4.4 Article

Prevalence of FMR1 repeat expansions in movement disorders - A systematic review

Journal

NEUROEPIDEMIOLOGY
Volume 26, Issue 3, Pages 151-155

Publisher

KARGER
DOI: 10.1159/000091656

Keywords

fragile-X-associated tremor/ataxia syndrome; cerebellar ataxia; fragile X syndrome; parkinsonism

Funding

  1. EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT [R01HD036071] Funding Source: NIH RePORTER
  2. NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE [R01NS043532] Funding Source: NIH RePORTER
  3. NICHD NIH HHS [HD36071] Funding Source: Medline
  4. NINDS NIH HHS [NS43532] Funding Source: Medline

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We reviewed prevalence rates of fragile X mental retardation gene (FMR1) repeat expansions in movement disorder populations. Inclusion criteria included published epidemiological studies from systematic searches of Medline, Pubmed, Cochrane Databases and Web Science. Thirteen cross-sectional studies were carried out between 2003 and 2005. Subjects with ataxia showed higher than expected rates while those with essential tremor and parkinsonism showed lower rates. The heterogeneous design of the studies, inclusion criteria and mean age of subjects may have led to underestimation of FMR1 repeat expansion prevalence rates.

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