Compartmentalized and signal-selective gap junctional coupling in the hearing cochlea [PDF]
Gap junctional intercellular communication (GJIC) plays a major role in cochlear function. Recent evidence suggests that connexin 26 (Cx26) and Cx30 are the major constituent proteins of cochlear gap junction channels, possibly in a unique heteromeric ...
Forge, A, Jagger, DJ
core +1 more source
MicroRNA-124 Regulates Cell Specification in the Cochlea through Modulation of Sfrp4/5
The organ of Corti, the auditory organ of the mammalian inner ear, contains sensory hair cells and supporting cells that arise from a common sensory progenitor. The molecular bases allowing the specification of these progenitors remain elusive.
Aurélia Huyghe +9 more
doaj +1 more source
Retardation of cochlear maturation and impaired hair cell function caused by deletion of all known thyroid hormone receptors [PDF]
The deafness caused by early onset hypothyroidism indicates that thyroid hormone is essential for the development of hearing. We investigated the underlying roles of the TRa1 and TRß thyroid hormone receptors in the auditory system using receptor ...
Forrest, Douglas +8 more
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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
doaj +1 more source
FM1-43 reveals membrane recycling in adult inner hair cells of the mammalian cochlea [PDF]
Neural transmission of complex sounds demands fast and sustained rates of synaptic release from the primary cochlear receptors, the inner hair cells (IHCs). The cells therefore require efficient membrane recycling.
Ashmore, JF +2 more
core +1 more source
Type II spiral ganglion afferent neurons drive medial olivocochlear reflex suppression of the cochlear amplifier. [PDF]
The dynamic adjustment of hearing sensitivity and frequency selectivity is mediated by the medial olivocochlear efferent reflex, which suppresses the gain of the 'cochlear amplifier' in each ear.
Cederholm, Jennie ME +7 more
core +2 more sources
Two passive mechanical conditions modulate power generation by the outer hair cells.
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
doaj +1 more source
Meis2 Is Required for Inner Ear Formation and Proper Morphogenesis of the Cochlea
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
doaj +1 more source
Sox9 Inhibits Cochlear Hair Cell Fate by Upregulating Hey1 and HeyL Antagonists of Atoh1
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
doaj +1 more source
Mouse Embryonic Fibroblasts-Derived Extracellular Matrix Facilitates Expansion of Inner Ear-Derived Cells [PDF]
Objective: Previous reports showed that mouse embryonic fibroblasts (MEFs) could support pluripotent stem cell selfrenewaland maintain their pluripotency.
Junming Zhang +4 more
doaj +1 more source

