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Published on: July 31, 2019
Fructooligosaccharide intake promotes epigenetic changes in the intestinal mucosa in growing and ageing rats
Glaucia Carielo Lima1, Vivian Cristine Correa Vieira1, Cinthia Baú Betim Cazarin1
1School of Food Engineering, University of Campinas, Campinas, São Paulo, Brazil.
Purpose:
The aim of this study was to investigate the relationship between fructooligosaccharide (FOS) intake at different life stages of Wistar rats and its stimulatory effects on intestinal parameters.
Methods:
Recently weaned and ageing female rats were divided into growing and ageing treatments, which were fed diets that partially replaced sucrose with FOS for 12 weeks.
Results:
Dietary FOS intake induced a significant increase in the numbers of Bifidobacterium and Lactobacillus in growing rats. FOS intake was associated with increased butyric acid levels and a reduced pH of the caecal contents at both ages. Differential gene expression patterns were observed by microarray analysis of growing and ageing animals fed the FOS diet. A total of 133 genes showed detectable changes in expression in the growing rats, while there were only 19 gene expression changes in ageing rats fed with FOS.
Conclusion:
These results suggest that dietary FOS intake may be beneficial for some parameters of intestinal health in growing rats.
