The role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy.
PURPOSE OF REVIEW: Use of preimplantation genetic diagnosis to improve in-vitro fertilization outcomes is reviewed. RECENT FINDINGS: Many embryos produced in vitro contain chromosomal abnormalities and have little potential for forming a viable pregnancy. The most commonly used method for preimplan...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2009
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| _version_ | 1826280246883647488 |
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| author | Munné, S Howles, C Wells, D |
| author_facet | Munné, S Howles, C Wells, D |
| author_sort | Munné, S |
| collection | OXFORD |
| description | PURPOSE OF REVIEW: Use of preimplantation genetic diagnosis to improve in-vitro fertilization outcomes is reviewed. RECENT FINDINGS: Many embryos produced in vitro contain chromosomal abnormalities and have little potential for forming a viable pregnancy. The most commonly used method for preimplantation genetic diagnosis involves embryo biopsy on day 3 of development, followed by fluorescence in-situ hybridization analysis of 5-12 chromosomes. However, positive results have been more common with single-cell biopsy and the analysis of nine or more chromosomes, including 15, 16, 21, and 22. Comparative genomic hybridization, array-comparative genomic hybridization, and single-nucleotide polymorphism arrays analyze all chromosomes and, although technically demanding and requiring experience for successful use, improve the selection potential of preimplantation genetic diagnosis and minimize error rates. Recent data suggest that biopsy at the blastocyst stage may allow sampling of representative genetic material without compromising embryo viability. The optimal strategy for aneuploidy screening using preimplantation genetic diagnosis seems to be blastocyst biopsy at 5 days and comprehensive chromosome analysis (comparative genomic hybridization, array-comparative genomic hybridization, single-nucleotide polymorphism array). SUMMARY: The use of preimplantation genetic diagnosis to assist the identification and preferential transfer of healthy euploid embryos should improve implantation rates, reduce miscarriages and trisomic offspring, and ultimately lead to an increase in live birth rates. |
| first_indexed | 2024-03-07T00:10:49Z |
| format | Journal article |
| id | oxford-uuid:792c7fbc-e9be-452c-955b-dc4ad431d478 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:10:49Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:792c7fbc-e9be-452c-955b-dc4ad431d4782022-03-26T20:35:37ZThe role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:792c7fbc-e9be-452c-955b-dc4ad431d478EnglishSymplectic Elements at Oxford2009Munné, SHowles, CWells, D PURPOSE OF REVIEW: Use of preimplantation genetic diagnosis to improve in-vitro fertilization outcomes is reviewed. RECENT FINDINGS: Many embryos produced in vitro contain chromosomal abnormalities and have little potential for forming a viable pregnancy. The most commonly used method for preimplantation genetic diagnosis involves embryo biopsy on day 3 of development, followed by fluorescence in-situ hybridization analysis of 5-12 chromosomes. However, positive results have been more common with single-cell biopsy and the analysis of nine or more chromosomes, including 15, 16, 21, and 22. Comparative genomic hybridization, array-comparative genomic hybridization, and single-nucleotide polymorphism arrays analyze all chromosomes and, although technically demanding and requiring experience for successful use, improve the selection potential of preimplantation genetic diagnosis and minimize error rates. Recent data suggest that biopsy at the blastocyst stage may allow sampling of representative genetic material without compromising embryo viability. The optimal strategy for aneuploidy screening using preimplantation genetic diagnosis seems to be blastocyst biopsy at 5 days and comprehensive chromosome analysis (comparative genomic hybridization, array-comparative genomic hybridization, single-nucleotide polymorphism array). SUMMARY: The use of preimplantation genetic diagnosis to assist the identification and preferential transfer of healthy euploid embryos should improve implantation rates, reduce miscarriages and trisomic offspring, and ultimately lead to an increase in live birth rates. |
| spellingShingle | Munné, S Howles, C Wells, D The role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy. |
| title | The role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy. |
| title_full | The role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy. |
| title_fullStr | The role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy. |
| title_full_unstemmed | The role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy. |
| title_short | The role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy. |
| title_sort | role of preimplantation genetic diagnosis in diagnosing embryo aneuploidy |
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