TABLE 1

Demographics and CYP3A4/5 activity of individual human liver samples

Smoking and alcohol use data were obtained from families of the donors. Recent smoking activity is defined as regular use in the 5 years before death. Liver microsomes were prepared and P450 enzyme activity rates were determined as described under Materials and Methods.


Liver Sample No.

Age

Gender

Ethnicity

Recent Smoker?

Alcohol Use?

CYP3A4/5 Activity
yr pmol/mg protein/min
1 <1 M C N N 448
2 <1 M H N N 207
3 4 F C N N 9890
4 9 M C N N 2900
5 17 M C Y Y 3620
6 24 M C N Y 5580
7 36 F C Y N 3940
8 42 M C Y Y 268
9 42 M C N Y 772
10 43 M C N Y 1960
11 49 M C N Y 4410
12 49 F C Y N 16,900
13 52 M C N N 1640
14 54 F C N.D. N.D. 1425
15 56 F C Y N 20,300
16 59 M H Y Y 16,400
17 61 F C Y N.D. 765
18 65 M AA N Y 9100
19 66 M C N Y 888
20
66
M
C
Y
Y
201
  • C, Caucasian; H, Hispanic; AA, African American; N.D., not determined.