2003
DOI: 10.1097/00006250-200305001-00032
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Fetal Sex Determination From Maternal Blood at 6 Weeks of Gestation When at Risk for 21-Hydroxylase Deficiency

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Cited by 13 publications
(14 citation statements)
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“…Since long-term human followup data are scarce, safety of prenatal treatment is not definitively proven, and prenatal dexamethasone in pregnancies at risk must still be considered an experimental therapy. However, advanced molecular techniques such as real-time PCR [Bartha et al, 2003;Avent and Chitty, 2006], quantitative fluorescent PCR [Cirigliano et al, 2009], pyrophosphorolysis-activated polymerization [Boon et al, 2007] or short PCR amplicons [Sikora et al, 2010] for analysis of free fetal DNA (ffDNA) from maternal blood, or amniotic fluid [Lapaire et al, 2007] for prenatal fetal sex determination may be able to change the approach to prenatal treatment [Maron and Bianchi, 2007]. In fact, fetal gender determination by means of these non-invasive methods has been reported to be achievable as early as at 5 weeks of gestation, based on a Y-specific DAZ repetitive probe [Stanghellini et al, 2006]; the accuracy of detection should become 100% by 8 weeks of gestation.…”
Section: Prenatal Treatmentmentioning
confidence: 99%
“…Since long-term human followup data are scarce, safety of prenatal treatment is not definitively proven, and prenatal dexamethasone in pregnancies at risk must still be considered an experimental therapy. However, advanced molecular techniques such as real-time PCR [Bartha et al, 2003;Avent and Chitty, 2006], quantitative fluorescent PCR [Cirigliano et al, 2009], pyrophosphorolysis-activated polymerization [Boon et al, 2007] or short PCR amplicons [Sikora et al, 2010] for analysis of free fetal DNA (ffDNA) from maternal blood, or amniotic fluid [Lapaire et al, 2007] for prenatal fetal sex determination may be able to change the approach to prenatal treatment [Maron and Bianchi, 2007]. In fact, fetal gender determination by means of these non-invasive methods has been reported to be achievable as early as at 5 weeks of gestation, based on a Y-specific DAZ repetitive probe [Stanghellini et al, 2006]; the accuracy of detection should become 100% by 8 weeks of gestation.…”
Section: Prenatal Treatmentmentioning
confidence: 99%
“…Esto va en línea con las numerosas publicaciones que demuestran la alta sensibilidad y especificidad de esta técnica, lo que ha motivado reproducirla en numerosos laboratorios alrededor del mundo, llevando la implementación de esta técnica a un nivel clínico (3,7,11,12). El diagnóstico precoz del sexo fetal en el primer trimestre puede reducir la ansiedad de los padres portadores de enfermedades ligadas al cromosoma X o evitar la exposición innecesaria a los esteroides en embarazos en riesgo de déficit de 21 hidroxilasa (8).…”
Section: Discussionunclassified
“…Más allá de determinar en estadios más tempranos el sexo fetal de lo que se hace en la actualidad, el diagnostico del sexo fetal está teniendo un gran impacto en el manejo de los desordenes genéticos ligados al cromosoma X (3) o para guiar la terapia prenatal en los casos de riesgo para hiperplasia suprarrenal congénita, en donde el déficit completo de 21-alfa-hidroxilasa, puede producir masculinización de genitales femeninos fetales (8). Otros test diagnósticos que utilizan esta tecnología están actualmente en desarrollo para su uso en clínica, por ejemplo, la identificación del tipo de plaquetas en la trombocitopenia aloinmune y la detección de mutaciones paternas en enfermedad recesiva como la fibrosis quística, talasemias o en enfermedades autosómicas dominantes de origen paterno (9).…”
Section: Introductionunclassified
“…Cette nouvelle stratégie [25] est maintenant adoptée par un très grand nombre de centres de génétique. Enfin, la possibilité de déterminer le sexe du foetus très précocement va permettre de simplifier la prise en charge d'autres pathologies foetales telles que l'hyperplasie congénitale des surrénales [26,27].…”
Section: Détermination Du Sexe Foetalunclassified