Your browser doesn't support javascript.
loading
Personalized genetic counseling for Stargardt disease: Offspring risk estimates based on variant severity.
Cornelis, Stéphanie S; Runhart, Esmee H; Bauwens, Miriam; Corradi, Zelia; De Baere, Elfride; Roosing, Susanne; Haer-Wigman, Lonneke; Dhaenens, Claire-Marie; Vulto-van Silfhout, Anneke T; Cremers, Frans P M.
Afiliação
  • Cornelis SS; Department of Human Genetics, Radboud University Medical Center, 6525 Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 Nijmegen, the Netherlands.
  • Runhart EH; Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 Nijmegen, the Netherlands; Department of Ophthalmology, Radboud University Medical Center, 6525 Nijmegen, the Netherlands.
  • Bauwens M; Center for Medical Genetics Ghent and Department of Biomolecular Medicine, Ghent University and Ghent University Hospital, 9000 Ghent, Belgium.
  • Corradi Z; Department of Human Genetics, Radboud University Medical Center, 6525 Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 Nijmegen, the Netherlands.
  • De Baere E; Center for Medical Genetics Ghent and Department of Biomolecular Medicine, Ghent University and Ghent University Hospital, 9000 Ghent, Belgium.
  • Roosing S; Department of Human Genetics, Radboud University Medical Center, 6525 Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 Nijmegen, the Netherlands.
  • Haer-Wigman L; Department of Human Genetics, Radboud University Medical Center, 6525 Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 Nijmegen, the Netherlands.
  • Dhaenens CM; Univ. Lille, Inserm, CHU Lille, U1172-LilNCog-Lille Neuroscience and Cognition, 59000 Lille, France.
  • Vulto-van Silfhout AT; Department of Human Genetics, Radboud University Medical Center, 6525 Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 Nijmegen, the Netherlands.
  • Cremers FPM; Department of Human Genetics, Radboud University Medical Center, 6525 Nijmegen, the Netherlands; Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 Nijmegen, the Netherlands. Electronic address: frans.cremers@radboudumc.nl.
Am J Hum Genet ; 109(3): 498-507, 2022 03 03.
Article em En | MEDLINE | ID: mdl-35120629
Recurrence risk calculations in autosomal recessive diseases are complicated when the effect of genetic variants and their population frequencies and penetrances are unknown. An example of this is Stargardt disease (STGD1), a frequent recessive retinal disease caused by bi-allelic pathogenic variants in ABCA4. In this cross-sectional study, 1,619 ABCA4 variants from 5,579 individuals with STGD1 were collected and categorized by (1) severity based on statistical comparisons of their frequencies in STGD1-affected individuals versus the general population, (2) their observed versus expected homozygous occurrence in STGD1-affected individuals, (3) their occurrence in combination with established mild alleles in STGD1-affected individuals, and (4) previous functional and clinical studies. We used the sum allele frequencies of these severity categories to estimate recurrence risks for offspring of STGD1-affected individuals and carriers of pathogenic ABCA4 variants. The risk for offspring of an STGD1-affected individual with the "severe|severe" genotype or a "severe|mild with complete penetrance" genotype to develop STGD1 at some moment in life was estimated at 2.8%-3.1% (1 in 36-32 individuals) and 1.6%-1.8% (1 in 62-57 individuals), respectively. The risk to develop STGD1 in childhood was estimated to be 2- to 4-fold lower: 0.68%-0.79% (1 in 148-126) and 0.34%-0.39% (1 in 296-252), respectively. In conclusion, we established personalized recurrence risk calculations for STGD1-affected individuals with different combinations of variants. We thus propose an expanded genotype-based personalized counseling to appreciate the variable recurrence risks for STGD1-affected individuals. This represents a conceptual breakthrough because risk calculations for STGD1 may be exemplary for many other inherited diseases.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Transportadores de Cassetes de Ligação de ATP / Aconselhamento Genético Tipo de estudo: Etiology_studies / Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Humans Idioma: En Revista: Am J Hum Genet Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Holanda

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Transportadores de Cassetes de Ligação de ATP / Aconselhamento Genético Tipo de estudo: Etiology_studies / Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Humans Idioma: En Revista: Am J Hum Genet Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Holanda