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Association of Duchenne muscular dystrophy with autism spectrum disorder

Joyce Y Wu1, Karl C K Kuban, Elizabeth Allred

  • 1Division of Pediatric Neurology, David Geffen School of Medicine, Mattel Children's Hospital at UCLA, Los Angeles, CA, USA.

Journal of Child Neurology
|January 19, 2006
PubMed

Insights

Duchenne muscular dystrophy and autism spectrum disorder co-occur more often than by chance. This study identified a significant association, suggesting shared underlying biological mechanisms warranting further investigation.

Area of Science:

  • Neurology
  • Genetics
  • Pediatrics

Background:

  • Duchenne muscular dystrophy (DMD) is a severe genetic disorder.
  • Autism spectrum disorder (ASD) is a neurodevelopmental condition.
  • The co-occurrence of DMD and ASD has not been well-established.

Purpose of the Study:

  • To test the hypothesis that DMD and ASD co-occur more frequently than expected by chance.
  • To identify a potential unrecognized association between DMD and ASD.
  • To lay the groundwork for investigating shared genetic or protein-level mechanisms.

Main Methods:

  • A retrospective review of patients within a Massachusetts muscular dystrophy clinic.
  • Comparison of the prevalence of ASD in boys with DMD (6 of 158) against the general population prevalence of ASD (1.6 in 1,000).
  • Statistical analysis to determine the significance of the observed co-occurrence.

Main Results:

  • Eight boys with both DMD and ASD were identified.
  • The observed co-occurrence rate was significantly higher than expected by chance (P = .006).
  • This finding suggests a non-random association between DMD and ASD.

Conclusions:

  • A previously unrecognized association between Duchenne muscular dystrophy and autism spectrum disorder has been identified.
  • The co-occurrence is unlikely to be explained by chance alone.
  • Further research is needed to explore the genetic and protein-level links and neurobiological mechanisms.

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