PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11990076-2 2001 The obtained results indicate that SA4503, a selective sigma1 receptor agonist, given repeatedly (but not acutely) enhanced the effects of phenylephrine, alpha1-adrenoceptor agonist, and clonidine (stimulating the postsynaptic alpha1-adrenoceptors at high dose) in behavioral models (hyperexploratory activity in rats and aggressiveness in mice, respectively). Clonidine 187-196 sigma non-opioid intracellular receptor 1 Rattus norvegicus 55-70