Analysis of a family with recurrent fetal copy number variations in 1p31.1 / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 1127-1129, 2019.
Artigo
em Chinês
| WPRIM
| ID: wpr-800870
ABSTRACT
Objective@#To analyze a family with recurrent fetal copy number variations (microdeletion and microduplication, respectively) of 1p31.1 using single nucleotide polymorphism-based array (SNP-array) and G banding chromosomal karyotyping.@*Methods@#Amniocentesis and chorionic villus sampling were performed for a woman during the two pregnancies. Whole genome SNP-array was used to detect genomic imbalance of the fetus. The couple was also subjected to G-banding chromosomal analysis and SNP-array analysis.@*Results@#SNP-array showed a 1p31.1 (70 164 686-83 474 843)×1 and a 1p31.1 (70 164 686-83 479 747) × 3 in the fetuses during the two pregnancies, respectively. SNP array results of the couple appeared to be normal. The mother of the fetuses had a 46, XX, inv(1)(p31.1p32.1) karyotype.@*Conclusion@#The paracentric inversion in chromosome 1 in the gravida probably underlies the recurrent 1p31.1 copy number variations in the fetuses. SNP-array combined with G banding chromosomal analysis are suitable for prenatal diagnosis for recurrent microdeletion and microduplication in the same chromosomal region, and can provide detailed information for genetic counseling.
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DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Medical Genetics
Ano de publicação:
2019
Tipo de documento:
Artigo
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