Medullary cystic kidney disease with hyperuricemia and gout in a large Cypriot family: no allelism with nephronophthisis type 1.
Am J Med Genet
; 77(2): 149-54, 1998 May 01.
Article
em En
| MEDLINE
| ID: mdl-9605289
ABSTRACT
We describe a large Cypriot family with an interstitial type of nephropathy, inherited as an autosomal dominant trait that led to end stage renal failure between 51 to 78 years of age (mean 62.2 years). Twenty-three people are known to be affected, but several younger relatives with normal renal function may remain undiagnosed because of the absence of precise clinical and laboratory diagnostic criteria. This nephropathy is associated with medullary renal cysts, hypertension, hyperuricemia, and gout. Several relatives have typical medullary cystic disease (MCD), while in the others the findings are compatible with this diagnosis. Due to the similarity of clinical and pathologic findings, earlier reports had suggested that MCD may be allelic to autosomal recessive familial juvenile nephronophthisis, which was mapped recently to chromosome band 2q13. Linkage analysis of the present family with a closely linked marker excluded linkage to the above locus. Linkage was also excluded to the PKD1 locus of adult polycystic kidney disease type 1, and up to 5 cM on either side, on chromosome 16. We suggest that because of the element of hyperuricemia and gout found in this family, although with reduced penetrance, it may represent a variant of autosomal dominant MCD of the adult type. This variability may be the result of allelic or locus heterogeneity. Molecular genetic approaches including linkage analysis on appropriate families will certainly assist in classifying such related genetically heterogeneous disorders.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácido Úrico
/
Doenças Renais Císticas
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Gota
/
Medula Renal
Limite:
Adult
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Aged
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Female
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Humans
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Male
/
Middle aged
País/Região como assunto:
Europa
Idioma:
En
Revista:
Am J Med Genet
Ano de publicação:
1998
Tipo de documento:
Article
País de afiliação:
Chipre