Chemopreventive effects of curcumin analogs. Kaplan–Meier analysis of Apc580D/+ mice fed the curcumin analog. Green line shows the basal diet (HFD32); magenta line, curcumin (Cur); blue line, GO‐Y030 [(1E, 4E)‐1,5‐bis‐(3,5(‐bismethoxymethoxyphenyl)penta‐1,4‐dien‐3‐one]. P‐value between GO‐Y030 and curcumin is 0.048 (HR = 0.39, 95% confidence interval, 0.14–2.18).