银杏为古代孑遗植物,其叶和果有重要的药用价值。银杏叶提取物(extract of ginkgo biloba leaves,EGB)主要有效成分为黄酮类和内酯类。国内外基础和临床研究表明,EGB对多种不同动物种类、动物模型(包括健康成年动物、老年动物、血管痴呆 Ginkgo biloba is an ancient relict plant, and its leaves and fruit have important medicinal value. The main active ingredients of the extract of ginkgo biloba leaves (EGB) are flavonoids and lactones. Basic and clinical studies at home and abroad have shown that EGB affects many different animal species and animal models (including healthy adult animals, aged animals, and vascular dementia