Abstract:
BACKGROUND:Autosomal-dominant medullary cystic kidney disease type 2 (MCKD2) is a tubulointerstitial nephropathy that causes renal salt wasting, hyperuricemia, gout, and end-stage renal failure in the fifth decade of life. The chromosomal locus for MCKD2 was localized on chromosome 16p12. Within this chromosomal region, Uromodulin (UMOD) was located as a candidate gene. UMOD encodes the Tamm-Horsfall protein. By sequence analysis, one group formerly excluded UMOD as the disease-causing gene. In contrast, recently, another group described mutations in the UMOD gene as responsible for MCKD2 and familial juvenile hyperuricemic nephropathy (FJHN). METHODS:Haplotype analysis for linkage to MCKD2 was performed in 25 MCKD families. In the kindreds showing linkage to the MCKD2 locus on chromosome 16p12, mutational analysis of the UMOD gene was performed by exon polymerase chain reaction (PCR) and direct sequencing. RESULTS:In 19 families, haplotype analysis was compatible with linkage to the MCKD2 locus. All these kindreds were examined for mutations in the UMOD gene. In three different families, three novel heterozygous mutations in the UMOD gene were found and segregated with the phenotype in affected individuals. Mutations were found only in exon 4. CONCLUSION:We confirm the UMOD gene as the disease-causing gene for MCKD2. All three novel mutations were found in the fourth exon of UMOD, in which all mutations except one (this is located in the neighboring exon 5) published so far are located. These data point to a specific role of exon 4 encoded sequence of UMOD in the generation of the MCKD2 renal phenotype.
journal_name
Kidney Intjournal_title
Kidney internationalauthors
Wolf MT,Mucha BE,Attanasio M,Zalewski I,Karle SM,Neumann HP,Rahman N,Bader B,Baldamus CA,Otto E,Witzgall R,Fuchshuber A,Hildebrandt Fdoi
10.1046/j.1523-1755.2003.00269.xsubject
Has Abstractpub_date
2003-11-01 00:00:00pages
1580-7issue
5eissn
0085-2538issn
1523-1755pii
S0085-2538(15)49508-0journal_volume
64pub_type
杂志文章abstract::Pulse wave velocity (PWV) was measured in the aorta, right leg and arm of 90 control subjects (CS) and 92 hemodialysis patients (HD) of the same age and mean arterial pressure (MAP). Blood chemistry, including blood lipids, and echographic dimensions of the aorta, were measured in all subjects. Presence of aortic calc...
journal_title:Kidney international
pub_type: 杂志文章
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journal_title:Kidney international
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pub_type: 杂志文章,多中心研究
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journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1993.376
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pub_type: 评论,杂志文章
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更新日期:2006-11-01 00:00:00
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journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1990.11
更新日期:1990-01-01 00:00:00
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.1046/j.1523-1755.1999.00588.x
更新日期:1999-08-01 00:00:00
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pub_type: 杂志文章
doi:10.1038/ki.1987.267
更新日期:1987-11-01 00:00:00
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journal_title:Kidney international
pub_type: 杂志文章
doi:10.1038/ki.1996.353
更新日期:1996-08-01 00:00:00
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journal_title:Kidney international
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更新日期:2009-09-01 00:00:00
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