이유된 Sprague Dawley종 숫쥐를 식이 지방의 종류에 따라 쇠기름군과 콩기름군으로 나누고, 식이지방은 실험식이의 15% 수준으로 하여 8주 동안 사육하였으며 9주째 체중 kg당 25mg과 100mg의 2-AAF를 각각 3일간 연속 복강주사로 투여하고 다음날 희생시켰다. 간 microsome으로부터 cytochrome P-450, cytochrome bs 함량, NADPH-cytochrome P-450 reductase 활성도, lipid peroxide 함량을 측정 비교하였다. 25mg AAF를 투여했을 때 cytochrome P-450 lipid peroxide 함량은 콩기름군이 쇠기름군보다 유의적 (p<0.05)으로 높았고, 100mg AAF를 투여 했을 때는 cytochrome P-450 함량은 감소했지만 cytochrome $b_5$ 함량은 증가하였다. NADPH-cytochrome P-450 reductase 활성도는 식이지방의 종류에 따라서는 차이가 없었으나 두 식이군 모두 2-AAF 투여량이 증가함에 따라 상승되었다. 이 결과로부터 식이지방의 불포화도가 높을수록 cytochrome P-450의 유도도 뿐아니라 100mg 2-AAF에 의한 손상도 촉진되는 것으로 보여지며, 지질과산화물과는 크게 연관성을 나타내지 않았다.
Weanling Sprague Dawley male rats were fed the diet containing 15% beef tallow and soybean oil for 8 weeks. At 9th week, 2-AAF was injected everyday for 3 days by intraperitoneally at the levels of 25 mg and 100 mg/㎏ body weight and sacrificed next day. Cytochrome P-450 and cytochrome $b_5$ contents, NADPH-cytochrome P-450 reductase activity, lipid peroxide values were determined from isolated microsome. Cytochrome P-450 contents and lipid peroxide values were significantly higher in soybean oil group than beef tallow group by 25 mg 2-AAF injection, and cytochrome P-450 contents decreased but cytochrome $b_5$ contents increased in soybean oil group by 100 mg 2-AAF injection. NADPH-cytochrome P-450 reductase activities were not significantly different between dietary groups, but were elevated by 2-AAF injection and positively correlated to the levels of 2-AAF in each dietary group. These results suggest that soybean oil is more susceptible to the damage as well as induction of cytochrome P-450 by 2-AAF, and that lipid peroxide is not positively correlated to the cytochrome P-450 contents.
