Figure 1.

Effects of vehicle (A; Group 1, n=6) and GABA (B; Group 2, n=5) on the renal nerve stimulation (RNS)-induced changes in perfusion pressure (PP) and noradrenaline efflux (NA Efflux) in the isolated pump-perfused rat kidney. Δ, changes from basal values in response to RNS. Vehicle (Tyrode's solution) and GABA (3, 10 and 100 μM) were infused into the perfusate at 0.05 ml min⁻¹. ^*P<0.05, ^**P< 0.01 compared with each control value.