PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1372072-6 1992 We measured the level of the rat cortical m1 mRNA after 1 week of chronic receptor blockade with atropine, showing upregulation of 154% by the GAPDH/m1 ratio method and 145% by the spiking method. Atropine 97-105 glyceraldehyde-3-phosphate dehydrogenase Rattus norvegicus 143-148