Genetic Disease Clinical Trial
Official title:
Technological Development and Clinical Parallel Testing of Preimplantation Genetic Testing for Generalization
Preimplantation genetic testing (PGT) has three different testings according to the type of genetic disease, which was classified as PGT-M, PGT-SR and PGT-A. If the couple is tested for two different genetic diseases at the same time, it is necessary to customize the probe and adopt different detection methods, which increases the cost and cycle of testing. Advanced expert pre-experimental analysis is required for PGT-M in couples with monogenic disease. If the family members are unavailable, only the polar bodies, sperms or affected embryos can be used to analysis, which not only increases the risk of failure, but also increases the difficulty of detection. At present, BGI has developed a new single-tube complete Long fragment whole genome sequencing (stLFR-WGS) technology, which uses the same molecular tag on the short read sequencing fragments from the same long DNA molecule to achieve accurate short read sequencing to obtain long DNA information. Multiple genetic abnormalities such as gene variation, chromosome aneuploidy and chromosome structure rearrangement can be directly detected in embryos without pre-experiment of family members, so as to achieve universal normalization of the three PGT methods and solve the PGT detection needs of patients with multiple genetic diseases.
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