Abstract
We present a patient with acute onset painful polyneuropathy found to have a novel MPZ mutation (Arg36Trp). The Arg36Trp mutation described in this report occurs at a putative adhesion interface. An alternative explanation for his polyneuropathy was not found and his mother was identified to have polyneuropathy and carry the same mutation. Two hundred normal controls were without this base alteration. The temporal profile of the index case may provide further indirect evidence suggesting an immune mechanism contributing to the pathogenesis of some cases of MPZ mutations. We predict that other rapid symptom onset polyneuropathies will be found to have direct genetic susceptibility.
MeSH terms
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Acute Disease
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Amino Acid Substitution / genetics
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Arginine / genetics
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DNA Mutational Analysis
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Disease Progression
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Genetic Predisposition to Disease / genetics*
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Genetic Testing
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Hereditary Sensory and Motor Neuropathy / diagnosis
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Hereditary Sensory and Motor Neuropathy / genetics*
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Hereditary Sensory and Motor Neuropathy / physiopathology
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Humans
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Inheritance Patterns
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Male
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Middle Aged
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Myelin P0 Protein / genetics*
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Neuralgia / diagnosis
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Neuralgia / genetics*
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Neuralgia / physiopathology*
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Peripheral Nerves / metabolism
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Peripheral Nerves / pathology
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Peripheral Nerves / physiopathology*
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Peripheral Nervous System Diseases / diagnosis
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Peripheral Nervous System Diseases / genetics*
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Peripheral Nervous System Diseases / physiopathology
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Point Mutation / genetics*
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Polyradiculoneuropathy, Chronic Inflammatory Demyelinating / diagnosis
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Polyradiculoneuropathy, Chronic Inflammatory Demyelinating / genetics
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Polyradiculoneuropathy, Chronic Inflammatory Demyelinating / physiopathology
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Time Factors
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Tryptophan / genetics
Substances
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Myelin P0 Protein
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Tryptophan
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Arginine