It seems that dopamine effect on cardiac vessels is mixed and varies with dose? Does this variation also apply similarly to cerebral vessels? Any application of this neurotransmitter in ischemic stroke treatment?
Look into papers of PF Aubineau. see e.g. J Physiol London 246: 104P-106P 1975. Try to get thesis of L. Delepine Influence de línnervation autonome de la dure-mere du rat sur línflammation neurogene. Relation avec la maladie migraineuse. 22 dec 1997, Uni Victor Segalen Bordeaux. It shows you the interactions of autonomic neurotransmitters and cerebral blood vessels. Don't think it is French, figures are selfexplaining.