Article (Scientific journals)
Hereditary motor and sensory neuropathy with absence of large myelinated fibers due to absence of large neurons in dorsal root ganglia and anterior horns, clinically associated with deafness, mental retardation, and epilepsy (HMSN-ADM).
Muller, H. D.; Mugler, M.; RAMAEKERS, Vincent et al.
2000In Journal of the Peripheral Nervous System, 5 (3), p. 147-57
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Keywords :
Anterior Horn Cells/pathology; Cerebellar Nuclei/pathology; Child, Preschool; Deafness/pathology; Epilepsy/pathology; Fatal Outcome; Female; Ganglia, Spinal/pathology; Hereditary Sensory and Motor Neuropathy/pathology; Humans; Infant; Intellectual Disability/pathology; Motor Neurons/pathology; Nerve Fibers, Myelinated/pathology; Neurons, Afferent/pathology
Abstract :
[en] Hereditary motor and sensory neuropathy (HMSN) with autosomal recessive inheritance represents a genetically heterogeneous group of disorders with variable clinical, pathologic and electrophysiologic manifestations. A new variant of autosomal recessive HMSN, clinically defined by sensorimotor polyneuropathy associated with deafness and mental retardation, has recently been described. We report on the first autopsy case with this type of HMSN: a girl of non-consanguineous parents with a presumably autosomal recessive type of motor and sensory neuropathy clinically associated with deafness, mental retardation, and epilepsy. The autopsy showed complete absence of large myelinated fibers in peripheral motor and sensory nerves corresponding to a lack of large neurons in dorsal root ganglia and anterior horns of the spinal cord, moderate neurogenic muscle atrophy, and nearly complete absence of neurons in the dentate nucleus of the cerebellum. Molecular genetic analyses in our case revealed neither genetic alterations in the survival motor neuron gene nor in the PMP-22 gene.
Disciplines :
Pediatrics
Neurology
Author, co-author :
Muller, H. D.;  Rheinisch - Westfälische Technische Hochschule Aachen - RWTH > Neuropathology
Mugler, M.;  Rheinisch - Westfälische Technische Hochschule Aachen - RWTH > Neuropathology
RAMAEKERS, Vincent ;  Rheinisch - Westfälische Technische Hochschule Aachen - RWTH > Paediatric Neurology
Schroder, J. M.;  Rheinisch - Westfälische Technische Hochschule Aachen - RWTH > Neuropathology
Language :
English
Title :
Hereditary motor and sensory neuropathy with absence of large myelinated fibers due to absence of large neurons in dorsal root ganglia and anterior horns, clinically associated with deafness, mental retardation, and epilepsy (HMSN-ADM).
Publication date :
September 2000
Journal title :
Journal of the Peripheral Nervous System
ISSN :
1085-9489
eISSN :
1529-8027
Publisher :
Wiley, Hoboken, United States - New Jersey
Volume :
5
Issue :
3
Pages :
147-57
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 07 June 2014

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