PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16687214-3 2006 We found that repeated administration of morphine significantly elevated aAbs levels to MDOR and to the AMPA GluR1 subunit, but not to the NMDA NR2 subunit. Morphine 41-49 glutamate ionotropic receptor AMPA type subunit 1 Rattus norvegicus 109-114