Table 2 Expression of CYP2B1/2 mRNA in all studied age-groups with statistical analysis

2 Weeks

0.04 ± 0.01

0.86 ± 0.09

2 Months

0.45 ± 0.15

1.07 ± 0.05

4 Months

0.37 ± 0.002

1.05 ± 0.01

20 Months

0.49 ± 0.02

1.32 ± 0.17

28 Months

0.77 ± 0.08

0.87 ± 0.004

Comparison between age-groups (P-value)

2 Weeks versus 2 months

P < 0.05

ns

2 Weeks versus 4 months

P < 0.001

ns

2 Weeks versus 20 months

P < 0.001

P < 0.05

2 Weeks versus 28 months

P < 0.01

ns

2 Months versus 4 months

P < 0.01

ns

2 Months versus 20 months

ns

ns

2 Months versus 28 months

P < 0.05

P < 0.05

4 Months versus 20 months

ns

ns

4 Months versus 28 months

P < 0.05

P < 0.01

20 Months versus 28 months

ns

P < 0.05