Genetic counseling of high‐risk isolated populations: A worldwide challenge
| Autor: | Tzipora C. Falik-Zaccai, Nurit Edri, Nehama Cohen-Kfir, Irith Weissman, Lena Sagi-Dain, Hadas Shasha Lavski, Limor Kalfon, Amir Peleg |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Proband Embryology medicine.medical_specialty Carrier signal business.industry Health Toxicology and Mutagenesis Medical record Genetic counseling Consanguinity Disease 030105 genetics & heredity Toxicology medicine.disease 03 medical and health sciences 030104 developmental biology Family medicine Pediatrics Perinatology and Child Health medicine Epidermolysis bullosa business Congenital nephrotic syndrome Developmental Biology |
| Zdroj: | Birth Defects Research. 112:316-320 |
| ISSN: | 2472-1727 |
| DOI: | 10.1002/bdr2.1633 |
| Popis: | BACKGROUND Isolated populations with high rates of consanguinity and genetic disorders can be found in most parts of the world. The aim of our paper was to highlight the unique challenges faced in genetic counseling for such patients and to discuss the ways to facilitate the difficulties, with an emphasis on the crucial role of electronic medical records (EMR). CASE We report a couple presenting with elevated maternal alpha-fetoprotein in three pregnancies, in which an erroneous diagnosis of epidermolysis bullosa was established in the past and carried along through several years. The live born proband had no evidence of skin disease; however, soon after birth she was diagnosed with congenital nephrotic syndrome. Sequencing of NPHS1 gene yielded a homozygous likely pathogenic genetic variant c.2104G > A (p.Gly702Arg). Population screening performed in the village of residence revealed a carrier frequency of 1-47. This high frequency justified including testing for the founder genetic variant in the national program for population screening. CONCLUSIONS Our report highlights the caution, suspicion and time investment which should be practiced and addressed in genetic counseling of high-risk isolated populations. Using EMR may facilitate reaching the correct diagnosis, enable accurate genetic counseling and provide information for decision-making to the couples, as well as "save" a large community from devastating diseases. |
| Databáze: | OpenAIRE |
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