Expanded targeted preconception screening panel in Israel: findings and insights.
J Med Genet
; 61(8): 783-787, 2024 Jul 19.
Article
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| MEDLINE
| ID: mdl-38719349
ABSTRACT
BACKGROUND:
We aimed to analyse the efficacy and added value of a targeted Israeli expanded carrier screening panel (IL-ECSP), beyond the first-tier test covered by the Israeli Ministry of Health (IMOH) and the second-tier covered by the Health Maintenance Organisations (HMOs).METHODS:
A curated variant-based IL-ECSP, tailored to the uniquely diverse Israeli population, was offered at two tertiary hospitals and a major genetics laboratory. The panel includes 1487 variants in 357 autosomal recessive and X-linked genes.RESULTS:
We analysed 10 115 Israeli samples during an 18-month period. Of these, 6036 (59.7%) were tested as couples and 4079 (40.3%) were singles. Carriers were most frequently identified with mutations in the following genes GJB2/GJB6 (122 allele frequency), CFTR (128), GBA (134), TYR (139), PAH (150), SMN1 (152) and HEXA (156). Of 3018 couples tested, 753 (25%) had no findings, in 1464 (48.5%) only one partner was a carrier, and in 733 (24.3%) both were carriers of different diseases. We identified 79 (2.6%) at-risk couples, where both partners are carriers of the same autosomal recessive condition, or the female carries an X-linked disease. Importantly, 48.1% of these would not have been detected by ethnically-based screening tests currently provided by the IMOH and HMOs, for example, variants in GBA, TYR, PAH and GJB2/GJB6.CONCLUSION:
This is the largest cohort of targeted ECSP testing, tailored to the diverse Israeli population. The IL-ECSP expands the identification of couples at risk and empowers their reproductive choices. We recommend endorsing an expanded targeted panel to the National Genetic Carrier Screening programme.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Pruebas Genéticas
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Conexina 26
Límite:
Adult
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Female
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Humans
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Male
País/Región como asunto:
Asia
Idioma:
En
Revista:
J Med Genet
Año:
2024
Tipo del documento:
Article
País de afiliación:
Israel