TABLE 3

Parameter estimates from modeling the dose-receptor occupancy relationship

The tracer concentration is described as a nonlinear Emax model with a baseline. The precision of the estimates is expressed as S.E. The root-mean-square error is 0.99 nM.

ParameterEstimate
Cnonspec,lung (nM)2.2 ± 0.28
Cspec,max,lung (nM)6.4 ± 0.44
Cnonspec,spleen (nM)2.6 ± 0.30
Cspec,max,spleen (nM)9.6 ± 0.44
ED50 (nmol/kg)47 ± 8.6