Methods: The model was established on the rats 13 months old by D-Galactose solutions, with the perfus stomach with Baoshen Decoction.

• 方法:13月龄大鼠以D-半乳糖溶液造模,同时经胃灌注保肾汤水煎液,设西药组、青年组对照,2月后观察各组大鼠超微结构的改变。