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NGS-Based Assay for the Identification of Individuals Carrying Recessive Genetic Mutations in Reproductive Medicine. | LitMetric

AI Article Synopsis

  • Next-generation sequencing (NGS) has been used to create a new carrier screening test (qCarrier test) that examines 200 genes linked to 368 genetic disorders, aimed primarily at gamete donation programs.
  • The test was validated with over 1,300 participants and has shown over 99% sensitivity in detecting various genetic mutations, allowing for the identification of carriers and exclusion of certain donors based on genetic risk.
  • The results indicated that 56% of individuals tested were carriers of at least one genetic condition, highlighting the importance of genetic counseling in managing reproductive risks and ensuring healthy pregnancies.

Article Abstract

Next-generation sequencing (NGS) has the capacity of carrier screening in gamete donation (GD) programs. We have developed and validated an NGS carrier-screening test (qCarrier test) that includes 200 genes associated with 368 disorders (277 autosomal recessive and 37 X-linked). Carrier screening is performed on oocyte donation candidates and the male partner of oocyte recipient. Carriers of X-linked conditions are excluded from the GD program, whereas donors are chosen who do not carry mutations for the same gene/disease as the recipients. The validation phase showed a high sensitivity (>99% sensitivity) detecting all single-nucleotide variants, 13 indels, and 25 copy-number variants included in the validation set. A total of 1,301 individuals were analysed with the qCarrier test, including 483 candidate oocyte donors and 635 receptor couples, 105 females receiving sperm donation, and 39 couples seeking pregnancy. We identified 56% of individuals who are carriers for at least one genetic condition and 1.7% of female donors who were excluded from the program due to a carrier state of X-linked conditions. Globally, 3% of a priori assigned donations had a high reproductive risk that could be minimized after testing. Genetic counselling at different stages is essential for helping to facilitate a successful and healthy pregnancy.

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Source
http://dx.doi.org/10.1002/humu.22989DOI Listing

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