Infantile esotropia could be oligogenic and allelic with Duane retraction syndrome
2011

Genetic Links Between Infantile Esotropia and Duane Retraction Syndrome

Sample size: 14 publication Evidence: moderate

Author Information

Author(s): Khan Arif O., Shinwari Jameela, Al Sharif Latifa, Khalil Dania, Al-Gehedan Saeed, Al Tassan Nada A.

Primary Institution: King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia

Hypothesis

Infantile esotropia could be oligogenic and allelic with Duane retraction syndrome.

Conclusion

Non-syndromic infantile esotropia may share genetic susceptibility loci with Duane retraction syndrome.

Supporting Evidence

  • Three children had non-syndromic large-angle infantile esotropia.
  • Linkage analysis identified disease loci on chromosomes 3 and 6.
  • The study suggests oligogenic inheritance for infantile esotropia.

Takeaway

This study looked at a family with several children who have eye problems and found that their conditions might be caused by shared genes.

Methodology

Clinical examinations and DNA analysis were performed on family members, followed by linkage analysis using SNP genotyping.

Limitations

The study is limited to a single consanguineous family, which may not represent broader populations.

Participant Demographics

The study involved a consanguineous family with 14 members, including 12 children.

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