Wat betekent 'helder'?
Het dier draagt de mutatie niet. Het zal de ziekte niet ontwikkelen en zal het niet doorgeven.
Kat Gangliosidosis Gm2 in Japanse Binnenlandse (GM2-JD)
Gangliosidosis GM2 in Japanese Domestic cats is a rare genetic disorder affecting the nervous system. This inherited condition leads to the accumulation of GM2 gangliosides, causing progressive neurological symptoms. A DNA test for Gangliosidosis GM2 helps breeders and cat owners identify carriers and affected cats early. Early diagnosis through genetic testing is crucial for managing the health and wellbeing of Japanese Domestic cats. By using a reliable DNA test, breeders can make informed decisions to prevent the spread of this debilitating disease. Protect your Japanese Domestic cat’s future with accurate Gangliosidosis GM2 DNA testing. Ensure a healthy lineage by screening for this genetic disorder today.
Afkorting: GM2-JD
Geanalyseerde mutatie: HEXB c.667C>T
Erfrecht: Autosomaal recessief
Acroniem
GM2-JD
Waargenomen frequentie
Klinische ernst
Klinische classificatie
Metabole Ziekten
Geanalyseerde mutatie
HEXB c.667C>T
p.(R223*)
p.(R223*)
Wijze van erfenis
Autosomaal recessief
Testsamenvatting:
Gangliosidosis GM2 is a genetic disorder found in Japanese Domestic cats, caused by a deficiency in the enzyme responsible for breaking down GM2 gangliosides. A DNA test can identify carriers and affected cats by detecting mutations in the HEXA or HEXB genes. Early diagnosis through genetic testing helps breeders prevent the spread of this fatal disease. Affected cats typically show neurological symptoms such as weakness and loss of coordination. Responsible breeding practices rely on DNA testing to maintain the health of the Japanese Domestic cat population.
Verkrijgbaar uit de verpakking: Basic
Deze DNA-test is inbegrepen vanaf ons pakket Basic — en maakt ook deel uit van de pakketten Basic, Standard, Advanced, Complete.
Bekijk DNA Testpakketten →Kies het pakket dat het beste past bij uw fok- of gezondheidsstrategie van uw dieren.
Understanding Gangliosidosis GM2 in Cats
Gangliosidosis GM2 is a genetic disorder that primarily affects the nervous system of cats. It is caused by a deficiency in the enzyme Hexosaminidase A (Hex-A), which is essential for the breakdown of certain lipids known as gangliosides. When this enzyme is deficient, gangliosides accumulate in the brain and other tissues, leading to progressive neurological dysfunction.
Clinical Signs of GM2 Gangliosidosis
Cats affected by GM2 gangliosidosis typically present a range of clinical signs that can vary in severity. Common symptoms include progressive weakness, lack of coordination, behavioral changes, and seizures. These symptoms usually manifest in young cats, often before they reach one year of age. As the condition progresses, affected cats may experience difficulty with movement, an inability to walk, and a decline in overall health.
Pathophysiology of GM2 Gangliosidosis
The pathophysiology of GM2 gangliosidosis is rooted in the accumulation of gangliosides due to the malfunction of the Hex-A enzyme. This accumulation leads to toxic effects on neuronal cells, resulting in cellular damage and death. Over time, the degeneration of nerve cells manifests as the neurological symptoms observed in affected cats. The condition is classified as a lysosomal storage disorder, highlighting the role of lysosomes in cellular waste management and the consequences of their dysfunction.
Genetic Basis of GM2 Gangliosidosis
GM2 gangliosidosis is inherited in an autosomal recessive manner, meaning that an individual must inherit two copies of the mutated gene—one from each parent—to develop the disease. The specific gene associated with this condition is located on chromosome 16 in cats. Genetic mutations that lead to the loss of Hex-A enzyme activity are responsible for the clinical manifestations of the disorder. Understanding the genetic foundation of GM2 gangliosidosis is critical for breeding programs aimed at reducing the incidence of this disease.
Diagnosis of GM2 Gangliosidosis
Diagnosis of GM2 gangliosidosis typically involves a combination of clinical evaluation and genetic testing. Veterinarians may suspect the condition based on clinical signs and a thorough neurological examination. However, definitive diagnosis often requires DNA testing to identify mutations in the gene responsible for the disorder. Early diagnosis is crucial for managing the condition and making informed decisions regarding the care of affected cats.
Beheer en prognose
Currently, there is no cure for GM2 gangliosidosis, and management focuses on supportive care to improve the quality of life for affected cats. This may include pain management, nutritional support, and environmental modifications to accommodate mobility challenges. The prognosis for cats with GM2 gangliosidosis is generally poor, with affected individuals often requiring humane euthanasia as the disease progresses. Awareness of this condition is essential for cat owners and breeders to make informed decisions regarding breeding practices and the health of their feline companions.
Ras erkend voor de test: Gangliosidosis Gm2 in Japanse Binnenlandse (GM2-JD)
- Japanese domestic
🧬 Interpretation of genotypes GM2-JD
Genotype
Status
🟡 N/N
Niet-drager - Geen Risico
🟡 N/GM2-JD
Vervoerder - Geen risico
❌ GM2-JD/GM2-JD
Aangetast - In gevaar
FAQ: het begrijpen van de interpretatie
Is een Carrier serieus?
Nee. Het dier is over het algemeen gezond, maar kan de mutatie doorgeven aan zijn dier nakomelingen.
Wat als een dier "Beïnvloed" is?
Het bevat twee gemuteerde exemplaren. Klinische symptomen worden verwacht, afhankelijk van de ziekte. Er mag niet mee worden gefokt.
Waarom zijn er verschillen tussen mannen en vrouwen?
Sommige ziekten zijn geslachtsgebonden, dus de uiting ervan varieert afhankelijk van de ziekte geslacht van het dier.
Voorspel Nakomelingen
N/N (niet-drager)
N/GM2-JD (Draagbare)
GM2-JD/GM2-JD (Aangetast)
Veelgestelde vragen DNA-test
Wat detecteert deze DNA-test?
This DNA test detects the mutation associated with Gangliosidosis Gm2 In Japanese Domestic (GM2-JD) in order to identify clear, carrier, or at-risk animals.
Waarom een fokdier testen?
DNA-testen helpen fokkers om veiligere paringen te plannen en het risico op het overdragen van de mutatie aan nakomelingen te verminderen.
Wat is de overervingsmodus van deze test?
De voor deze test gerapporteerde overervingsmodus is autosomaal recessief.
Welke mutatie wordt in deze test geanalyseerd?
This test analyses the mutation HEXB c.667C>T.
Is een dragerdier noodzakelijkerwijs aangetast?
Niet noodzakelijkerwijs. De interpretatie hangt af van het overervingspatroon en het resulterende genotype.
Referenties
Kanae Y, Endoh D, Yamato O, Hayashi D, Matsunaga S, Ogawa H, Maede Y, Hayashi M. Nonsense mutation of feline beta-hexosaminidase beta-subunit (HEXB) gene causing Sandhoff disease in a family of Japanese domestic cats. Res Vet Sci. 2007 Feb;82(1):54-60. doi: 10.1016/j.rvsc.2006.05.007. Epub 2006 Jul 26.