Agrp Neurons Mediate Sirt1's Action on the Melanocortin System and Energy Balance: Roles for Sirt1 in Neuronal Firing and Synaptic Plasticity
Dietrich MO, Antunes C, Geliang G, Liu ZW, Borok E, Nie Y, Xu AW, Souza DO, Gao Q, Diano S, Gao XB, Horvath TL. Agrp Neurons Mediate Sirt1's Action on the Melanocortin System and Energy Balance: Roles for Sirt1 in Neuronal Firing and Synaptic Plasticity. Journal Of Neuroscience 2010, 30: 11815-11825. PMID: 20810901, PMCID: PMC2965459, DOI: 10.1523/jneurosci.2234-10.2010.Peer-Reviewed Original ResearchConceptsFood intakeMelanocortin systemAgRP neuronal activityAnorexigenic POMC neuronsHypothalamic melanocortin systemAction of SIRT1Negative energy balanceAgRP neuronsPOMC neuronsCre-lox technologyInhibitory toneMC4R antagonistFat massLean massSynaptic inputsNeuronal activityNeuronal firingAdult miceBody weightSIRT1 inhibitorSynaptic plasticityCalorie restrictionMelanocortin receptorsSIRT1 activityBody metabolismEarly-Life Experience Reduces Excitation to Stress-Responsive Hypothalamic Neurons and Reprograms the Expression of Corticotropin-Releasing Hormone
Korosi A, Shanabrough M, McClelland S, Liu ZW, Borok E, Gao XB, Horvath TL, Baram TZ. Early-Life Experience Reduces Excitation to Stress-Responsive Hypothalamic Neurons and Reprograms the Expression of Corticotropin-Releasing Hormone. Journal Of Neuroscience 2010, 30: 703-713. PMID: 20071535, PMCID: PMC2822406, DOI: 10.1523/jneurosci.4214-09.2010.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAnalysis of VarianceAnimalsAnimals, NewbornChromatin ImmunoprecipitationCorticotropin-Releasing HormoneExcitatory Amino Acid AntagonistsFemaleGene Expression Regulation, DevelopmentalMaleMaternal DeprivationMicroscopy, Electron, TransmissionNeuronsParaventricular Hypothalamic NucleusPatch-Clamp TechniquesPhysical StimulationPregnancyRatsRats, Sprague-DawleyRepressor ProteinsRNA, MessengerSodium Channel BlockersStress, PsychologicalSynaptic PotentialsTetrodotoxinVesicular Glutamate Transport Protein 2ConceptsCorticotropin-releasing hormoneNeuron-restrictive silencer factorCRH neuronsHypothalamic neuronsCRH expressionEarly life experiencesMiniature excitatory synaptic currentsHypothalamic CRH neuronsExcitatory synaptic currentsCRH gene expressionGlutamate vesicular transporterCRH gene transcriptionTranscriptional repressor neuron-restrictive silencer factorExcitatory innervationExperience-induced neuroplasticityInhibitory synapsesRat pupsExcitatory synapsesSynaptic currentsPersistent suppressionVesicular transportersCognitive functionNeuronsSilencer factorMaternal care