Faculty Research 1990 - 1999

Title

Assessment of hearing in 80 inbred strains of mice by ABR threshold analyses.

Document Type

Article

Publication Date

1999

Keywords

Animal, Auditory-Pathways: ph, Auditory-Threshold: ph, Brain-Stem: ph, Electrophysiology, Hearing: ph, Hearing-Disorders: di, Hearing-Tests, Mice, Mice-Inbred-Strains: ge, ph, Reference-Values, SUPPORT-U-S-GOVT-P-H-S

JAX Source

Hear Res 1999 Apr;130(1-2):94-107

Grant

N01DC62108/DC/NIDCD, CA34196/CA/NCI

Abstract

The common occurrence of hearing loss in both humans and mice, and the anatomical and functional similarities of their inner ears, attest to the potential of mice being used as models to study inherited hearing loss. A large-scale, auditory screening project is being undertaken at The Jackson Laboratory (TJL) to identify mice with inherited hearing disorders. To assess hearing sensitivity, at least five mice from each inbred strain had auditory brainstem response (ABR) thresholds determined. Thus far, we have screened 80 inbred strains of mice; 60 of them exhibited homogeneous ABR threshold values not significantly different from those of the control strain CBA/CaJ. This large database establishes a reliable reference for normal hearing mouse strains. The following 16 inbred strains exhibited significantly elevated ABR thresholds before the age of 3 months: 129/J, 129/ReJ, 129/SvJ, A/J, ALR/LtJ, ALS/LtJ, BUB/BnJ, C57BLKS/J, C57BR/cdJ, C57L/J, DBA/2J, I/LnJ, MA/MyJ, NOD/LtJ, NOR/LtJ, and SKH2/J. These hearing impaired strains may serve as models for some forms of human non-syndromic hearing loss and aid in the identification of the underlying genes.

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