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A clinico-genetic study of renal coloboma syndrome in children

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Authors
Cheong, Hae Il; Cho, Hee Yeon; Kim, Jeong Hun; Yu, Young Suk; Ha, Il Soo; Choi, Yong
Issue Date
2007-06-02
Publisher
Springer Verlag
Citation
Pediatr Nephrol. 2007 Sep;22(9):1283-9. Epub 2007 May 31.
Keywords
AdolescentChildColoboma/*geneticsFemaleHumansInfantKidney/*abnormalitiesMale*MutationPAX2 Transcription Factor/*geneticsPedigreeSyndrome
Abstract
Renal coloboma syndrome (RCS) is an autosomal dominant disorder caused by PAX2 gene mutations and characterized by renal hypoplasia and optic disc coloboma. The clinical findings were retrospectively reviewed, and all coding regions of the PAX2 gene were sequenced, in six children with RCS. A c.619_620insG mutation was detected in five patients, including two siblings, and a novel p.Arg104X mutation was detected in one patient. All the patients had progressive renal dysfunction and bilateral hypoplastic kidneys without vesicoureteral reflux (VUR), but the rate of progression to end-stage renal disease showed some diversity. The ocular manifestations showed wide variability, ranging from subtle optic disc anomalies to microphthalmia. In one family with two affected siblings, maternal germline mosaicism was suggested by an intragenic microsatellite marker study. In conclusion, there are variable renal and ocular manifestations in RCS without significant phenotype-genotype correlations. VUR is not a cardinal renal manifestation of RCS. The possibility of germline mosaicism should be considered during molecular diagnosis and genetic counseling for PAX2 mutations.
ISSN
0931-041X (Print)
Language
English
URI
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=17541647

http://hdl.handle.net/10371/13455
DOI
https://doi.org/10.1007/s00467-007-0525-z
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College of Medicine/School of Medicine (의과대학/대학원)Ophthalmology (안과학전공)Journal Papers (저널논문_안과학전공)
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