Figure 1. The effects of NAC supplementation on D. melanogaster (A, B), D. virilis (C, D), D. kikkawai (E, F) median (A, C, E) and maximum (B, D, F) lifespan. dМ, dMax – the differences between median and maximum lifespan of control and experimental flies, respectively. *р<0.05, **р<0.01, ***p <0.001, log-rank test for median lifespan or Wang-Allison test for maximum lifespan.