PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10103106-3 1999 Repeated cocaine administration increased levels of DeltaFosB, a Fos family transcription factor, in the striatum of wild-type mice, and this increase was abolished in DARPP-32-mutant mice. Cocaine 9-16 protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus 168-176 10103106-5 1999 These data show that DARPP-32 is involved in regulating substance P expression in the striatonigral pathway, and in biochemical and behavioural plasticity with chronic administration of cocaine. Cocaine 186-193 protein phosphatase 1, regulatory inhibitor subunit 1B Mus musculus 21-29