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Related Experiment Videos

Processing and analyzing the mouse temporal bone to identify gross, cellular and subcellular pathology

B A Bohne1, G W Harding

  • 1Washington University School of Medicine, Department of Otolaryngology, St. Louis, MO 63110, USA. bohne_b@kids.wustl.edu

Hearing Research
|July 1, 1997
PubMed
Summary

A new method prepares mouse temporal bones for detailed histopathological examination. This technique allows for gross, localized, and subcellular analysis of inner ear defects in mice.

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Area of Science:

  • Otolaryngology
  • Histopathology
  • Mouse models

Background:

  • Histopathological examination of the mouse temporal bone is crucial for understanding inner ear diseases.
  • Existing methods may not provide comprehensive analysis from gross to subcellular levels.

Purpose of the Study:

  • To develop and validate a multi-stage technique for preparing mouse temporal bones for detailed histopathological examination.
  • To enable comprehensive analysis of inner ear malformations and pathologies in mouse models.

Main Methods:

  • A three-stage preparation technique: whole mount for gross examination, dissected segments for localization and cell loss quantification, and semi-thick/thin sections for subcellular pathology.
  • Application of the technique to diverse mouse models with various inner ear defects.

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Main Results:

  • The technique successfully identified gross malformations, localized damage, quantified cell loss, and characterized subcellular pathology.
  • Demonstrated efficacy in analyzing diverse inner ear conditions, including cochlear spiral abnormalities, semicircular canal defects, otolith issues, noise damage susceptibility, and genetic mutations (fibroblast growth factor receptor 3).

Conclusions:

  • The developed technique provides a comprehensive approach for mouse temporal bone histopathology.
  • This method is effective for investigating a wide range of inner ear pathologies in mouse models, aiding in the understanding of human otological conditions.