The G389R mutation in the MAPT gene presenting as sporadic corticobasal syndrome
Identifieur interne : 002602 ( Main/Curation ); précédent : 002601; suivant : 002603The G389R mutation in the MAPT gene presenting as sporadic corticobasal syndrome
Auteurs : Giacomina Rossi [Italie] ; Cecilia Marelli [Italie] ; Laura Farina [Italie] ; Matilde Laurà [Italie] ; Anna Maria Basile [Italie] ; Claudia Ciano [Italie] ; Fabrizio Tagliavini [Italie] ; Davide Pareyson [Italie]Source :
- Movement Disorders [ 0885-3185 ] ; 2008-04-30.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
- Adult, Amino Acid Substitution, Basal Ganglia (pathology), Brain Diseases (genetics), Cerebral Cortex (pathology), Chromosomes, Human, Pair 17, Dementia (genetics), Frontotemporal dementia, Humans, Male, Mutation, Nervous system diseases, Nuclear magnetic resonance imaging, Parkinson Disease (genetics), Sporadic, Tauopathies (genetics), Tremor (etiology), Tremor (genetics), corticobasal syndrome, frontotemporal dementia, magnetic resonance imaging, mutation, tau Proteins (genetics), tauopathies.
- MESH :
- chemical , genetics : tau Proteins.
- etiology : Tremor.
- genetics : Brain Diseases, Dementia, Parkinson Disease, Tauopathies, Tremor.
- pathology : Basal Ganglia, Cerebral Cortex.
- Adult, Amino Acid Substitution, Chromosomes, Human, Pair 17, Humans, Male.
Abstract
A few patients with mutations in the microtubule‐associated protein tau gene (MAPT), affected by frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP‐17T), may clinically present with a corticobasal syndrome (CBS). We report a case of apparently sporadic CBS bearing a mutation in the MAPT gene so far associated with frontotemporal dementia (FTD) phenotype. The patient is a 41‐year‐old man with progressive asymmetric signs of cortical and basal ganglia involvement consistent with CBS. Magnetic resonance imaging showed asymmetric cortical atrophy and unusual corticospinal tract hyperintensity in T2‐weighted images. Genetic testing revealed a heterozygous G to C mutation at the first base of codon 389 of the MAPT gene, changing glycine to arginine (G389R), in the patient and his unaffected elderly father. In conclusion, the MAPT G389R mutation shows phenotypic variability resulting in both FTD and CBS. The mutation also demonstrates incomplete penetrance. Corticospinal tract degeneration is an exceptional finding. © 2008 Movement Disorder Society
Url:
DOI: 10.1002/mds.21970
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<front><div type="abstract" xml:lang="en">A few patients with mutations in the microtubule‐associated protein tau gene (MAPT), affected by frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP‐17T), may clinically present with a corticobasal syndrome (CBS). We report a case of apparently sporadic CBS bearing a mutation in the MAPT gene so far associated with frontotemporal dementia (FTD) phenotype. The patient is a 41‐year‐old man with progressive asymmetric signs of cortical and basal ganglia involvement consistent with CBS. Magnetic resonance imaging showed asymmetric cortical atrophy and unusual corticospinal tract hyperintensity in T2‐weighted images. Genetic testing revealed a heterozygous G to C mutation at the first base of codon 389 of the MAPT gene, changing glycine to arginine (G389R), in the patient and his unaffected elderly father. In conclusion, the MAPT G389R mutation shows phenotypic variability resulting in both FTD and CBS. The mutation also demonstrates incomplete penetrance. Corticospinal tract degeneration is an exceptional finding. © 2008 Movement Disorder Society</div>
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<affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Department of Neuroscience, II Neurology Clinic, Padua University</s1>
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<s3>ITA</s3>
<sZ>5 aut.</sZ>
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<author><name sortKey="Ciano, Claudia" sort="Ciano, Claudia" uniqKey="Ciano C" first="Claudia" last="Ciano">Claudia Ciano</name>
<affiliation wicri:level="3"><inist:fA14 i1="05"><s1>Division of Clinical Neurophysiology, IRCCS Foundation, "C. Besta" Neurological Institute</s1>
<s2>Milan</s2>
<s3>ITA</s3>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<placeName><settlement type="city">Milan</settlement>
<region nuts="2">Lombardie</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Tagliavini, Fabrizio" sort="Tagliavini, Fabrizio" uniqKey="Tagliavini F" first="Fabrizio" last="Tagliavini">Fabrizio Tagliavini</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>Division of Neuropathology, IRCCS Foundation, "C. Besta" Neurological Institute</s1>
<s2>Milan</s2>
<s3>ITA</s3>
<sZ>1 aut.</sZ>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<placeName><settlement type="city">Milan</settlement>
<region nuts="2">Lombardie</region>
</placeName>
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</author>
<author><name sortKey="Pareyson, Davide" sort="Pareyson, Davide" uniqKey="Pareyson D" first="Davide" last="Pareyson">Davide Pareyson</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Division of Biochemistry and Genetics, IRCCS Foundation, "C. Besta" Neurological Institute</s1>
<s2>Milan</s2>
<s3>ITA</s3>
<sZ>2 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>8 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<placeName><settlement type="city">Milan</settlement>
<region nuts="2">Lombardie</region>
</placeName>
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<series><title level="j" type="main">Movement disorders</title>
<title level="j" type="abbreviated">Mov. disord.</title>
<idno type="ISSN">0885-3185</idno>
<imprint><date when="2008">2008</date>
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<keywords scheme="Pascal" xml:lang="fr"><term>Démence frontotemporale</term>
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<front><div type="abstract" xml:lang="en">A few patients with mutations in the microtubule-associated protein tau gene (MAPT), affected by frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP-17T), may clinically present with a corticobasal syndrome (CBS). We report a case of apparently sporadic CBS bearing a mutation in the MAPT gene so far associated with frontotemporal dementia (FTD) phenotype. The patient is a 41-year-old man with progressive asymmetric signs of cortical and basal ganglia involvement consistent with CBS. Magnetic resonance imaging showed asymmetric cortical atrophy and unusual corticospinal tract hyperintensity in T2-weighted images. Genetic testing revealed a heterozygous G to C mutation at the first base of codon 389 of the MAPT gene, changing glycine to arginine (G389R), in the patient and his unaffected elderly father. In conclusion, the MAPT G389R mutation shows phenotypic variability resulting in both FTD and CBS. The mutation also demonstrates incomplete penetrance. Corticospinal tract degeneration is an exceptional finding.</div>
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<author><name sortKey="Maria Basile, Anna" sort="Maria Basile, Anna" uniqKey="Maria Basile A" first="Anna" last="Maria Basile">Anna Maria Basile</name>
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<author><name sortKey="Ciano, Claudia" sort="Ciano, Claudia" uniqKey="Ciano C" first="Claudia" last="Ciano">Claudia Ciano</name>
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<author><name sortKey="Tagliavini, Fabrizio" sort="Tagliavini, Fabrizio" uniqKey="Tagliavini F" first="Fabrizio" last="Tagliavini">Fabrizio Tagliavini</name>
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<term>Brain Diseases (genetics)</term>
<term>Cerebral Cortex (pathology)</term>
<term>Chromosomes, Human, Pair 17</term>
<term>Dementia (genetics)</term>
<term>Humans</term>
<term>Male</term>
<term>Parkinson Disease (genetics)</term>
<term>Tauopathies (genetics)</term>
<term>Tremor (etiology)</term>
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<term>Parkinson Disease</term>
<term>Tauopathies</term>
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<front><div type="abstract" xml:lang="en">A few patients with mutations in the microtubule‐associated protein tau gene (MAPT), affected by frontotemporal dementia and parkinsonism linked to chromosome 17 (FTDP‐17T), may clinically present with a corticobasal syndrome (CBS). We report a case of apparently sporadic CBS bearing a mutation in the MAPT gene so far associated with frontotemporal dementia (FTD) phenotype. The patient is a 41‐year‐old man with progressive asymmetric signs of cortical and basal ganglia involvement consistent with CBS. Magnetic resonance imaging showed asymmetric cortical atrophy and unusual corticospinal tract hyperintensity in T2‐weighted images. Genetic testing revealed a heterozygous G to C mutation at the first base of codon 389 of the MAPT gene, changing glycine to arginine (G389R), in the patient and his unaffected elderly father. In conclusion, the MAPT G389R mutation shows phenotypic variability resulting in both FTD and CBS. The mutation also demonstrates incomplete penetrance. Corticospinal tract degeneration is an exceptional finding. © 2008 Movement Disorder Society</div>
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