These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Peripheral alpha 1- and alpha 2-adrenoreceptor mechanisms in blood pressure control.
    Author: Reid JL, Hamilton CA, Hannah JA.
    Journal: Chest; 1983 Feb; 83(2 Suppl):302-4. PubMed ID: 6129947.
    Abstract:
    Peripheral alpha-adrenoreceptors can be characterized as alpha 1 or alpha 2, depending on their affinity for agonists and antagonists. Alpha 2-adrenoreceptors, probably located postsynaptically on smooth muscle of resistance vessels, contribute to the pressor responses to intravenously given norepinephrine. Studies with the noncompetitive alpha-adrenoreceptor antagonist phenoxybenzamine suggest that there are important differences in the regulation of the two types of receptors. The slower recovery alpha 1-adrenoreceptor binding sites and the more rapid recovery of responses suggest the presence of "spare" alpha 1- but not alpha 2-adrenoreceptors.
    [Abstract] [Full Text] [Related] [New Search]