PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 191391-5 1977 Fc receptor activity on the macrophage was reduced by 20-30 per cent following incubation with aminophylline, (10(-3)M) from 0-6 h. There was no direct correlation between Fc-receptor activity and cyclic AMP levels in the cells studied. Aminophylline 95-108 Fc receptor Mus musculus 0-11