PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10094581-8 1999 When leptin (100 nM) was combined with insulin in the incubation medium, the 14CO2 production rose almost 4-fold (397%) (P < 0.05) and more than 5-fold (527%) (P < 0.05) for the 100 microU/ml and 10000 microU/ml insulin concentrations, respectively. 14co2 77-82 leptin Rattus norvegicus 5-11