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Bendlin B, Canu E, Willette A, Kastman E, McLaren D, Kosmatka K, Xu G, Field A, Colman R, Coe C, Weindruch R, Alexander A, Johnson S. Effects of aging and calorie restriction on white matter in rhesus macaques. Neurobiol Aging 2011; 32:2319.e1-11. [PMID: 20541839 PMCID: PMC2939965 DOI: 10.1016/j.neurobiolaging.2010.04.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2009] [Revised: 03/12/2010] [Accepted: 04/09/2010] [Indexed: 01/31/2023]
Abstract
Rhesus macaques on a calorie restricted diet (CR) develop less age-related disease, have virtually no indication of diabetes, are protected against sarcopenia, and potentially live longer. Beneficial effects of caloric restriction likely include reductions in age-related inflammation and oxidative damage. Oligodendrocytes are particularly susceptible to inflammation and oxidative stress, therefore, we hypothesized that CR would have a beneficial effect on brain white matter and would attenuate age-related decline in this tissue. CR monkeys and controls underwent diffusion tensor imaging (DTI). A beneficial effect of CR indexed by DTI was observed in superior longitudinal fasciculus, fronto-occipital fasciculus, external capsule, and brainstem. Aging effects were observed in several regions, although CR appeared to attenuate age-related alterations in superior longitudinal fasciculus, frontal white matter, external capsule, right parahippocampal white matter, and dorsal occipital bundle. The results, however, were regionally specific and also suggested that CR is not salutary across all white matter. Further evaluation of this unique cohort of elderly primates to mortality will shed light on the ultimate benefits of an adult-onset, moderate CR diet for deferring brain aging.
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Affiliation(s)
- B.B. Bendlin
- Geriatric Research Educational and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Department of Medicine, Madison, WI, USA
| | - E. Canu
- Geriatric Research Educational and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Department of Medicine, Madison, WI, USA
| | - A.A. Willette
- Harlow Primate Laboratory, Department of Psychology, Madison, WI, USA
- Wisconsin National Primate Research Center, Madison, WI
| | - E.K. Kastman
- Geriatric Research Educational and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Department of Medicine, Madison, WI, USA
| | - D.G. McLaren
- Geriatric Research Educational and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Department of Medicine, Madison, WI, USA
| | - K.J. Kosmatka
- Geriatric Research Educational and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Department of Medicine, Madison, WI, USA
| | - G. Xu
- Geriatric Research Educational and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Department of Medicine, Madison, WI, USA
| | - A.S. Field
- University of Wisconsin School of Medicine and Public Health, Department of Radiology, Madison, WI, USA
| | - R.J. Colman
- Wisconsin National Primate Research Center, Madison, WI
| | - C.L. Coe
- Harlow Primate Laboratory, Department of Psychology, Madison, WI, USA
- Wisconsin National Primate Research Center, Madison, WI
| | - R.H. Weindruch
- Geriatric Research Educational and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Department of Medicine, Madison, WI, USA
- Wisconsin National Primate Research Center, Madison, WI
| | - A.L. Alexander
- University of Wisconsin School of Medicine and Public Health, Departments of Psychiatry and Medical Physics, Madison, WI, USA
- Waisman Laboratory for Brain Imaging and Behavior, Madison, WI, USA
| | - S.C. Johnson
- Geriatric Research Educational and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- University of Wisconsin School of Medicine and Public Health, Department of Medicine, Madison, WI, USA
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Xu G, Mclaren D, Bendlin B, Kastman E, Ries M, Johnson S. The influence of Alzheimer disease family history on gray matter loss in middle-age cognitive normal subjects: a longitudinal VBM study. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70710-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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