2012
Ghrelin-immunopositive hypothalamic neurons tie the circadian clock and visual system to the lateral hypothalamic arousal center
Horvath TL, Abizaid A, Dietrich MO, Li Y, Takahashi JS, Bass J. Ghrelin-immunopositive hypothalamic neurons tie the circadian clock and visual system to the lateral hypothalamic arousal center. Molecular Metabolism 2012, 1: 79-85. PMID: 24024121, PMCID: PMC3757645, DOI: 10.1016/j.molmet.2012.08.003.Peer-Reviewed Original ResearchHypothalamic neuronsOrexin/hypocretin neuronsOrexin/hypocretin systemUnique anatomical distributionDirect synaptic inputGrowth hormone releaseLateral geniculate nucleusHypothalamic arousal systemsHypocretin neuronsHypothalamic slicesGeniculate nucleusHormone releaseHypocretin systemAnatomical distributionArousal centersSynaptic inputsVisual centersGhrelin mRNAGhrelinArousal systemNeuronsKey mediatorCircadian patternSuprachiasmatic nucleusElectrophysiological activity
2010
Anti-tumor effects of adenovirus containing human growth hormone sequences in a mouse model of human ovarian cancer
Zhu Y, Fariña JB, Meshack S, Santoveña A, Patel S, Oliva A, Llabrés M, Hodsdon ME, Booth CJ, Dannies PS. Anti-tumor effects of adenovirus containing human growth hormone sequences in a mouse model of human ovarian cancer. Endocrine 2010, 37: 430-439. PMID: 20960164, DOI: 10.1007/s12020-010-9333-5.Peer-Reviewed Original ResearchConceptsHuman ovarian cancerOvarian cancerPeritoneal cavityMouse modelTumor cell injectionImmunodeficient SCID miceGrowth hormone releaseHuman ovarian cancer cellsAnti-tumor effectsOvarian cancer cellsReplication-deficient adenovirusLower survival rateLiver metastasesMedian survivalControl miceLung metastasesIntraperitoneal injectionPeritoneal fibrosisLiver toxicitySCID miceHormone releaseHepatocellular changesSurvival rateCell injectionGrowth hormone
2006
Ghrelin controls hippocampal spine synapse density and memory performance
Diano S, Farr SA, Benoit SC, McNay EC, da Silva I, Horvath B, Gaskin FS, Nonaka N, Jaeger LB, Banks WA, Morley JE, Pinto S, Sherwin RS, Xu L, Yamada KA, Sleeman MW, Tschöp MH, Horvath TL. Ghrelin controls hippocampal spine synapse density and memory performance. Nature Neuroscience 2006, 9: 381-388. PMID: 16491079, DOI: 10.1038/nn1656.Peer-Reviewed Original ResearchConceptsHippocampal spine synapse densitySpine synapse densitySpine synapse formationGrowth hormone releaseNovel therapeutic strategiesLong-term potentiationHigher brain functionsEnhanced spatial learningGut hormonesGhrelin administrationHypothalamic actionSynapse densitySpine synapsesCA1 regionHormone releaseNeuropeptide ghrelinGhrelin bindingHippocampal formationTherapeutic strategiesMelanocortin systemGhrelinBrain areasMetabolic controlSynaptic changesSynaptic plasticity
2002
Cortisol modulation of 5-HT-mediated growth hormone release in recovered depressed patients
Bhagwagar Z, Hafizi S, Cowen P. Cortisol modulation of 5-HT-mediated growth hormone release in recovered depressed patients. Journal Of Affective Disorders 2002, 72: 249-255. PMID: 12450642, DOI: 10.1016/s0165-0327(01)00467-0.Peer-Reviewed Original ResearchConceptsGrowth hormone releaseDepressed patientsMajor depressionHormone releaseStress-induced cortisol secretionBrain serotonin functionPlasma GH levelsEffects of cortisolEffect of hydrocortisoneCross-over designStressful life eventsGH responseGH levelsSingle doseCortisol secretionGH releaseHealthy controlsSerotonin functionRecurrent depressionTRP infusionHealthy volunteersCortisol modulationDepressive symptomatologyDepressed subjectsEuthymic subjects
2001
Decreased sensitivity of 5-HT1D receptors in melancholic depression
Whale R, Clifford E, Bhagwagar Z, Cowen P. Decreased sensitivity of 5-HT1D receptors in melancholic depression. The British Journal Of Psychiatry 2001, 178: 454-457. PMID: 11331562, DOI: 10.1192/bjp.178.5.454.Peer-Reviewed Original ResearchConceptsSelective serotonin reuptake inhibitorsGrowth hormone responseGrowth hormone releaseSSRI treatmentMajor depressionHormone releaseMelancholic depressionHormone responseBrain serotonin functionSerotonin reuptake inhibitorsReuptake inhibitorsDepressive syndromeReceptor agonistReceptor subtypesSerotonin functionHealthy subjectsReceptor sensitivityPatientsControl groupMarked reductionZolmitriptanDepressionReceptorsTreatmentSelective ligands
1999
Zolmitriptan-induced growth hormone release in humans: mediation by 5-HT1D receptors?
Whale R, Bhagwagar Z, Cowen P. Zolmitriptan-induced growth hormone release in humans: mediation by 5-HT1D receptors? Psychopharmacology 1999, 145: 223-226. PMID: 10463324, DOI: 10.1007/s002130051052.Peer-Reviewed Original ResearchConceptsPlasma growth hormoneGrowth hormoneCross-over design studyEffect of ketanserinGrowth hormone responsePathophysiology of depressionGrowth hormone releaseNeuroendocrine probeAntidepressant medicationHealthy menReceptor agonistReceptor subtypesHormone releaseHealthy volunteersBlood samplesNeuroendocrine profilePlasma prolactinAgonist activityHormone responseReceptor functionAssay of prolactinZolmitriptanHormoneOral temperatureMode of action
1996
Heparin-binding secretory transforming gene (hst) facilitates rat lactotrope cell tumorigenesis and induces prolactin gene transcription.
Shimon I, Hüttner A, Said J, Spirina O, Melmed S. Heparin-binding secretory transforming gene (hst) facilitates rat lactotrope cell tumorigenesis and induces prolactin gene transcription. Journal Of Clinical Investigation 1996, 97: 187-195. PMID: 8550832, PMCID: PMC507078, DOI: 10.1172/jci118388.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell DivisionFemaleFibroblast Growth Factor 4Fibroblast Growth FactorsGene Expression Regulation, NeoplasticHumansNeoplasm InvasivenessPituitary NeoplasmsProlactinProlactinomaProliferating Cell Nuclear AntigenProto-Oncogene ProteinsProto-OncogenesRatsRats, WistarRecombinant ProteinsRNA, MessengerTranscription, GeneticTumor Cells, CulturedConceptsFibroblast growth factor 4Cell nuclear antigen stainingBasal PRL secretionGrowth hormone releaseDose-dependent increaseRecombinant FGF-4PRL secretionTumor cell culturesProlactin secretionSubcutaneous injectionAutocrine actionHormone releasePituitary cell lineAntigen stainingHuman prolactinomasProlactinoma developmentGH4 cellsHistologic invasivenessTumor growthCell tumorigenesisMRNA expressionPRL synthesisLuciferase reporterPrimary ratPituitary tumorigenesis
1993
Effect of insulin-like growth factor-1 on the responses to and recognition of hypoglycemia in humans. A comparison with insulin.
Kerr D, Tamborlane WV, Rife F, Sherwin RS. Effect of insulin-like growth factor-1 on the responses to and recognition of hypoglycemia in humans. A comparison with insulin. Journal Of Clinical Investigation 1993, 91: 141-147. PMID: 8423214, PMCID: PMC330007, DOI: 10.1172/jci116163.Peer-Reviewed Original ResearchConceptsRecombinant human insulin-like growth factor-1Insulin-like growth factor-1Growth factor-1Glucagon responseGlucose productionAbsent glucagon responsesPlasma glucose nadirsGrowth hormone responseInsulin-induced hypoglycemiaAwareness of hypoglycemiaGrowth hormone releaseFactor 1Hepatic glucose productionHuman insulin-like growth factor-1Recognition of hypoglycemiaSymptomatic awarenessNorepinephrine levelsCounterregulatory responsesHypoglycemic stimulusSympathetic activityGlucose nadirsGlucagon releaseBlood glucoseRebound increaseHormone release
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