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Review
. 2002 Oct;43(10):426-432.
doi: 10.1111/j.1748-5827.2002.tb00008.x.

Canine inherited retinal degenerations: update on molecular genetic research and its clinical application

C-T Lin  1 , D J Gould  2 , S M Petersen-Jones  3 , D R Sargan  4
Affiliations
Review

Canine inherited retinal degenerations: update on molecular genetic research and its clinical application

C-T Lin et al. J Small Anim Pract. 2002 Oct.

Abstract

Inherited retinal degenerations in the dog include generalised progressive retinal atrophy, retinal pigment epithelial dystrophy, congenital stationary night blindness and day blindness (hemeralopia). The clinical phenotype and pathology of these diseases closely resemble some types of human inherited retinal degeneration, in particular retinitis pigmentosa, one of the most common inherited causes of blindness in man. Molecular genetic investigations aim to identify the genetic mutations underlying the canine inherited retinal degenerations. Two major research strategies, candidate gene analysis and linkage analysis, have been used. To date, candidate gene analysis has definitively identified the genetic mutations underlying nine inherited retinal degenerations, each in a different breed of dog, and linkage studies have identified genetic markers for a further retinal degeneration which is found in at least six different breeds. This review outlines the research strategy behind candidate gene and linkage studies and summarises recent results in the search for genetic causes of canine inherited retinal degenerations. The aim is to increase awareness of this rapidly changing field and to show how the research can be used to develop genetic tests for these diseases and thereby reduce the incidence of inherited eye disease in dogs.

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References

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