Figure 3. EGCG and ECG induce a drop in cellular ATP levels and require AMPK/SIRT1 signaling to extend lifespan. 14CO2 production of N2 wild-type nematodes after treatment with 0.1% DMSO, 2.5 μM EGCG or 2.5 μM ECG for the indicated time. (A) ATP content for various incubation periods of N2 wild-type nematodes with 0.1% DMSO or 2.5 μM EGCG. (B) ATP content for different incubation periods of N2 wild-type nematodes with 0.1% DMSO or 2.5 μM EGCG. (C) The representative outcome of lifespan assay of aak-2 mutants treated with 0.1% DMSO versus 2.5 μM EGCG (D) or 2.5 μM ECG. (E) The representative outcome of lifespan assay of sir-2.1 mutants treated with 0.1% DMSO versus 2.5 μM EGCG (F) or 2.5 μM ECG. (G) P-values are as indicated in the graphs. See