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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Linkage, clinical features, and prognosis of autosomal dominant polycystic kidney disease types 1 and 2.

Linkage analysis was performed on 49 Catalan families with autosomal dominant polycystic kidney disease obtained via the Nephrology Department and related nephrology centers. A total of 336 subjects, 267 at risk for the disease, were investigated using three microsatellites linked to polycystic kidney disease Type 1 (PKD1) and three microsatellites linked to PKD2. All of the subjects underwent physical and sonographic examination. The results demonstrate locus heterogeneity, with 0.85 as the maximum likelihood for the proportion of families linked to PKD1. All of the remaining families were found to be linked to PKD2. Analysis of clinical data in the PKD1 group (N = 146) versus the PKD2 group (N = 20) showed a milder form of the disease in the latter, with a later age at diagnosis (27.4 versus 41.4 yr, P = 0.0002), later age of onset of ESRD (53.4 versus 72.7 yr, P < 0.0001), later age of diagnosis of hypertension (34.8 versus 49.7 yr, P = 0.001) and lower prevalence of hypertension at younger ages. Sonographic findings did not differ significantly between both groups. Although anticipation was observed in both groups, it did not affect the majority of families. No signs of imprinting were found in this study, and the only gender effect was an earlier age of onset of ESRD in men than in women (49.5 versus 53.1 yr in PKD1, P < 0.01 and 70.57 versus 73.6 yr in PKD2, P = 0.1). Molecular analysis of autosomal-dominant polycystic kidney disease allows presymptomatic diagnosis in individuals younger than age 30, and helps in establishing prognosis.[1]


  1. Linkage, clinical features, and prognosis of autosomal dominant polycystic kidney disease types 1 and 2. Torra, R., Badenas, C., Darnell, A., Nicolau, C., Volpini, V., Revert, L., Estivill, X. J. Am. Soc. Nephrol. (1996) [Pubmed]
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