Abstract
SummaryAn in vitro system is described and validated for studying transport of solutes and water in both uninfected and rotavirus‐infected neonatal mouse intestine. Control intestine exhibited stable water absorption for periods of up to 40 min. Water absorption was temperature‐dependent, Na‐dependent, and enhanced by glucose‐containing perfusion solutions. Theophylline induced net secretion of water by control intestinal tissue. Water transport by rotavirus‐infected lower small intestine was significantly depressed as compared to control levels, and rotavirus‐infected middle small intestine exhibited net secretion of water. Upper small intestine and colon from infected animals did not differ significantly from control tissues in their ability to transport water. Water secretion by infected middle small intestine was reversed to absorption by glucose‐containing solutions.
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