Skip to main content
Top
Published in: Acta Neuropathologica 6/2003

01-12-2003 | Regular Paper

Hyperproliferation of synapses on spinal motor neurons of Duchenne muscular dystrophy and myotonic dystrophy patients

Authors: Masahiro Nagao, Shuichi Kato, Hideaki Hayashi, Hidemi Misawa

Published in: Acta Neuropathologica | Issue 6/2003

Login to get access

Abstract

Synapses on the motor neurons of patients with Duchenne muscular dystrophy (DMD) and myotonic dystrophy (MD) were studied immunohistochemically using antibodies against synaptobrevin and synaptophysin. Some motor neurons showed hyperproliferation of synapses on the soma and the proximal dendrites. Hyperproliferated synapses were non-cholinergic, because they were not identified with antibodies against vesicular acetylcholine transporter. Regeneration of motor nerve terminals in patients with muscular diseases may affect reorganization of the subsets of central synapses.
Literature
1.
go back to reference Brannstrom T, Kellerth J-O (1999) Recovery of synapses in axotomized adult cat spinal motoneurons after reinnervation into muscle. Exp Brain Res 125:19–27CrossRefPubMed Brannstrom T, Kellerth J-O (1999) Recovery of synapses in axotomized adult cat spinal motoneurons after reinnervation into muscle. Exp Brain Res 125:19–27CrossRefPubMed
2.
go back to reference Dubrovsky A, Taratuto AL (1983) Reinnervation in Duchennue muscular dystrophy. Muscle Nerve 6:299–302PubMed Dubrovsky A, Taratuto AL (1983) Reinnervation in Duchennue muscular dystrophy. Muscle Nerve 6:299–302PubMed
3.
go back to reference Harriman DGF (1976) A comparison of the fine structure of motor end-plates in Duchenne dystrophy and in human neurogenic diseases. J Neurol Sci 28:233–247CrossRefPubMed Harriman DGF (1976) A comparison of the fine structure of motor end-plates in Duchenne dystrophy and in human neurogenic diseases. J Neurol Sci 28:233–247CrossRefPubMed
4.
go back to reference Jerusalem F, Engel AG, Gomez MR (1974) Duchenne dystrophy. II. Morphometric study of motor end-plate fine structure. Brain 97:123–130PubMed Jerusalem F, Engel AG, Gomez MR (1974) Duchenne dystrophy. II. Morphometric study of motor end-plate fine structure. Brain 97:123–130PubMed
5.
go back to reference Nagao M, Misawa H, Kato S, Hirai S (1998) Loss of cholinergic synapses on the spinal motor neurons of amyotrophic lateral sclerosis. J Neuropathol Exp Neurol 57:329–333PubMed Nagao M, Misawa H, Kato S, Hirai S (1998) Loss of cholinergic synapses on the spinal motor neurons of amyotrophic lateral sclerosis. J Neuropathol Exp Neurol 57:329–333PubMed
6.
go back to reference Ikemoto A, Kawanami T, Llena JF, Hirano A (1994) Immunohistochemical studies on synaptophysin in the anterior horn of lower motor neuron disease. J Neuropathol Exp Neurol 53:196–201PubMed Ikemoto A, Kawanami T, Llena JF, Hirano A (1994) Immunohistochemical studies on synaptophysin in the anterior horn of lower motor neuron disease. J Neuropathol Exp Neurol 53:196–201PubMed
7.
go back to reference Tomlison BE, Walton JN, Irving D (1974) Spinal cord limb motor neurones in muscular dystrophy. J Neurol Sci 22:305–327CrossRefPubMed Tomlison BE, Walton JN, Irving D (1974) Spinal cord limb motor neurones in muscular dystrophy. J Neurol Sci 22:305–327CrossRefPubMed
Metadata
Title
Hyperproliferation of synapses on spinal motor neurons of Duchenne muscular dystrophy and myotonic dystrophy patients
Authors
Masahiro Nagao
Shuichi Kato
Hideaki Hayashi
Hidemi Misawa
Publication date
01-12-2003
Publisher
Springer-Verlag
Published in
Acta Neuropathologica / Issue 6/2003
Print ISSN: 0001-6322
Electronic ISSN: 1432-0533
DOI
https://doi.org/10.1007/s00401-003-0759-1

Other articles of this Issue 6/2003

Acta Neuropathologica 6/2003 Go to the issue