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Spinocerebellar ataxia type 13 (SCA13) is a rare autosomal dominant disorder, which, like other types of SCA, is characterized by dysarthria, nystagmus, and ataxia of gait, stance and the limbs due to cerebellar dysfunction. Patients with SCA13 also tend to present with epilepsy, an inability to run, and increased reflexes. This cerebellar dysfunction is permanent and progressive. SCA13 is caused by mutations in KCNC3, a gene encoding a voltage-gated potassium channel KV3.3. There are two known mutations in this gene causative for SCA13. Unlike many other types of SCA, these are not polyglutamine expansions but, rather, point mutations resulting in channels with no current or altered kinetics.

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  • Spinocerebellar ataxia type-13
  • Spinozerebelläre Ataxie Typ 13
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  • Die Spinozerebelläre Ataxie Typ 13 (SCA13) ist eine seltene, zu den Autosomal-dominanten zerebellären Ataxie (ADCA) gehörende Erbkrankheit, die bislang in zwei Familien (in Frankreich und den Philippinen) nachgewiesen werden konnte. Klinisch zeigen sich dabei zerebelläre Ataxie mit Dysarthrie, Dysphagie, Nystagmus, Epilepsie und oft auch leichte geistige Behinderung (IQ, 62–76). Die Lebenserwartung erscheint nicht verkürzt (manche Patienten werden 70 Jahre alt). Diese neurodegenerative Erkrankung wird autosomal-dominant vererbt.
  • Spinocerebellar ataxia type 13 (SCA13) is a rare autosomal dominant disorder, which, like other types of SCA, is characterized by dysarthria, nystagmus, and ataxia of gait, stance and the limbs due to cerebellar dysfunction. Patients with SCA13 also tend to present with epilepsy, an inability to run, and increased reflexes. This cerebellar dysfunction is permanent and progressive. SCA13 is caused by mutations in KCNC3, a gene encoding a voltage-gated potassium channel KV3.3. There are two known mutations in this gene causative for SCA13. Unlike many other types of SCA, these are not polyglutamine expansions but, rather, point mutations resulting in channels with no current or altered kinetics.
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  • Die Spinozerebelläre Ataxie Typ 13 (SCA13) ist eine seltene, zu den Autosomal-dominanten zerebellären Ataxie (ADCA) gehörende Erbkrankheit, die bislang in zwei Familien (in Frankreich und den Philippinen) nachgewiesen werden konnte. Klinisch zeigen sich dabei zerebelläre Ataxie mit Dysarthrie, Dysphagie, Nystagmus, Epilepsie und oft auch leichte geistige Behinderung (IQ, 62–76). Die Lebenserwartung erscheint nicht verkürzt (manche Patienten werden 70 Jahre alt). Diese neurodegenerative Erkrankung wird autosomal-dominant vererbt.
  • Spinocerebellar ataxia type 13 (SCA13) is a rare autosomal dominant disorder, which, like other types of SCA, is characterized by dysarthria, nystagmus, and ataxia of gait, stance and the limbs due to cerebellar dysfunction. Patients with SCA13 also tend to present with epilepsy, an inability to run, and increased reflexes. This cerebellar dysfunction is permanent and progressive. SCA13 is caused by mutations in KCNC3, a gene encoding a voltage-gated potassium channel KV3.3. There are two known mutations in this gene causative for SCA13. Unlike many other types of SCA, these are not polyglutamine expansions but, rather, point mutations resulting in channels with no current or altered kinetics.
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  • This condition is inherited in an autosomal dominant manner.
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