The Role of Vitamin D Level and Related Single Nucleotide Polymorphisms in Crohn’s Disease
AbstractNew Zealand has one of the highest rates of Crohn’s Disease (CD) in the world, and there is much speculation as to why this might be. A high risk of CD has been associated with deficient or insufficient levels of Vitamin D (Vit D), lifestyle as well as various genetic polymorphisms. In this study we sought to analyse the relevance of serum Vit D levels, lifestyle and genotype to CD status. Serum samples were analysed for 25-OH-Vitamin D levels. DNA was isolated from blood and cheek-swabs, and Sequenom and ImmunoChip techniques were used for genotyping. Serum Vit D levels were significantly lower in CD patients (mean = 49.5 mg/L) than those found in controls (mean = 58.9 mg/L, p = 4.74 × 10−6). A total of seven single nucleotide polymorphisms were examined for effects on serum Vit D levels, with adjustment for confounding variables. Two variants: rs731236[A] (VDR) and rs732594[A] (SCUBE3) showed a significant association with serum Vit D levels in CD patients. Four variants: rs7975232[A] (VDR), rs732594[A] (SCUBE3), and rs2980[T] and rs2981[A] (PHF-11) showed a significant association with serum Vit D levels in the control group. This study demonstrates a significant interaction between Vit D levels and CD susceptibility, as well as a significant association between Vit D levels and genotype.
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Carvalho, A.Y.O.M.; Bishop, K.S.; Han, D.Y.; Ellett, S.; Jesuthasan, A.; Lam, W.J.; Ferguson, L.R. The Role of Vitamin D Level and Related Single Nucleotide Polymorphisms in Crohn’s Disease. Nutrients 2013, 5, 3898-3909.
Carvalho AYOM, Bishop KS, Han DY, Ellett S, Jesuthasan A, Lam WJ, Ferguson LR. The Role of Vitamin D Level and Related Single Nucleotide Polymorphisms in Crohn’s Disease. Nutrients. 2013; 5(10):3898-3909.Chicago/Turabian Style
Carvalho, Andre Y.O.M.; Bishop, Karen S.; Han, Dug Y.; Ellett, Stephanie; Jesuthasan, Amalini; Lam, Wen J.; Ferguson, Lynnette R. 2013. "The Role of Vitamin D Level and Related Single Nucleotide Polymorphisms in Crohn’s Disease." Nutrients 5, no. 10: 3898-3909.