PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15608085-11 2005 In mesenteric arteries, constriction to phenylpropanolamine was not affected by the selective alpha2-adrenergic antagonist, rauwolscine (10(-7) M) but was abolished by the selective alpha1-adrenergic antagonist, prazosin (3 x 10(-7) M). Phenylpropanolamine 40-59 adrenoceptor alpha 1D Homo sapiens 182-188 15608085-14 2005 At low concentrations, it constricts blood vessels that express functional alpha2-adrenoceptors, whereas at much higher concentrations, phenylpropanolamine also activates vascular alpha1-adrenoceptors. Phenylpropanolamine 136-155 adrenoceptor alpha 1D Homo sapiens 180-186 1894758-8 1991 The study supports the idea that phenylpropanolamine as both a direct (at alpha -1 and alpha-2 receptors) and an indirect sympathomimetic agent. Phenylpropanolamine 33-52 adrenoceptor alpha 1D Homo sapiens 74-82