Hateboer, N., Gumbs, C., Teare, M. D., Coles, G. A., Griffiths, David Francis Rees, Ravine, D., Futreal, P. A. and Rahman, N. 2001. Confirmation of a gene locus for medullary cystic kidney disease (MCKD2) on chromosome 16p12. Kidney International 60 (4) , pp. 1233-1239. 10.1046/j.1523-1755.2001.00932.x |
Abstract
BACKGROUND: Autosomal-dominant medullary cystic kidney disease (MCKD) is an interstitial nephropathy characterized by structural renal tubular defects that result in salt wasting and a reduction in urinary concentration. The condition has clinical and morphological similarities to autosomal-recessive juvenile nephronophthisis. Two genes predisposing to MCKD have been localized. MCKD1 on chromosome 1q21 was localized in two Cypriot families, and MCKD2 on chromosome 16p12 was localized in a single Italian family. We have evaluated a large Welsh MCKD family for linkage at these two loci. METHODS: Clinical data and DNA samples were collected from affected family members. Polymorphic microsatellite markers spanning the critical regions on chromosome 1 and chromosome 16 that encompass MCKD1 and MCKD2 were analyzed. Two-point and multipoint LOD scores were calculated. RESULTS: The family fulfilled previously published criteria for the diagnosis of MCKD, but hyperuricemia and gout were not prominent features. Twenty-one affected individuals were identified. Mean age at death or end-stage renal disease was 47 years (37 to 60). Linkage and haplotype analysis generated strongly negative results at MCKD1 on chromosome 1q21 (two-point LOD score = -5.32). Strong evidence of linkage to MCKD2 was generated with a maximum multi-point LOD score of 3.75. CONCLUSION: These results provide the first independent confirmation of a gene predisposing to MCKD on chromosome 16p12 and indicate that mutation of this gene is not restricted to a single family or population. The absence of hyperuricemia and gout in our family indicates that these are not obligatory features of MCKD2 mutations
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Medicine |
Subjects: | R Medicine > R Medicine (General) R Medicine > RZ Other systems of medicine |
Publisher: | Nature Publishing Group |
ISSN: | 0085-2538 |
Last Modified: | 04 Jun 2017 07:57 |
URI: | https://orca.cardiff.ac.uk/id/eprint/70308 |
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