title: [Genetics and genetic counseling].
abstract: Autosomal Dominant Polycystic Kidney Disease (ADPKD) is the most frequent genetic disease, characterized by progressive development of bilateral renal cysts. Two causative genes have been identified: PKD1 and PKD2. ADPKD phenotype is highly variable. Typically, ADPKD is an adult onset disease. However, occasionally, ADPKD manifests as very early onset disease. The phenotypic variability of ADPKD can be explained at three genetic levels: genic, allelic and gene modifier effects. Recent advances in molecular screening for PKD gene mutations and the introduction of the new next generation sequencing (NGS)- based genotyping approach have generated considerable improvement regarding the knowledge of genetic basis of ADPKD. The purpose of this article is to provide a comprehensive review of the genetics of ADPKD, focusing on new insights in genotype-phenotype correlation and exploring novel clinical approach to genetic testing. Evaluation of these new genetic information requires a multidisciplinary approach involving a nephrologist and a clinical geneticist.
authors.forename: Claudia
authors.initials: C
authors.lastname: Izzi
authors.forename: Francesca
authors.initials: F
authors.lastname: Liut
authors.forename: Nadia
authors.initials: N
authors.lastname: Dallera
authors.forename: Cinzia
authors.initials: C
authors.lastname: Mazza
authors.forename: Riccardo
authors.initials: R
authors.lastname: Magistroni
authors.forename: Gianfranco
authors.initials: G
authors.lastname: Savoldi
authors.forename: Francesco
authors.initials: F
authors.lastname: Scolari
mesh_terms: D000483:Alleles; D015415:Biomarkers / Q000097:blood; D005817:Genetic Counseling; D005838:Genotype; D006801:Humans; D009154:Mutation; D010641:Phenotype; D016891:Polycystic Kidney, Autosomal Dominant / Q000235:genetics*; D050396:TRPP Cation Channels / Q000235:genetics*
chemical_list: D015415:Biomarkers; D050396:TRPP Cation Channels