Many human conditions, often skin conditions, are treated topically or orally with a retinoid such as retinoic acid or acetretin, which treatment often has the side effect of dry, irritated, and/or peeling skin. The use of soaps, detergents, chemical irritants, and such can also cause these same side effects. These side effects can be reduced or eliminated by the topical administration of an inhibitor, especially a natural inhibitor, of the epidermal growth factor receptor (EGFR), administered concomitantly with the retinoid, separately from the retinoid (such as on an as needed basis), or both. Administration of the two together is facilitated by a composition suitable for topical application and comprising both the retinoid and a natural EGFR inhibitor. Preferred natural inhibitors are genistein and other isoflavones extracted from natural occurring substances, or simple derivatives of such substances.
人类的许多疾病,通常是皮肤病,都是通过局部或口服
维甲酸(如
维甲酸或乙酰
维甲酸)来治疗的,这种治疗通常会产生皮肤干燥、刺激和/或脱皮的副作用。使用肥皂、清洁剂、
化学刺激物等也会产生同样的副作用。通过局部使用
表皮生长因子受体(
EGFR)的
抑制剂,特别是天然
抑制剂,可以减少或消除这些副作用,这些
抑制剂可以与
维甲酸同时使用,也可以与
维甲酸分开使用(如按需使用),或两者同时使用。适用于局部应用的组合物既包括
维甲酸,也包括天然
表皮生长因子受体
抑制剂,有助于将两者同时施用。首选的天然
抑制剂是从天然物质中提取的
染料木素和其他异
黄酮,或这类物质的简单衍
生物。