high proportion of SNPs with statistical differences of allele frequencies between the patient and control groups within the gene. The total of 26 SNPs showed significant differences of allele frequencies between the patient and control groups and haplotypes associated with disease risk were identified. The SNP rs759330 located 144 bp downstream of BGLAP where it is a predicted microRNA binding site at 3′UTR of PAQR6 - a gene encoding progestin and adipoQ receptor family member VI, was genotyped in 216 patients and 216 control subjects and found to have significant differences in its genotype and allele frequencies (P = 0.0007, OR 2.02 and P = 0.0001, OR 2.02, respectively).Conclusions: Our results suggest that these candidate genes are associated with KSD and PAQR6 comes into our view as the most potent candidate since associated SNP rs759330 is located in the miRNA binding site and may affect mRNA expression level. © 2014 Rungroj et al.; licensee BioMed Central Ltd.