Summary
Application of exogenous ATP or of noradrenaline (NA) produced responses in bisected rat vas deferens which mimicked the biphasic responses to nerve stimulation, and these actions were modified by nifedipine and verapamil in a manner similar to the modification of the 2 phases of the responses of the vas to nerve stimulation. It is proposed that sufficient evidence now exists to support the hypothesis that in this tissue, ATP is released along with NA from the motor nerves and that ATP may indeed be a co-transmitter.
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French, A.M., Scott, N.C. Evidence to support the hypothesis that ATP is a co-transmitter in rat vas deferens. Experientia 39, 264–266 (1983). https://doi.org/10.1007/BF01955295
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DOI: https://doi.org/10.1007/BF01955295