Affiliation: | 1.Research Center on Aging, Department of Biochemistry and Molecular Biology, Peking University Health Science Center, 38 Xueyuan Road, Beijing 100083, 2.Department of Biochemistry, Changzhi Medical College, Changzhi, Shanxi 046000, P. R. China and 3.Laboratory of Cellular and Molecular Biology, National Institute on Aging, National Institutes of Health, 251 Bayview Blvd., Baltimore, MD 21224, USA |