PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 177981-4 1976 Similarly, after the administration of phenobarbital, there was first an increase in the cAMP concentration and in the activity of cAMP-dependent protein kinase, then the induction of ornithine decarboxylase, and finally, an enhanced activity of ethylmorphine N-demethylase and an increased content of cytochrome P-450. Phenobarbital 39-52 ornithine decarboxylase 1 Rattus norvegicus 184-207