1. Department of Anatomy and Neuroscience and
2. Core Research for Evolutional Science and Technology, Japan Science and Technology, Kawaguchi City 332-0012, Japan
3. Division of Nephrology, Department of Medicine, Osaka Rosai Hospital, Sakai, Osaka 591-8025;
4. First Department of Medicine, Osaka University Graduate School of Medicine, Suita City 565-0871;
5. HSP Research Institute, Kyoto Research Park, Shimogyo-Ku, Kyoto 600-8813; and