CHARCOT-MARIE-TOOTH DISEASE, AXONAL, AUTOSOMAL DOMINANT, TYPE 2A2A
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0.810 |
GeneticVariation
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disease |
BEFREE |
Charcot-Marie-Tooth disease Type 2A2 (CMT2A2), caused by mitofusin 2 (MFN2) genes, has been clinically classified into two types: severe early-onset and mild benign.
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22762946 |
2013 |
Hereditary motor and sensory neuropathy with optic atrophy (disorder)
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0.760 |
GeneticVariation
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disease |
BEFREE |
We will consider mtDNA based syndromes such as LHON/dystonia/Mitochondrial Encephalomyopahty Lactic Acidosis Stroke-like (MELAS)/Leigh overlapping syndrome, or nuclear based diseases such as Friedreich ataxia (mutations in FXN gene), deafness-dystonia-optic atrophy (Mohr-Tranebjerg) syndrome (mutations in TIMM8A), complicated hereditary spastic paraplegia (mutations in SPG7), DOA "plus" syndromes (mutations in OPA1), Charcot-Marie-Tooth type 2A (CMT2A) with optic atrophy or hereditary motor and sensory neuropathy type VI (HMSN VI) (mutations in MFN2), and Costeff syndrome and DOA with cataract (mutations in OPA3).
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19268652 |
2009 |
Hereditary motor and sensory neuropathy with optic atrophy (disorder)
|
0.760 |
Biomarker
|
disease |
BEFREE |
Our report expands the spectrum of MFN2-related manifestation because it indicates that visual symptoms of HMSN VI may enter in the differential with acquired or hereditary acute optic neuropathies, and that severe optic neuropathy is not invariably an early manifestation of the disease but may occur as disease progressed.
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25957633 |
2015 |
Hereditary motor and sensory neuropathy with optic atrophy (disorder)
|
0.760 |
GeneticVariation
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disease |
BEFREE |
However, the differences between CMT2A and HMSN VI with MFN2 mutations remained to be clarified.
|
16835246 |
2006 |
Hereditary motor and sensory neuropathy with optic atrophy (disorder)
|
0.760 |
GeneticVariation
|
disease |
BEFREE |
We conclude that autosomal dominant HMSN VI is caused by mutations in MFN2, emphasizing the important role of mitochondrial function for both optic atrophies and peripheral neuropathies.
|
16437557 |
2006 |
Hereditary motor and sensory neuropathy with optic atrophy (disorder)
|
0.760 |
GeneticVariation
|
disease |
BEFREE |
The patient is a Caucasian male with HMSN VI (type 2A Charcot-Marie-Tooth disease and associated optic atrophy) and a c.1090C→T (p.R364W) mutation in the mitofusin 2 (MFN2) gene.
|
21707411 |
2011 |
Hereditary motor and sensory neuropathy with optic atrophy (disorder)
|
0.760 |
GeneticVariation
|
disease |
BEFREE |
Complex phenotypes have been described in association with MFN2 gene mutations, including CMT2 with pyramidal features (hereditary motor and sensory neuropathy [HSMN V]) and CMT2 with optic atrophy (HMSN VI).
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18946002 |
2008 |
Optic Atrophy
|
0.500 |
Biomarker
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disease |
BEFREE |
Model and analyze mitochondrial fusion defects in Drosophila melanogaster heart tubes with tincΔ4Gal4-directed expression of RNA interference (RNAi) for mitochondrial assembly regulatory factor (MARF) and optic atrophy (Opa)1.
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21148429 |
2011 |
Optic Atrophy
|
0.500 |
GeneticVariation
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disease |
BEFREE |
Axonal neuropathy with optic atrophy is caused by mutations in mitofusin 2.
|
16437557 |
2006 |
Optic Atrophy
|
0.500 |
Biomarker
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disease |
BEFREE |
The MFN2 gene is responsible for mitochondrial DNA instability and optic atrophy 'plus' phenotype.
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22189565 |
2012 |
Optic Atrophy
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Molecular analysis aimed at detecting mutations of MFN2 could be extremely useful in mild axonal neuropathies with slow evolution and indispensable in cases of dominant inheritance or optic atrophy.
|
18996695 |
2008 |
Optic Atrophy
|
0.500 |
Biomarker
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disease |
BEFREE |
Mitofusin-2 gene (MFN2) mutations cause Charcot-Marie-Tooth type 2A (CMT2A), sometimes complicated by additional features such as optic atrophy, hearing loss, upper motor neuron signs and cerebral white-matter abnormalities.
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20951041 |
2011 |
Optic Atrophy
|
0.500 |
GeneticVariation
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disease |
BEFREE |
Mitochondrial fusion is modulated by different proteins, including mitofusin-1 (MFN1), mitofusin-2 (MFN2) and optic atrophy (OPA-1), while fission is controlled by mitochondrial fission 1 (FIS1), dynamin-related protein 1 (DRP1) and mitochondrial fission factor (MFF).
|
28131082 |
2017 |
Optic Atrophy
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Mitofusin-2 (MFN2) mutations are the most common cause of autosomal dominant axonal Charcot-Marie-Tooth disease (CMT, type 2A), sometimes complicated by additional features such as optic atrophy (CMT6) and upper motor neuron involvement (CMT5).
|
26306937 |
2015 |
Optic Atrophy
|
0.500 |
Biomarker
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disease |
BEFREE |
The clinical phenotype may mimic multiple sclerosis when optic atrophy and the characteristic brain lesions of MFN2 on magnetic resonance imaging are present and neuropathy is mild or unrecognized.
|
21987543 |
2011 |
Optic Atrophy
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
Complex phenotypes have been described in association with MFN2 gene mutations, including CMT2 with pyramidal features (hereditary motor and sensory neuropathy [HSMN V]) and CMT2 with optic atrophy (HMSN VI).
|
18946002 |
2008 |
Optic Atrophy
|
0.500 |
GeneticVariation
|
disease |
BEFREE |
The patient is a Caucasian male with HMSN VI (type 2A Charcot-Marie-Tooth disease and associated optic atrophy) and a c.1090C→T (p.R364W) mutation in the mitofusin 2 (MFN2) gene.
|
21707411 |
2011 |
Optic Atrophy
|
0.500 |
Biomarker
|
disease |
BEFREE |
We will consider mtDNA based syndromes such as LHON/dystonia/Mitochondrial Encephalomyopahty Lactic Acidosis Stroke-like (MELAS)/Leigh overlapping syndrome, or nuclear based diseases such as Friedreich ataxia (mutations in FXN gene), deafness-dystonia-optic atrophy (Mohr-Tranebjerg) syndrome (mutations in TIMM8A), complicated hereditary spastic paraplegia (mutations in SPG7), DOA "plus" syndromes (mutations in OPA1), Charcot-Marie-Tooth type 2A (CMT2A) with optic atrophy or hereditary motor and sensory neuropathy type VI (HMSN VI) (mutations in MFN2), and Costeff syndrome and DOA with cataract (mutations in OPA3).
|
19268652 |
2009 |
Optic Atrophy
|
0.500 |
Biomarker
|
disease |
BEFREE |
This gene is involved in typical CMT2A and in more atypical phenotypes as optic atrophy or spastic paraplegia.
|
26686600 |
2016 |
Optic Atrophy
|
0.500 |
Biomarker
|
disease |
BEFREE |
This study also demonstrates the value of MFN2 studies in cases of congenital axonal neuropathy, especially in cases of dominant inheritance, severe clinical symptoms or additional symptoms such as optic atrophy.
|
19889647 |
2010 |
Charcot-Marie-Tooth Disease
|
0.400 |
GeneticVariation
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disease |
BEFREE |
A French family with Charcot-Marie-Tooth disease related to simultaneous heterozygous MFN2 and GDAP1 mutations.
|
22546700 |
2012 |
Charcot-Marie-Tooth Disease
|
0.400 |
GeneticVariation
|
disease |
BEFREE |
Mutations of the mitofusin 2 (MFN2) gene have been reported to be the most common cause of the axonal form of Charcot-Marie-Tooth disease (CMT).
|
20587496 |
2010 |
Charcot-Marie-Tooth Disease
|
0.400 |
GeneticVariation
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disease |
BEFREE |
We also found that augmenting expression of MFN1 rescued the axonal degeneration caused by MFN2 mutants, suggesting a possible therapeutic strategy for Charcot-Marie-Tooth disease.
|
22442078 |
2012 |
Charcot-Marie-Tooth Disease
|
0.400 |
GeneticVariation
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disease |
BEFREE |
Mitochondrial fusion and function in Charcot-Marie-Tooth type 2A patient fibroblasts with mitofusin 2 mutations.
|
18316077 |
2008 |
Charcot-Marie-Tooth Disease
|
0.400 |
GeneticVariation
|
disease |
BEFREE |
Mutations in the Mitofusin 2 (MFN2) gene have been related to the axonal type of Charcot-Marie-Tooth type 2 (CMT 2A).
|
18996695 |
2008 |