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  • Title: Time sequence of degeneration pattern of the organ of Corti after acoustic overstimulation. A transmission electron microscopy study.
    Author: Fredelius L.
    Journal: Acta Otolaryngol; 1988; 106(5-6):373-85. PubMed ID: 3207005.
    Abstract:
    Female pigmented guinea pigs were exposed to a 3.85 kHz pure tone of 120 dB SPL for 22.5 min. The exposed animals were sacrificed after varying post-exposure intervals (5 min, 4 and 24 h, 5 and 28 days). Transmission electron microscopical examination was performed after serial-sectioning in areas of maximum damage and both basal to and apical to this region. By serial-sectioning, the degradation pattern of the individual cell structures in the organ of Corti could be studied in relation to post-exposure time and proximity to the well-demarcated area of maximum damage in the organ of Corti. The results provide further information on the non-reversible changes leading to degeneration and loss of sensory and supportive structures in the organ of Corti.
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