However, the treatment of PD flies with resveratrol improved AChE activity compared with untreated PD flies (approx. 2.1, 2.4 and 2.5 folds for 15, 30 and 60 mg/kg diet of resveratrol, respectively p < 0.05), but not up to the level of the control flies (Fig. 1C). Here, ACHE is linked to Parkinson disease.