2003
Estrogen, synaptic plasticity and hypothalamic reproductive aging
Hung AJ, Stanbury MG, Shanabrough M, Horvath TL, Garcia-Segura LM, Naftolin F. Estrogen, synaptic plasticity and hypothalamic reproductive aging. Experimental Gerontology 2003, 38: 53-59. PMID: 12543261, DOI: 10.1016/s0531-5565(02)00183-3.Peer-Reviewed Original ResearchConceptsConstant estrusReproductive agingEstrogen exposureMale ratsAnti-oxidant vitamin EEarly estrogen exposureArcuate nucleus neuronsHypothalamic arcuate nucleus neuronsConstant vaginal estrusHypothalamic failureEstradiol exposureGonadotrophin surgeOvarian estrogenArcuate nucleusConstant diestrusNucleus neuronsOvarian failureElevated estradiolPerikaryal membraneFemale ratsPerinatal periodTesticular androgensRat brainSex steroidsHormonal factors
1997
Lack of Gonadotropin-Positive Feedback in the Male Rat Is Associated with Lack of Estrogen-Induced Synaptic Plasticity in the Arcuate Nucleus
Horvath T, Garcia-Segura L, Naftolin F. Lack of Gonadotropin-Positive Feedback in the Male Rat Is Associated with Lack of Estrogen-Induced Synaptic Plasticity in the Arcuate Nucleus. Neuroendocrinology 1997, 65: 136-140. PMID: 9067991, DOI: 10.1159/000127173.Peer-Reviewed Original ResearchConceptsArcuate nucleusFemale ratsSynaptic plasticitySynaptic retractionMale ratsSynapse countsEstrogen-induced synaptic plasticityFemale arcuate nucleusVehicle-injected groupHypothalamic arcuate nucleusAdministration of estrogenAfternoon of proestrusQuantitative electron microscopic analysisOil-injected controlsGonadotropin secretionSynaptic reorganizationSynaptic countsConstant estrusEndogenous estrogensSynaptic remodelingSingle injectionTreatment groupsHormone injectionEstrogenOvarian cycle
1996
Potential neuronal mechanisms of estrogen actions in synaptogenesis and synaptic plasticity
Naftolin F, Leranth C, Horvath TL, Garcia-Segura LM. Potential neuronal mechanisms of estrogen actions in synaptogenesis and synaptic plasticity. Cellular And Molecular Neurobiology 1996, 16: 213-223. PMID: 8743970, DOI: 10.1007/bf02088177.Peer-Reviewed Original ResearchConceptsSynaptic plasticityArcuate nucleusRole of GABAergicControl of LHMechanism of estrogenRat arcuate nucleusPotential neuronal mechanismsNeural cell adhesion moleculePOMC projectionsSynaptic retractionFSH secretionGnRH cellsGonadotropin levelsConstant estrusDevelopmental synaptogenesisEstrogen actionCell adhesion moleculeSynaptic inputsSynaptic patternsNeuronal mechanismsNeuronal membranesDevelopmental sex differencesAdhesion moleculesEstrogenAdult life