Cerebrospinal fluid and serum proteomic profiles accurately distinguish neuroaxonal dystrophy from cervical vertebral compressive myelopathy in horses.
Authors: Donnelly Callum G, Johnson Amy L, Reed Steve, Finno Carrie J
Journal: Journal of veterinary internal medicine
Summary
# Editorial Summary: Proteomic Profiling for Equine Spinal Cord Disease Diagnosis Neuroaxonal dystrophy/degenerative myeloencephalopathy (eNAD/EDM) and cervical vertebral compressive myelopathy (CVCM) both present as spinal ataxia in horses, yet distinguishing between them during life has remained problematic, with imaging and clinical signs often overlapping and potentially leading to unnecessary surgical intervention or missed nutritional management opportunities. Donnelly and colleagues employed proteomic analysis—examining protein patterns in cerebrospinal fluid and serum samples—to identify disease-specific biomarkers that could reliably differentiate these two conditions. Their findings demonstrated that proteomic profiles from both fluids could accurately distinguish eNAD/EDM from CVCM, with specific protein signatures characteristic of each disease, offering the first reliable antemortem diagnostic approach for these conditions. For equine practitioners, this advancement means potentially clearer diagnostic pathways that could inform treatment decisions: whether pursuing surgical decompression for compressive lesions or implementing targeted micronutrient (particularly vitamin E) supplementation for degenerative cases. Wider adoption of proteomic testing could reduce diagnostic uncertainty, guide more precise case management, and ultimately improve outcomes for ataxic horses by ensuring that treatments are matched to underlying pathology rather than presumption.
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Practical Takeaways
- •Proteomic analysis may provide a new diagnostic tool to definitively differentiate CVCM from eNAD/EDM, improving treatment decisions and prognosis counseling
- •This could help clinicians avoid unnecessary surgical interventions in cases of eNAD/EDM or ensure timely surgical management in CVCM cases
- •Further validation needed before routine clinical application, but represents significant progress in equine spinal disease diagnostics
Key Findings
- •Proteomic profiling of cerebrospinal fluid and serum can distinguish between CVCM and eNAD/EDM in horses
- •This diagnostic approach offers potential for definitive antemortem diagnosis of two major causes of spinal ataxia
- •Current diagnostic modalities lack ability to reliably differentiate these two conditions in living horses