4 Laboratory Animal Resource Center in Transborder Medical Research Center, and Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
5 Space Biology Laboratory in Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.
6 Department of Management Nutrition, Tokai Gakuin University, Kakamigahara, Japan.
7 Department of Physiology, Gifu University Graduate School of Medicine, Gifu, Japan.