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东北贯众为鳞毛蕨科鳞毛蕨属植物粗茎鳞毛蕨(Dryopteris crassirhizoma Nakai.)的根茎及叶柄残基。我国民间用于驱绦虫及治疗急性感染。国外也曾作为标准的驱虫药收入药典,并认为是欧绵马的最佳代用品。Noro 及Widen 等从产自日本的原料中,分得一主要成分 dryocrassin (东北贯众素),确定了它的化学结构(下图),但未见有关生物活性的报道。此外,Noro 等用电泳法测得,东北贯众中尚含有微量的黄绵马酸及白绵马素,而 Widen 等仅分离到少量不纯的黄绵马酸。
Northeast China is a rhizome and petiole residue of Dryopteris crassirhizoma Nakai. Chinese people are used to drive maggots and treat acute infections. It has also been used as a standard detoxification drug income pharmacopoeia abroad, and is considered to be the best substitute for the European Mama. Noro and Widen, among others, produced dryocrassin, a major component of Japanese raw materials, and determined its chemical structure (below), but no reports of biological activity were found. In addition, Noro et al. measured by electrophoresis that there were traces of yellow cotton acid and white cotton horse pigment in Northeast China, while Widen et al. only separated a small amount of impure yellow powder.