1Department of Cell Chemistry, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan
2Graduate School of Integrated Science, Yokohama City University, 3-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
3Department of Experimental Biology, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan