Distribution and Fate of Diethyl Malonate and Diisopropyl Fluorophosphate on Pig Skin In Vitro
作者:Eric M. Chellquist、William G. Reifenrath
DOI:10.1002/jps.2600771008
日期:1988.10
The in vitro distribution and fate of [14C]diethyl malonate and [14C]diisopropyl fluorophosphate were evaluated on normal and heat-treated pig skin. The extent of hydrolysis from the skin surface, skin, and receptor fluid was determined. A significant skin-mediated hydrolysis (15-35% of applied dose) was observed for diethyl malonate in normal skin, but not in heat-treated skin. These results indicated
在正常和经热处理的猪皮上评估了[14C]丙二酸二乙酯和[14C]二异丙基氟磷酸盐的体外分布和命运。确定了从皮肤表面,皮肤和受体液中水解的程度。在正常皮肤中发现丙二酸二乙酯有明显的皮肤介导的水解作用(占施用剂量的15%至35%),但在热处理过的皮肤中则没有。这些结果表明,在对正常皮肤局部施用后,热不稳定的过程(例如,酶促水解)部分导致丙二酸二乙酯的降解。热处理使氟代磷酸二异丙酯的皮肤渗透能力增加了两倍,并减少了水解产物二异丙基磷酸的回收量。酶促和自发的水解以及杂质导致了降解产物的存在。