2024
Slow and fast cortical cholinergic arousal is reduced in a mouse model of focal seizures with impaired consciousness
Sieu L, Singla S, Liu J, Zheng X, Sharafeldin A, Chandrasekaran G, Valcarce-Aspegren M, Niknahad A, Fu I, Doilicho N, Gummadavelli A, McCafferty C, Crouse R, Perrenoud Q, Picciotto M, Cardin J, Blumenfeld H. Slow and fast cortical cholinergic arousal is reduced in a mouse model of focal seizures with impaired consciousness. Cell Reports 2024, 43: 115012. PMID: 39643969, DOI: 10.1016/j.celrep.2024.115012.Peer-Reviewed Original ResearchCortical slow wavesFocal seizuresBehavioral responsesAuditory stimuliImpaired behavioral responsesFocal temporal lobe seizuresImpaired consciousnessMouse modelAwake mouse modelResponses to auditory stimuliBehavioral responses to auditory stimuliDecreased cortical arousalImpaired behaviorSlow wavesTemporal lobe seizuresCholinergic releaseModel of focal seizuresHigh-frequency activityCortical functionCortical arousalDepressed cortical functionSubcortical arousalArousalAcetylcholine releaseRat model
2016
Chapter 16 Epilepsy and Consciousness
Blumenfeld H. Chapter 16 Epilepsy and Consciousness. 2016, 255-270. DOI: 10.1016/b978-0-12-800948-2.00016-9.Peer-Reviewed Original ResearchSeizure typesImpaired consciousnessNormal consciousnessDiverse seizure typesTemporal lobe seizuresTonic-clonic seizuresParietal association cortexMedial thalamusUpper brainstemAbsence seizuresNeuronal activityPatient injuryBehavioral testingAssociation cortexEpileptic seizuresSeizuresInterhemispheric regionSynchronous dischargesLateral frontalNeuroimaging signalsAbnormal increaseAnatomical regionsEpilepsySpecific anatomical structuresConsciousness system
2015
Decreased Subcortical Cholinergic Arousal in Focal Seizures
Motelow JE, Li W, Zhan Q, Mishra AM, Sachdev RN, Liu G, Gummadavelli A, Zayyad Z, Lee HS, Chu V, Andrews JP, Englot DJ, Herman P, Sanganahalli BG, Hyder F, Blumenfeld H. Decreased Subcortical Cholinergic Arousal in Focal Seizures. Neuron 2015, 85: 561-572. PMID: 25654258, PMCID: PMC4319118, DOI: 10.1016/j.neuron.2014.12.058.Peer-Reviewed Original ResearchConceptsTemporal lobe seizuresFocal temporal lobe seizuresReduced cholinergic neurotransmissionBilateral temporal lobesLoss of consciousnessPedunculopontine tegmental nucleusQuality of lifeBrainstem arousal systemsFunctional magnetic resonanceSeizure spreadCholinergic neuronsImpaired consciousnessFocal seizuresBasal forebrainAnterior hypothalamusCholinergic neurotransmissionTegmental nucleusLateral septumCortical functionRodent modelsTemporal lobeSubcortical regionsSeizuresImpair consciousnessSubcortical arousal
2013
Temporal Lobe Seizures
Furman M, Blumenfeld H. Temporal Lobe Seizures. 2013, 51-62. DOI: 10.1007/978-3-642-37580-4_4.Peer-Reviewed Original ResearchTemporal lobe seizuresTemporal epilepsyTemporal lobeFocal temporal lobe seizuresNetwork inhibition hypothesisSlow electroencephalogram activityLoss of consciousnessParietal association cortexImpaired consciousnessCortical dysfunctionSide effectsAnimal modelsNovel treatmentsAssociation cortexDeep anesthesiaAwake stateHuman patientsElectrophysiological techniquesMemory lossSeizuresElectroencephalogram (EEG) activityElectrophysiological dataEpilepsyCortexLobe
2010
Impaired consciousness in temporal lobe seizures: role of cortical slow activity
Englot DJ, Yang L, Hamid H, Danielson N, Bai X, Marfeo A, Yu L, Gordon A, Purcaro MJ, Motelow JE, Agarwal R, Ellens DJ, Golomb JD, Shamy MC, Zhang H, Carlson C, Doyle W, Devinsky O, Vives K, Spencer DD, Spencer SS, Schevon C, Zaveri HP, Blumenfeld H. Impaired consciousness in temporal lobe seizures: role of cortical slow activity. Brain 2010, 133: 3764-3777. PMID: 21081551, PMCID: PMC2995886, DOI: 10.1093/brain/awq316.Peer-Reviewed Original ResearchConceptsTemporal lobe seizuresSlow wave activityTemporal lobe epilepsySimple partial seizuresSubcortical arousal systemsImpaired consciousnessSeizure activityTemporal lobeLobe epilepsyArousal systemCortical functionFocal temporal lobe seizuresHz slow wave activityMesial temporal lobe epilepsyCortical slow activityDepressed cortical functionNetwork inhibition hypothesisTemporal lobe disordersComplex partial seizuresBilateral temporal lobesLanguage-dominant temporal lobeSlow wavesCortical-subcortical networksPowerful inhibitory effectIntracranial electroencephalography recordings