Application of single nucleotide polymorphism-based array analysis for prenatal diagnosis of a fetus with de novo derivative chromosome / 中华医学遗传学杂志
Chinese Journal of Medical Genetics
;
(6): 678-681, 2016.
Artigo
em Chinês
| WPRIM
| ID: wpr-345381
ABSTRACT
<p><b>OBJECTIVE</b>To analyze a fetus with increased nuchal translucency and nuchal fold, and to assess the recurrence risk for her family and provide a basis for prenatal diagnosis.</p><p><b>METHODS</b>G-banded karyotyping and single nucleotide polymorphism-based array (SNP-Array) analysis were used to analyze the fetus and her parents.</p><p><b>RESULTS</b>SNP-Array analysis has detected a 41.04 Mb duplication at Xp22.33p11.4 and a 30.51 Mb duplication at 13q31.3q34 in the fetus. G-banding karyotyping indicated that the fetus had a karyotype of 46,X,der(X)(13qter-13q31Xp11.4-Xp22.3Xp22.3-Xqter). Her parents had normal results for both G-banding karyotyping and SNP-Array analysis, suggesting that the fetus has carried a de novo derivative chromosome X.</p><p><b>CONCLUSION</b>SNP-Array combined with G-banding karyotyping is helpful to confirm the composition and connection type of de novo derivative chromosome, which can improve the accuracy of diagnosis and is valuable for the evaluation of recurrence risk.</p>
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DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Diagnóstico Pré-Natal
/
Aberrações dos Cromossomos Sexuais
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Anormalidades Congênitas
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Bandeamento Cromossômico
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Análise de Sequência com Séries de Oligonucleotídeos
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Polimorfismo de Nucleotídeo Único
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Cromossomos Humanos X
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Duplicação Cromossômica
/
Feto
/
Genética
Tipo de estudo:
Estudo diagnóstico
Limite:
Adulto
/
Feminino
/
Humanos
/
Masculino
/
Gravidez
Idioma:
Chinês
Revista:
Chinese Journal of Medical Genetics
Ano de publicação:
2016
Tipo de documento:
Artigo
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