The effects of an additive small amount of a low residual diet against total parenteral nutrition-induced gut mucosal barrier |
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Authors: | Ohta Kouji Omura Kenji Hirano Kathuyasu Kanehira Eiji Ishikawa Nobuki Kato Yosuke Kawakami Kazuyuki Watanabe Go |
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Affiliation: | Department of Surgery, Kanazawa University Faculty of Medicine School of Medicine, Japan. kouji0470326@yahoo.co.jp |
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Abstract: | BACKGROUND: Total parenteral nutrition (TPN) negatively influences the gut mucosal barrier. It has been suggested that enteral nutrition is effective against the harmful influence. METHODS: Forty-eight male Donryu rats underwent placement of a central venous catheter and tube gastrostomy. They were divided into six groups, receiving isocaloric nutrients in various proportions of PN and a low residual diet (LRD) for 7 days. RESULTS: Intestinal permeability, villous height and crypt depth, and number of secretory IgA-positive cells in the villus were measured.Intestinal permeability was significantly reduced in rats receiving an LRD corresponding to more than 15% of total caloric intake. Gut morphological structure was maintained in rats receiving an LRD corresponding to more than 10%. A higher number of IgA-positive cells was observed in rats receiving an LRD corresponding to more than 15%. CONCLUSIONS: A small amount of LRD could prevent decreases in gut mucosal integrity. There was a stepwise defense mechanism in the gut mucosal barrier. |
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Keywords: | Total parenteral nutrition Gut barrier Low residual diet Stepwise defense mechanism |
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