Circulating microRNAs as clinical biomarkers in the predictions of pregnancy complications.

Predicting pregnancy complications is a major topic for clinicians and biologists for maternal and fetal monitoring. Noninvasive biomarkers in maternal blood such as circulating microRNAs (miRNAs) are promising molecules to predict pregnancy disorders. miRNAs are noncoding short RNAs that regulate mRNA expression by repressing the translation or cleaving the transcript.

Non-invasive prenatal diagnosis of monogenic disorders: an optimized protocol using MEMO qPCR with miniSTR as internal control.

Background: Analysis of circulating cell-free fetal DNA (cffDNA) in maternal plasma is very promising for early diagnosis of monogenic diseases. However, this approach is not yet available for routine use and remains technically challenging because of the low concentration of cffDNA, which is swamped by the overwhelming maternal DNA.

Methods: To make clinical applications more readily accessible, we propose a new approach based on mutant enrichment with 3'-modified oligonucleotides (MEMO) PCR along with real-time PCR to selectively amplify from the maternal blood the paternally inherited fetal allele that is not present in the maternal genome.

[Combined screening for Down syndrome in Marseille multidisciplinary prenatal centers].

Combined screening for trisomy 21 (CS) is established since January 2010 in multidisciplinary centers for prenatal screening in Marseille. Our work investigates its implementation. To date, the false positive rate is 3.

Magnetic resonance imaging in the prenatal diagnosis of congenital diarrhea.

Objective: Congenital diarrhea is very rare, and postnatal diagnosis is often made once the condition has caused potentially lethal fluid loss and electrolyte disorders. Prenatal detection is important to improve the immediate neonatal prognosis. We aimed to describe the prenatal ultrasound and magnetic resonance (MRI) imaging findings in fetuses with congenital diarrhea.