2011
Obesity is associated with hypothalamic injury in rodents and humans
Thaler JP, Yi CX, Schur EA, Guyenet SJ, Hwang BH, Dietrich MO, Zhao X, Sarruf DA, Izgur V, Maravilla KR, Nguyen HT, Fischer JD, Matsen ME, Wisse BE, Morton GJ, Horvath TL, Baskin DG, Tschöp MH, Schwartz MW. Obesity is associated with hypothalamic injury in rodents and humans. Journal Of Clinical Investigation 2011, 122: 153-162. PMID: 22201683, PMCID: PMC3248304, DOI: 10.1172/jci59660.Peer-Reviewed Original ResearchConceptsHigh-fat dietHFD feedingMediobasal hypothalamusPeripheral tissuesRodent modelsBody weight controlHypothalamic arcuate nucleusSubstantial weight gainConsequences of obesityNeuron injuryHypothalamic injuryNeuronal injuryNeuroprotective mechanismsReactive gliosisObese humansHypothalamic areaArcuate nucleusInflammatory signalingBrain areasWeight controlObesityGliosisEnergy homeostasisWeight gainInflammation
2009
Leptin Acts via Leptin Receptor-Expressing Lateral Hypothalamic Neurons to Modulate the Mesolimbic Dopamine System and Suppress Feeding
Leinninger GM, Jo YH, Leshan RL, Louis GW, Yang H, Barrera JG, Wilson H, Opland DM, Faouzi MA, Gong Y, Jones JC, Rhodes CJ, Chua S, Diano S, Horvath TL, Seeley RJ, Becker JB, Münzberg H, Myers MG. Leptin Acts via Leptin Receptor-Expressing Lateral Hypothalamic Neurons to Modulate the Mesolimbic Dopamine System and Suppress Feeding. Cell Metabolism 2009, 10: 89-98. PMID: 19656487, PMCID: PMC2723060, DOI: 10.1016/j.cmet.2009.06.011.Peer-Reviewed Original ResearchConceptsLateral hypothalamic areaVentral tegmental areaMesolimbic DA systemLepRb neuronsMesolimbic dopamine systemLeptin actionLeptin receptorDopamine systemDA systemLeptin-deficient animalsLateral hypothalamic neuronsAnorexigenic hormone leptinLeptin actsHypothalamic areaHypothalamic neuronsSuppress feedingHormone leptinTegmental areaDA contentInhibitory neuronsRate-limiting enzymeBody weightNeuronsLeptinReceptors
2006
Orexin neuronal changes in the locus coeruleus of the aging rhesus macaque
Downs JL, Dunn MR, Borok E, Shanabrough M, Horvath TL, Kohama SG, Urbanski HF. Orexin neuronal changes in the locus coeruleus of the aging rhesus macaque. Neurobiology Of Aging 2006, 28: 1286-1295. PMID: 16870307, DOI: 10.1016/j.neurobiolaging.2006.05.025.Peer-Reviewed Original ResearchConceptsLateral hypothalamic areaPoor sleep qualityLocus coeruleusNoradrenergic locus coeruleusSleep qualityNeuron numberRhesus macaquesAge-related decreaseTyrosine hydroxylase mRNAAge-related lossMale rhesus macaquesOrexin innervationOrexin neuronsOrexin neuropeptidesAge-related declineB immunoreactivityHypothalamic areaNeuronal changesElderly humansAxon densityLC contributeHydroxylase mRNANonhuman primatesOld animalsAdult animals
2004
Direct visual and circadian pathways target neuroendocrine cells in primates
Abizaid A, Horvath B, Keefe DL, Leranth C, Horvath TL. Direct visual and circadian pathways target neuroendocrine cells in primates. European Journal Of Neuroscience 2004, 20: 2767-2776. PMID: 15548220, DOI: 10.1111/j.1460-9568.2004.03737.x.Peer-Reviewed Original ResearchConceptsSuprachiasmatic nucleusRetinal inputNeuroendocrine cellsDirect retinal inputHormone-releasing hormoneNon-human primatesHypothalamic suprachiasmatic nucleusSCN efferentsHypothalamic areaHypothalamic neuronsHypothalamic sitesMonosynaptic pathwayVisual afferentsHypothalamic regulatorGonadal axisHormone releaseNeuroendocrine functionPituitary gonadotropsPhotic modulationNeuronsCircadian pacemakerVervet monkeysPresent studyTracing techniquesCircadian clock
2000
Evidence that NPY Y1 receptors are involved in stimulation of feeding by orexins (hypocretins) in sated rats
Jain M, Horvath T, Kalra P, Kalra S. Evidence that NPY Y1 receptors are involved in stimulation of feeding by orexins (hypocretins) in sated rats. Peptides 2000, 87: 19-24. PMID: 10710284, DOI: 10.1016/s0167-0115(99)00102-0.Peer-Reviewed Original ResearchConceptsNeuropeptide YLateral hypothalamic areaArcuate nucleusY1 receptorParaventricular nucleusSelective NPY Y1 receptor antagonistNPY Y1 receptor antagonistNPY Y1 receptorY1 receptor antagonistStimulation of feedingAdult male ratsDose-dependent mannerOrexigenic peptideOrexin ANPY receptorsExcitatory effectsHypothalamic areaHypothalamic appetiteReceptor antagonistMale ratsSated ratsOrexinNeural sitesReceptorsNPYergic
1997
Aromatase in axonal processes of early postnatal hypothalamic and limbic areas including the cingulate cortex
Horvath T, Roa-Pena L, Jakab R, Simpson E, Naftolin F. Aromatase in axonal processes of early postnatal hypothalamic and limbic areas including the cingulate cortex. The Journal Of Steroid Biochemistry And Molecular Biology 1997, 61: 349-357. PMID: 9365210, DOI: 10.1016/s0960-0760(97)80032-5.Peer-Reviewed Original ResearchConceptsAxonal processesLimbic areasStria terminalisCritical perinatal periodMedial preoptic areaPostnatal day 5Limbic cortexArcuate nucleusHypothalamic areaNeuronal perikaryaLimbic structuresMedial septumPerinatal periodPreoptic areaDiagonal bandMedial nucleusAxon terminalsImmunoreactive elementsPerikaryal labelingPeriventricular regionLateral septumBed nucleusParacrine actionRat brainLateral habenulaGonadal steroids target AMPA glutamate receptor-containing neurons in the rat hypothalamus, septum and amygdala: a morphological and biochemical study.
Diano S, Naftolin F, Horvath T. Gonadal steroids target AMPA glutamate receptor-containing neurons in the rat hypothalamus, septum and amygdala: a morphological and biochemical study. Endocrinology 1997, 138: 778-89. PMID: 9003015, DOI: 10.1210/endo.138.2.4937.Peer-Reviewed Original ResearchConceptsGonadal steroidsHypothalamic regionsExcitatory neurotransmissionAMPA receptorsReceptor-containing neuronsAMPA receptor expressionLevels of GluR1GluR2/3 expressionHormonal milieuHypothalamic areaFemale ratsAndrogen receptorDouble immunocytochemistryEstradiol treatmentHypothalamic functionReceptor expressionGlutamate receptorsEstrogen receptorBed nucleusHormonal treatmentRat hypothalamusHigh incidenceStimulatory influenceWestern blotHypothalamus
1993
Aromatase immunoreactivity in the rat brain: Gonadectomy-sensitive hypothalamic neurons and an unresponsive “limbic ring” of the lateral septum-bed nucleus-amygdala complex
Jakab RL, Horvath TL, Leranth C, Harada N, Naftolin F. Aromatase immunoreactivity in the rat brain: Gonadectomy-sensitive hypothalamic neurons and an unresponsive “limbic ring” of the lateral septum-bed nucleus-amygdala complex. The Journal Of Steroid Biochemistry And Molecular Biology 1993, 44: 481-498. PMID: 8476763, DOI: 10.1016/0960-0760(93)90253-s.Peer-Reviewed Original ResearchConceptsAromatase-immunoreactive neuronsRat brainAromatase systemStria terminalisLateral septal areaDorsomedial hypothalamic nucleusCentral amygdaloid nucleusMidline thalamic regionAxon-like processesDorsolateral hypothalamic areaNeuron systemConversion of androgensLaterodorsal divisionSubincertal nucleusHuman placental aromataseAromatase immunoreactivityBrain distributionGonadectomized ratsHypothalamic areaHypothalamic neuronsAmygdaloid nucleusLimbic areasHypothalamic nucleiZona incertaSeptal area