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  • Title: Effect of pectin, a soluble dietary fiber, on functional and morphological parameters of the small intestine in rats.
    Author: Chun W, Bamba T, Hosoda S.
    Journal: Digestion; 1989; 42(1):22-9. PubMed ID: 2545493.
    Abstract:
    We investigated the effects of pectin, a soluble dietary fiber, on functional and morphological parameters of the small intestine in rats. A control group and a pectin-fed group were given a fiber-free elemental liquid diet and an elemental liquid diet containing 2.5% (w/w) pectin, respectively, for 2 weeks. The ileal mucosal specific activities of maltase, sucrase and alkaline phosphatase increased significantly in the pectin-fed group. Maltose absorption of the ileum, studied in vitro by the method of everted sacs and disaccharide-dependent potential difference, increased significantly in the pectin-fed group. The length of the small intestine as well as the villus height and crypt depth of both the jejunum and the ileum were significantly greater in the pectin-fed group. The crypt cell production rate of the jejunum and the ileum was also significantly greater in the pectin-fed group. Plasma enteroglucagon, but not gastrin, increased significantly in the pectin-fed group. These data suggest that pectin feeding results in hyperplasia of the small-intestinal mucosa and a significant increase in the enzyme activities of the brush border membrane of the ileum.
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