PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11409748-4 2001 We also observed that peripheral injection of naltrexone at a dose known to produce anorexigenic responses induced c-Fos immunoreactivity in significantly more arcuate nucleus alpha-MSH neurons than observed in control animals. Naltrexone 46-56 Fos proto-oncogene, AP-1 transcription factor subunit Homo sapiens 115-120