Diosgenin, a steroid saponin of Trigonella foenum graecum (fenugreek), inhibits azoxymethane-induced aberrant crypt foci formation in f344 rats and induces apoptosis in ht-29 human colon cancer cells. - Raju,J.; Patlolla,J.M.R.; Swamy,M.V.; Rao,C.V. (Cancer Epidemiol Biomarkers Prev, 2004)