Targeted sequencing of genome wide significant loci associated with bone mineral density (BMD) reveals significant novel and rare variants: the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) targeted sequencing study.

TitleTargeted sequencing of genome wide significant loci associated with bone mineral density (BMD) reveals significant novel and rare variants: the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) targeted sequencing study.
Publication TypeJournal Article
Year of Publication2016
AuthorsHsu, Y-H, Li, G, Liu, C-T, Brody, JA, Karasik, D, Chou, W-C, Demissie, S, Nandakumar, K, Zhou, Y, Cheng, C-H, Gill, R, Gibbs, RA, Muzny, DM, Santibanez, J, Estrada, K, Rivadeneira, F, Harris, T, Gudnason, V, Uitterlinden, A, Psaty, BM, Robbins, JA, L Cupples, A, Kiel, DP
JournalHum Mol Genet
Date Published2016 Sep 11
ISSN1460-2083
Abstract

BACKGROUND: Bone mineral density (BMD) is a heritable phenotype that predicts fracture risk. We performed fine-mapping by targeted sequencing at WLS, MEF2C, ARHGAP1/F2 and JAG1 loci prioritized by eQTL and bioinformatic approaches among 56 BMD loci from our previous GWAS meta-analysis.

METHODS AND RESULTS: Targeted sequencing was conducted in 1,291 Caucasians from the Framingham Heart Study (n = 925) and Cardiovascular Health Study (n = 366), including 206 women and men with extreme low femoral neck (FN) BMD. A total of 4,964 sequence variants (SNVs) were observed and 80% were rare with MAF 

CONCLUSIONS: Our findings suggest that protein-coding variants in selected GWAS loci did not contribute to GWAS signals. By performing targeted sequencing in GWAS loci, we identified less-common and rare non-coding SNVs associated with BMD independently from GWAS common SNPs, suggesting both common and less-common variants may associate with disease risks and phenotypes in the same loci.

DOI10.1093/hmg/ddw289
Alternate JournalHum. Mol. Genet.
PubMed ID27616567
Grant ListR01 AR057118 / AR / NIAMS NIH HHS / United States