ArticleProceedings of the National Academy of Sciences of the United States of America2025
GABAergic synapses between auditory efferent neurons and type II spiral ganglion afferent neurons in the mouse cochlea.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Acbd7 is essential for preserving hair cell-mediated auditory and vestibular function.Experimental & molecular medicine · 2026Article
- A computational model of the mammalian auditory periphery with a closed-loop medial olivocochlear reflex simulating across-channel efferent gain control.The Journal of the Acoustical Society of America · 2026Article
- Spontaneous Calcium Signalling in the Developing Mammalian Cochlea.Journal of the Association for Research in Otolaryngology : JARO · 2026Review
- Subtype-Specific Vulnerability of Spiral Ganglion Neurons in Sensorineural Hearing Loss Across the Lifespan.Brain sciences · 2026Review
- Article
- Co-release of GABA and ACh from Medial Olivocochlear Neurons as a Fine Regulatory Mechanism of Cochlear Efferent Inhibition.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- GABAergic synapses between auditory efferent neurons and type II spiral ganglion afferent neurons in the mouse cochlea.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Co-release of GABA and ACh from medial olivocochlear neurons fine tunes cochlear efferent inhibition.bioRxiv : the preprint server for biology · 2024Article
- Fast Inhibition Slows and Desynchronizes Mouse Auditory Efferent Neuron Activity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
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Abstract
Cochlear outer hair cells (OHCs) are electromotile and implicated in amplification of responses to sound that enhance sound sensitivity and frequency tuning. They send afferent information through glutamatergic synapses onto type II spiral ganglion neurons (SGNs). These synapses are weaker than those from cochlear inner hair cells onto type I SGN, suggesting that type II SGNs respond only to intense sound levels. OHCs also receive efferent innervation from medial olivocochlear (MOC) neurons. MOC neurons are cholinergic yet inhibit OHCs due to the functional coupling of alpha9/alpha10 nicotinic acetylcholine receptors (nAChRs) to calcium-activated SK potassium channels. The resulting hyperpolarization reduces OHC activity-evoked electromotility and is implicated in cochlear gain control, protection against acoustic trauma, and attention. MOC neurons also label for markers of GABA and GABA synthesis. GABA
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