ArticleExperimental brain research2022
Leveling up: a long-range olivary projection to the medial geniculate without collaterals to the central nucleus of the inferior colliculus in rats.
Article in Experimental brain research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 8 citations in OpenAlex.
- Non-calyceal inputs gate the timing of calyx of Held evoked MNTB output.Communications biology · 2026Article
- Impact of Sinbaglustat on Neurons of the Medial Nucleus of the Trapezoid Body in a Murine Model of Human GJournal of clinical medicine · 2026Article
- Input-Specific Organization of Intrinsic Excitability Expands Coding Capacity of Fast-Spiking Auditory Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Conditional mGluR5 knockout in glutamatergic pathways disrupts the development of excitatory synaptic transmission onto mouse MNTB neurons.Journal of neurophysiology · 2025Article
- Anatomy of superior olivary complex and lateral lemniscus in Etruscan shrew.Scientific reports · 2024Article
- Obliteration of a glycinergic projection to the medial geniculate in an animal model of autism.Frontiers in cellular neuroscience · 2024Article
- Sodium Leak Channel in Glutamatergic Neurons of the Lateral Parabrachial Nucleus Modulates Inflammatory Pain in Mice.International journal of molecular sciences · 2023Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The medial nucleus of the trapezoid body (MNTB) is one of the monaural cell groups situated within the superior olivary complex (SOC), a constellation of brainstem nuclei with numerous roles in hearing. Principal MNTB neurons are glycinergic and express the calcium-binding protein, calbindin (CB). The MNTB receives its main glutamatergic, excitatory input from the contralateral cochlear nucleus via the calyx of Held and converts this into glycinergic inhibition directed toward nuclei in the SOC and the ventral and intermediate nuclei of the lateral lemniscus (VNLL and INLL). Through this inhibition, the MNTB plays essential roles in localization of sound sources and encoding spectral and temporal features of sound. In rats, very few MNTB neurons project to the inferior colliculus. However, our recent study of SOC projections to the auditory thalamus revealed a substantial number of retrogradely labeled MNTB neurons. This observation led us to examine whether the rat MNTB provides a long-range projection to the medial geniculate body (MGB). We examined this possible projection using retrograde and anterograde tract tracing and immunohistochemistry for CB and the glycine receptor. Our results demonstrate a significant projection to the MGB from the ipsilateral MNTB that does not involve a collateral projection to the inferior colliculus.
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