Abstract
Sodium ferulate (SF) and Oxymatrine (OMT) were compounds extracted from Chinese herbs, and have been used in clinical treatment of heart and hepatic diseases, respectively, in China for many years. The objective of this study was to examine the analgesic effect and the mechanism of the combined treatment of SF and OMT. Using the animal pain models by applying Acetic Acid Writhing Test and Formalin Test, the combination of SF and OMT showed significant analgesic effect in dose-dependent manner. In vitro, the combined treatment inhibited the increase in intracellular calcium concentration evoked by capsaicin in the dorsal root ganglion neurons. Importantly, a synergistic inhibitory effect of SF and OMT on the capsaicin-induced currents was demonstrated by whole-cell patch-clamp. Our results suggest that SF and OMT cause significant analgesic effect which maybe related to the synergistic inhibition of transient receptor potential vanilloid-1.
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Acknowledgments
We thank Dr. Peter Zhang of MediAlliance Inc for his valuable comments and Prof. Zhongwei Li, Florida Atlantic University, for help in English editing and formatting of this article. This work was supported with grants and materials from Beijing SL Pharmaceutical Co., Ltd.
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Liu, H., Sun, Y., Gao, Y. et al. The Analgesic Effect and Mechanism of the Combination of Sodium ferulate and Oxymatrine. Neurochem Res 35, 1368–1375 (2010). https://doi.org/10.1007/s11064-010-0193-4
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DOI: https://doi.org/10.1007/s11064-010-0193-4