Pachyrhizus erosus is a vine from the Fabaceae or legume family. The plant is native to Mexico. Common names for the plant include jicama, Mexican yam bean or Mexican turnip. The root of the plant is edible and the seeds (legumes) can also be consumed. The central nervous system effects of Pachyrhizus erosus has been investigated in mice. For example, in one study researchers administered extracts of the seeds of Pachyrhizus erosus to mice and then exposed the mice to a number of experimental protocols to assess central nervous system effects of the extracts. The results of the study showed that the extracts of Pachyrhizus erosus had significant anxiolytic and myorelaxant effects. In addition the extracts also significantly decreased locomotor activity and caused a reduction in aggressive effects. Therefore the extracts of Pachyrhizus erosus had significant central nervous system effect that may explain the use of the plant as a spasmolytic agent in traditional medicine.
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