Patch-clamp recording of NE cells (AF1165). Resting membrane potential (V rest) in different culture conditions: starvation (n = 15, 31 and 7 cells per time point); with 5 mM glucose (n = 14, 30 and 6 cells per time point); with 10 mM lactate (n = 14, 29 and 7 cells per time point). Kruskal–Wallis test with Dunn’s multiple comparison test applied in e.