Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers
Patterns of meiotic chromosome segregation were analyzed in cleavage stage and blastocyst stage human embryos from couples with autosomal reciprocal translocations (ART). The influence of quadrivalent asymmetry degree, the presence of terminal breakpoints, and the involvement of acrocentric chromoso...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Pensoft Publishers
2024-01-01
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| Series: | Comparative Cytogenetics |
| Online Access: | https://compcytogen.pensoft.net/article/115070/download/pdf/ |
| _version_ | 1827375422507057152 |
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| author | Ziravard N. Tonyan Irina L. Puppo Alsu F. Saifitdinova Tatyana V. Vavilova Andrey S. Glotov |
| author_facet | Ziravard N. Tonyan Irina L. Puppo Alsu F. Saifitdinova Tatyana V. Vavilova Andrey S. Glotov |
| author_sort | Ziravard N. Tonyan |
| collection | DOAJ |
| description | Patterns of meiotic chromosome segregation were analyzed in cleavage stage and blastocyst stage human embryos from couples with autosomal reciprocal translocations (ART). The influence of quadrivalent asymmetry degree, the presence of terminal breakpoints, and the involvement of acrocentric chromosomes in the rearrangement were analyzed to evaluate their contribution to the formation of non-viable embryos with significant chromosomal imbalance due to pathological segregation patterns and to assess the selection of human embryos by the blastocyst stage. A selection of viable embryos resulting from alternate and adjacent-1 segregation and a significant reduction in the detection frequency of the 3 : 1 segregation pattern were observed in human embryos at the blastocyst stage. The presence of terminal breakpoints increased the frequency of 3 : 1 segregation and was also associated with better survival of human embryos resulting from adjacent-1 mode, reflecting the process of natural selection of viable embryos to the blastocyst stage. The demonstrated patterns of chromosome segregation and inheritance of a balanced karyotype in humans will contribute to optimizing the prediction of the outcomes of in vitro fertilization programs and assessing the risks of the formation of unbalanced embryos for ART carriers. |
| first_indexed | 2024-03-08T11:50:43Z |
| format | Article |
| id | doaj.art-b7c660bcebb44a46adb10352c2d97f4c |
| institution | Directory Open Access Journal |
| issn | 1993-078X |
| language | English |
| last_indexed | 2024-03-08T11:50:43Z |
| publishDate | 2024-01-01 |
| publisher | Pensoft Publishers |
| record_format | Article |
| series | Comparative Cytogenetics |
| spelling | doaj.art-b7c660bcebb44a46adb10352c2d97f4c2024-01-24T10:52:00ZengPensoft PublishersComparative Cytogenetics1993-078X2024-01-011811310.3897/compcytogen.18.115070115070Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriersZiravard N. Tonyan0Irina L. Puppo1Alsu F. Saifitdinova2Tatyana V. Vavilova3Andrey S. Glotov4Almazov National Medical Research CentreInternational Centre for Reproductive MedicineInternational Centre for Reproductive MedicineAlmazov National Medical Research CentreD. O. Ott Research Institute of Obstetrics, Gynaecology and ReproductologyPatterns of meiotic chromosome segregation were analyzed in cleavage stage and blastocyst stage human embryos from couples with autosomal reciprocal translocations (ART). The influence of quadrivalent asymmetry degree, the presence of terminal breakpoints, and the involvement of acrocentric chromosomes in the rearrangement were analyzed to evaluate their contribution to the formation of non-viable embryos with significant chromosomal imbalance due to pathological segregation patterns and to assess the selection of human embryos by the blastocyst stage. A selection of viable embryos resulting from alternate and adjacent-1 segregation and a significant reduction in the detection frequency of the 3 : 1 segregation pattern were observed in human embryos at the blastocyst stage. The presence of terminal breakpoints increased the frequency of 3 : 1 segregation and was also associated with better survival of human embryos resulting from adjacent-1 mode, reflecting the process of natural selection of viable embryos to the blastocyst stage. The demonstrated patterns of chromosome segregation and inheritance of a balanced karyotype in humans will contribute to optimizing the prediction of the outcomes of in vitro fertilization programs and assessing the risks of the formation of unbalanced embryos for ART carriers.https://compcytogen.pensoft.net/article/115070/download/pdf/ |
| spellingShingle | Ziravard N. Tonyan Irina L. Puppo Alsu F. Saifitdinova Tatyana V. Vavilova Andrey S. Glotov Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers Comparative Cytogenetics |
| title | Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers |
| title_full | Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers |
| title_fullStr | Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers |
| title_full_unstemmed | Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers |
| title_short | Assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers |
| title_sort | assessment of quadrivalent characteristics influencing chromosome segregation by analyzing human preimplantation embryos from reciprocal translocation carriers |
| url | https://compcytogen.pensoft.net/article/115070/download/pdf/ |
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