2017
Progressive 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
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 isoformsHearingDeficiencyReleasePannexin 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
2014
Connexin26 (GJB2) deficiency reduces active cochlear amplification leading to late-onset hearing loss
Zhu Y, Chen J, Liang C, Zong L, Chen J, Jones R, Zhao H. Connexin26 (GJB2) deficiency reduces active cochlear amplification leading to late-onset hearing loss. Neuroscience 2014, 284: 719-729. PMID: 25451287, PMCID: PMC4268423, DOI: 10.1016/j.neuroscience.2014.10.061.Peer-Reviewed Original ResearchConceptsLate-onset hearing lossActive cochlear amplificationDistortion product otoacoustic emissionsHearing lossNonsyndromic hearing lossTherapeutic interventionsProgressive hearing lossHair cell lossPostnatal day 5Cochlear amplificationProduct otoacoustic emissionsConditional knockout miceKnockout miceClinical observationsDay 5Cell lossEndocochlear potentialOtoacoustic emissionsNormal hearingCx26 expressionDeafness mechanismMiceCx26 deficiencyCochleaIntervention
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
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