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萆薢的化学成分与药理作用研究

ว 2026-09-09 23:07:35ที่ 药理作用เ 中国国际医疗服务系统
萆薢别名百枝、竹木、赤节、粉萆薢、麻甲等,为薯蓣科植物粉背薯蓣的根茎,同属的纤细薯蓣和山萆薢在部分地区也作萆薢入药。味苦性平,归肝、胃、膀胱经,具有利湿浊、祛风湿的功效,主治膏淋、白浊、带下、疮疡、湿疹、风湿痹痛。内服煎汤10-15g或入丸散,肾虚阴亏者慎服。化学成分方面,粉背薯蓣的根茎含薯蓣皂甙元、雅姆皂甙元、β-谷甾醇等甾类成分,以及粉背薯蓣皂甙A、原粉背薯蓣皂甙A、纤细薯蓣皂甙、原纤细薯蓣皂甙等甾甙成分。药理作用包括:1.抗菌杀虫作用,山薯蓣水提取物具有杀昆虫作用,有效成分为薯蓣皂甙等,薯蓣皂甙、纤细薯蓣甙和薯蓣皂甙的前皂甙元B有抗真菌(毛发癣菌、梨形孢子菌)作用;2.对心血管系统影响,纤细萆薢总皂甙粗提物拌入高胆固醇饲料喂饲鹌鹑,可显著降低血清胆固醇和主动脉粥样硬化发生率,纤细薯蓣、日本薯蓣中分离出的多糖有降低小鼠血糖作用;3.抗肿瘤作用,山萆薢所含薯蓣皂甙能抑制肿瘤细胞白血病L1210,IC50为0.17μg/ml;4.毒性,薯蓣皂甙小鼠的LD50大于300mg/kg。临床研究表明,单用萆薢一味碾粉每次服5g每日3次治疗高脂血症62例,高胆固醇血症显效18例有效11例,高三酰甘油血症显效23例有效22例,未见毒副反应且降脂作用持久不易复发。
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