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GrainGenes Reference Report: PNA-103-3546

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Reference
PNA-103-3546
Title
High-amylose wheat generated by RNA interference improves indices of large-bowel health in rats.
Journal
Proceedings of the National Academy of Sciences, USA
Year
2006
Volume
103
Pages
3546-3551
Author
[ Hide all but 1 of 10 ]
Regina A
Bird A
Topping D
Bowden S
Freeman J
Barsby T
Kosar-Hashemi B
Li ZY
Rahman S
Morell M
Abstract
Foods high in resistant starch have the potential to improve human health and lower the risk of serious noninfectious diseases. RNA interference was used to down-regulate the two different isoforms of starch-branching enzyme (SBE) II (SBEIIa and SBEIIb) in wheat endosperm to raise its amylose content. Suppression of SBEIIb expression alone had no effect on amylose content; however, suppression of both SBEIIa and SBEIIb expression resulted in starch containing >70% amylose. When the >70% amylose wheat grain was fed to rats in a diet as a wholemeal, several indices of large-bowel function, including short-chain fatty acids, were improved relative to standard wholemeal wheat. These results indicate that this high-amylose wheat has a significant potential to improve human health through its resistant starch content.
External Databases
https://doi.org/10.1073/pnas.0510737103
Gene Class
Amylose (resistant starch) content
High amylose
Gene Set
SbeII

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