TABLE 6.
Mouse group | PK value by sample type |
PK ratiosb |
||||||||
---|---|---|---|---|---|---|---|---|---|---|
Plasma |
Lung |
ELF |
Lung/plasma |
ELF/plasma |
||||||
fCmax (ng/mL) | fAUC (h·ng/mL) | fCmax (ng/mL) | fAUC (h·ng/mL) | Cmax (ng/mL) | AUC (h·ng/mL) | C max | AUC | C max | AUC | |
Non-infected | 0.70 | 2.20 | 0.65 | 2.44 | 537 | 1,910 | 0.93 | 1.11 | 767 | 868 |
Infected | 0.29 | 2.72 | 0.94 | 10.62 | 981 | 2,587 | 3.24 | 3.90 | 3,383 | 951 |
The Cmax and AUC of plasma and lung homogenates were corrected for the free fraction according to the results of the protein binding experiment (0.03% for plasma and 0.26% for lung; see Table 4) to obtain the Cmax and AUC of unbound IVA (fCmax and fAUC). Data are the geometric means of values from 3 to 4 mice.
Lung/plasma values are the ratio of lung free maximum concentration or lung exposure to free maximum concentration divided by those in plasma, and ELF/plasma values are the ratio of ELF maximum concentration or ELF exposure to maximum concentration divided by plasma free maximum concentration or plasma exposure to free maximum concentration. fCmax and fAUC refer to unbound IVA in the plasma and lung.