PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22841658-8 2012 Thus, intrathecal (C(1)-C(3)) dihydroergotamine seems to inhibit the external carotid vasodilatation to capsaicin by spinal activation of serotonin 5-HT(1B/1D) (probably 5-HT(1B)) receptors and alpha(2) (probably alpha(2A/2C))-adrenoceptors. Capsaicin 104-113 5-hydroxytryptamine receptor 1B Canis lupus familiaris 148-155