1 Graduate Institute of Medical Science, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan

2 Department of Nursing, Hsin Sheng Junior College of Medical Care and Management, Taoyuan, Taiwan

3 Department of General Surgery, Chi Mei Medical Center, Tainan and Liouying, Taiwan

4 Drug Design Development Section, Translational Gerontology Branch, Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, USA

5 Department of Anatomy and Anthropology, Sackler School of Medicine and Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel

6 Graduate Program on Neuroregeneration, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan

7 Department of Neurosurgery, Case Western Reserve University School of Medicine, Cleveland, OH, USA

8 Department of Physiology, College of Medicine, Taipei Medical University, 250 Wu-Hsing St., Taipei 110, Taiwan