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Rett syndrome in Ireland: a demographic study.

Komal Zade1, Ciara Campbell1, Snow Bach1

  • 1Department of Psychiatry, School of Medicine, Trinity Centre for Health Sciences, Trinity College Dublin, St James Hospital, Dublin, D08 W9RT, Ireland.

Orphanet Journal of Rare Diseases
|January 30, 2024
PubMed
Summary
This summary is machine-generated.

This study characterizes Rett syndrome (RTT) in Ireland, finding similarities to global cases but with unique aspects like better seizure control. It emphasizes the need for genetic testing to improve understanding and international visibility for Irish RTT patients.

Keywords:
MECP2 geneNeurodevelopmental disorderRett syndrome

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Area of Science:

  • Neuroscience
  • Genetics

Background:

  • Rett syndrome (RTT) is a rare neurodevelopmental disorder caused by MECP2 gene mutations, primarily affecting girls worldwide.
  • Limited data exists on the Irish RTT population, hindering comprehensive characterization and management.
  • The Rett Syndrome Association of Ireland (RSAI) collaborated to gather data on Irish individuals with RTT.

Purpose of the Study:

  • To characterize the demographic and clinical presentation of individuals with Rett syndrome in Ireland.
  • To identify unique features of the Irish RTT population compared to international cohorts.
  • To highlight the importance of genetic information for RTT diagnosis and research.

Main Methods:

  • A questionnaire was developed and distributed to families of individuals with RTT in Ireland.
  • Data collected included demographics, genetics, familial history, clinical features, and regression patterns.
  • Twenty-five families participated, providing insights into the Irish RTT cohort.

Main Results:

  • Irish individuals with RTT show comparable features to global populations but with notable differences.
  • A better response to anti-epileptic drugs and fewer skeletal deformities were observed in the Irish cohort.
  • Seizures, involuntary movements, and regression were more frequently reported in Irish individuals, alongside limited genetic information for diagnosis.

Conclusions:

  • This is the first study to characterize the RTT population in Ireland, despite a limited sample size.
  • Findings suggest unique clinical aspects within the Irish RTT cohort.
  • Swift access to genetic testing is crucial for accurate phenotyping and increased international visibility of Irish RTT patients.