Abstract:
:Seeking to optimize a novel method of isolating rare fetal erythroid cells in cultures from maternal blood, we have explored the effects of serum supplement on fetal and adult erythropoiesis. We used flow cytometry and sorting after labelling with antibodies to fetal haemoglobin (HbF) and adult haemoglobin (HbA). In adult blood-derived cultures, most nucleated red cells accumulated either only adult haemoglobin (F-A+) or a combination of fetal and adult haemoglobin (F+A+). Only a few were F+A-. Serum affected the proportions of adult cells expressing fetal haemoglobin (both F+A- and F+A+), which were minimized, but not eliminated altogether, with the use of charcoal-treated sera at low concentrations. In contrast, the expansion of fetal red cells, which made only fetal haemoglobin (F+A-) during at least one week of culture, was strongly increased with the use of charcoal treated sera, due to the removal of a charcoal-absorbable inhibitor. In co-cultures of fetal and adult erythroid cells, fetal cells could be enriched in the order of 200-fold by flow sorting with the F+A- criterion. However, since adult F+A- cells could not be suppressed completely, the purity of sorted fetal cells still depended on the relative numbers of fetal and maternal erythroid clonogenic cells in the blood sample. Thus, we demonstrate a method by which fetal nucleated red cells potentially present in maternal blood cultures can be identified and isolated from the vast majority of maternal erythroid cells, based on their correlated contents of fetal and adult haemoglobin.
journal_name
Prenat Diagnjournal_title
Prenatal diagnosisauthors
Bohmer RM,Zhen D,Bianchi DWsubject
Has Abstractpub_date
1999-07-01 00:00:00pages
628-36issue
7eissn
0197-3851issn
1097-0223pii
10.1002/(SICI)1097-0223(199907)19:7<628::AID-PD601journal_volume
19pub_type
杂志文章abstract::An increasing number of cytogenetic prenatal diagnoses are performed on chorionic villus samplings. The accuracy of this method is influenced by chromosomal mosaicism, mostly confined to direct preparation methods. Especially those investigators who have experienced false-negative and false-positive findings propagate...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970131007
更新日期:1993-10-01 00:00:00
abstract:OBJECTIVE:The objective of this article is to evaluate the longitudinal changes in uterine artery Doppler pulsatility index (UtA-PI) in pregnancies complicated with early onset intrauterine growth restriction (IUGR). METHOD:Case-control study comparing UtA-PI from 20 to 34 weeks gestation in pregnancies affected by IU...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4476
更新日期:2014-12-01 00:00:00
abstract::A pregnant woman with indeterminate Duchenne muscular dystrophy (DMD) carrier status, but with DMD diagnosed in her deceased brother (unavailable for study), presented for prenatal diagnosis, intending to continue the pregnancy only if proven unaffected with DMD with near absolute certainty. Creatine kinase (CK) assay...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970101104
更新日期:1990-11-01 00:00:00
abstract:OBJECTIVE:Genetic carrier screening has the potential to identify couples at risk of having a child affected with an autosomal recessive or X-linked disorder. However, the current prevalence of carrier status for these conditions in developing countries is not well defined. This study assesses the prevalence of carrier...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5656
更新日期:2020-04-01 00:00:00
abstract::In order to keep subscribers up-to-date with the latest developments in their field, John Wiley & Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of prenatal diagnosis. Each bibliography is divided into 17 sections: 1 Reviews;...
journal_title:Prenatal diagnosis
pub_type:
doi:10.1002/pd.1693
更新日期:2007-11-01 00:00:00
abstract::In 3 fetuses affected by congenital chloride diarrhoea there were characteristic prenatal ultrasonic findings. In all cases the fetal abdominal cavity was filled with distended loops of fetal intestine, the fetal stomach was of normal size and polyhydramnios was present. The prenatal ultrasonic findings in this metabo...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970040611
更新日期:1984-11-01 00:00:00
abstract::Authors of policy statements from the American College of Obstetricians and Gynecologists and from the Society for Maternal-Fetal Medicine do not acknowledge the potential for their clinical income to influence their opinions, or the positions of the societies they represent. These policy statements were published in ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5209
更新日期:2018-02-01 00:00:00
abstract::Comparative genomic hybridization (CGH) is a FISH-related technique used to assess global chromosomal aberrations in a variety of human tumours. Recently CGH has been applied to cytogenetic analysis of fresh frozen fetoplacental tissues. Here we report the application of CGH to paraffin-embedded placental samples. Ten...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVES:Use high-resolution genome analysis to clarify the genomic integrity in a fetus with a cytogenetically balanced translocation t(2;9)(q11.2;q34.3). METHODS:High resolution molecular cytogenetic analyses including G-banded chromosome analysis, fluorescence in situ hybridization (FISH), and array-comparative g...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1841
更新日期:2007-12-01 00:00:00
abstract::FISH analysis of uncultured interphase amniotic fluid cells from a male fetus revealed two signals using an alpha-satellite X-chromosome DNA probe. One of the signals was much smaller than the other. It was subsequently shown that the normal sized signal was located on the X chromosome and the smaller signal was locat...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(199909)19:9<832::aid-pd653
更新日期:1999-09-01 00:00:00
abstract::Sex chromosome aneuploidy (SCA), when detected in amniocentesis, is usually an unexpected result of a test carried out for another purpose. For most SCAs, the prognosis is milder and less predictable than trisomy 21, and therefore parents are faced with a difficult decision regarding the option of pregnancy terminatio...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.78
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVES:To determine the cost effectiveness of a universal prenatal screening program for alpha- and beta-thalassaemia. METHODS:We retrospectively reviewed our program from 1998 to 2002, and calculated the direct and indirect costs of various components. RESULTS:18,936 women were screened at our prenatal clinic an...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1035
更新日期:2004-11-01 00:00:00
abstract:OBJECTIVE:To determine the visualization rates of fetal anatomic structures by three-dimensional ultrasound (3DUS) at 12-13 weeks of gestation. STUDY DESIGN:This was a prospective observational study of women presenting for nuchal translucency ultrasound. Five 3D volumes of the fetus were acquired transabdominally. Tw...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2446
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVE:To identify the correlation between the renal vascularization index (VI), the flow index (FI) and the vascularization and flow index (VFI) and placental and fetal hemodynamics in fetuses with growth restriction. METHOD:Bidimensional ultrasound and three-dimensional power Doppler with the VOCAL technique were...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5099
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVES:Hysterotomy scar disruption, ranging from myometrial thinning to complete dehiscence, is a well-established complication of open-hysterotomy fetal myelomeningocele (MMC) repair. This study sought to (a) determine the feasibility of postoperative magnetic resonance imaging (MRI) in detecting signs of hysterot...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5565
更新日期:2020-01-01 00:00:00
abstract::Few reports concerning intrauterine shunting are available. We investigated the impact of this method. In order to evaluate intrauterine shunting and the complication rate for different indications, we sent a questionnaire to all German-speaking level 3 centres. In four level 3 centres, 52 intrauterine catheters were ...
journal_title:Prenatal diagnosis
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1002/pd.1970140910
更新日期:1994-09-01 00:00:00
abstract::Fetal cardiac intervention was first proposed in the early 1990s to impact cardiac development and survival of fetuses with fetal aortic stenosis and evolving hypoplastic left heart syndrome (HLHS). Although initial attempts of fetal aortic valvuloplasty were unsuccessful and carried a high rate of morbidity and morta...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.5631
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVE:To explore the genetic aetiology of fetal posterior fossa abnormalities (PFAs). METHODS:This study involved cases of PFAs that were identified by prenatal ultrasonographic screening and confirmed postnatally between January 2012 and January 2016. Conventional cytogenetic analyses and chromosomal microarray a...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5159
更新日期:2017-11-01 00:00:00
abstract::There are now several DNA probes which localize the cystic fibrosis mutation (CF) to chromosome 7q2.2-q3.1. The most tightly linked probes, pJ3.11 and met, are useful for first trimester prenatal diagnosis for many families provided that there is at least one living child affected by CF (Farrall et al., 1986). We desc...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970070309
更新日期:1987-03-01 00:00:00
abstract:OBJECTIVES:A QF-PCR test has been developed to diagnose sex chromosome imbalances in prenatal samples and has been applied to a diagnostic service. METHODS:The test uses a PCR multiplex with eight primer pairs: six X-chromosome polymorphic markers, including two markers from Xp (a region not included in previously pub...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.569
更新日期:2003-03-01 00:00:00
abstract::To evaluate the potential utility of free beta (hCG) and beta-core (hCG) in a prenatal screening protocol for Down syndrome we analysed these markers in dried maternal urine specimens from 163 control, 13 Down syndrome and 5 trisomy 18 pregnancies from 8 to 25 weeks' gestation. All results are reported after normaliza...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(199809)18:9<893::aid-pd362
更新日期:1998-09-01 00:00:00
abstract::We report one case of de novo complex chromosomal rearrangement (CCR) t(2q;3p;4q;13q) with at least five chromosomal breakpoints. This CCR was detected prenatally at 22 weeks of gestation, when mild echographic indications were disclosed during a routine examination in a female with no family history of congenital abn...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0223(199611)16:11<1046::AID-PD9
更新日期:1996-11-01 00:00:00
abstract:OBJECTIVE:Discussion of isolated ultrasound (US) markers for fetal aneuploidy can provoke significant patient anxiety. The objective of this study is to quantify maternal anxiety associated with the detection of these markers. METHODS:All patients undergoing routine second-trimester US examination for fetal anatomical...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1618
更新日期:2007-01-01 00:00:00
abstract::A case of early diagnosis at 13 weeks' gestational age of Meckel-Gruber syndrome by ultrasound is reported in a patient with a 25 per cent recurrence risk. The usefulness of genetic counselling and aimed echographic examination is discussed. ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970090307
更新日期:1989-03-01 00:00:00
abstract::Cytogenetic microarray analysis (CMA) in prenatal testing detects chromosome abnormalities and new genetic syndromes that would be missed by conventional cytogenetics and has the potential to significantly enhance prenatal genetic evaluation. A large Eunice Kennedy Shriver National Institute Of Child Health and Human ...
journal_title:Prenatal diagnosis
pub_type: 临床试验,杂志文章
doi:10.1002/pd.3863
更新日期:2012-04-01 00:00:00
abstract:OBJECTIVE:Fetal myelomeningocele (fMMC) surgery improves infant outcomes when compared with postnatal surgery. Surgical selection criteria and the option of pregnancy termination, however, limit the number of cases that are eligible for prenatal surgery. We aimed to quantify what proportion of cases could ultimately be...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5390
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVE:To report the outcome of transient abnormal cardiac flow patterns (ABCFP) at 13 to 17 weeks' gestation. METHODS AND RESULTS:Observational single operator study of transvaginal sonography scans of 13,183 fetuses. Of the 22 fetuses with ABCFP (1:600) high pulmonary valvular velocity was detected in 11 (8 of th...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.3836
更新日期:2012-05-01 00:00:00
abstract:OBJECTIVE:The objective of this article is to estimate whether the maternal serum levels of A disintegrin and metalloprotease domain 12 (ADAM12-s), pregnancy-associated plasma protein-A (PAPP-A), and free beta human chorionic gonadotrophin (fβ-hCG) are altered in assisted reproduction techniques (ART) pregnancies. MET...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4764
更新日期:2016-02-01 00:00:00
abstract::Non-mosaic trisomy 9 was found in a chorionic villus (CV) sample taken from a 43-year-old woman referred for prenatal chromosome analysis due to advanced maternal age. Follow-up amniocentesis revealed level 2 mosaicism for trisomy 9. Trisomy 9 was not detected at fetal blood sampling. Molecular analysis of fetal (amni...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/1097-0223(200011)20:11<930::aid-pd955>3.0.
更新日期:2000-11-01 00:00:00
abstract::Quantitative fluorescent polymerase chain reaction has been in diagnostic use in the UK for over 10 years and has proved to be a cost-effective, robust and accurate rapid prenatal test for common aneuploidies. Specific advantages include detection of triploidy, mosaicism and maternal cell contamination. Its applicatio...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.2945
更新日期:2012-04-01 00:00:00