代谢
体外代谢十七烷使用来自 Hubbard 鸡、新西兰兔、Wistar 大鼠和虹鳟鱼的肝微粒体进行了研究。用 (14)C 标记的烷烃进行 1 小时培养显示,氧化速率在物种间有所不同;鸡的速率(每毫克蛋白)大约是鳟鱼的 20 倍,大约是大鼠和兔子的 10 倍。基于细胞色素 P-450 含量,鸡的十七烷代谢速率大约是其他物种的 20 倍。此外,在鸡体内,还原细胞色素 P-450 CO 复合物的 lambda max Soret 带出现在 452 纳米。讨论了十七烷代谢速率与活体内储存水平之间的相关性。
The in vitro metabolism of n-heptadecane was investigated using hepatic microsomes from Hubbard chickens, New Zealand rabbits, Wistar rats and rainbow trout. Incubations with the (14)C-labelled alkane for 1 hr showed that the rate of oxidation varied between species; the rate (per mg protein) in chickens was roughly 20-fold greater than the rate in trout, and roughly 10-fold greater than the rates in rats and rabbits. On the basis of cytochrome P-450 content, the rate of heptadecane metabolism was roughly 20-fold greater in the chicken than in the other species. Moreover, the lambda max Soret band of the reduced cytochrome P-450 CO-complex was observed at 452 nm in the chicken. Correlation between the rate of heptadecane metabolism and in vivo storage levels is discussed.
来源:Hazardous Substances Data Bank (HSDB)