Abstract

Ginsenosides isolated from ginseng are biologically active components. In this study, whole-cell and inside-out configurations of patch clamp technique had been used to test the effect of ginsenosides on the capsaicin-activated channels in cultured small diameter sensory neurons of young rat. Ginsenosides (100 μg/ml) decreased the amplitude of capsaicin-activated currents by 78.2% in whole cell mode. Similarly, ginsenosides decreased capsaicin-activated single-channel activities in a dose-dependent manner in inside-out patches. These results indicate that ginsenosides might directly block capsaicin-activated channels, resulting in attenuation of the currents in rat sensory neurons.

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