X-chromosomale bulbospinale Neuronopathie (X-BSN, Kennedy-Syndrom): Eine Erkrankung mit repetitiven Tripletsequenzen. Kasuistik, Differentialdiagnose und molekulargenetische Aspekte [X chromosomal bulbospinal neuropathy (X-BSN, Kennedy syndrome): an illness with repetitive triplet sequences. Case report, differential diagnosis and molecular genetics aspects].

Details

Serval ID
serval:BIB_EEBBFA301A35
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Title
X-chromosomale bulbospinale Neuronopathie (X-BSN, Kennedy-Syndrom): Eine Erkrankung mit repetitiven Tripletsequenzen. Kasuistik, Differentialdiagnose und molekulargenetische Aspekte [X chromosomal bulbospinal neuropathy (X-BSN, Kennedy syndrome): an illness with repetitive triplet sequences. Case report, differential diagnosis and molecular genetics aspects].
Journal
Nervenarzt
Author(s)
Abel A., Danek A., Borasio G.D., Witt T.N.
ISSN
0028-2804 (Print)
ISSN-L
0028-2804
Publication state
Published
Issued date
1996
Volume
67
Number
12
Pages
1011-1019
Language
german
Notes
Publication types: Case Reports ; English Abstract ; Journal Article ; ReviewPublication Status: ppublish
Abstract
X-chromosomal recessive bulbospinal neuronopathy (X-BNS, Kennedy's disease) is an important differential diagnosis of amyotrophic lateral sclerosis. We present the data of ten own patients along with a review of the literature on this uncommon disease which is caused by an expanded CAG-repeat in the androgen receptor gene. This mutation probably affects the transcription regulating activity of the androgen receptor in neurons. Signs and symptoms of X-BSN can be derived from partial insensitivity for androgens and a mixed, mainly motor neuronopathy. The clinical diagnosis is based on: 1. lower motor neuron weakness of bulbar and proximal limb muscles with onset in the third to fifth decade, 2. cramps and pronounced fasciculations, particularly of facial muscles, 3. postural tremor, 4. diminished or absent sensory action potentials inspite of only minor sensory impairment, 5. gynecomastia, and 6. infertility, diabetes mellitus and hyperlipoproteinemia in a minority of cases. Unlike amyotrophic lateral sclerosis, disease progression is slow with barely shortened life expectancy, which should be stressed in patient counselling. Causal treatment is as yet unavailable but several aspects of palliative medicine should be considered.
Keywords
Amyotrophic Lateral Sclerosis/diagnosis, Amyotrophic Lateral Sclerosis/genetics, Bulbar Palsy, Progressive/diagnosis, Bulbar Palsy, Progressive/genetics, Heterozygote Detection, Humans, Male, Middle Aged, Motor Neuron Disease/diagnosis, Motor Neuron Disease/genetics, Neurologic Examination, Pedigree, Phenotype, Receptors, Androgen/genetics, Sex Chromosome Aberrations/genetics, Trinucleotide Repeats/genetics, X Chromosome
Pubmed
Web of science
Create date
13/01/2014 17:48
Last modification date
03/03/2018 22:33
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