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A Novel COL2A1 Gene Pathogenic Variant in a Turkish Family With Ocular Stickler Syndrome.
- Source :
-
Journal of pediatric ophthalmology and strabismus [J Pediatr Ophthalmol Strabismus] 2024 May-Jun; Vol. 61 (3), pp. e23-e27. Date of Electronic Publication: 2024 May 01. - Publication Year :
- 2024
-
Abstract
- A 6-month-old female infant with megalophthalmos was referred with the suspicion of congenital glaucoma. Refractive measurements obtained with handheld autorefractometry were -7.00 -2.00 × 90° in the right eye and -6.00 -2.00 × 100° in the left eye and ultrasonic axial lengths were 22.50 mm in both eyes. Intraocular pressures and vertical and horizontal corneal diameters of the proband were 11 mm Hg, 11 mm, and 11.50 mm in both eyes, respectively. She was diagnosed as having early-onset high myopia. Her father also had degenerative high myopia (-12.00 diopters) in the right eye, bilateral congenital lens opacities, and retinal detachment in the left eye. Her mother was emmetropic with normal eye examination results. Clinical exome sequencing analysis revealed a novel ENST00000380518.3 c.3528_3530 delins GACCATTAGCA (Chr12:48369813: GCA > TGCTAATGGTC) variant in the collagen type II alpha 1 chain ( COL2A1 ) on chromosome 12q13 (OMIM 108300), consistent with the Stickler syndrome type 1. Subsequent segregation analysis revealed paternal inheritance. Although many pathogenic null variants have been described within the COL2A1 gene, there is currently no documented literature pertaining to this specific variant, making this the inaugural report of its manifestation in scientific discourse. [ J Pediatr Ophthalmol Strabismus. 2024;61(3):e23-e27.] .
- Subjects :
- Female
Humans
Infant
DNA genetics
DNA Mutational Analysis
Exome Sequencing
Intraocular Pressure physiology
Mutation
Retinal Detachment genetics
Retinal Detachment diagnosis
Turkey
Arthritis genetics
Arthritis diagnosis
Collagen Type II genetics
Connective Tissue Diseases genetics
Connective Tissue Diseases diagnosis
Hearing Loss, Sensorineural genetics
Hearing Loss, Sensorineural diagnosis
Pedigree
Subjects
Details
- Language :
- English
- ISSN :
- 1938-2405
- Volume :
- 61
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Journal of pediatric ophthalmology and strabismus
- Publication Type :
- Academic Journal
- Accession number :
- 38788144
- Full Text :
- https://doi.org/10.3928/01913913-20240314-02