代谢
在大鼠和小鼠的胃中形成亚硝基二甲胺(NDMA),通过同时口服给予(14)C标记的二甲胺和亚硝酸钠后,通过测量肝脏DNA的甲基化程度来确定。同时给予50毫克/公斤抗坏血酸可以抑制硝化作用约80%。50毫克/公斤α-生育酚醋酸可以减少硝化作用约50%。
Formation of n-nitrosodimethylamine (NDMA) in the stomachs of rats and mice after simultaneous oral administration of (14)C-labeled dimethylamine and potassium nitrite was determined by measuring the methylation of liver DNA. Simultaneous administration of 50 mg ascorbate/kg inhibited the nitrosation by approximately 80%. 50 mg alpha-tocopherol acetate/kg reduced the nitrosation by approximately 50%.
来源:Hazardous Substances Data Bank (HSDB)