1. Department of Molecular Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
2. Department of Neurosurgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
3. International Research Center for Medical Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan
4. Department of Neurosurgery, Fukuoka Neurosurgical Hospital, Fukuoka 811-1313, Japan
5. Department of Neurosurgery, Kurume University School of Medicine, Fukuoka 830-0011, Japan
6. Department of Neurosurgery, Sakurajuji Hospital, Kumamoto 861-4173, Japan
7. Center for Metabolic Regulation of Healthy Aging, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan