Incidental Detection of a Chromosomal Aberration by Array-CGH in an Early Prenatal Diagnosis for Monogenic Disease on Coelomic Fluid

Autor: Margherita Vinciguerra, Filippo Leto, Filippo Cassarà, Viviana Tartaglia, Michela Malacarne, Domenico Coviello, Valentina Cigna, Emanuela Orlandi, Francesco Picciotto, Gaspare Cucinella, Emanuela Salzano, Maria Piccione, Aurelio Maggio, Antonino Giambona
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Life, Vol 13, Iss 1, p 20 (2022)
Druh dokumentu: article
ISSN: 2075-1729
DOI: 10.3390/life13010020
Popis: Background: Turner syndrome is a rare genetic condition in which a female is partly or completely missing an X chromosome. Signs and symptoms vary among those affected. In fetuses that survive at birth and without congenital malformations, the prognosis is usually positive, but it has high lethality in utero, especially in the first trimester of pregnancy. Methods: We report a case of monosomy X detected during a prenatal diagnosis for beta thalassemia on coelomic fluid (CF) at the VIII week of gestation. Beta globin gene analysis, whole genome amplification (WGA), quantitative fluorescent PCR and array comparative genomic hybridization (array-CGH) were performed on DNA extracted from CF. Results: A monoallelic pattern of all Short Tandem Repeats mapped on the X chromosome was found and array-CGH performed on WGA from a few fetal erythroblasts confirmed monosomy X. Conclusion: This report underlines the importance of an early prenatal diagnosis and the countless potentialities of array-CGH that could make definition of molecular karyotype possible from a few fetal cells, unlike conventional cytogenetic techniques that require a greater cellular content. This is the first report of a molecular karyotype obtained from two cells selected by micromanipulation of CF and defined at such an early gestational age.
Databáze: Directory of Open Access Journals
Nepřihlášeným uživatelům se plný text nezobrazuje