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Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
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Consanguinity: The innocent culprit in autism severity.

Watfa Al-Mamari1, Ahmed B Idris1, Najat Fadlallah2

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Summary
This summary is machine-generated.

Consanguinity and homozygosity did not significantly correlate with autism spectrum disorder (ASD) severity in Omani children. Further research is needed to understand genetic factors in ASD within consanguineous populations.

Keywords:
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Area of Science:

  • Genetics
  • Neurodevelopmental Disorders
  • Pediatrics

Background:

  • Autism spectrum disorder (ASD) is a complex neurodevelopmental condition with known genetic and environmental influences.
  • Consanguinity, the mating of related individuals, can increase the likelihood of inheriting recessive genetic disorders.
  • Understanding genetic factors in ASD is crucial for diagnosis and intervention, particularly in populations with higher consanguinity rates.

Purpose of the Study:

  • To investigate the potential relationship between consanguinity and homozygosity rates and the severity of autism spectrum disorder (ASD).
  • To analyze genetic factors influencing ASD presentation in a cohort of Omani children.

Main Methods:

  • A retrospective study analyzed records of 139 children diagnosed with ASD (aged 1.5-14 years) at Sultan Qaboos University Hospital, Oman.
  • Data included consanguinity status, homozygosity rates, and ASD severity classification.
  • Statistical analysis explored correlations between consanguinity, homozygosity, and ASD severity.

Main Results:

  • The study included 139 children with ASD, 74.1% male, with a mean age of diagnosis of 4.5 ± 2 years.
  • Most cases were classified as ASD severity levels 2 (63.3%) and 3 (35.3%).
  • Consanguinity was reported in 59% of cases, with a mean homozygosity rate of 4.6%; no significant correlation was found with ASD severity.

Conclusions:

  • No significant association was identified between consanguinity or homozygosity rates and the severity of autism spectrum disorder.
  • Further research is warranted to explore the specific genetic mechanisms underlying ASD in consanguineous populations.