The effect of piceatannol on the activity of GAPDH, measured during 2 hours of incubation of GAPDH (2 μM) with piceatannol at concentrations 0, 3.2, 16, 32 and 64 μM (continuous lines).

Similarly, the effect of piceatannol at the concentration 64 μM on the activity of LDH was determined (black dashed line). Catalytic activity of enzymes are expressed as percentages referring to the activity of untreated samples (control). Data are means ± SD of n = 4–8 independent measurements.