Bidirectional movement of solutes between the intestinal lumen and systemic circulation is restricted by tissue barriers that may be altered under conditions such as intestinal infection. In a study using an in vitro everted sac preparation to assess small intestinal permeability in a lumen-to-serosa direction, 51Cr-EDTA movement was compared regionally in the jejunum and ileum of rats infected and uninfected by tapeworms. Whereas jejunal segments showed no significant differences in permeability to 51Cr-EDTA at 6, 15, or 32 days postinfection (dpi), ileal segments displayed an increased permeability on 15 and 32 dpi, but not 6 dpi. The alterations in permeability were not reversed 1 wk after removal of the tapeworm from the intestine. In conclusion, the strictly lumen-dwelling tapeworm infection allows increased movement of molecules from the lumen into ileal, but not jejunal, tissues by 15 dpi.
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December 2001
BIOCHEMISTRY-PHYSIOLOGY|
December 01 2001
MODULATION OF CAUDAL INTESTINAL PERMEABILITY IN THE RAT DURING INFECTION BY THE TAPEWORM HYMENOLEPIS DIMINUTA
Noah P. Zimmerman;
Noah P. Zimmerman
Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, 53706
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Paul Bass;
Paul Bass
Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, 53706
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John A. Oaks
John A. Oaks
Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, Wisconsin, 53706
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J Parasitol (2001) 87 (6): 1260–1263.
Citation
Noah P. Zimmerman, Paul Bass, John A. Oaks; MODULATION OF CAUDAL INTESTINAL PERMEABILITY IN THE RAT DURING INFECTION BY THE TAPEWORM HYMENOLEPIS DIMINUTA. J Parasitol 1 December 2001; 87 (6): 1260–1263. doi: https://doi.org/10.1645/0022-3395(2001)087[1260:MOCIPI]2.0.CO;2
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