Methods:To build the mice model of aging by inject D-galactose and at the same time being treated with angelica decoction ,then observe the concentration of apoptosis in brain cell and thymus index.

• 方法:用D-半乳糖诱导小鼠制成衰老模型,同时给予不同剂量的当归水煎剂,观察当归对脑组织细胞凋亡及胸腺指数的影响。