Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor)

Five juvenile pied imperial pigeons (Ducula bicolor) presented with neurological signs including torticollis, ataxia and poor flying ability. All were humanely destroyed and submitted for post-mortem examination. Microscopically, the most significant findings were in the brain and spinal cord. Spher...

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Main Authors: Barrows, M., Killick, R., Day, C., Saunders, R., Baiker, Kerstin, Ressel, L., Denk, D.
Format: Article
Published: Elsevier 2017
Online Access:https://eprints.nottingham.ac.uk/51126/
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author Barrows, M.
Killick, R.
Day, C.
Saunders, R.
Baiker, Kerstin
Ressel, L.
Denk, D.
author_facet Barrows, M.
Killick, R.
Day, C.
Saunders, R.
Baiker, Kerstin
Ressel, L.
Denk, D.
author_sort Barrows, M.
building Nottingham Research Data Repository
collection Online Access
description Five juvenile pied imperial pigeons (Ducula bicolor) presented with neurological signs including torticollis, ataxia and poor flying ability. All were humanely destroyed and submitted for post-mortem examination. Microscopically, the most significant findings were in the brain and spinal cord. Spheroid formation was evident within the medulla, pons, diencephalon, cortical grey and subcortical white matter, spinal cord white and grey matter and the granular and molecular cell layers of the cerebellum. There was no evidence of associated inflammation. Immunohistochemistry revealed positive labelling within the spheroids for S100 axons and phosphorylated neurofilaments including SMI31, neurofilament cocktail and microtubule-associated protein 2. Transmission electron microscopy confirmed the light microscopical findings of frequent axonal spheroids. These results are consistent with neuroaxonal dystrophy, which has not been described previously in pigeons. This highlights the importance of considering neuroaxonal dystrophy in juvenile birds with neurological signs. A genetic basis is suspected in this group.
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spelling nottingham-511262020-05-04T18:47:18Z https://eprints.nottingham.ac.uk/51126/ Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor) Barrows, M. Killick, R. Day, C. Saunders, R. Baiker, Kerstin Ressel, L. Denk, D. Five juvenile pied imperial pigeons (Ducula bicolor) presented with neurological signs including torticollis, ataxia and poor flying ability. All were humanely destroyed and submitted for post-mortem examination. Microscopically, the most significant findings were in the brain and spinal cord. Spheroid formation was evident within the medulla, pons, diencephalon, cortical grey and subcortical white matter, spinal cord white and grey matter and the granular and molecular cell layers of the cerebellum. There was no evidence of associated inflammation. Immunohistochemistry revealed positive labelling within the spheroids for S100 axons and phosphorylated neurofilaments including SMI31, neurofilament cocktail and microtubule-associated protein 2. Transmission electron microscopy confirmed the light microscopical findings of frequent axonal spheroids. These results are consistent with neuroaxonal dystrophy, which has not been described previously in pigeons. This highlights the importance of considering neuroaxonal dystrophy in juvenile birds with neurological signs. A genetic basis is suspected in this group. Elsevier 2017-05-30 Article PeerReviewed Barrows, M., Killick, R., Day, C., Saunders, R., Baiker, Kerstin, Ressel, L. and Denk, D. (2017) Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor). Journal of Comparative Pathology, 156 (4). pp. 451-457. ISSN 1532-3129 https://www.sciencedirect.com/science/article/pii/S0021997516304996?via%3Dihub doi:10.1016/j.jcpa.2017.02.006 doi:10.1016/j.jcpa.2017.02.006
spellingShingle Barrows, M.
Killick, R.
Day, C.
Saunders, R.
Baiker, Kerstin
Ressel, L.
Denk, D.
Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor)
title Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor)
title_full Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor)
title_fullStr Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor)
title_full_unstemmed Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor)
title_short Neuroaxonal dystrophy in a flock of pied imperial pigeons (Ducula bicolor)
title_sort neuroaxonal dystrophy in a flock of pied imperial pigeons (ducula bicolor)
url https://eprints.nottingham.ac.uk/51126/
https://eprints.nottingham.ac.uk/51126/
https://eprints.nottingham.ac.uk/51126/