Clinical effect of chromosome balanced translocation study of the effect on genomic stability
2022
Gao Ming | Wang Lijuan | Zou Yang | Xie Hongqiang | Liu Xiaowei | Huang Sexin | Gao Yuan
Objective To explore the effect of chromosome balanced translocation on genomic stability. Methods Abnormal embryos from patients with preimplantation genetic testing for structural rearrangements (PGTSR) indication between January 2019 and December 2020 in Reproductive Hospital Affiliated of Shandong University were divided into two groups. The experimental group was the abnormal chromosome derived from the carriers of the balanced translocation, and the control group was the abnormal chromosome derived from the spouse of the balanced translocation carriers. The parental origin of abnormal chromosomes was identified by haploid analysis to explore the effect of balanced translocation on genomic stability. Results The results of parental origin of non-translocation related abnormal chromosomal fragments showed the experimental group was significantly higher than the control group. As for the whole and mosaic chromosomal abnormality，there was no significant difference between the two groups. Conclusion During meiosis, balanced translocation could affect genome stability by increasing abnormal chromosomal fragments.
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