Rats fed on diets containing kidney bean showed increased intestinal permeability to intravenously injected 125I-labelled rat serum proteins after an intragastric challenge with bean proteins. The enhanced accumulation of radioactive serum proteins in the lumen and walls of the small intestine indicated increased vascular permeability. It is suggested that dietary lectins may, at least in part, be responsible for this loss of serum proteins and thus contribute towards the overall toxicity of kidney bean proteins.

Keywords:
Kidney bean, Phaseolus vulgaris, Lectins, Small intestinal permeability, Mast cells, Serum protein loss
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© 1985 S. Karger AG, Basel
1985
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