Analysis of chromosomes of embryos derived from translocation carriers during preimplantation genetic diagnosis cycles / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 875-878, 2018.
Artigo
em Chinês
| WPRIM
| ID: wpr-775815
ABSTRACT
OBJECTIVE@#To explore the effect of chromosomal translocations on the composition of embryonic chromosomes and its mechanism.@*METHODS@#For 52 couples with one partner carrying a chromosomal translocation, results of next generation sequencing of all embryos derived from 61 cycles were divided into different groups based on the type of translocations, gender of the carrier, and maternal age. Effect of parental chromosomal translocations on the composition of embryonic chromosomes of each group was analyzed.@*RESULTS@#A significant difference was found between carriers of reciprocal and Robertsonian translocations in terms of proportion of abnormal embryos and structurally normal chromosomes (63.3% vs. 27.5%, and 1.1% vs. 0.3%, respectively). Compared with male carriers, there was an increase in the rate of abnormalities for female carriers (67.2% vs. 58.3% for reciprocal translocations, and 45.5% vs. 13.8% for Robertsonian translocations). The risk for chromosomal abnormality also increased with the maternal age. No significant difference was found in the proportion of abnormal embryos between carriers divided by involvement of acrocentric chromosomes or terminal chromosomal breakpoints.@*CONCLUSION@#The types of parental translocation, gender of carrier, maternal age, and interchromosomal effect have certain effect on the composition of embryonic chromosomes.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Translocação Genética
/
Cromossomos Humanos
/
Idade Materna
/
Hibridização in Situ Fluorescente
/
Diagnóstico Pré-Implantação
/
Genética
/
Triagem de Portadores Genéticos
Tipo de estudo:
Estudo diagnóstico
Limite:
Feminino
/
Humanos
/
Masculino
/
Gravidez
Idioma:
Chinês
Revista:
Chinese Journal of Medical Genetics
Ano de publicação:
2018
Tipo de documento:
Artigo
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