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Cochlear and renal pathology in the autoimmune strain mouse
1Department of Otorhinolaryngology, School of Medicine, Nagoya University, Japan.
The Annals of Otology, Rhinology & Laryngology. Supplement
|October 1, 1992
Summary
Autoimmune disorders in NZB/kl mice cause sensorineural hearing loss. Researchers found immunoglobulin G deposits in the inner ear, correlating with impaired hearing, suggesting an autoimmune model for hearing disorders.
Area of Science:
- Immunology
- Otolaryngology
- Nephrology
Background:
- Sensorineural hearing loss is a significant health concern.
- The link between autoimmune diseases and hearing impairment requires further investigation.
- Renal disorders are sometimes associated with autoimmune conditions.
Purpose of the Study:
- To explore the role of immune mechanisms in sensorineural hearing loss.
- To investigate the relationship between inner ear and kidney disorders.
- To establish a mouse model for studying autoimmune-related hearing dysfunction.
Main Methods:
- Utilized autoimmune-prone NZB/kl mice.
- Assessed hearing using acoustic brainstem responses.
- Analyzed cochlear and renal pathology via histology and immunofluorescence.
- Measured circulating immune complexes using enzyme immunoassay.
Main Results:
- NZB/kl mice exhibited impaired hearing compared to controls.
- Immunoglobulin G deposits were observed in the stria vascularis of affected mice.
- A correlation was found between hearing impairment severity and stria vascularis lesions.
Conclusions:
- The NZB/kl mouse serves as a viable model for sensorineural hearing disorders.
- Immunologic mechanisms, specifically immunoglobulin G deposition, play a role in inner ear dysfunction.
- This study highlights the connection between autoimmune diseases and hearing loss.