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  • Title: Gastric emptying and small intestinal transit in the piebald mouse model for Hirschsprung's disease.
    Author: Cooke HJ, Pitman K, Starr G, Wood JD.
    Journal: Gastroenterology; 1984 Aug; 87(2):357-61. PubMed ID: 6735079.
    Abstract:
    Gastric emptying and small intestinal transit were investigated in the piebald mouse model for Hirschsprung's disease. These mice exhibited aganglionosis of the terminal segment of the large intestine. This condition was accompanied by fecal stasis and megacolon. Gastric emptying of saline or milk meals was slower in the mice with aganglionic or induced megacolon than in the normal mice, but the rate of emptying was faster than after administration of morphine (10 mg/kg). In the small intestine, the distribution of the radiolabeled marker and the advancing edge of the marker profile were abnormal in the mice with megacolon. There were small differences between the megacolonic and normal mice in the distance traversed by the advancing edge of the intraluminal profile of the marker. These results are evidence for disturbances of gastric and small intestinal motor function that occur in mice secondary to development of megacolon.
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