Potencies and maximal efficacies of GHS-R1a ligands
EC50 and Emax values were determined from dose-response curves performed in HEK293T cells expressing GHS-R1a as described under “Experimental Procedures.” For the agonist and neutral compounds, Emax is expressed as the percentage of maximal ghrelin. For the inverse agonists compounds, Emax is expressed as the maximal basal inhibition (100% inhibition corresponding to the basal of mock-transfected HEK293T cells). Values are mean ± S.E. of three independent experiments performed in triplicate. ND, not determined; NC, cannot be determined.