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Primary Hereditary Cataract (PHC)

Breed: Jack Russell Terrier

Breeds

Relevance Rating: There is some evidence or research available for these breeds

Relevance Rating: The test is unknown, there is no evidence (i.e. research) available, or it has not been evaluated yet. These tests may or may not be meaningful for these breeds

General

Disease Name
Primary Hereditary Cataract (PHC)
Gene Name 2
HSF4-2
Mutation
g.85286582delC
Mutation 2
g.85286582_3insC
Test Type
Genetic Disease/Disorder
Details
Affected dogs develop cataracts in both eyes at an early age. The condition is not congenital, so the lenses are normal at birth but cataracts appear at a few weeks to months in age, progressing to total cataract (and resulting blindness) by 2 to 3 years of age.
Details 2
Affected dogs develop cataracts in both eyes at an early age. The condition is not congenital, so the lenses are normal at birth but cataracts appear at a few weeks to months in age, progressing to total cataract (and resulting blindness) by 2 to 3 years of age.
Published
Mellersh, CS., Mclaughlin, B., Ahonen, S., Pettitt, L., Lohi, H., Barnett, KC.: Mutation in HSF4 is associated with hereditary cataract in the Australian Shepherd. Vet Ophthalmol 12:372-8, 2009. Pubmed reference: 19883468. DOI: 10.1111/j.1463-5224.2009.00735.x.

Breed Specific Info

Researched Breeds
Staffordshire Bull Terriers, Boston Terriers and French Bulldogs, Australian Shepherds, Miniature American Shepherds
Breed-specific 1
Australian Shepherd, Boston Terrier, Staffordshire Bull Terrier
Breed-specific 1 Details
Original publication (Mellersh et al., 2006) demonstrated a strong association between mutations and disease in SBTs (insertion) and a small number of Boston Terriers and Australian Shepherds (deletion). Abberrant splicing demonstrated. Subsequent publications (Mellersh et al., 2007; Mellersh et al., 2009) demonstrated strong association between insertion and EHC in Boston Terriers and deletion and HC in Australian Shepherds.
Breed-specific 2
French Bulldog
Breed-specific 2 Details
Unpublished. AHT has unpublished data indicating at least one dog of this breed is homozygous for this mutation and is affected with the associated disease, which they would be willing to share with an expert panel.
Breed-specific 3
American Shepherd
Breed-specific details 3
Unpublished.
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