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Related Concept Videos

Auditory Pathway01:15

Auditory Pathway

Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...

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Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss
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Published on: January 25, 2016

[Presbyacusis: pathogenesis and treatment].

Michael Reiss1, Gilfe Reiss

  • 1HNO-Klinik, Heinrich Zille Str 13, 01445 Radebeul, Gilfe Reiss, Klinik und Poliklinik for Neurochirurgie, Universitätsklinikum Dresden. michael.reiss@elblandkliniken.de

Medizinische Monatsschrift Fur Pharmazeuten
|June 27, 2009
PubMed
Summary
This summary is machine-generated.

Age-related hearing loss, or presbycusis, stems from cochlear degeneration and injury, not just aging. Early hearing aid fitting and potential therapies like antioxidants offer hope for managing this common condition.

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Area of Science:

  • Gerontology
  • Otolaryngology
  • Cell Biology

Context:

  • Hearing loss, or presbycusis, is a prevalent condition in older adults.
  • It arises from complex sensorineural injury, particularly cochlear degeneration.
  • Exogenous factors like noise exposure and obesity exacerbate age-related hearing decline.

Purpose:

  • To elucidate the pathophysiological mechanisms underlying age-related hearing loss.
  • To identify key factors contributing to cochlear degeneration and hair cell damage.
  • To explore current and future therapeutic strategies for presbycusis.

Summary:

  • Presbycusis results from cochlear degeneration, involving oxidative stress, mitochondrial DNA mutations, and cell death.
  • Hypoxia/ischemia and reactive species formation are critical pathomechanisms.
  • Timely bilateral hearing aid fitting is crucial for communication and preventing social isolation.

Impact:

  • Highlights the multifactorial nature of presbycusis, extending beyond simple aging.
  • Discusses promising therapeutic avenues including antioxidants, caloric restriction, SOD2 modulation, and hair cell regeneration.
  • Emphasizes the importance of early intervention with hearing aids to mitigate communication deficits and social isolation.