نتایج جستجو برای: chorionic villi sampling cvs
تعداد نتایج: 224391 فیلتر نتایج به سال:
OBJECTIVE To assess, in a randomized trial, the safety and accuracy of amniocentesis and transabdominal chorionic villus sampling (CVS) performed at 11-14 weeks of gestation, given that this time frame is increasingly relevant to early trisomy screening. METHODS We compared amniocentesis with CVS from 77 to 104 days of gestation in a randomized trial in a predominantly advanced maternal age p...
The global gene expression profiles of the decidua and chorionic villi of early human pregnancies were analysed by using cDNA microarray technology. Decidual and villous placental tissues were obtained from first trimester abortus and mRNA was extracted for cDNA microarray analysis. The human cDNA microarray [9600 clones, including known regulatory genes and expressed sequence tags (EST)] with ...
BACKGROUND First trimester screening (FTS) for Down syndrome combines measurement of nuchal translucency, free beta-human chorionic gonadotrophin and pregnancy-associated plasma protein-A (PAPP-A). The aim of this study was to undertake a detailed analysis of FTS results in singleton pregnancies conceived using assisted reproductive technologies (ART) and non-ART pregnancies. METHODS A record...
OBJECTIVE This study reports on the clinical implementation of cell-free DNA (cfDNA) testing, contingent on the results of the combined test, in screening for fetal trisomies 21, 18 and 13 in two UK National Health Service hospitals. Women with a combined-test risk of ≥ 1:100 (high risk) were offered the options of chorionic villus sampling (CVS), cfDNA testing or no further testing and those w...
Abstract. This article is devoted to the results of studies trophoblast during gestation 9-12 weeks. study a fragment series immunohistochemical with TORCH infection, which are scheduled be carried out at different gestational dates. Purpose – in various types using method establish features expression metalloproteinase-2 abortion material period weeks pregnancy infection compared observations ...
Prenatal sex determination in suspicious cases of X-linked recessive diseases by the amelogenin gene
OBJECTIVE(S) To determine the fetal discernment in suspected cases of sex linked recessive disease in the first trimester of pregnancy. MATERIALS AND METHODS After collection of 100 Chorionic Villi samples, the DNAs were extracted and baby gender was determined. Meanwhile, after increasing the sensitivity, the system was able to detect the sex of each cell which was obtained by biopsy. RESU...
Chagas' disease is caused by the haemophlagelated protozoan Trypanosoma cruzi (T. cruzi). During congenital transmission the parasite breaks down the placental barrier, however studies about the physiopathology of this process are scarce. Different signal transduction pathways are involved during cell invasion of the parasite. However, the possible role of those processes during tissue infectio...
BACKGROUND Cases of ectopic pregnancy (EP) following levonorgestrel (LNG) emergency contraception (EC) failure were reported, however, the effects of LNG on tubal microenvironment or chorionic villi in EP have not yet been documented. METHODS Fifty-five women with tubal pregnancy were divided into two groups according to whether LNG-EC was administrated during the cycle of conception. The ser...
Leukocyte adhesion deficiency type-1(LAD-1) is one of the immunodeficiency autosomal recessive diseases that results from mutation in integrin, beta 2 (complement component 3 receptor 3 and 4 subunit) ITGB2 gene. The aim of this study was to investigate molecular prenatal diagnosis of LAD-1. Four pregnant women with five fetuses (one pregnancy was twin) with clinical and laboratory diagnosis of...
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