Childhood-onset primary open angle glaucoma in a Canadian kindred: Clinical and molecular genetic features
Document Type
Article
Department
Ophthalmology
Abstract
Objective: To describe the clinical features and identify the molecular etiology of childhood-onset primary open angle glaucoma (POAG) in a Canadian kindred.
Methods: Members of a Canadian Caucasian family with POAG were examined and DNA obtained. Single-strand conformation polymorphism analysis was performed using reported primers from exon 3 of the myocilin gene. A single-stranded conformation polymorphism was characterized by polymerase chain reaction-based sequencing.
Results: Two affected half-sibs had onset of severe glaucoma at age 3 and 9. Their mother had lost vision in one eye from glaucoma by age 17. All three affected subjects had undergone bilateral glaucoma filtering surgery. Both fathers were unaffected. A single-stranded conformation polymorphism was identified in the mother and the two affected daughters and was absent in one father. A single base change from C-->T at nucleotide position 1109 was identified in the affected members of the family by direct sequencing. This mutation, which causes a nonconservative amino acid change (Pro370Leu), was not found on 192 normal chromosomes from Caucasian individuals.
Conclusion: We report a Canadian family with childhood-onset, severe POAG due to a mutation in the myocilin gene.
Publication (Name of Journal)
Ophthalmic Genetics
Recommended Citation
Damji, K. F.,
Song, X.,
Gupta, S. K.,
Gao, J.,
Rock, W.,
Bulman, D. E.
(1999). Childhood-onset primary open angle glaucoma in a Canadian kindred: Clinical and molecular genetic features. Ophthalmic Genetics, 20(4), 211-218.
Available at:
https://ecommons.aku.edu/pakistan_fhs_mc_ophthalmol/124
Comments
This work was published before the author joined Aga Khan University.