PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21125398-12 2011 CONCLUSION: Nicotine-induced attenuation of CPA precipitated by naloxone is mediated by the alpha7 nAChR subtype, and the CeA is one of the regions of the brain involved in the effect of nicotine on acutely opiate-dependent subjects. Nicotine 12-20 cholinergic receptor nicotinic alpha 2 subunit Rattus norvegicus 99-104