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. 1999 Feb;126(4):969–978. doi: 10.1038/sj.bjp.0702386

Figure 4.

Figure 4

Log concentration-response relaxation curves to (a) adenosine and (b) 5′-N-ethylcarboxamidoadenosine (NECA) in pig intravesical ureteral strips contracted to 10−7  M U46619, in control conditions and in the presence of the A1 and A2 adenosine receptors inhibitor, 8-phenyltheophylline (8-PT, 10−5  M). The relaxations are expressed as a percentage of the U46619-induced contraction. Results represent means and vertical line s.e.mean of 6–7 preparations.