Neuroaxonal dystrophy of the accessory cuneate nucleus in horses.
Abstract: Data were collected from 37 horses with a neurologic disability and compared to a group of 34 normal horses. Affected horses had neuroaxonal dystrophy, gliosis, vacuoles, and sometimes pigment localized to the accessory cuneate nuclei with minimal or no changes in the spinal cord and no changes in the proximal peripheral nerves. The focal nature of the change and usual absence of significant light microscopic spinal cord or peripheral nerve changes are different than previously described equine neuropathologic conditions.
Publication Date: 1984-07-01 PubMed ID: 6464300DOI: 10.1177/030098588402100404Google Scholar: Lookup
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- Journal Article
Summary
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This research article investigates a condition called neuroaxonal dystrophy, found specifically in the accessory cuneate nucleus of horses with neurological disabilities, being distinct from previous equine neuropathologies due to its focal and non-spinal character.
Summary of the Study and Its Goals
- The goal of this research was to analyze data collected from horses suffering from a neurological disability and compare it with data from a group of normal horses.
- The researchers were specifically interested in cases of neuroaxonal dystrophy, a degenerative condition that affects the neurons in the brain and spinal cord.
- The focus in this instance was on its occurrence in the accessory cuneate nucleus, a part of the brain that hasn’t been studied extensively in relation to this condition in horses.
Main Findings and Observations
- The study found that affected horses exhibited symptoms of neuroaxonal dystrophy, gliosis, vacuoles and sometimes pigmentation, localized specifically to the accessory cuneate nuclei.
- It was observed that minimum to no changes occurred in the spinal cord of the affected horses, and absolutely no changes were noted in their proximal peripheral nerves.
- This points towards a unique characteristic of the condition where the changes and damages seem to be highly localized.
Potential Implications and Arguments
- The researchers argue that the focal nature of this condition and the usual absence of significant light microscopic changes in the spinal cord or peripheral nerves make this specific form of neuroaxonal dystrophy in horses distinct from previously examined equine neuropathological conditions.
- This could imply a different causative agent or disease mechanism or pathway that is not yet known or identified.
- If so, this research could form the basis for future studies focusing on this form of neuroaxonal dystrophy in horses, potentially leading to new diagnoses or treatment methods.
Cite This Article
APA
Beech J.
(1984).
Neuroaxonal dystrophy of the accessory cuneate nucleus in horses.
Vet Pathol, 21(4), 384-393.
https://doi.org/10.1177/030098588402100404 Publication
Researcher Affiliations
MeSH Terms
- Age Factors
- Animals
- Axons / pathology
- Axons / ultrastructure
- Brain Diseases / pathology
- Brain Diseases / physiopathology
- Brain Diseases / veterinary
- Gait
- Horse Diseases / pathology
- Horse Diseases / physiopathology
- Horses
- Medulla Oblongata / pathology
- Vacuoles / ultrastructure
Citations
This article has been cited 9 times.- Donnelly CG, Finno CJ. Vitamin E depletion is associated with subclinical axonal degeneration in juvenile horses. Equine Vet J 2023 Sep;55(5):884-890.
- Lucot KL, Dickinson PJ, Finno CJ, Mansour TA, Letko A, Minor KM, Mickelson JR, Drögemüller C, Brown CT, Bannasch DL. A Missense Mutation in the Vacuolar Protein Sorting 11 (VPS11) Gene Is Associated with Neuroaxonal Dystrophy in Rottweiler Dogs. G3 (Bethesda) 2018 Jul 31;8(8):2773-2780.
- Draper ACE, Piercy RJ. Pathological classification of equine recurrent laryngeal neuropathy. J Vet Intern Med 2018 Jul;32(4):1397-1409.
- Tsuboi M, Watanabe M, Nibe K, Yoshimi N, Kato A, Sakaguchi M, Yamato O, Tanaka M, Kuwamura M, Kushida K, Ishikura T, Harada T, Chambers JK, Sugano S, Uchida K, Nakayama H. Identification of the PLA2G6 c.1579G>A Missense Mutation in Papillon Dog Neuroaxonal Dystrophy Using Whole Exome Sequencing Analysis. PLoS One 2017;12(1):e0169002.
- Finno CJ, Valberg SJ, Shivers J, D'Almeida E, Armién AG. Evidence of the Primary Afferent Tracts Undergoing Neurodegeneration in Horses With Equine Degenerative Myeloencephalopathy Based on Calretinin Immunohistochemical Localization. Vet Pathol 2016 Jan;53(1):77-86.
- Finno CJ, Famula T, Aleman M, Higgins RJ, Madigan JE, Bannasch DL. Pedigree analysis and exclusion of alpha-tocopherol transfer protein (TTPA) as a candidate gene for neuroaxonal dystrophy in the American Quarter Horse. J Vet Intern Med 2013 Jan-Feb;27(1):177-85.
- Adams AP, Collatos C, Fuentealba C, Illanes O, Blanchard R. Neuroaxonal dystrophy in a two-year-old quarter horse filly. Can Vet J 1996 Jan;37(1):43-4.
- de Lahunta A. Abiotrophy in domestic animals: a review. Can J Vet Res 1990 Jan;54(1):65-76.
- Brown KA, Bender SJ, Johnson AL. Clinical and histopathological features in horses with neuroaxonal degeneration: 100 cases (2017-2021). J Vet Intern Med 2024 Jan-Feb;38(1):431-439.
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