TABLE 1

Binding (S.D.) of spiked BUD to rat plasma and tissues




Brain

Kidney

Liver

Lung

Plasma
% bound % bound % bound % bound % bound
In vitro
    BUD (8 nM) 96.1 (1.2) 97.6 (1.2) 98.4 (0.4) 94.0 (1.1) 96.1 (0.7)
    BUD (800 nM) 97.0 (0.3) 98.7 (0.2) 99.1 (0.2) 96.6 (1.2) 96.6 (0.8)
    Des-CIC (8 nM) 99.5 (0.3) 99.6 (0.2) 99.6 (0.3) 98.1 (0.3) 98.4 (0.3)
    Des-CIC (800 nM) 99.2 (0.5) 99.4 (0.2) 99.5 (0.1) 98.1 (0.6) 98.8 (0.4)
Ex vitro after infusion
    BUD (see Table 2) 94.2 (1.3) 97.4 (1.1) 98.0 (0.5) 96.2 (1.0) 92.6 (1.8)
    des-CIC (see Table 2)
98.8 (0.4)
99.6 (0.3)
99.2 (0.6)
99.4 (0.2)
98.2 (1.1)