1. Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
2. Center for Metabolism and Obesity Research, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
3. College of Life Science, Hunan University of Science and Technology, Hunan, China;
4. Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
5. Department of Neurology and Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
6. Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Centro de Envejecimiento y Regeneración (CARE-UC), Pontificia Universidad Católica de Chile, Santiago, Chile;
7. Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA;
8. Department of Neuroscience, University of Connecticut Health Center, Farmington, Connecticut, USA;
9. Howard Hughes Medical Institute, Johns Hopkins University, Baltimore, Maryland, USA