Neuronal Ceroid Lipofuscinosis NCL2 | Animal Genetics

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Early Onset Neuronal Ceroid Lipofuscinosis in a Border Collie (NCL)

Description:

There are many forms of Neuronal Ceroid Lipofuscinosis (NCL) result in progressive degeneration of the central nervous system. Characteristic neurological signs of NCL include mental dullness, Ataxia, loss of vision, weakness, abnormal gait, seizures, tremors and aggressive behaviors.

 

NCL in Border Collies was first identified in Australia in the 1980s. Additional cases of NCL with the disease was also reported in the USA in the 1990s.

 

In 2005 a nonsense mutation (c.619C>T) in exon 4 in the canine CLN5 gene was reported to be linked to a specific form of Neuronal Ceroid Lipofuscinosis found in Border Collies. In 2016 NCL was diagnosed in young adult Australian Cattle Dogs. Further studies showed all affected individuals were identified as being homozygous for the nonsense mutation (c.619C>T) in exon 4 previously linked the NCL in Border Collies.

Sample Type:

Animal Genetics accepts buccal swab, blood, and dewclaw samples for testing. Sample collection kits are available and can be ordered at Canine Test Now.

Test Is Relevant to the Following Breeds:

Australian Cattle Dogs, Border Collie

Results:

Animal Genetics offers DNA testing for Neuronal Ceroid Lipofuscinosis NCL. The genetic test verifies the presence of the Neuronal Ceroid Lipofuscinosis mutation and presents results as one of the following:

NCL/NCL Affected The dog carries two copies of the mutant CLN5 gene and is homozygous for NCL. The dog is affected and will always pass a copy of the mutation to its offspring.
NCL/n Carrier Both the normal and mutant copies of the CLN5 gene detected. Dog is a carrier for the Neuronal Ceroid Lipofuscinosis and can pass on a copy of the defective gene to its offspring 50% of the time..
n/n Clear Dog tested negative for the mutant CLN5 gene and will not pass on the defective gene to its offspring.