Age-related changes in the mRNA levels of CYP1A1, CYP2B1/2 and CYP3A1 isoforms in rat small intestine

Table 5 Activity of NADH-cytochrome b₅ reductase with statistical analysis

Age	2 Weeks	2 Months	4 Months	20 Months	28 Months
C	0.004 ± 0.002	0.012 ± 0.001	0.006 ± 0.001	0.008 ± 0.002	0.02 ± 0.002
PB	0.004 ± 0.001	0.013 ± 0.001	0.008 ± 0.001	0.015 ± 0.005	0.033 ± 0.003
BNF	0.003 ± 0.002	0.012 ± 0.001	0.006 ± 0.003	0.014 ± 0.002	0.022 ± 0.004
DEX	0.006 ± 0.001	0.01 ± 0.001	0.008 ± 0.001	0.015 ± 0.004	0.026 ± 0.004

	Control	PB	BNF	DEX
Comparison between age-groups (P-value)
2 Weeks versus 2 months	P < 0.05	P < 0.001	ns	P < 0.05
2 Weeks versus 4 months	ns	P < 0.05	ns	ns
2 Weeks versus 20 months	ns	ns	ns	P < 0.05
2 Weeks versus 28 months	P < 0.001	P < 0.05	ns	P < 0.01
2 Months versus 4 months	P < 0.01	P < 0.05	ns	P < 0.05
2 Months versus 20 months	P < 0.05	ns	ns	ns
2 Months versus 28 months	P < 0.05	ns	P < 0.05	P < 0.05
4 Months versus 20 months	ns	ns	P < 0.05	ns
4 Months versus 28 months	P < 0.01	P < 0.05	P < 0.01	P < 0.05
20 Months versus 28 months	P < 0.01	P < 0.05	P < 0.05	P < 0.05

ISSN: 1865-3499