PMID- 23082321 OWN - NLM STAT- MEDLINE DCOM- 20121119 LR - 20211021 IS - 1529-2401 (Electronic) IS - 0270-6474 (Print) IS - 0270-6474 (Linking) VI - 32 IP - 34 DP - 2012 Aug 22 TI - A calorie-restricted diet decreases brain iron accumulation and preserves motor performance in old rhesus monkeys. PG - 11897-904 AB - Caloric restriction (CR) reduces the pathological effects of aging and extends the lifespan in many species, including nonhuman primates, although the effect on the brain is less well characterized. We used two common indicators of aging, motor performance speed and brain iron deposition measured in vivo using magnetic resonance imaging, to determine the potential effect of CR on elderly rhesus macaques eating restricted (n=24, 13 males, 11 females) and standard (n=17, 8 males, 9 females) diets. Both the CR and control monkeys showed age-related increases in iron concentrations in globus pallidus (GP) and substantia nigra (SN), although the CR group had significantly less iron deposition in the GP, SN, red nucleus, and temporal cortex. A Diet X Age interaction revealed that CR modified age-related brain changes, evidenced as attenuation in the rate of iron accumulation in basal ganglia and parietal, temporal, and perirhinal cortex. Additionally, control monkeys had significantly slower fine motor performance on the Movement Assessment Panel, which was negatively correlated with iron accumulation in left SN and parietal lobe, although CR animals did not show this relationship. Our observations suggest that the CR-induced benefit of reduced iron deposition and preserved motor function may indicate neural protection similar to effects described previously in aging rodent and primate species. FAU - Kastman, Erik K AU - Kastman EK AD - Geriatric Research Education and Clinical Center, Wm. S. Middleton Memorial Veterans Hospital, Madison, Wisconsin 53705, USA. FAU - Willette, Auriel A AU - Willette AA FAU - Coe, Christopher L AU - Coe CL FAU - Bendlin, Barbara B AU - Bendlin BB FAU - Kosmatka, Kris J AU - Kosmatka KJ FAU - McLaren, Donald G AU - McLaren DG FAU - Xu, Guofan AU - Xu G FAU - Canu, Elisa AU - Canu E FAU - Field, Aaron S AU - Field AS FAU - Alexander, Andrew L AU - Alexander AL FAU - Voytko, Mary Lou AU - Voytko ML FAU - Beasley, T Mark AU - Beasley TM FAU - Colman, Ricki J AU - Colman RJ FAU - Weindruch, Richard H AU - Weindruch RH FAU - Johnson, Sterling C AU - Johnson SC LA - eng GR - R01 AG043125/AG/NIA NIH HHS/United States GR - RR020141-01/RR/NCRR NIH HHS/United States GR - P01 AG11915/AG/NIA NIH HHS/United States GR - AG000213/AG/NIA NIH HHS/United States GR - T32 AG000213/AG/NIA NIH HHS/United States GR - P01 AG011915/AG/NIA NIH HHS/United States GR - C06 RR020141/RR/NCRR NIH HHS/United States GR - C06 RR015459/RR/NCRR NIH HHS/United States GR - P51 RR000167/RR/NCRR NIH HHS/United States GR - RR15459-01/RR/NCRR NIH HHS/United States PT - Corrected and Republished Article PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - J Neurosci JT - The Journal of neuroscience : the official journal of the Society for Neuroscience JID - 8102140 RN - E1UOL152H7 (Iron) SB - IM CRF - J Neurosci. 2010 Jun 9;30(23):7940-7. PMID: 20534842 MH - Aging MH - Animals MH - Brain/*metabolism MH - *Brain Mapping MH - *Caloric Restriction MH - Eating/physiology MH - Electronic Data Processing MH - Female MH - Image Processing, Computer-Assisted MH - Iron/blood/*metabolism MH - Macaca mulatta MH - Magnetic Resonance Imaging MH - Male MH - Multivariate Analysis MH - Psychomotor Performance/*physiology MH - Statistics as Topic PMC - PMC3548565 MID - NIHMS403452 EDAT- 2012/10/20 06:00 MHDA- 2012/12/10 06:00 PMCR- 2013/02/22 CRDT- 2012/10/20 06:00 PHST- 2012/10/20 06:00 [entrez] PHST- 2012/10/20 06:00 [pubmed] PHST- 2012/12/10 06:00 [medline] PHST- 2013/02/22 00:00 [pmc-release] AID - 3786630 [pii] AID - 10.1523/jneurosci.2553-12.2012 [doi] PST - ppublish SO - J Neurosci. 2012 Aug 22;32(34):11897-904. doi: 10.1523/jneurosci.2553-12.2012.