The nervous system relies on a complex network of sensory nerves to help dogs interact safely with their environment. These nerves allow dogs to detect injuries, respond to painful stimuli, maintain balance, and coordinate movement. In dogs with Sensory Neuropathy, damage to these nerves disrupts normal communication between the body and the brain. As a result, affected dogs may not properly recognize pain or injury and can develop secondary complications due to repeated trauma that goes unnoticed.
Clinical signs of Sensory Neuropathy often begin during puppyhood or early adulthood, although the age of onset and severity can vary depending on the specific genetic mutation involved. Common symptoms may include reduced sensitivity to pain, frequent injuries to the feet or limbs, excessive licking or chewing of paws, self-mutilation, abnormal gait, muscle weakness, stumbling, loss of coordination, and difficulty walking. Some affected dogs may develop wounds or infections because they fail to react normally to painful stimuli. As the disease progresses, neurological impairment may become more severe, significantly affecting mobility and quality of life.
The SN DNA Health Test is designed to identify the specific genetic mutation associated with inherited Sensory Neuropathy. Testing is simple and non-invasive, requiring either a cheek swab or blood sample. The sample is analyzed in a specialized laboratory to determine the dog’s genetic status. Since DNA remains unchanged throughout life, testing can be performed at any age, including in young puppies before clinical signs become apparent.
Results are generally reported in one of three categories:
- Clear (Normal): The dog does not carry the SN mutation and cannot pass it to offspring.
- Carrier: The dog carries one copy of the mutation but is typically unaffected by the disorder. However, it can pass the mutation to future generations.
- Affected/At Risk: The dog carries two copies of the mutation and has a significantly increased risk of developing Sensory Neuropathy and its associated clinical signs.
Genetic testing for Sensory Neuropathy provides valuable information for breeders, veterinarians, and dog owners. Breeders can use test results to make informed mating decisions that help reduce the incidence of the disorder while maintaining healthy genetic diversity within the breed. Avoiding the mating of two carrier dogs can significantly decrease the likelihood of producing affected puppies.
For dog owners, knowing a dog's genetic status allows for proactive health management and early veterinary monitoring. Dogs identified as at risk may benefit from regular neurological evaluations, protective environmental measures, and prompt treatment of injuries or infections. Although there is currently no cure for inherited Sensory Neuropathy, early diagnosis and supportive care can help manage symptoms and improve overall quality of life.
The Sensory Neuropathy (SN) Health Test is a reliable genetic screening tool that supports responsible breeding practices, promotes canine neurological health, and helps reduce the impact of this inherited disorder in future generations. Through early detection and informed breeding decisions, breeders and owners can contribute to healthier dogs and improved long-term welfare.
