|COL2A1, COL9A1, COL9A2, COL9A3, COL11A1, COL11A2|
|Lab method:||NGS panel with CNV analysis|
|Specimen requirements:||2-4 ml of blood with anticoagulant EDTA
1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
|Ordering information:||Go to online ordering or download sample submission form|
Indications for genetic testing:
- Confirmation of clinical diagnosis
- Carrier testing for at-risk family members
- Genetic counseling
Stickler syndrome is a group of hereditary conditions affecting connective tissue. Stickler syndrome is characterized by ocular findings, distinctive facial abnormalities, hearing loss, skeletal abnormalities, and joint problems.
Eye findings may include high myopia, cataract, vitreoretinal or chorioretinal degeneration, and retinal detachment. Hearing loss can be both conductive and sensorineural. Affected individuals have a characteristic flattened facial appearance caused by midfacial underdevelopment and cleft palate.
Stickler syndrome is inherited in an autosomal dominant or autosomal recessive manner. Stickler syndrome affects approximately 7,500 to 9,000 newborns.
Annunen S et al. Splicing mutations of 54-bp exons in the COL11A1 gene cause Marshall syndrome, but other mutations cause overlapping Marshall/Stickler phenotypes. 1999. Am J Hum Genet 65 (4): 974–83.
Printzlau A, Andersen M. Pierre Robin sequence in Denmark: a retrospective population-based epidemiological study. Cleft Palate Craniofac J. 2004;41:47–52.
Robin NH et al. Stickler Syndrome. GeneReviews® 2000 June 9 (Updated 2014 Nov 26)