Dementia in fragile X-associated tremor/ataxia syndrome (FXTAS): Comparison with Alzheimer's disease

Andreea L. Seritan, Danh V. Nguyen, Sarah E Tomaszewski Farias, W Ladson Hinton, Jim Grigsby, James A. Bourgeois, Randi J Hagerman

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Neurocognitive deficits in fragile X-associated tremor/ataxia syndrome (FXTAS) involve attentional control, working memory, executive functioning, and declarative and procedural learning. To date, no studies comparing FXTAS with other dementias have been done. We characterize the dementia in FXTAS, comparing it with Alzheimer's disease. Retrospective chart review of 68 adults (50 men, 18 women) with FXTAS. 20 men with FXTAS dementia were matched by age, gender, and education to patients with mild Alzheimer's dementia (AD). Neuropsychological measures were compared between the two groups: Boston Naming Test (BNT), phonemic fluency (Controlled Oral Word Association Test), digit span forward (DSF) and backward (DSB). Comparisons were based on analysis of covariance and t-tests to assess significant differences between groups. 50% of men with FXTAS and no women were cognitively impaired. On mean scores of verbal fluency (22.83 in FXTAS vs. 28.83 in AD, P = 0.112), working memory (DSB, 4.80 in AD vs. 5.41 in FXTAS, P = 0.359),andlanguage (BNT, 48.54 in AD vs. 54.20 in FXTAS, P = 0.089), there were no significant differences. Digit span forward, measuring attention, was significantly higher in subjects with FXTAS dementia (8.59, vs. 7.10 in AD, P = 0.010). Individuals with FXTAS have significant cognitive deficits, on the order of those in AD although the cognitive profiles in these dementias are not similar. Further research is needed to outline the neuropsychiatric profile in FXTAS and the correlation of genetic markers with the progression and severity of cognitive loss.

Original languageEnglish (US)
Pages (from-to)1138-1144
Number of pages7
JournalAmerican Journal of Medical Genetics, Part B: Neuropsychiatric Genetics
Volume147
Issue number7
DOIs
StatePublished - Oct 5 2008

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Dementia
Alzheimer Disease
Short-Term Memory
Fragile X Tremor Ataxia Syndrome
Word Association Tests
Patient Education
Genetic Markers
Learning

Keywords

  • Cognitive impairment
  • Neuropsychiatric profile
  • Neuropsychological

ASJC Scopus subject areas

  • Genetics(clinical)
  • Psychiatry and Mental health
  • Cellular and Molecular Neuroscience

Cite this

Dementia in fragile X-associated tremor/ataxia syndrome (FXTAS) : Comparison with Alzheimer's disease. / Seritan, Andreea L.; Nguyen, Danh V.; Tomaszewski Farias, Sarah E; Hinton, W Ladson; Grigsby, Jim; Bourgeois, James A.; Hagerman, Randi J.

In: American Journal of Medical Genetics, Part B: Neuropsychiatric Genetics, Vol. 147, No. 7, 05.10.2008, p. 1138-1144.

Research output: Contribution to journalArticle

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