Dispermy--origin of diandric triploidy: Brief Communication
نویسندگان
چکیده
منابع مشابه
Triploidy—Observations in 154 Diandric Cases
Hydatidiform moles (HMs) are abnormal human pregnancies with vesicular chorionic villi, imposing two clinical challenges; miscarriage and a risk of gestational trophoblastic neoplasia (GTN). The parental type of most HMs are either diandric diploid (PP) or diandric triploid (PPM). We consecutively collected 154 triploid or near-triploid samples from conceptuses with vesicular chorionic villi. W...
متن کاملRecurrent triploidy of maternal origin.
We report the occurrence of triploid preimplantation embryos following in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in a woman with two previously-identified triploid conceptuses which spontaneously underwent fetal demise at 10 and 23 weeks' gestation. An error in maternal meiosis II is proposed as the most likely cause.
متن کاملDiploid sperm and the origin of triploidy.
Trisomy 16, the 45,X monosomy and triploidy are the more frequent chromosome anomalies in spontaneous abortions. Earlier estimations, based on frequencies of diandric triploidy at conception, resulted in a good correlation with the frequencies of diploid sperm in infertile males (up to 1.9%). Recent data have shown that most diandric triploids originate by dispermy, although 8.3% of them are pr...
متن کاملPrenatal Diagnosis of Triploidy in Fetus with Unexpected Chromosomal Translocation of Maternal Origin
Triploidy is a lethal chromosomal abnormality. Foetuses with triploid condition have a tendency to die in early conception and very few survive to term. In this study, we report the prenatal diagnosis of fetal triploidy with unexpected chromosomal translocation. A 27 years old women was referred to our clinical cytogenetic department due to history of previous conceptus with intrauterine growth...
متن کاملPrenatal detection of fetal triploidy from cell-free DNA testing in maternal blood.
OBJECTIVE To investigate potential performance of cell-free DNA (cfDNA) testing in maternal blood in detecting fetal triploidy. METHODS Plasma and buffy coat samples obtained at 11-13 weeks' gestation from singleton pregnancies with diandric triploidy (n=4), digynic triploidy (n=4), euploid fetuses (n=48) were sent to Natera, Inc. (San Carlos, Calif., USA) for cfDNA testing. Multiplex polymer...
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ژورنال
عنوان ژورنال: Human Reproduction
سال: 2002
ISSN: 1460-2350
DOI: 10.1093/humrep/17.12.3037