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Response of mesenteric branch arteries of wild-type C57BL/6 mice to the cumulative addition of extracellular Ca2+ after precontraction with 5 μmol/L NE or 100 mmol/L K+ (A) or after precontraction with 5 μmol/L NE and pretreatment with 10 mmol/L TEA or a mixture of 10 mmol/L TEA and 0.3 mmol/L NG-nitro-l-arginine methyl ester (L-NAME, B). Values are mean±SEM, *P<0.05 vs NE control, n=3 to 5 per group.
