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[Vocal fold structure and speech pathologies].

C Finck1

  • 1CHU Sart Tilman, Service d'Oto-rhino-laryngologie et de Chirurgie Cervico-faciale, Liège, Belgique. camille.finck@chu.ulg.ac.be

Revue De Laryngologie - Otologie - Rhinologie
|May 9, 2006
PubMed
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The extracellular matrix (ECM) in Reinke's space is crucial for vocal fold vibration. Understanding its molecular balance helps treat and prevent vocal fold lesions caused by trauma.

Area of Science:

  • Vocal fold biomechanics
  • Extracellular matrix (ECM) composition
  • Connective tissue histology

Context:

  • Hirano's 1974 description of laminar vocal fold structure.
  • Reinke's space (superficial lamina propria) is key to vocal fold vibration.
  • Normal Reinke's space ECM: loose scaffolding, proteoglycans (decorin, hyaluronic acid), glycoproteins (fibronectin).

Purpose:

  • Elucidate the molecular composition of the vocal fold lamina propria ECM.
  • Correlate ECM changes with vocal fold pathologies.
  • Inform therapeutic and prevention strategies for vocal fold lesions.

Summary:

  • Vocal fold vibration depends on the viscoelastic properties of the lamina propria ECM, especially Reinke's space.
  • Vibratory trauma alters Reinke's space ECM, causing lesions like nodules, fibrosis, and scars.

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  • Knowledge of Reinke's space ECM homeostasis is vital for managing vocal fold disorders.

    • Impact:

    • Enhances understanding of vocal fold tissue mechanics.
    • Provides insights into the pathogenesis of benign vocal fold lesions.
    • Guides future research in vocal fold regeneration and treatment.