PMID- 24984898 OWN - NLM STAT- MEDLINE DCOM- 20141031 LR - 20211021 IS - 1559-7016 (Electronic) IS - 0271-678X (Print) IS - 0271-678X (Linking) VI - 34 IP - 9 DP - 2014 Sep TI - Caloric restriction impedes age-related decline of mitochondrial function and neuronal activity. PG - 1440-3 LID - 10.1038/jcbfm.2014.114 [doi] AB - Caloric restriction (CR) prolongs lifespan and retards many detrimental effects of aging, but its effect on brain mitochondrial function and neuronal activity--especially in healthy aging--remains unexplored. Here we measured rates of neuronal glucose oxidation and glutamate-glutamine neurotransmitter cycling in young control, old control (i.e., healthy aging), and old CR rats using in vivo nuclear magnetic resonance spectroscopy. We found that, compared with the young control, neuronal energy production and neurotransmission rates were significantly reduced in healthy aging, but were preserved in old CR rats. The results suggest that CR mitigated the age-related deceleration of brain physiology. FAU - Lin, Ai-Ling AU - Lin AL AD - 1] Sanders-Brown Center on Aging, University of Kentucky, Lexington, Kentucky, USA [2] Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky, USA. FAU - Coman, Daniel AU - Coman D AD - 1] Magnetic Resonance Research Center, Yale University, New Haven, Connecticut, USA [2] Quantitative Neuroscience with Magnetic Resonance Core Center, Yale University, New Haven, Connecticut, USA [3] Department of Diagnostic Radiology, Yale University, New Haven, Connecticut, USA. FAU - Jiang, Lihong AU - Jiang L AD - 1] Magnetic Resonance Research Center, Yale University, New Haven, Connecticut, USA [2] Quantitative Neuroscience with Magnetic Resonance Core Center, Yale University, New Haven, Connecticut, USA [3] Department of Diagnostic Radiology, Yale University, New Haven, Connecticut, USA. FAU - Rothman, Douglas L AU - Rothman DL AD - 1] Magnetic Resonance Research Center, Yale University, New Haven, Connecticut, USA [2] Quantitative Neuroscience with Magnetic Resonance Core Center, Yale University, New Haven, Connecticut, USA [3] Department of Diagnostic Radiology, Yale University, New Haven, Connecticut, USA [4] Department of Biomedical Engineering, Yale University, New Haven, Connecticut, USA. FAU - Hyder, Fahmeed AU - Hyder F AD - 1] Magnetic Resonance Research Center, Yale University, New Haven, Connecticut, USA [2] Quantitative Neuroscience with Magnetic Resonance Core Center, Yale University, New Haven, Connecticut, USA [3] Department of Diagnostic Radiology, Yale University, New Haven, Connecticut, USA [4] Department of Biomedical Engineering, Yale University, New Haven, Connecticut, USA. LA - eng GR - R01 AG 034953/AG/NIA NIH HHS/United States GR - P30 NS052519/NS/NINDS NIH HHS/United States GR - R01 MH067528/MH/NIMH NIH HHS/United States GR - KL2 TR001118/TR/NCATS NIH HHS/United States GR - R01 AG034953/AG/NIA NIH HHS/United States GR - UL1 TR000142/TR/NCATS NIH HHS/United States GR - R01 MH-067528/MH/NIMH NIH HHS/United States GR - P30 NS-052519/NS/NINDS NIH HHS/United States GR - UL1 TR001120/TR/NCATS NIH HHS/United States GR - K01AG040164/AG/NIA NIH HHS/United States GR - K01 AG040164/AG/NIA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20140702 PL - United States TA - J Cereb Blood Flow Metab JT - Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism JID - 8112566 RN - 0RH81L854J (Glutamine) RN - 3KX376GY7L (Glutamic Acid) SB - IM MH - Aging/*physiology MH - Animals MH - *Caloric Restriction MH - Glutamic Acid/*metabolism MH - Glutamine/*metabolism MH - Male MH - Mitochondria/*metabolism MH - Rats MH - Rats, Inbred F344 MH - Synaptic Transmission/*physiology PMC - PMC4158670 EDAT- 2014/07/06 06:00 MHDA- 2014/11/02 06:00 PMCR- 2015/09/01 CRDT- 2014/07/03 06:00 PHST- 2014/02/13 00:00 [received] PHST- 2014/05/08 00:00 [revised] PHST- 2014/06/05 00:00 [accepted] PHST- 2014/07/03 06:00 [entrez] PHST- 2014/07/06 06:00 [pubmed] PHST- 2014/11/02 06:00 [medline] PHST- 2015/09/01 00:00 [pmc-release] AID - jcbfm2014114 [pii] AID - 10.1038/jcbfm.2014.114 [doi] PST - ppublish SO - J Cereb Blood Flow Metab. 2014 Sep;34(9):1440-3. doi: 10.1038/jcbfm.2014.114. Epub 2014 Jul 2.