scholarly journals Evaluation of chromosomal abnormalities from preimplantation genetic testing to the reproductive outcomes: a comparison between three different structural rearrangements based on next-generation sequencing

2021 ◽  
Author(s):  
Ping Yuan ◽  
Lingyan Zheng ◽  
Songbang Ou ◽  
Haijing Zhao ◽  
Ruiqi Li ◽  
...  
Keyword(s):  
Genetic Testing ◽  
Next Generation Sequencing ◽  
Chromosomal Abnormalities ◽  
Structural Rearrangements ◽  
Next Generation ◽  
Reproductive Outcomes ◽  
Preimplantation Genetic Testing ◽  
Generation Sequencing

scholarly journals Preimplantation Genetic Testing of Aneuploidy by Next Generation Sequencing: Association of Maternal Age and Chromosomal Abnormalities of Blastocyst

2019 ◽  
Vol 7 (24) ◽  
pp. 4427-4431 ◽  
Author(s):  
Tien-Truong Dang ◽  
Thi Mui Phung ◽  
Hoang Le ◽  
Thi-Bich-Van Nguyen ◽  
Thi Sim Nguyen ◽  
...  
Keyword(s):  
Genetic Testing ◽  
Next Generation Sequencing ◽  
Maternal Age ◽  
Chromosomal Abnormalities ◽  
Abnormal Chromosome ◽  
High Rate ◽  
Next Generation ◽  
Chromosome 11 ◽  
Preimplantation Genetic Testing ◽  
Generation Sequencing

BACKGROUND: Aneuploidy is a major cause of miscarriages and implantation failure. Preimplantation genetic testing for aneuploidy (PGT-A) by Next Generation Sequencing (NGS) is able to detect of the numeral and structural chromosomal abnormalities of embryos in vitro fertilization (IVF). AIM: This study was aimed to assess the relationship between maternal age and chromosomal abnormalities NGS technology. METHODS: 603 human trophectoderm (TE) biopsied samples were tested by Veriseq kit of Illumina. The relation of marternal age and chromosomal abnormality of blastocyst embryo was evaluated. RESULTS: Among the 603 TE samples, 247 samples (42.73%) presented as chromosomal abnormalities. The abnormalities occurred to almost chromosomes, and the most popular aneuploidy observed is 22. Aneuploidy rate from 0.87% in chromosome 11 to 6.06% in chromosome 22. The rate of abnormal chromosome increased dramatically in group of mother's ages over 37 (54.17%) comparing to group of mother's ages less than 37 (38.05%) (p < 0.000). The Abnormal chromosome and maternal age has a positive correlation with r = 0.4783 (p<0.0001). CONCLUSION: These results showed high rate abnormal chromosome and correlated with advanced maternal age of blastocyst embryos.

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