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
2017
Hypothesis of K+-Recycling Defect Is Not a Primary Deafness Mechanism for Cx26 (GJB2) Deficiency
Zhao H. Hypothesis of K+-Recycling Defect Is Not a Primary Deafness Mechanism for Cx26 (GJB2) Deficiency. Frontiers In Molecular Neuroscience 2017, 10: 162. PMID: 28603488, PMCID: PMC5445178, DOI: 10.3389/fnmol.2017.00162.Peer-Reviewed Original ResearchHearing lossDeafness mechanismCx26 deficiencyInner ear gap junctionsHair cell degenerationNonsyndromic hearing lossDisruption of permeabilityCongenital deafnessCell degenerationHair cellsHair cell excitationHereditary deafnessCell excitationConnexin26 MutationsGap junctional channelsGap junctionsDevelopmental disordersDeficiencyDeafnessExtracellular spaceReview articleJunctional channelsDegenerationProgressive age-dependence and frequency difference in the effect of gap junctions on active cochlear amplification and hearing
Zong L, Chen J, Zhu Y, Zhao H. Progressive age-dependence and frequency difference in the effect of gap junctions on active cochlear amplification and hearing. Biochemical And Biophysical Research Communications 2017, 489: 223-227. PMID: 28552523, PMCID: PMC5555358, DOI: 10.1016/j.bbrc.2017.05.137.Peer-Reviewed Original ResearchConceptsActive cochlear amplificationHearing lossCochlear amplificationMice ageGap junctionsAge-related hearing lossSignificant hearing lossPostnatal day 25Cochlear gap junctionsAuditory sensory hair cellsSensory hair cellsNonsyndromic hearing lossHigh incidenceOuter pillar cellsDay 25Deiters' cellsConnexin expressionHair cellsConnexin 26Outer hair cell electromotilityHair cell electromotilityPillar cellsPrevious reportsCochleaAge
2016
Expression and function of pannexins in the inner ear and hearing
Zhao H. Expression and function of pannexins in the inner ear and hearing. BMC Molecular And Cell Biology 2016, 17: 16. PMID: 27229462, PMCID: PMC4896268, DOI: 10.1186/s12860-016-0095-7.Peer-Reviewed Original ResearchConceptsFunction of pannexinsAuditory sensory hair cellsDistinct expression patternsCell apoptotic pathwaysGap junction genesSensory hair cellsGap junction proteinGene familyATP releaseExpression patternsApoptotic pathwayEndocochlear potentialJunction genesPannexinsActive cochlear amplificationPannexin expressionLateral wallCochlear lateral wallJunction proteinsOrgan of CortiHair cellsCritical roleCochlear amplificationIsoformsStria vascularis
2015
Pannexin1 channels dominate ATP release in the cochlea ensuring endocochlear potential and auditory receptor potential generation and hearing
Chen J, Zhu Y, Liang C, Chen J, Zhao H. Pannexin1 channels dominate ATP release in the cochlea ensuring endocochlear potential and auditory receptor potential generation and hearing. Scientific Reports 2015, 5: 10762. PMID: 26035172, PMCID: PMC4451810, DOI: 10.1038/srep10762.Peer-Reviewed Original ResearchConceptsCochlear lateral wallATP releaseHearing lossCochlear microphonicsPotential generationReceptor potentialReceptor potential generationHair cell lossLateral wallNon-junctional channelsEP generationDeficient miceCell lossEndocochlear potentialHair cellsPathological processesCochleaPhysiological conditionsJunction genesGap junction genesConnexin hemichannelsConnexin isoformsHearingDeficiencyReleaseCellular and Deafness Mechanisms Underlying Connexin Mutation-Induced Hearing Loss – A Common Hereditary Deafness
Wingard J, Zhao H. Cellular and Deafness Mechanisms Underlying Connexin Mutation-Induced Hearing Loss – A Common Hereditary Deafness. Frontiers In Cellular Neuroscience 2015, 9: 202. PMID: 26074771, PMCID: PMC4448512, DOI: 10.3389/fncel.2015.00202.Peer-Reviewed Original ResearchHearing lossPathological changesDeafness mechanismCongenital deafnessActive cochlear amplificationProgressive hearing lossDetailed cellular mechanismsCochlear hair cellsHair cell degenerationHereditary deafnessConnexin 26 mutationsDistinct pathological changesNon-syndromic hearing lossProfound congenital deafnessAuditory phenotypeHigh incidenceTherapeutic strategiesGap junctional proteinCell degenerationConnexin expressionHair cellsDeafnessCellular mechanismsLate childhoodCx26 mutationsPannexin 1 deficiency can induce hearing loss
Zhao H, Zhu Y, Liang C, Chen J. Pannexin 1 deficiency can induce hearing loss. Biochemical And Biophysical Research Communications 2015, 463: 143-147. PMID: 26002464, PMCID: PMC4464954, DOI: 10.1016/j.bbrc.2015.05.049.Peer-Reviewed Original ResearchConceptsDistortion product otoacoustic emissionsHearing lossAuditory brainstem response recordingsProgressive hearing lossProduct otoacoustic emissionsHigh incidenceCell degenerationOtoacoustic emissionsGap junction proteinAcoustic stimulationCell apoptotic pathwaysHair cellsResponse recordingsGene mutationsJunction proteinsExtensive expressionCochleaActive cochlear mechanicsGap junctionsApoptotic pathwayDeficiencyHearingCritical roleCochlear mechanics
2013
Active cochlear amplification is dependent on supporting cell gap junctions
Zhu Y, Liang C, Chen J, Zong L, Chen G, Zhao H. Active cochlear amplification is dependent on supporting cell gap junctions. Nature Communications 2013, 4: 1786. PMID: 23653198, PMCID: PMC3675877, DOI: 10.1038/ncomms2806.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAuditory ThresholdCochlear Microphonic PotentialsConnexin 26ConnexinsEvoked Potentials, Auditory, Brain StemGap JunctionsGene DeletionGene TargetingHair Cells, Auditory, OuterHearing LossLabyrinth Supporting CellsMiceMice, KnockoutMolecular Motor ProteinsNonlinear DynamicsOtoacoustic Emissions, SpontaneousSpiral GanglionConceptsActive cochlear amplificationOuter hair cellsCell gap junctionsHearing lossCochlear amplificationHair cellsGap junctionsDistortion product otoacoustic emissionsOuter hair cell electromotilityHair cell electromotilitySevere hearing lossProduct otoacoustic emissionsShorter outer hair cellsHair-bundle movementsOuter pillar cellsLeftward shiftOtoacoustic emissionsAcoustic stimulationDeiters' cellsHearing sensitivityConnexin 26Active cochlear mechanicsNovel findingsPillar cellsBundle movement
2012
Cell degeneration is not a primary causer for Connexin26 (GJB2) deficiency associated hearing loss
Liang C, Zhu Y, Zong L, Lu G, Zhao H. Cell degeneration is not a primary causer for Connexin26 (GJB2) deficiency associated hearing loss. Neuroscience Letters 2012, 528: 36-41. PMID: 22975134, PMCID: PMC3467974, DOI: 10.1016/j.neulet.2012.08.085.Peer-Reviewed Original ResearchConceptsHair cell lossAuditory brainstem responseCell degenerationCell lossNeuron degenerationPostnatal developmentCx26 deficiencyCochlear hair cell lossSpiral ganglion neuron degenerationDevelopment disordersCx26 knockout miceHair cellsHair cell functionOuter hair cellsSG neuronsNonsyndromic hearing lossKO miceBrainstem responseCochlear cellsHearing lossBasal turnMouse modelKnockout miceCongenital deafnessSignificant degeneration
2008
Identification and characterization of pannexin expression in the mammalian cochlea
Wang X, Streeter M, Liu Y, Zhao H. Identification and characterization of pannexin expression in the mammalian cochlea. The Journal Of Comparative Neurology 2008, 512: 336-346. PMID: 19009624, PMCID: PMC2630187, DOI: 10.1002/cne.21898.Peer-Reviewed Original ResearchConceptsSpiral ganglion neuronsCochlear lateral wallDiffuse cytoplasmic labelingMammalian cochleaType II fibrocytesOrgan of CortiBlood vessel cellsOuter sulcus cellsWestern blot analysisDistinct cellular distributionGanglion neuronsPolymerase chain reactionGap junctional proteinRat cochleaInterdental cellsStria vascularisPunctate labelingDeiters' cellsSpiral limbusImmunofluorescent stainingCochlear boneHair cellsBasal cellsSpiral prominencePannexin expression
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 distribution
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 channels
2001
Chlorpromazine 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
Voltage- 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