Results 41 to 50 of about 17,899 (265)
Brazilian Journal of Otorhinolaryngology, 2009 The medial olivocochlear tract has efferent control over the outer hair cells, regulating the slow contractions and damping the fast ones. Using ipsilateral, contralateral or bilateral otoacoustic emissions amplitude studies, it is possible to estimate ...
Jerusa Roberta Massola de Oliveira +2 more
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Journal of Neuroscience, 2019 Mammalian hearing sensitivity and frequency selectivity depend on a mechanical amplification process mediated by outer hair cells (OHCs). OHCs are situated within the organ of Corti atop the basilar membrane (BM), which supports sound-evoked traveling ...
James B. Dewey, B. Applegate, J. Oghalai
semanticscholar +1 more source
Two passive mechanical conditions modulate power generation by the outer hair cells.
PLoS Computational Biology, 2017 In the mammalian cochlea, small vibrations of the sensory epithelium are amplified due to active electro-mechanical feedback of the outer hair cells. The level of amplification is greater in the base than in the apex of the cochlea.
Yanju Liu +2 more
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Meis2 Is Required for Inner Ear Formation and Proper Morphogenesis of the Cochlea
Frontiers in Cell and Developmental Biology, 2021 Meis genes have been shown to control essential processes during development of the central and peripheral nervous system. Here we have explored the roles of the Meis2 gene during vertebrate inner ear induction and the formation of the cochlea.
María Beatriz Durán Alonso +10 more
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Sox9 Inhibits Cochlear Hair Cell Fate by Upregulating Hey1 and HeyL Antagonists of Atoh1
Cells, 2023 It is widely accepted that cell fate determination in the cochlea is tightly controlled by different transcription factors (TFs) that remain to be fully defined. Here, we show that Sox9, initially expressed in the entire sensory epithelium of the cochlea,
Mona Veithen +8 more
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Mouse Embryonic Fibroblasts-Derived Extracellular Matrix Facilitates Expansion of Inner Ear-Derived Cells [PDF]
Cell Journal, 2023 Objective: Previous reports showed that mouse embryonic fibroblasts (MEFs) could support pluripotent stem cell selfrenewaland maintain their pluripotency.
Junming Zhang +4 more
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Microstructural interactions contribute to the hotspot in the living cochlea
Current Research in Neurobiology, 2022 The mechanism of the active cochlea relies on a complex interaction between microstructures in the organ of Corti. A significant longitudinal vibration “hotspot” was recently observed in the high-frequency region of the living gerbil cochlea between the ...
Junpei Liu +5 more
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Fas Ligand Expression in the Organ of Corti [PDF]
Audiology and Neurotology, 2003 We have previously demonstrated by FACS analysis and histochemistry that Fas ligand (FasL) increases on cochlear cell surfaces after immune response or stimulation with γ-interferon (IFN-γ). To determine whether the appearance of FasL on cochlear cell membranes is related to gene expression or to posttranslational events, cochlear cells were treated ...
Bodmer, Daniel +4 more
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Journal of Neurophysiology, 2018 There is indirect evidence that the mammalian cochlea in the low-frequency apical and the more commonly studied high-frequency basal regions function in fundamentally different ways.
W. Dong +5 more
semanticscholar +1 more source
Three-Dimensional Motion of the Organ of Corti [PDF]
Biophysical Journal, 2000 The vibration of the organ of Corti, a three-dimensional micromechanical structure that incorporates the sensory cells of the hearing organ, was measured in three mutually orthogonal directions. This was achieved by coupling the light of a laser Doppler vibrometer into the side arm of an epifluorescence microscope to measure velocity along the optical ...
Werner Hemmert +2 more
openaire +3 more sources