2024
Noninvasive Gamma Sensory Stimulation May Reduce White Matter and Myelin Loss in Alzheimer’s Disease
Da X, Hempel E, Ou Y, Rowe O, Malchano Z, Hajós M, Kern R, Megerian J, Cimenser A. Noninvasive Gamma Sensory Stimulation May Reduce White Matter and Myelin Loss in Alzheimer’s Disease. Journal Of Alzheimer’s Disease 2024, 97: 359-372. PMID: 38073386, PMCID: PMC10789351, DOI: 10.3233/jad-230506.Peer-Reviewed Original ResearchConceptsWhite matter atrophyActive treatment participantsMatter atrophyAlzheimer's diseaseMyelin lossTreatment participantsWhite matterNeuronal network functionT2-weighted MRIEarly disease interventionMRI outcomesClinical trialsEntorhinal regionWhite matter structuresHz stimulationMagnetic resonance imaging dataAfferent connectionsInclusion criteriaTherapeutic approachesAtrophySensory stimulationVolume assessmentDisease interventionDiseaseMyelin content
2020
Sensory‐evoked gamma frequency oscillations in Alzheimer’s disease patients: Biomarker and therapeutic applications
Hajos M, Harvey B, Mortimore H, Strozewski N, Kolin K, Boasso A, Cimenser A, Marin A, Hajos G, Palumbo R, Spencer K, Malchano Z, Budson A. Sensory‐evoked gamma frequency oscillations in Alzheimer’s disease patients: Biomarker and therapeutic applications. Alzheimer's & Dementia 2020, 16 DOI: 10.1002/alz.043937.Peer-Reviewed Original ResearchAD patientsDisease patientsHealthy young subjectsAlzheimer's disease patientsHealthy subjectsYoung subjectsInter-trial coherenceElderly subjectsVisual stimulationMCI/AD patientsNeuronal network integrityAD-related pathologyDisease-modifying effectsTest/re-test reliabilityHealthy elderly subjectsHz stimulation frequencyHealthy elderly individualsFronto-temporal regionsLight stimulationGamma frequency oscillationsAdverse eventsRe-test reliabilityHz stimulationElderly individualsPatients
2016
50 Hz hippocampal stimulation in refractory epilepsy: Higher level of basal glutamate predicts greater release of glutamate
Cavus I, Widi GA, Duckrow RB, Zaveri H, Kennard JT, Krystal J, Spencer DD. 50 Hz hippocampal stimulation in refractory epilepsy: Higher level of basal glutamate predicts greater release of glutamate. Epilepsia 2016, 57: 288-297. PMID: 26749134, DOI: 10.1111/epi.13269.Peer-Reviewed Original ResearchConceptsBasal glutamate levelsRefractory epilepsyGlutamate effluxBasal glutamateGlutamate levelsElectrical stimulationEpileptic hippocampusGlutamate releaseSeizure groupHz stimulationBrain glutamate releaseHippocampus of patientsStimulation-induced increaseEpilepsy monitoring unitStimulation-induced changesEpileptogenic hippocampusInduced seizuresSeizure inductionSpontaneous seizuresInterictal levelsGlutamate increaseAtrophic hippocampusElectroencephalography evaluationHippocampal stimulationHippocampal electrodes
2015
Δ9-THC Disrupts Gamma (γ)-Band Neural Oscillations in Humans
Cortes-Briones J, Skosnik PD, Mathalon D, Cahill J, Pittman B, Williams A, Sewell RA, Ranganathan M, Roach B, Ford J, D'Souza DC. Δ9-THC Disrupts Gamma (γ)-Band Neural Oscillations in Humans. Neuropsychopharmacology 2015, 40: 2124-2134. PMID: 25709097, PMCID: PMC4613601, DOI: 10.1038/npp.2015.53.Peer-Reviewed Original ResearchConceptsAuditory steady-state responseΔ9-THCHz stimulationIntertrial coherenceDose-related effectsNeural oscillationsNegative Syndrome ScalePsychophysiological alterationsAcute effectsPsychotic disordersAnimal studiesSyndrome ScalePANSS subscalesRecent usersBehavioral effectsTotal scoreEvoked powerCannabinoidsCounterbalanced designTrend levelΓ oscillationsTest dayBand oscillationsHz conditionStimulation
2014
NMDA and AMPA receptors contribute similarly to temporal processing in mammalian retinal ganglion cells
Stafford BK, Manookin MB, Singer JH, Demb JB. NMDA and AMPA receptors contribute similarly to temporal processing in mammalian retinal ganglion cells. The Journal Of Physiology 2014, 592: 4877-4889. PMID: 25217374, PMCID: PMC4259533, DOI: 10.1113/jphysiol.2014.276543.Peer-Reviewed Original ResearchConceptsGanglion cellsNMDAR kineticsOFF alphaMammalian retinal ganglion cellsNMDA-type glutamate receptorsAMPAR-mediated responsesOFF alpha cellsGanglion cell typesRetinal ganglion cellsGuinea pig retinaNMDAR-mediated responsesBipolar cell pathwaysCell typesFast excitatory neurotransmissionGlutamatergic transmissionPresynaptic inhibitionGlutamate releaseSame synapsesSynaptic inhibitionGlutamate receptorsHz stimulationPostsynaptic AMPAExcitatory neurotransmissionSensory neuronsAMPA receptors
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