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Fragile X-premutation tremor/ataxia syndrome (FXTAS) in a young woman : clinical, genetics, MRI and 1H-MR spectroscopy correlates (CROSBI ID 161921)

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Šarac, Helena ; Henigsberg, Neven ; Markeljević, Jasenka ; Pavliša, Goran ; Hof, Patrick R. ; Šimić, Goran Fragile X-premutation tremor/ataxia syndrome (FXTAS) in a young woman : clinical, genetics, MRI and 1H-MR spectroscopy correlates // Collegium antropologicum, 35 (2011), S1; 327-332

Podaci o odgovornosti

Šarac, Helena ; Henigsberg, Neven ; Markeljević, Jasenka ; Pavliša, Goran ; Hof, Patrick R. ; Šimić, Goran

engleski

Fragile X-premutation tremor/ataxia syndrome (FXTAS) in a young woman : clinical, genetics, MRI and 1H-MR spectroscopy correlates

It is generally thought that fragile X-associated tremor/ataxia syndrome (FXTAS) represents a late-onset neurodegenerative disorder occuring in male carriers of a premutation expansion (55-200 CGG repeats) in the fragile X mental retardation 1 (FMR 1) gene. However, several female patients with FXTAS have also been reported recently. Here, we describe a 23-year old woman with positive family history of mental retardation and autism who presented clinically with action tremor, ataxia, emotional disturbances and cognitive dysfunction. Magnetic resonance imaging (MRI) of the brain showed diffuse cortical atrophy, while 1H-MR spectroscopy (MRS) revealed decreased levels of N-acetylaspartate (NAA) in the cerebellum, basal ganglia, and pons. Genetic testing confirmed heterozygous FMR 1 gene premutation of 100 CGG repeats in the abnormal allele and 29 CGG repeats in the normal allele. We concluded that FXTAS may be an under-recognized disorder, particularly in women.

FMR1 gene; fragile X premutation; tremor; cerebellar ataxia; cognitive impairment; genetics; MRI; 1H-MR spectroscopy

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Podaci o izdanju

35 (S1)

2011.

327-332

objavljeno

0350-6134

Povezanost rada

Kliničke medicinske znanosti

Indeksiranost