2001
Oestrogen-induced changes in the synaptology of the monkey (Cercopithecus aethiops) arcuate nucleus during gonadotropin feedback.
Zsarnovszky A, Horvath T, Garcia-Segura L, Horvath B, Naftolin F. Oestrogen-induced changes in the synaptology of the monkey (Cercopithecus aethiops) arcuate nucleus during gonadotropin feedback. Journal Of Neuroendocrinology 2001, 13: 22-8. PMID: 11123512, DOI: 10.1046/j.1365-2826.2001.00602.x.Peer-Reviewed Original ResearchConceptsGnRH neuronesGnRH cellsDay 1Day 2Day 8Pg/Gonadotropin secretionOestrogen-induced LH surgeAfrican green monkeysInhibitory innervationEstrogen modulationOVX monkeysLH surgeArcuate nucleusSerum concentrationsExcitatory inputsInhibitory synapsesExcitatory synapsesInhibitory inputsSynaptic connectionsGnRHNeuronesGreen monkeysSynapsesPronounced alterationsOestrogen‐Induced Changes in the Synaptology of the Monkey (Cercopithecus aethiops) Arcuate Nucleus During Gonadotropin Feedback
Zsarnovszky A, Horvath TL, Garcia‐Segura L, Horvath B, Naftolin F. Oestrogen‐Induced Changes in the Synaptology of the Monkey (Cercopithecus aethiops) Arcuate Nucleus During Gonadotropin Feedback. Journal Of Neuroendocrinology 2001, 13: 22-28. DOI: 10.1111/j.1365-2826.2001.00602.x.Peer-Reviewed Original ResearchConceptsGnRH neuronesGnRH cellsDay 1Day 2Day 8Pg/Gonadotropin secretionArcuate nucleusOestrogen-induced LH surgeAfrican green monkeysGonadotropin feedbackInhibitory innervationEstrogen modulationOVX monkeysLH surgeSerum concentrationsExcitatory inputsInhibitory synapsesExcitatory synapsesInhibitory inputsSynaptic connectionsGnRHNeuronesGreen monkeysSynapses
1997
Control of gonadotropin feedback: The possible role of estrogen-induced hypothalamic synaptic plasticity
Horvath TL, Garcia-segura LM, Naftolin F. Control of gonadotropin feedback: The possible role of estrogen-induced hypothalamic synaptic plasticity. Gynecological Endocrinology 1997, 11: 139-143. PMID: 9174856, DOI: 10.3109/09513599709152525.Peer-Reviewed Original ResearchConceptsSynaptic plasticityEstrogen-induced synaptic plasticityHypothalamic arcuate nucleusPreovulatory gonadotropin surgeInhibitory synaptic connectionsGonadotropin feedbackGonadotropin surgeArcuate nucleusPreovulatory surgePituitary gonadotrophsSynaptic connectionsSecretion resultsRecent evidenceMassive releaseEstrogenPossible roleGonadotropinHypothalamusCritical eventsGonadotrophs
1996
Morphological and pharmacological evidence for neuropeptide Y-galanin interaction in the rat hypothalamus
Horvath TL, Naftolin F, Leranth C, Sahu A, Kalra SP. Morphological and pharmacological evidence for neuropeptide Y-galanin interaction in the rat hypothalamus. Endocrinology 1996, 137: 3069-3077. PMID: 8770933, DOI: 10.1210/endo.137.7.8770933.Peer-Reviewed Original ResearchMeSH KeywordsAnalysis of VarianceAnimalsArcuate Nucleus of HypothalamusAxonsCerebral VentriclesColchicineDendritesEstradiolEstrusFemaleGalaninHypothalamusHypothalamus, AnteriorImmunoenzyme TechniquesImmunohistochemistryLuteinizing HormoneMicroscopy, ImmunoelectronNeuronsNeuropeptide YOvariectomyParaventricular Hypothalamic NucleusPreoptic AreaProgesteroneRatsRats, Sprague-DawleySignal TransductionSubstance PSupraoptic NucleusConceptsNeuropeptide YMedial preoptic areaLH releaseGAL neuronsArcuate nucleusIntraventricular injectionParaventricular nucleusPreoptic areaSupraoptic nucleusSynaptic connectionsBasal LH releaseNPY-immunoreactive axonsPituitary hormone secretionPituitary gonadotropin releaseRelease of gonadotropinsMicroscopic examinationHypothalamic peptidergic systemsPeroxidase-antiperoxidase techniqueAvidin-biotin peroxidaseLight microscopic examinationMechanism of actionDiaminobenzidine reactionGAL releaseNPY inputNPY administration
1994
Naloxone reduces the feeding evoked by intracerebroventricular galanin injection
Dube M, Horvath T, Leranth C, Kalra P, Kalra S. Naloxone reduces the feeding evoked by intracerebroventricular galanin injection. Physiology & Behavior 1994, 56: 811-813. PMID: 7528433, DOI: 10.1016/0031-9384(94)90247-x.Peer-Reviewed Original ResearchConceptsBeta-endorphin releaseFood intakeOpioid receptor antagonist naloxoneHighest naloxone doseDose-related fashionStimulation of feedingImmunopositive cell bodiesGalanin-immunoreactive fibersDose-dependent mannerGalanin injectionICV injectionNaloxone doseAntagonist naloxoneBasal hypothalamusBeta-endorphinCentral injectionMaximal suppressionGalaninMorphological findingsSynaptic connectionsCell bodiesNaloxoneIntakeInjectionStimulation
1992
Neuropeptide-Y innervation of beta-endorphin-containing cells in the rat mediobasal hypothalamus: a light and electron microscopic double immunostaining analysis
Horvath TL, Naftolin F, Kalra SP, Leranth C. Neuropeptide-Y innervation of beta-endorphin-containing cells in the rat mediobasal hypothalamus: a light and electron microscopic double immunostaining analysis. Endocrinology 1992, 131: 2461-2467. PMID: 1425443, DOI: 10.1210/endo.131.5.1425443.Peer-Reviewed Original ResearchConceptsPituitary LH releaseLH releaseOvariectomized ratsMediobasal hypothalamusSynaptic connectionsNPY-immunoreactive axonsBeta-endorphin systemSynaptic membrane specializationsRat mediobasal hypothalamusDirect synaptic connectionsDiaminobenzidine reactionLHRH neuronsNPY neuronsDual effectHypothalamic NPYLH secretionMedial basalLHRH secretionOvarian steroidsPrecise neural mechanismsFemale ratsAxon terminalsElectron microscopic examinationPeptidergic systemsNeuroendocrine regulationBeta-endorphin innervation of dopamine neurons in the rat hypothalamus: a light and electron microscopic double immunostaining study
Horvath TL, Naftolin F, Leranth C. Beta-endorphin innervation of dopamine neurons in the rat hypothalamus: a light and electron microscopic double immunostaining study. Endocrinology 1992, 131: 1547-1555. PMID: 1354605, DOI: 10.1210/endo.131.3.1354605.Peer-Reviewed Original ResearchConceptsDopamine neuronsZona incertaDopamine cellsSynaptic connectionsCell bodiesDouble immunostaining experimentsHypophyseal hormone secretionHypothalamic dopaminergic systemFemale rat brainHypothalamic dopaminergic neuronsDorsomedial hypothalamic nucleusDopamine cell bodiesReceptor-containing cellsDouble immunostaining studiesLight microscopic examinationPutative synaptic connectionsLH releaseDopamine innervationImmunoreactive boutonsPeriventricular areaDopaminergic neuronsPRL secretionSynaptic contactsArcuate nucleusHormone secretion