PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8797196-4 1996 The present report shows that N-acetylmuramyl-L-alanine-D-isoglutamine (MDP), which elevates the endogenous opiate alkaloids in various brain regions and peripheral tissues, can attenuate the withdrawal syndrome of morphine-addicted rats. Opiate Alkaloids 108-114 dipeptidase 1 Homo sapiens 72-75