中文摘要：

INTRODUCTION According to the demographics,the world population over 60 years will double from 605 million to 2 billion people between 2000 and 2050.Aging is a complex process in which the organism and its ability to respond to external stresses become progressive decline.The degenerative aging process is the major underlying cause for aging-related diseases,including hypertension,diabetes,neurodegenerative diseases,cancer and so on [Table 1].

英文摘要：

INTRODUCTION According to the demographics, the world population over 60 years will double from 605 million to 2 billion people between 2000 and 2050. Aging is a complex process in which the organism and its ability to respond to external stresses become progressive decline.