Notice of RetractionThe Oat beta-Glucan Affects Mice Intestinal Morphology Similarly to Other Oat Products

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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Diets that are high in dietary fiber are reported to have substantial health benefits. We sought to compare the metabolic effects of 4 types of oat products - oat β-glucan, oat bran, oat flour and oatmeal - on body weight, peristalsis of gastrointestinal and intestinal morphology in normal mouse model. Fifty male mice (Kong Ming) were randomly divided into 5 groups that consumed normal diet alone or normal diet containing 5% oat β-glucan, oat bran, oat flour and oatmeal, respectively. After baseline measurement was assessed for body weight, animals were treated for 4 weeks. Weight gain and food intake were measured everyday. Gastric emptying, gastrointestinal transit and intestinal morphology were evaluated at the end of study. Whereas there was no difference at the baseline, body weight gains in the oat β-glucan and oatmeal groups were significantly lower than in the control group at the end of study. No difference in the food efficiency was observed among the oat flour, oatmeal and the control groups´ animals. In addition, food intake test were also significantly lower in the oat β-glucan and oatmeal groups than in the control. Moreover, the jejunal villi in mice fed different oat products were predominantly tonguelike and fingerlike in appearance compared to those of mice fed the control diet. These results suggest that addition of oat diets result in improvements on cholesterol and lipid metabolism in mice through some changes in intestinal morphology.