Comparative Relaxant Effects of the NO Donors Sodium Nitroprusside, DEA/NO and SPER/NO in Rabbit Carotid Arteries

1. Sodium nitroprusside (SNP, 10 −9–3×10 −4 M), diethylamine/NO complex (DEA/NO, 10 −9–10 −4 M) and spermine/NO complex (SPER/NO, 10 −8–3×10 −4 M) induced concentration-dependent relaxation of isolated rabbit carotid arteries precontracted with KCl (50 mM) or with histamine (3×10 −6 M). 2. In KCl-pr...

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