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(a) Dose-dependent relaxation caused by CAP-NO in rabbit aortic rings precontracted with phenylephine. The lower panels (b) and (c): reversal of CAP-NO-induced (100 nM) relaxation of rabbit aortic rings by Hb (10 μM) and ODQ (10 μM). The y-axis represents the vascular tension in gram. Results are presented as the mean ± SD. (n = 4).
