1 Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal; Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas; ecarvalh@cnc.uc.pt.
2 Heritage Medical Research Building, University of Alberta, Edmonton, Alberta, Canada; and.
3 Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas; Arkansas Children's Nutrition Center, Arkansas Children's Hospital Research Institute, and Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
4 Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal;