Archives of ophthalmology (Chicago, Ill. : 1960) · 2006
The role of the WDR36 gene on chromosome 5q22.1 in a large family with primary open-angle glaucoma mapped to this region.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Kramer Patricia L, Samples John R, Monemi Sharareh, Sykes Renee, Sarfarazi Mansoor, Wirtz Mary K
Аннотация
OBJECTIVE: To determine whether mutations in the WD40-repeat 36 (WDR36) gene are responsible for primary open-angle glaucoma (POAG) that maps to the GLC1G locus in a family with 16 affected family members.
METHODS: Ninety-two family members underwent clinical evaluation for POAG on the basis of intraocular pressures, cupping of discs, and visual fields after informed consent was obtained. All 23 exons of WDR36 were sequenced in DNA from 5 affected and 2 unaffected family members.
RESULTS: Sixteen family members showed evidence of POAG. A number of sequence variations were identified in family members; most of the variations were previously described single-nucleotide polymorphisms also present in the general population. The 3 new sequence changes were all intronic; 2 were found in only 1 of the family members undergoing screening.
CONCLUSIONS: Several polymorphisms, including known single-nucleotide polymorphisms, were identified; however, none of these were consistent with disease-causing mutations. A mutation in a noncoding region of WDR36 may be responsible for POAG in this family, or another gene in this region may be the actual cause of glaucoma in this family.
CLINICAL RELEVANCE: The finding that the WDR36 gene is probably not the responsible gene in this family further documents the genetic heterogeneity of POAG.
METHODS: Ninety-two family members underwent clinical evaluation for POAG on the basis of intraocular pressures, cupping of discs, and visual fields after informed consent was obtained. All 23 exons of WDR36 were sequenced in DNA from 5 affected and 2 unaffected family members.
RESULTS: Sixteen family members showed evidence of POAG. A number of sequence variations were identified in family members; most of the variations were previously described single-nucleotide polymorphisms also present in the general population. The 3 new sequence changes were all intronic; 2 were found in only 1 of the family members undergoing screening.
CONCLUSIONS: Several polymorphisms, including known single-nucleotide polymorphisms, were identified; however, none of these were consistent with disease-causing mutations. A mutation in a noncoding region of WDR36 may be responsible for POAG in this family, or another gene in this region may be the actual cause of glaucoma in this family.
CLINICAL RELEVANCE: The finding that the WDR36 gene is probably not the responsible gene in this family further documents the genetic heterogeneity of POAG.