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Progressive Retinal Atrophy (PRA) is a large group of genetic diseases in which the retina gradually degenerates over time, causing a progressive loss of vision.
10 Arbeidsdager
Spesifikasjoner
| Breeds | Gammel dansk hønsehund, irsk setter, Polish Tatra Sheepdog, Polsk owczarek nizinny, Puddel (miniatyr), Puddel (standard), Puddel (toy), Tibetansk terrier, Gordon Setter |
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| Gene | |
| Organ | |
| specimen | Svaber, EDTA blod, heparinblod, sæd, vev |
| Mode of Inheritance | |
| Chromosome | |
| Also known as | |
| Year Published |
Generell informasjon
Progressive Retinal Atrophy (PRA) is a large group of genetic diseases in which the retina gradually degenerates over time, causing a progressive loss of vision. PRA has multiple forms, including Rod-cone-dysplasia type 4 (rcd4-PRA). This form of PRA is caused by an autosomal recessive mutation in the C2orf71 gene and is characterized by late-onset degeneration of vision in dogs.
This form was first identified in Gordon Setters, but has been found in other breeds as well.
Kliniske egenskaper
The disorder is characterized by late-onset degeneration of photoreceptor cells in the retina. This leads to loss of vision and eventually blindness. Dogs with this disease can start showing signs of visual impairment between 5 and 12 years of age, with an average age of onset of approximately 10 years.
Tilleggsinformasjon
Referanser
Pubmed ID: 22686255
Omia ID: 1575