Results 21 to 30 of about 36,422 (226)

Cellular glutathione content in the organ of Corti and its role during ototoxicity. [PDF]

open access: yes, 2015
Glutathione (GSH) is the major scavenger of reactive oxygen species (ROS) inside cells. We used live confocal imaging in order to clarify the role of GSH in the biology of the organ of Corti, the sensory epithelium of the cochlea, before, during and ...
Duchen, MR, Gale, JE, Majumder, P
core   +1 more source

Cellular cartography of the organ of Corti based on optical tissue clearing and machine learning

open access: yeseLife, 2019
The highly organized spatial arrangement of sensory hair cells in the organ of Corti is essential for inner ear function. Here, we report a new analytical pipeline, based on optical clearing of tissue, for the construction of a single-cell resolution map
Shinji Urata   +7 more
doaj   +1 more source

No Protective Effects of Hair Cells or Supporting Cells in Ototoxically Deafened Guinea Pigs upon Administration of BDNF

open access: yesBrain Sciences, 2021
We investigated whether treatment with brain-derived neurotrophic factor (BDNF), which is known to protect spiral ganglion cells (SGCs), could also protect hair cells (HCs) and supporting cells (SCs) in the organ of Corti of a guinea pig model of ...
Annamaria Tisi   +5 more
doaj   +1 more source

Compartmentalized and signal-selective gap junctional coupling in the hearing cochlea [PDF]

open access: yes, 2006
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

open access: yesCell Reports, 2015
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

Bucillamine prevents cisplatin-induced ototoxicity through induction of glutathione and antioxidant genes. [PDF]

open access: yes, 2015
Bucillamine is used for the treatment of rheumatoid arthritis. This study investigated the protective effects of bucillamine against cisplatin-induced damage in auditory cells, the organ of Corti from postnatal rats (P2) and adult Balb/C mice.
Choe, Seong-Kyu   +11 more
core   +2 more sources

Retardation of cochlear maturation and impaired hair cell function caused by deletion of all known thyroid hormone receptors [PDF]

open access: yes, 2001
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
core   +1 more source

Age impact on the eferent system actitivies in cochlear mechanical properties in normal hearing individuals Influência da idade na atividade do sistema eferente nas propriedades mecânicas da cóclea de ouvintes normais

open access: yesBrazilian 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
doaj   +1 more source

Type II spiral ganglion afferent neurons drive medial olivocochlear reflex suppression of the cochlear amplifier. [PDF]

open access: yes, 2015
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.

open access: yesPLoS 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
doaj   +1 more source

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