Use of an ELISA in the differential diagnosis of cauda equina neuritis and other equine neuropathies.

This research paper focuses on using an enzyme-linked immunosorbent assay (ELISA) to distinguish between cauda equina neuritis and other nerve-related conditions in horses. The test proved particularly useful for detecting neuropathies involving the back end of a horse, but was less effective for nerve problems in the cranial or other peripheral areas.

Objective of Research

• The primary objective of the research was to examine the effectiveness of Enzyme-linked immunosorbent assay (ELISA) as a diagnostic tool for determining cauda equina neuritis versus other types of neuropathies in horses.

Methodology

• The study was conducted on 27 potential equine neuropathies.
• An ELISA test was conducted, utilizing P2 preparations from either bovine or equine myelin, to detect the different neuropathies. Myelin is a substance surrounding nerve fibers and P2 is a protein intensely localized within it.
• The test results were then compared for accuracy in diagnosing cauda equina neuritis compared to other types of neuropathies.

Findings

• The ELISA test was successful in detecting all cases of cauda equina neuritis, where there was caudal involvement. Cauda equina neuritis is a nervous system condition affecting the horse’s tail region, commonly known as ‘tailhead’.
• However, it was found that this test had limited effectiveness in differentiating neuropathies involving only cranial (head and face) or other peripheral nerves.

Conclusion

• The study concluded that while the ELISA test using P2 preparations from bovine or equine myelin is a reliable tool for diagnosing cauda equina neuritis where there’s caudal involvement, it has limitations for other types of neuropathies, particularly those involving the cranial and other peripheral nerves.