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  • Title: Effect of papaverine on cyclic nucleotide levels in the isolated rat aorta.
    Author: Demesy-Waeldele F, Stoclet JC.
    Journal: Eur J Pharmacol; 1977 Nov 01; 46(1):63-6. PubMed ID: 200442.
    Abstract:
    An increase in cAMP but no significant modification in cGMP content could be demonstrated in rat aorta strips after applying papaverine in concentrations which reduced contractile responses. Accumulation of cAMP was induced in noradrenaline-stimulated on K+-depolarized strips, under omission of external Ca2+. Thus the elevation of cAMP level preceded the reduction of contraction subsequently elicited by readdition of Ca2+. The effects could not be dissociated under the experimental conditions used here.
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