408573.fig.004a
(a) CBR1 
408573.fig.004b
(b) GST
Figure 4: Interindividual differences in specific activities of GST and CBR1 in rat liver. The white columns represent 6-week-old rats (J1–J6), and hatched columns indicate 21-month-old rats (S1–S6). Values are expressed as mean ± SD (six animals per age group). GST = glutathione S-transferase; CBR1 = carbonyl reductase 1.