An investigation into the genetics of ‘wobbler disease’ in thoroughbred horses in Britain.

The research article explores the link between genetics and ‘wobbler disease’ in thoroughbred horses in Britain. After extensive genetic comparison of affected and unaffected horses, no evidence of a genetic predisposition to the disease was found.

Methodology

• The authors assembled 67 Thoroughbred horses in Britain that were clinically diagnosed with ‘wobbler disease’. Subsequently, these horses were divided into five different groups. This division was based on whether they showed pathological lesions and the nature of such lesions.
• These groups were then compared to a control group. This control group comprised of 67 Thoroughbred horses that showed no signs of ‘wobbler disease’.
• The horses were analysed for simple and complex modes of inheritance, which involved examination of their genetic profiles.

Results

• Despite the extensive research, the authors found no evidence to suggest a genetic basis for ‘wobbler disease’ within any group.
• The article mentions the higher prevalence of ‘wobbler disease’ in Thoroughbreds, although it does not verify whether this incidence is truly higher for Thoroughbreds or merely appears to be so.
• The research also noted a significantly higher count of male than female horses suffering from ‘wobbler disease’. This suggests a potential sex-related factor in the development of this condition.

Additional Observations

• Other forms of potentially inherited ataxia (a degenerative disease affecting the nervous system) in equidae (the family of mammals that horses belong to) were also reviewed during this study.
• The authors also make reference to conditions in humans and larger dog breeds that are pathologically comparable to ‘wobbler disease’ in horses. This suggests that understanding the disease in horses could have implications for understanding similar conditions in other species.