Whole cell patch clamp recordings of peak current responses (in pA) to acutely applied gaboxadol (GBX, 100 nM) in cells treated for 48 h with GABA plus THP or vehicle as well as FLU for the indicated times. A, Summary data and B, representative current traces show that long-term FLU treatment (6, 24, 48 h) reduces GBX-gated current. Arrow, start of ~500 ms ligand application. (n=5 cells/group, *F(6,28)=36.7, P<0.0001, ANOVA; P<0.05 vs. 48 h GABA+THP with 48 h FLU, post-hoc Tukey’s test).