Wilforgine is a bioactive sesquiterpene alkaloid in Tripterygium wilfordii Hook. F. Wilforgine can induce microstructural and ultrastructural changes in the muscles of Mythimna separata larvae, and the sites of action are proposed to be calcium receptors or channels in the muscular system[1][2].
[1]. Ouyang XK, et al. Simultaneous determination of four sesquiterpene alkaloids in Tripterygium wilfordii Hook. F. extracts by high-performance liquid chromatography. Phytochem Anal. 2007 Jul-Aug;18(4):320-5. [2]. Ma S, et al. Comparative studies on muscle microstructure and ultrastructure of Mythimna separata Walker treated with wilforgine and chlorantraniliprole. Ecotoxicol Environ Saf. 2018 Jan;147:1023-1034. [3]. Gao X, et al. Wilforine, the Q-marker and PK-maker of Tripterygium glycosides tablet: Based on preparation quantitative analysis and PK-PD study. Phytomedicine. 2019 Feb 15;54:357-364.