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COUPLING ENERGY METABOLISM WITH A MECHANISM TO SUPPORT BRAIN-DERIVED NEUROTROPHIC FACTOR-MEDIATED SYNAPTIC PLASTICITY

By S. Vaynman, A Z. Ying, A A. Wu A and F. Gomez-pinilla A

Abstract

Abstract—Synaptic plasticity and behaviors are likely dependent on the capacity of neurons to meet the energy demands imposed by neuronal activity. We used physical activity, a paradigm intrinsically associated with energy consumption/ expenditure and cognitive enhancement, to study how energy metabolism interacts with the substrates for neuroplasticity. We found that in an area critical for learning and memory, the hippocampus, exercise modified aspects of energy metabolism by decreasing oxidative stress and increasing the levels of cytochrome c oxidase-II, a specific component of mitochondrial machinery. We infused 1,25-dihydroxyvitamin D3, a modulator of energy metabolism, directly into the hippocampus during 3 days of voluntary wheel running and measured its effects on brain-derived neurotrophic factormediated synaptic plasticity. Brain-derived neurotrophic facto

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.319.4736
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