烷酰胺是存在于紫锥菊Echinacea purpurea或狭叶紫锥菊E.angustifolia地上部分和根的乙醇提取物中的一类成分,具有免疫刺激和抗炎等作用。然而这类成分口服后的代谢鲜有报道。作者采用随机、开放、单剂量交叉试验研究了受试者口服狭叶紫锥菊根60%乙醇提取物后,烷酰胺在体内的药 Alkanamides are a class of components found in the ethanol extract of the aerial parts and roots of Echinacea purpurea or E. angustifolia, which have immunostimulatory and anti-inflammatory effects. However, the metabolism of these components after oral administration is rarely reported. The authors used a randomized, open-dose, single-dose crossover study to study the effects of alkanamide in vivo after oral administration of 60% ethanol extract of Echinacea purpurea.