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Chinese Journal of Medical Genetics ; (6): 577-580, 2021.
Artigo em Chinês | WPRIM | ID: wpr-879630

RESUMO

OBJECTIVE@#To explore the cause of abortion and strategy of prenatal diagnosis for pregnant women with high risk for chromosomal abnormalities by using copy number variation sequencing (CNV-seq) and short tandem repeats (STR) analysis.@*METHODS@#A total of 36 samples were collected, including amniotic fluid, abortion tissue, whole blood, chorionic villi and umbilical cord blood. CNV-seq and STR analysis were carried out to detect microdeletions, microduplications, chromosomal aneuploidies, mosaicisms and triploidies.@*RESULTS@#Among all samples, 1 was detected with 4p15.1p16.3 and 14q11.1q22.1 duplication, 1 was detected with 19p13.3 deletion, 8 were detected with chromosomal aneuploidies, 4 were detected with mosaicisms, two were detected with triploidies. No definite pathogenic CNVs were detected in 20 samples, which yielded a positive detection rate of 44.44%.@*CONCLUSION@#As a high-throughput detection method, CNV-seq has the advantages of rapidity, simplicity and high accuracy. It may suit prenatal diagnosis and analysis of abortion factors in combination with STR analysis.


Assuntos
Feminino , Humanos , Gravidez , Aborto Espontâneo/genética , Variações do Número de Cópias de DNA , Cariotipagem , Repetições de Microssatélites , Diagnóstico Pré-Natal
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