期刊
BRITISH JOURNAL OF NUTRITION
卷 102, 期 4, 页码 506-508出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0007114509276446
关键词
Nutrigenomics; Crohn's disease; Organic cation transporter 1; Single nucleotide polymorphisms; Mushrooms
资金
- Foundation for Research Science and Technology [C02X0403]
- Canterbury Medical Research Foundation
- Canterbury Liver and Digestive Diseases Trust
- Christchurch Gastroenterology Research Trust
- Multi-Region Ethics Committee
- Ministry of Health, New Zealand [MEC/04/12/011]
Carrying a functional sing-le nucleotide polymorphism (L503F. c. 1672 C > T) in the gene for the Na-dependent organic cation transporter (OCTN1), increases the risk of Crohn's disease (CD) in some, but not all, populations. Case-control data on New Zealand Caucasians show no differences for CD risk between individuals carrying the L503F OCTN1 C-allele when compared with those carrying the variant T-allele. However, more of the New Zealand CD cases report intolerance to maize and mushrooms than those who report beneficial effects or no differences. The OCTN1 gene encodes a transporter for ergothionine, a fungal metabolite at high levels in mushrooms but not widely common in other dietary items. An inability to tolerate mushrooms showed statistically significant associations with the variant OCTN1 genotype. That is, among those individuals reporting adverse effects from mushrooms, there was a higher frequency of the variant T-allele when compared with the general population, or with CD patients overall. We believe that this is a novel gene-diet association, suggesting that individuals carrying the OCTN1 variant single nucleotide polymorphism may have an enhanced risk of adverse symptoms associated with consuming mushrooms. Nutrigenomic approaches to dietary recommendations may be appropriate in this group.
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