TABLE 1

Ro 64-0802 formation rate from oseltamivir in plasma and liver S9 from newborn and adult rats

Oseltamivir (1.5 μM) was incubated with rat plasma for 5 min and rat liver S9 fraction for 60 min at 37°C.


Source



Ro 64-0802 Formation Ratea
pmol/min/mg protein pmol/min/ml or g liver b nmol/min/kg b.wt. c
Plasma P11 1.75 ± 0.32 87.7 ± 15.9 3.38 ± 0.61
P42 10.6 ± 2.6 529 ± 129 20.4 ± 5.0*
Liver S9 P11 0.11 ± 0.00 10.6 ± 0.3 0.42 ± 0.01

P42
0.31 ± 0.05
29.7 ± 4.5
1.19 ± 0.18#
  • * P < 0.05 statistical differences in Ro 64-0802 formation rate (nmol/min/kg) in plasma between newborn and adult rats.

  • # P < 0.05 statistical differences in Ro 64-0802 formation rate (nmol/min/kg) in liver S9 between newborn and adult rats.

  • a Data represent means ± S.E. of three determinations using three plasma and liver S9 prepared independently from three rats.

  • b Obtained by multiplying the value (pmol/min/mg protein) by 50.0 and 96.1 for plasma and liver S9, respectively.

  • c Obtained by multiplying the value (pmol/min/ml plasma or g liver) by 38.5 and 40.0 for plasma and liver S9, respectively.