Archives for Nov. 24, 2020

Pembroke Welsh Corgi Early Onset Risk Modifier

Pembroke Welsh Corgi  Early Onset Risk Modifier

Degenerative myelopathy (DM) is a chronic, progressive neurologic condition that typically develops in the latter third of a dog’s life. DM starts in the central portion of the spinal cord then gradually progresses to involve all spinal cord segments. 1 Although DM is unique to the dog, it is a natural-occurring model of human amyotrophic lateral sclerosis (ALS) also known as Lou Gehrig’s Disease.3,4 In dogs, the common form of DM results from a DNA change (mutation) in the SOD1 gene. This is a recessive condition, meaning that dogs with two copies of the mutation are at risk for developing DM. For most affected dogs this condition develops late in life, however a change in the DNA at a different gene than the SOD1 gene has been identified in some dogs that modifies the risk for DM in the Pembroke Welsh corgi. In dogs that have two copies of the at-risk DM mutation and have one or two copies of a mutation found in the SP110 gene, will reduce the age of onset for DM.   

Typical DM presents with dysfunctional and abnormal movements of the pelvic limbs around 8 years of age or later. Dogs may ...