Analysis of polycystic kidney disease with two new microsatellite markers.

Two (CA) microsatellite polymorphisms have been studied in 209 subjects from Northern Italy, members of 27 Polycystic Kidney Disease families. Polymorphic alleles were analyzed by using a labelled PCR. Results obtained show that these markers highly improve the presymptomatic diagnosis of the disease in subjects at risk. In addition, our findings suggest that a region with a high recombination frequency should exist between PKD1 and SM7.