A, average flow‐induced dilatations of pre‐constricted subcutaneous vessels harvested from human lower abdominal adipose tissue with and without 20 nm apamin (AP), 300 μm Ba2+, or both, as a function of pressure gradient. Vessel diameters are normalized to diameters stabilized at 60 cmH2O. Intralumenal pressure is maintained as 60 cmH2O. Apamin and Ba2+ perfused extravascularly and maintained during the experiments. Papaverine (100 μm) is added at Δ100 cmH2O at the end of the experiment to verify the maximal dilatation of arteries (n = 9 vessels per condition, *
P < 0.05). B, maximal dilatation at Δ100 cmH2O pressure gradient for the same experimental conditions.