2019
Prefrontal Cortical and Behavioral Adaptations to Surgical Delivery Mediated by Metabolic Principles
Taylor-Giorlando M, Scheinost D, Ment L, Rothman D, Horvath TL. Prefrontal Cortical and Behavioral Adaptations to Surgical Delivery Mediated by Metabolic Principles. Cerebral Cortex 2019, 29: 5061-5071. PMID: 30877804, PMCID: PMC6918927, DOI: 10.1093/cercor/bhz046.Peer-Reviewed Original ResearchConceptsMode of deliverySurgical deliveryLayer 3 pyramidal neuronsAlters mitochondrial dynamicsValues of miceMurine findingsCerebral cortexPyramidal neuronsAdult behaviorHuman neonatesMaze testPrepulse inhibitionSpine synapsesPsychiatric illnessAdult miceNeuronal circuitryAnimal modelsClinical relevanceHuman clinical relevanceUCP-2Prefrontal cortexMitochondrial adaptationsImpaired performanceMitochondrial mechanismsBehavioral phenotypes
2009
Ghrelin Promotes and Protects Nigrostriatal Dopamine Function via a UCP2-Dependent Mitochondrial Mechanism
Andrews ZB, Erion D, Beiler R, Liu ZW, Abizaid A, Zigman J, Elsworth JD, Savitt JM, DiMarchi R, Tschöp M, Roth RH, Gao XB, Horvath TL. Ghrelin Promotes and Protects Nigrostriatal Dopamine Function via a UCP2-Dependent Mitochondrial Mechanism. Journal Of Neuroscience 2009, 29: 14057-14065. PMID: 19906954, PMCID: PMC2845822, DOI: 10.1523/jneurosci.3890-09.2009.Peer-Reviewed Original ResearchConceptsDA cell lossNigrostriatal dopamine functionParkinson's diseaseDopamine functionCell lossSubstantia nigra pars compactaSNpc DA neuronsStriatal dopamine levelsStriatal dopamine lossExogenous ghrelin administrationLoss of appetiteDopamine cell degenerationNovel therapeutic strategiesMitochondrial mechanismsTyrosine hydroxylase mRNAReactive oxygen species productionMPTP treatmentPeripheral ghrelinSNpc cellsTetrahydropyridine (MPTP) treatmentDA neuronsDopamine lossGhrelin administrationPars compactaCatecholaminergic neurons
2008
Exercise-Induced Synaptogenesis in the Hippocampus Is Dependent on UCP2-Regulated Mitochondrial Adaptation
Dietrich MO, Andrews ZB, Horvath TL. Exercise-Induced Synaptogenesis in the Hippocampus Is Dependent on UCP2-Regulated Mitochondrial Adaptation. Journal Of Neuroscience 2008, 28: 10766-10771. PMID: 18923051, PMCID: PMC3865437, DOI: 10.1523/jneurosci.2744-08.2008.Peer-Reviewed Original ResearchConceptsSynaptic plasticityVoluntary exerciseEssential organellesUCP2 functionProtein-2 mRNA expressionDendritic spine synapsesBioenergetic adaptationMitochondrial metabolismMitochondrial oxygen consumptionMitochondrial numberEnergetic needsMitochondrial adaptationsMitochondrial mechanismsExercise inducesDentate gyrusStratum radiatumSpine synapsesCA1 regionGlial morphologyHippocampal formationNeuronal activityGranule cellsAction potentialsNeuronal morphologyMRNA expressionUCP2 mediates ghrelin’s action on NPY/AgRP neurons by lowering free radicals
Andrews ZB, Liu ZW, Walllingford N, Erion DM, Borok E, Friedman JM, Tschöp MH, Shanabrough M, Cline G, Shulman GI, Coppola A, Gao XB, Horvath TL, Diano S. UCP2 mediates ghrelin’s action on NPY/AgRP neurons by lowering free radicals. Nature 2008, 454: 846-851. PMID: 18668043, PMCID: PMC4101536, DOI: 10.1038/nature07181.Peer-Reviewed Original ResearchMeSH KeywordsAgouti-Related ProteinAnimalsCarnitine O-PalmitoyltransferaseFatty AcidsFeeding BehaviorGene Expression RegulationGhrelinHypothalamusIon ChannelsMembrane Potential, MitochondrialMiceMitochondriaMitochondrial ProteinsNeuronsNeuropeptide YPhosphorylationReactive Oxygen SpeciesSynapsesUncoupling Protein 2ConceptsNPY/AgRP neuronsAgRP neuronsNeuronal activityCo-express neuropeptide YGut-derived hormone ghrelinAgRP neuronal activityArcuate nucleus neuronsFatty acid oxidation pathwayHypothalamic mitochondrial respirationG protein-coupled receptorsGhrelin actionNeuropeptide YNucleus neuronsHormone ghrelinFood intakeGhrelinFree radicalsSynaptic plasticityNeuronal functionIntracellular mechanismsNeuronsMitochondrial mechanismsProtein 2Mitochondrial proliferationRobust changes