ArticleBiochemistry and biophysics reports2025
Recombinant human Neuritin protects cochlear ribbon synapses and hearing function via ERK1/2 activation post noise-induced injury.
Article in Biochemistry and biophysics reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
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Authors and funding
10 authors.
Funding
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Abstract
The preservation of synaptic integrity and physiological activity is pivotal for post-traumatic auditory rehabilitation following acoustic overexposure. Neuritin, a neurotrophic factor that facilitates synapse formation, maturation, and enhanced synaptic transmission, is essential for synapse development. In this study, we established a noise-induced cochlear synaptopathy model in CBA/CaJ mice, revealing a temporal association between endogenous Neuritin expression and synaptic density. Furthermore, administration of recombinant Human Neuritin (rhNeuritin) effectively preserves synaptic density in the cochlear basal turn at 7 days and 14 days following noise exposure. Importantly, it preserves the density of functional synapses (represented by overlapping CtBP2 and GluA2 puncta) and synapse function (indicated by ABR I wave amplitudes), thus diminishing the impairment of auditory function. In addition, rhNeuritin reverses the decrease in phosphorylated extracellular signal-regulated protein kinase 1/2 (
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