Detection of trisomy 21 by fluorescent in-situ hybridization for preimplantation genetic diagnosis
Abstract：Objective To avoid transferring embryo with chromosomal aberration and improve quality of IVF-ET.Methods Our research was performed by fluorescent in-situ hybridization(FISH) for preimplantation diagnosis of trisomy 21 in 20 couples who were over 35 years old.The special DSCR Cosmid DNA probe was applied.Results It was successful to analyse chromosomes from a single cell in 10 of 20 couples.There were normal embryos in 8 of 10 couples and their embryos were transferred.2 of 8 couples had pregnancy,but one miscarriage occurred and the other was in a normal pregnancy.Trisomy 21 was detected in 2 of 10 couples and no embryo was transferred.Conclusion It is necessary to perform preimplantation genetic diagnosis for IVF patients of advanced maternal age.
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Publication Date：2001-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：2( 297-298 )