Ectopia lentis in a consanguineous Pakistani family and a novel locus on chromosome 8q

Haiba Kaul, S. Amer Riazuddin, Zaheeruddin A. Qazi, Idrees A. Nasir, Ahmad U. Zafar, Shaheen N. Khan, Tayyab Husnain, Javed Akram, J. Fielding Hejtmancik, Sheikh Riazuddin

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Abstract

Objective: To investigate the genetic basis and molecular characteristics of the isolated form of ectopia lentis. Methods: We ascertained a consanguineous Pakistani family with multiple individuals with ectopia lentis. All affected as well as unaffected members with isolated ectopia lentis underwent detailed ophthalmologic and medical examination. Blood samples were collected and DNA was extracted. A genome-wide scan was completed with 382 polymorphic microsatellite markers, and logarithm of odds (LOD) scores were calculated. Results: Maximum 2-point LOD scores of 5.68 and 2.88 at θ=0 were obtained for markers D8S285 and D8S260, respectively, during the genome-wide scan. Additional microsatellite markers refined the disease locus to a 16.96-cM (14.07-Mb) interval flanked by D8S1737 proximally and D8S1117 distally. Conclusions:Wereportonanewlocus for nonsyndromic autosomal recessive ectopia lentis on chromosome 8q11.23-q13.2 in a consanguineous Pakistani family. Clinical Relevance: Identification of genetic loci and genes involved in ectopia lentis will enhance our understanding of the disease at a molecular level, leading to better genetic counseling and family screening and possible future development of better treatment.

Original languageEnglish (US)
Pages (from-to)1046-1049
Number of pages4
JournalArchives of ophthalmology
Volume128
Issue number8
DOIs
StatePublished - Aug 1 2010

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ASJC Scopus subject areas

  • Ophthalmology

Cite this

Kaul, H., Riazuddin, S. A., Qazi, Z. A., Nasir, I. A., Zafar, A. U., Khan, S. N., Husnain, T., Akram, J., Hejtmancik, J. F., & Riazuddin, S. (2010). Ectopia lentis in a consanguineous Pakistani family and a novel locus on chromosome 8q. Archives of ophthalmology, 128(8), 1046-1049. https://doi.org/10.1001/archophthalmol.2010.165