Authors:
Anderson D, Holt BJ, Pennell CE, Holt PG, Hart PH, Blackwell JM
Authors notes:
Genes Immun.
Keywords:
genome-wide association study (GWAS), Western Australian Pregnancy Cohort, Raine Study, 25-hydroxyvitamin D (25(OH)D), single nucleotide polymorphisms (SNPs), chromosome 11p15, chromosome 4q13, chromosome 7p15
Abstract:
This genome-wide association study (GWAS) utilises data from the Western Australian Pregnancy Cohort (Raine) Study for 25-hydroxyvitamin D (25(OH)D) levels measured in blood collected at age 6 years (n=673) and at age 14 years (n=1140).
Replication of significantly associated genes from previous GWASs was found for both ages.
Genome-wide significant associations were found both at age 6 and 14 with single nucleotide polymorphisms (SNPs) on chromosome 11p15 in PDE3B/CYP2R1 and on chromosome 4q13 in GC.
In addition, a novel association was observed at age 6 with SNPs on chromosome 7p15 near NPY that could be of functional interest in highlighting alternative pathways for vitamin D metabolism in this age group and merits further analysis in other cohort studies.