中华医学杂志（英文版）2004，Vol.117Issue(5)：742-747,6.
Klotho is a serum factor related to human aging
Klotho is a serum factor related to human aging
摘要
Abstract
Background Does klotho (KL) protein exist in human serum, and is there any correlation between KL protein in serum with human aging? In order to answer those questions, we identified KL protein in human serum and established the correlation between KL protein in human serum and aging.Methods We prepared a polyclonal antibody against human KL protein that was able to recognize the C-terminal of human secreted KL protein. Western blot and enzyme-linked immunosorbent assay (ELISA) were used to identify KL protein in human serum.Results In Western blot, the antibody specifically recognized a 60-kD KL protein in both human and mice serum. The population aged from 0 to 91 years screened by ELISA revealed that the level of serum KL declined while age increased, though each individual level was variable and that the trend of decreasing in serum KL had no difference in sex.Conclusion Our data suggest that KL is a serum factor related to human aging.关键词
klotho/aging/polyclonal antibodyKey words
klotho/aging/polyclonal antibody分类
医药卫生引用本文复制引用
肖能明,张焱明,郑权,顾军..Klotho is a serum factor related to human aging[J].中华医学杂志（英文版）,2004,117(5):742-747,6.基金项目
This work was supported by a grant from the National "973" Project of China (No.G2000057009). （No.G2000057009）
