早期聽力缺損對小鼠橄欖蝸外運動神經元形態的影響

// Effects of early hearing deficits on olivocochlear efferent neuron morphology in mice

本研究追蹤小鼠發育性聽損的聽覺中樞神經元退化情形｜發現先天性失聰小鼠隨年齡流失內外側橄欖耳蝸神經元，但逐漸性聽損小鼠並無顯著流失｜結果顯示持續的傳入神經訊號對維持此類神經元關鍵，且其保存暗示聽覺腦幹迴路具有功能可塑性，具實際治療啟示。

// This study examined how the loss of auditory efferent neurons relates to hearing loss by tracking olivocochlear neuron degeneration in mouse models with developmental hearing impairments. Using cochlear function tests and neuronal tracing in different mouse strains, they found that congenital deaf mice showed age-related loss of medial and lateral olivocochlear neurons, while mice with progressive hearing loss did not. The findings suggest that continuous afferent input is important to maintain these neurons, and their retention despite hearing loss indicates possible functional plasticity in auditory brainstem circuits.

Published 2026年6月30日