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Monogenic hearing loss v2.94 COL2A1 Eleanor Williams changed review comment from: Associated with Stickler syndrome, type I #108300 (AD) in OMIM.

PMID: 23110709 - Acke et al 2012 - review the literature to give an overview of hearing loss in Stickler syndrome, correlated with the genotype. 313 patients from 102 families were reviewed. Hearing loss was found in 62.9%, mostly mild to moderate when reported. Mutations in COL11A1 (82.5%) and COL11A2 (94.1%) seem to be more frequently associated with hearing impairment than mutations in COL2A1 (52.2%).

PMID: 27408751 - Kondo et al 2016 - report 21 cases (some familial, most sporadic) with COL2A1 variants. 4/21 showed hearing loss.

PMID: 20179744 - Hoornaert et al 2010 - identified 77 different heterozygous COL2A1 mutations in 100 affected individuals out of a group of 188 individuals referred with a potential diagnosis of Stickler syndrome. 30% of COL2A1-variant positive patients had sensorineural hearing loss. However, over a higher percentage (50%) of patients without a COL2A1 mutation have sensorineural hearing loss.; to: Associated with Stickler syndrome, type I #108300 (AD) in OMIM.

PMID: 23110709 - Acke et al 2012 - review the literature to give an overview of hearing loss in Stickler syndrome, correlated with the genotype. 313 patients from 102 families were reviewed. Hearing loss was found in 62.9%, mostly mild to moderate when reported. Mutations in COL11A1 (82.5%) and COL11A2 (94.1%) seem to be more frequently associated with hearing impairment than mutations in COL2A1 (52.2%).

PMID: 27408751 - Kondo et al 2016 - report 21 cases (some familial, most sporadic) with COL2A1 variants. 4/21 (20%) showed hearing loss.

PMID: 20179744 - Hoornaert et al 2010 - identified 77 different heterozygous COL2A1 mutations in 100 affected individuals out of a group of 188 individuals referred with a potential diagnosis of Stickler syndrome. 30% of COL2A1-variant positive patients had sensorineural hearing loss. However, over a higher percentage (50%) of patients without a COL2A1 mutation have sensorineural hearing loss.