Effect of orally administered plant lectins on intestinal liquor accumulation and amylase activity in rats

Baintner, K and Kiss, P and Bardocz, S and Pusztai, A (2004) Effect of orally administered plant lectins on intestinal liquor accumulation and amylase activity in rats. Acta Physiologica Hungarica, 91 (1). pp. 73-81. ISSN 0231-424X

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Abstract

Short-term effects of orally administered plant lectins, with special reference to the Phaseolus vulgaris agglutinin (phytohaemagglutinin, PHA), were studied in growing rats.  The orally administered PHA elicited a dose-dependent accumulation of liquor with elevated pH in the proximal small intestine. Although the concentration of a-amylase activity did not change, total a-amylase activity slightly, but significantly increased in the gut. When a panel of plant lectins with different carbohydrate binding specificities was tested at the dose of 100 mg/kg body weight, most of them stimulated the secretion of liquor, but the total a-amylase activity was increased only by PHA, ConA or WGA.

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