Kawai K, Nakagawa M, Kawai K, Miyakoshi T, Miyashita K, Asami T
Kawai Medical Laboratory for Cutaneous Health, Japan.
Contact Dermatitis. 1992 Oct;27(4):244-9. doi: 10.1111/j.1600-0536.1992.tb03254.x.
Japanese lacquer is made from the sap of the Japanese lacquer tree (Toxicodendron vernicifluum), a member of the Anacardiacae plant family. Objects painted with this material are described collectively as lacquerware. Both fresh lacquer and lacquerware may evoke allergic contact reactions ascribable to the urushiols contained therein. In this study, we have examined the effects of heating on the ability of lacquerware to elicit an allergic contact reaction. Lacquer films prepared with and without heat treatment were tested on urushiol-sensitive subjects. Patch test reactions were strongest to untreated film and decreased with increasing level of heat treatment. Assays for free urushiol in the lacquer films demonstrated that free urushiol content decreased with increasing heat treatment and that urushiols with saturated and monounsaturated alk(en)yl chains predominated.
日本漆由漆树（漆树科漆属植物漆树）的汁液制成。用这种材料绘制的物品统称为漆器。新鲜的漆和漆器都可能引发归因于其中所含漆酚的过敏性接触反应。在本研究中，我们研究了加热对漆器引发过敏性接触反应能力的影响。对经过和未经过热处理的漆膜在对漆酚敏感的受试者身上进行了测试。斑贴试验反应对未处理的膜最强，并随着热处理程度的增加而降低。对漆膜中游离漆酚的测定表明，游离漆酚含量随着热处理程度的增加而降低，并且以饱和和单不饱和烷（烯）基链的漆酚为主。
