〇Shuichi Yanai¹, Tomoko Arasaki¹, Shogo Endo¹ (1.Tokyo Metropolitan Institute of Gerontology)

〇Hyunsu Jung¹, Hyopil Kim¹, Su-Eon Sim¹, Myung Won Kim¹, Jisu Lee¹, June hyun Jeong¹, Yu-Kyung Lee², Jin-A Lee², Bong-Kiun Kaang¹ (1. School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul, Korea, 2.Department of Biotechnology, College of Life Science and Nano Technology, Hannam University, Daejeon 305-811, Korea)