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. Author manuscript; available in PMC: 2009 Dec 8.
Published in final edited form as: Tetrahedron Lett. 2008 Dec 8;49(50):7178–7179. doi: 10.1016/j.tetlet.2008.09.169

Figure 1.

Figure 1

Induction of quinone reductase (NQO1) by Korean red ginseng extract, protopanaxatriol and panaxytriol. NQO1 inducer activity was assayed as described in the text, and reported here as treated/control at different concentrations of ginseng extract or component per well. Significant cytotoxicity was observed for panaxytriol above 0.5 μg/well and protopanaxadiol above 5 μg/well. (+) Panaxytriol (molecular weight 267), (▵) Protopanaxatriol (molecular weight 461), (○) Korean red Sun ginseng extract.