hearing/vestibular/ear
• young mice exhibit increased hearing threshold at low and high frequency stimulation with reduced signal strength and waviness of waveform compared with wild-type mice
• aged mice exhibit increased hearing threshold for click, noise and pure tone stimuli 2 to 8 kHz compared with wild-type mice
• however, mice exhibit normal hearing threshold with click stimuli or multi-frequency click stimulus
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• at 1 to 2 months, mice stimulated with 50 db sound pressure level (L1) exhibit reduced 2f1 to f2 distortion product otoacoustic emission amplitude compared with wild-type mice
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• aged mice exhibit reduced threshold compared with wild-type mice
• however, mice exhibit normal hearing threshold with click stimuli or multi-frequency click stimulus
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• aged mice exhibit increased hearing threshold for click, noise and pure tone stimuli 2 to 8 kHz compared with wild-type mice
• however, mice exhibit normal vulnerability to noise exposure and age-related progression of hearing loss
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Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
autosomal dominant nonsyndromic deafness 4A | DOID:0110573 |
OMIM:600652 |
J:187537 |