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Changes in isometric force of carotid rings (means ±s.e.m., percentage of maximal KCl contraction) after des-Arg9-bradykinin (DBK; 10−8 to 10−5m), and [Leu8]-des-Arg9 bradykinin (LBK; 10−5m) in the sham (n = 6) and ischaemia-reperfusion (n = 7) groups. *P < 0.05 vs. sham group, †P < 0.05 vs. control tension. ‡P < 0.05 vs. corresponding value. Comparison between intact (circles) and de-endothelialised (triangles) rings.
