2021
Efferent neurons control hearing sensitivity and protect hearing from noise through the regulation of gap junctions between cochlear supporting cells
Zhao H, Liu L, Yu N, Zhu Y, Mei L, Chen J, Liang C. Efferent neurons control hearing sensitivity and protect hearing from noise through the regulation of gap junctions between cochlear supporting cells. Journal Of Neurophysiology 2021, 127: 313-327. PMID: 34907797, PMCID: PMC8759971, DOI: 10.1152/jn.00468.2021.Peer-Reviewed Original ResearchConceptsOuter hair cellsActive cochlear amplificationCochlear efferent systemDistortion product otoacoustic emissionsEfferent systemEfferent pathwaysHearing sensitivityMedial olivocochlear efferent fibersPresynaptic vesicular acetylcholine transportersGap junctionsOlivocochlear efferent fibersHair cellsApplication of acetylcholineCochlear supporting cellsProtection of hearingVesicular acetylcholine transporterActive cochlear amplifierCochlear amplificationPostsynaptic ACh receptorsProduct otoacoustic emissionsMOC efferent systemHair cell activityEfferent nervesEfferent inhibitionEfferent fibers
2012
ATP activates P2X receptors to mediate gap junctional coupling in the cochlea
Zhu Y, Zhao H. ATP activates P2X receptors to mediate gap junctional coupling in the cochlea. Biochemical And Biophysical Research Communications 2012, 426: 528-532. PMID: 22982314, PMCID: PMC3471361, DOI: 10.1016/j.bbrc.2012.08.119.Peer-Reviewed Original ResearchConceptsP2X receptorsGap junctional couplingCochlear gap junctionsP2Y receptor agonist UTPGap junctionsJunctional couplingP2X receptor antagonistMetabotropic purinergic receptorsReceptor agonist UTPStimulation of ATPPhysiological levelsReceptor antagonistP2Y receptorsPurinergic controlPurinergic receptorsBenzoylbenzoyl-ATPNoise stressReceptorsIonic homeostasisCochleaDisulfonic acidCritical roleIntercellular channelsATPCells
2009
Modulation of Outer Hair Cell Electromotility by Cochlear Supporting Cells and Gap Junctions
Yu N, Zhao H. Modulation of Outer Hair Cell Electromotility by Cochlear Supporting Cells and Gap Junctions. PLOS ONE 2009, 4: e7923. PMID: 19936276, PMCID: PMC2775161, DOI: 10.1371/journal.pone.0007923.Peer-Reviewed Original Research
2008
Cellular characterization of Connexin26 and Connnexin30 expression in the cochlear lateral wall
Liu Y, Zhao H. Cellular characterization of Connexin26 and Connnexin30 expression in the cochlear lateral wall. Cell And Tissue Research 2008, 333: 395. PMID: 18581144, PMCID: PMC2548271, DOI: 10.1007/s00441-008-0641-5.Peer-Reviewed Original ResearchPrestin up-regulation in chronic salicylate (aspirin) administration: An implication of functional dependence of prestin expression
Yu N, Zhu M, Johnson B, Liu Y, Jones R, Zhao H. Prestin up-regulation in chronic salicylate (aspirin) administration: An implication of functional dependence of prestin expression. Cellular And Molecular Life Sciences 2008, 65: 2407-2418. PMID: 18560754, PMCID: PMC2548279, DOI: 10.1007/s00018-008-8195-y.Peer-Reviewed Original ResearchConceptsLong-term administrationPrestin expressionSalicylate administrationChronic salicylate administrationDistortion product otoacoustic emissionsNuclear transcription factors c-fosProduct otoacoustic emissionsTranscription factor c-FosOHC electromotilityHearing lossNF-κBAcute inhibitionOtoacoustic emissionsAdministrationC-fosProtein levelsOuter hair cell electromotilityHair cell electromotilityEgr-1Incremental increaseExpressionSalicylateElectromotilityFour-foldATP activates P2x receptors and requires extracellular Ca++ participation to modify outer hair cell nonlinear capacitance
Yu N, Zhao H. ATP activates P2x receptors and requires extracellular Ca++ participation to modify outer hair cell nonlinear capacitance. Pflügers Archiv - European Journal Of Physiology 2008, 457: 453-461. PMID: 18491132, PMCID: PMC5531446, DOI: 10.1007/s00424-008-0522-5.Peer-Reviewed Original ResearchMeSH Keywords4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidAdenosine TriphosphateAnimalsCalciumChelating AgentsEgtazic AcidElectric CapacitanceGuinea PigsHair Cells, Auditory, OuterMembrane PotentialsPatch-Clamp TechniquesPotassiumPurinergic P2 Receptor AntagonistsPyridoxal PhosphateReceptors, Purinergic P2Signal TransductionSodiumSuraminTime FactorsUridine TriphosphateConceptsP2X receptorsATP effectP2Y receptor agonistsMetabotropic purinergic receptorsActive cochlear amplifierEffect of ATPReceptor agonistHearing functionP2Y receptorsPurinergic receptorsDisulfonic acidImportant mediatorReceptorsCell functionOuter hair cell electromotilityHair cell electromotilityIonotropic purinergicCochlear amplifierOHC electromotilityTetraacetic acidATPAgonistsPurinergicVoltage dependenceSuraminHemichannel-Mediated Inositol 1,4,5-Trisphosphate (IP3) Release in the Cochlea: A Novel Mechanism of IP3 Intercellular Signaling
Gossman D, Zhao H. Hemichannel-Mediated Inositol 1,4,5-Trisphosphate (IP3) Release in the Cochlea: A Novel Mechanism of IP3 Intercellular Signaling. Cell Communication & Adhesion 2008, 15: 305-315. PMID: 18979296, PMCID: PMC5543712, DOI: 10.1080/15419060802357217.Peer-Reviewed Original ResearchConceptsIntercellular signalingLong-distance intercellular communicationImportant second messengerGap junction channelsGap junction hemichannel blockerGap junction hemichannelsCochlear sensory epitheliumCassette transportersSecond messengerIntercellular communicationDeafness mutantsJunction channelsCell surfaceExtracellular mediatorsSignalingNovel mechanismSensory epitheliumHemichannelsExtracellular pathwaysTrisphosphateInositolFluorescence polarization techniqueHemichannel blockersImportant roleExtracellular application
2006
Distinct and gradient distributions of connexin26 and connexin30 in the cochlear sensory epithelium of guinea pigs
Zhao H, Yu N. Distinct and gradient distributions of connexin26 and connexin30 in the cochlear sensory epithelium of guinea pigs. The Journal Of Comparative Neurology 2006, 499: 506-518. PMID: 16998915, PMCID: PMC2553046, DOI: 10.1002/cne.21113.Peer-Reviewed Original ResearchConceptsCochlear sensory epitheliumSensory epitheliumGuinea pigsHensen's cellsDeiters' cellsSpiral ganglion neuronsPillar cellsExpression of Cx26Auditory sensory epitheliumDistinct cellular expressionGanglion neuronsCochlear apexCx26 labelingCell bodiesCx26 expressionImmunofluorescent stainingEpitheliumHair cellsCellular expressionCx30Dense labelingClaudius cellsCell preparationsPredominant isoformCellular distributionEffects of intense noise exposure on the outer hair cell plasma membrane fluidity
Chen G, Zhao H. Effects of intense noise exposure on the outer hair cell plasma membrane fluidity. Hearing Research 2006, 226: 14-21. PMID: 16870367, DOI: 10.1016/j.heares.2006.06.007.Peer-Reviewed Original ResearchPrestin is expressed on the whole outer hair cell basolateral surface
Yu N, Zhu M, Zhao H. Prestin is expressed on the whole outer hair cell basolateral surface. Brain Research 2006, 1095: 51-58. PMID: 16709400, PMCID: PMC2548272, DOI: 10.1016/j.brainres.2006.04.017.Peer-Reviewed Original Research
2005
Gap junctional hemichannel-mediated ATP release and hearing controls in the inner ear
Zhao H, Yu N, Fleming C. Gap junctional hemichannel-mediated ATP release and hearing controls in the inner ear. Proceedings Of The National Academy Of Sciences Of The United States Of America 2005, 102: 18724-18729. PMID: 16344488, PMCID: PMC1317927, DOI: 10.1073/pnas.0506481102.Peer-Reviewed Original ResearchConceptsHemichannel-mediated ATP releaseHair cellsGap junctional blockerActive cochlear amplifierAuditory sensory hair cellsSensory hair cellsEffect of ATPP2 receptorsExtracellular Ca2OHC electromotilityCochlear sensitivityATP releaseConnexin gap junctionsExtracellular ATPConnexin expressionInner earImmunofluorescent stainingHearing controlsHearing sensitivityOuter hair cell electromotilityCochleaHair cell electromotilityConnexin hemichannelsCochlear fluidsGap junctional channelsConnexin26 is responsible for anionic molecule permeability in the cochlea for intercellular signalling and metabolic communications
Zhao H. Connexin26 is responsible for anionic molecule permeability in the cochlea for intercellular signalling and metabolic communications. European Journal Of Neuroscience 2005, 21: 1859-1868. PMID: 15869481, PMCID: PMC2548270, DOI: 10.1111/j.1460-9568.2005.04031.x.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAffinity LabelsAnimalsAnionsAnti-Inflammatory AgentsCalciumCationsCell CommunicationCell CountCell Membrane PermeabilityCells, CulturedCochleaConnexin 26ConnexinsDose-Response Relationship, DrugEnzyme InhibitorsFluorescent DyesGap JunctionsGlycyrrhetinic AcidGuinea PigsIntracellular MembranesPlatelet Aggregation InhibitorsProadifenPyridoxal PhosphateSpectrometry, FluorescenceTime FactorsConceptsCharge selectivityLarge pore sizeCationic fluorescent dyeIntercellular signalingAnionic dyesDye sizeGap junctionsMetabolic communicationPore sizeMolecule permeabilityMolecular permeabilitySelectivityEnergy moleculesCationic probePassage of ionsFluorescent dyeGap junctional permeabilityMoleculesCochlear sensory epitheliumDyeCochlear gap junctions
2004
Paradoxical Enhancement of Active Cochlear Mechanics in Long-Term Administration of Salicylate
Huang Z, Luo Y, Wu Z, Tao Z, Jones R, Zhao H. Paradoxical Enhancement of Active Cochlear Mechanics in Long-Term Administration of Salicylate. Journal Of Neurophysiology 2004, 93: 2053-2061. PMID: 15590729, DOI: 10.1152/jn.00959.2004.Peer-Reviewed Original ResearchConceptsDistortion product otoacoustic emissionsLong-term administrationOtotoxic mechanismsLong-term salicylate administrationAwake guinea pigsReversible hearing lossSalicylate-induced tinnitusActive cochlear mechanicsProduct otoacoustic emissionsInitial normal levelsDistortion productsSalicylate administrationSodium salicylateDaily injectionsSaline injectionHearing functionHearing lossCubic distortion productSingle injectionControl animalsOHC levelsCommon drugsSalicylate treatmentAcoustic emissionRate of recovery
2003
Excitation of fluorescent dyes inactivates the outer hair cell integral membrane motor protein prestin and betrays its lateral mobility
Santos-Sacchi J, Zhao HB. Excitation of fluorescent dyes inactivates the outer hair cell integral membrane motor protein prestin and betrays its lateral mobility. Pflügers Archiv - European Journal Of Physiology 2003, 446: 617-622. PMID: 12783229, DOI: 10.1007/s00424-003-1053-8.Peer-Reviewed Original Research
2001
Long-term natural culture of cochlear sensory epithelia of guinea pigs
Zhao H. Long-term natural culture of cochlear sensory epithelia of guinea pigs. Neuroscience Letters 2001, 315: 73-76. PMID: 11711218, DOI: 10.1016/s0304-3940(01)02357-6.Peer-Reviewed Original ResearchConceptsCochlear sensory epitheliumCochlear sensory epithelial cellsSensory epithelial cellsSensory epitheliumHair cell markersCochlear cell lineIsolated cell clonesCochlear cellsEpithelial morphotypeGenetic manipulationProtein ZO-1Genetic studiesValuable cell sourceCulture cellsGuinea pigsCell linesEpithelial cellsZO-1Tight junctionsCell markersNatural cultureCell sourceCellsCell clonesCulture mediumChlorpromazine Alters Outer Hair Cell Electromotility
Lue A, Zhao H, Brownell W. Chlorpromazine Alters Outer Hair Cell Electromotility. Otolaryngology 2001, 125: 71-76. PMID: 11458218, DOI: 10.1067/mhn.2001.116446.Peer-Reviewed Original ResearchConceptsOuter hair cellsHair cellsDose-dependent depolarizationGuinea pig outer hair cellsEffect of chlorpromazineElectromotile responseAntipsychotic medicationChlorpromazine treatmentHearing thresholdsLarge dosesCochlear sensitivityOtoacoustic emissionsInner earChlorpromazineOuter Hair Cell ElectromotilityHair cell electromotilityOHC electromotilityMembrane voltageRecording conditionsCellsMedicationsResponseElectromotility
2000
Directional rectification of gap junctional voltage gating between Dieters cells in the inner ear of guinea pig
Zhao H. Directional rectification of gap junctional voltage gating between Dieters cells in the inner ear of guinea pig. Neuroscience Letters 2000, 296: 105-108. PMID: 11108992, DOI: 10.1016/s0304-3940(00)01626-8.Peer-Reviewed Original ResearchVoltage Gating of Gap Junctions in Cochlear Supporting Cells: Evidence for Nonhomotypic Channels
Zhao H, Santos-Sacchi J. Voltage Gating of Gap Junctions in Cochlear Supporting Cells: Evidence for Nonhomotypic Channels. The Journal Of Membrane Biology 2000, 175: 17-24. PMID: 10811964, DOI: 10.1007/s002320001051.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsElectrophysiologyGap JunctionsGuinea PigsIon Channel GatingIon ChannelsOrgan of CortiVoltage- and Tension-Dependent Lipid Mobility in the Outer Hair Cell Plasma Membrane
Oghalai J, Zhao H, Kutz J, Brownell W. Voltage- and Tension-Dependent Lipid Mobility in the Outer Hair Cell Plasma Membrane. Science 2000, 287: 658-661. PMID: 10650000, PMCID: PMC1976274, DOI: 10.1126/science.287.5453.658.Peer-Reviewed Original ResearchConceptsCell plasma membranePlasma membraneMembrane tensionOuter hair cell plasma membraneLipid-protein interactionsMembrane fluidityForce-generating motorsMammalian hearingLipid mobilityLipid lateral diffusionHair cellsOuter hair cellsCell depolarizationExquisite sensitivityMembraneLateral diffusionMedium osmolalityHyposmotic challengeCellsDynamic changesTransmembraneElectromotilityFluidityVoltage dependenceDrugs results
1999
Auditory collusion and a coupled couple of outer hair cells
Zhao H, Santos-Sacchi J. Auditory collusion and a coupled couple of outer hair cells. Nature 1999, 399: 359-362. PMID: 10360573, DOI: 10.1038/20686.Peer-Reviewed Original Research