Abstract:
OBJECTIVE:Maternal serum pregnancy-associated plasma protein-A (PAPP-A) and free beta-human chorionic gonadotrophin (beta-hCG) are useful markers in the screening of Down syndrome in the first trimester. We investigated the effect of intracytoplasmic sperm injection (ICSI), freezing and thawing of embryos on the levels of these two analytes in assisted reproduction pregnancies. METHODS:We recruited 149 women who conceived after assisted reproduction with fresh embryos (92 from conventional IVF and 57 from ICSI), 85 women who conceived with frozen-thawed embryos (54 from conventional IVF and 31 from ICSI) and 401 women with spontaneous conceptions as controls. The concentrations of PAPP-A and free beta-hCG were measured between 10 and 14 weeks and were converted to multiples of medians (MoM) for comparisons. RESULTS:Median PAPP-A MoMs were significantly reduced in ICSI pregnancies in the fresh and frozen-thawed embryo subgroups (0.70 and 0.66 MoM respectively) and in the IVF fresh embryo subgroups (0.83 MoM), as compared to controls (1.00 MoM). Free beta-hCG MoM was significantly reduced in the IVF fresh embryos subgroup (0.87 MoM), but not in the other three subgroups. CONCLUSION:Further studies for exploring the underlying pathophysiology and adjustment in the marker levels for screening of Down syndrome are warranted in pregnancies conceived after assisted reproduction.
journal_name
Prenat Diagnjournal_title
Prenatal diagnosisauthors
Hui PW,Lam YH,Tang MH,NG EH,Yeung WS,Ho PCdoi
10.1002/pd.1169subject
Has Abstractpub_date
2005-05-01 00:00:00pages
390-3issue
5eissn
0197-3851issn
1097-0223journal_volume
25pub_type
杂志文章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:OBJECTIVE:To investigate perinatal outcomes of fetal echogenic bowel (FEB). METHOD:This is a retrospective observational study of FEB cases from Jan 2005-Dec 2010. Data from ultrasound and fetal medicine investigations, uterine artery Doppler (UAD), intra-partum care and neonatal outcome were obtained from Fetal Medic...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.3898
更新日期:2012-08-01 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:This study aims to evaluate the prevalence of congenital heart disease (CHD) in monochorionic (MC) twin pregnancies with and without twin-to-twin transfusion syndrome (TTTS) in an unselected cohort, which underwent prenatal and postnatal echocardiography. METHOD:This was a retrospective cohort study includin...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4411
更新日期:2014-10-01 00:00:00
abstract::Study of different tissues of an aborted female fetus showed similar levels of fragile-X expression (6.3-9.2 per cent) and of early replication of the FRAXA-positive cells (50-66 per cent) in fetal tissues. Different culture media did not significantly affect either investigation. It is suggested that the distribution...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970110510
更新日期:1991-05-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to investigate the clinical value of velocity vector imaging (VVI) in the assessment of normal fetal regional myocardial performance and to establish a normative data set for normal Chinese fetuses. METHODS:One hundred and fifty-one healthy Chinese fetuses were divided into five...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2386
更新日期:2009-12-01 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:OBJECTIVES:To present the prenatal diagnosis of a de novo terminal inversion duplication of the short arm of chromosome 4 and a review of the literature. CASE:An amniocentesis for chromosome analysis was performed at 33 weeks' gestation because ultrasound examination showed a female fetus with multiple abnormalities c...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1154
更新日期:2005-06-01 00:00:00
abstract::Twin-twin transfusion syndrome (TTTS) represents a pregnancy complication with a high risk for perinatal mortality and postnatal morbidity. Mathematical models have been utilized to examine the mechanisms of disease and potential treatment modalities. We developed four consecutive models based on pathophysiology mecha...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.1944
更新日期:2008-04-01 00:00:00
abstract::Although congenital mesoblastic nephroma (CMN) is a rare benign congenital renal tumor, it is the most common solid renal tumor in the newborn period. The most common presentation of congenital mesoblastic nephroma is polyhydramnios, and only one case with prenatal fetal hydrops has been previously reported. Prenatal ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.727
更新日期:2003-11-01 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:OBJECTIVES:To explore the efficacy of contingent triple-screening for Down syndrome (DS), that is, performing triple-screening in pregnant women with DS risks between 1/270 and 1/1000 at routine double-screening, in a Mainland Chinese population. METHODS:Maternal serum concentrations of alpha fetoprotein (AFP), free-b...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2412
更新日期:2010-01-01 00:00:00
abstract:OBJECTIVES:To investigate if systemic hypertension occurs in fetuses with twin-to-twin transfusion syndrome (TTTS). METHODS:We conducted an observational cohort study in a tertiary care centre in 23 pregnant women with TTTS. Polyhydramnios stuck twin sequence occurred at a median gestational age of 22 weeks (range 15-...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.652
更新日期:2003-08-01 00:00:00
abstract::Four fetuses with a femur measuring greater than two standard deviations below the mean compared with the biparietal diameter are presented. These four fetuses were subsequently determined to have severe intrauterine growth retardation and no evidence of skeletal dysplasias. ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970130605
更新日期:1993-06-01 00:00:00
abstract:OBJECTIVES:To evaluate whether cell-free fetal (cff) DNA in maternal plasma during the second trimester is a marker for developing pregnancy-associated complications. Two PCR techniques for the detection and quantitation of fetal DNA were compared. METHODS:Plasma samples were prospectively collected from 84 pregnant w...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1513
更新日期:2006-09-01 00:00:00
abstract::Maternal uniparental disomy (UPD) 20 was found in a 35-month-old girl, the product of a pregnancy complicated by a prenatal diagnosis of mosaic trisomy 20. Phenotypic abnormalities included pre- and postnatal growth failure, microcephaly, minor dysmorphic features and psychomotor developmental delay. Chromosomal analy...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.158
更新日期:2001-10-01 00:00:00
abstract::A 40-year-old woman underwent amniocentesis at 15.3 weeks of gestation. Chromosome analysis performed using QFQ, DA-DAPI and CBG banding revealed two de novo extra-chromosomal markers (ESACs) in 11 of the 16 colonies analysed. Fluorescence in situ hybridization (FISH) showed that both chromosomes came from the Yq11.22...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.734
更新日期:2003-12-15 00:00:00
abstract::Deficiency of amylo-1,6-glucosidase activity was expressed in parallel in liver and skin fibroblasts from a patient with type III glycogenosis. In crude extracts of control liver and muscle, amylo-1,6-glucosidase (M.W. 164000) was identified by immunoprecipitation; no cross-reacting material was found in the patient's...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970030104
更新日期:1983-01-01 00:00:00
abstract:OBJECTIVES:To determine if the ultrasound marker Nuchal Index (NIx) is gestational age independent, and to determine its specificity and sensitivity for Down syndrome (DS) identification. METHODS:Prospective cohort. A prospective database of fetal biometry and soft markers of aneuploidy was searched for fetuses with t...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.497
更新日期:2002-12-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to assess the performance of cardio-biparietal ratio measured by real-time two-dimensional ultrasound in predicting hemoglobin (Hb) Bart disease among fetuses at risk. METHOD:This prospective diagnostic study recruited pregnancies at risk for Hb Bart disease at 17 to 22 weeks' gesta...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5478
更新日期:2019-07-01 00:00:00
abstract::We report a fetus with spinal muscular atrophy type I, who presented with an increased nuchal translucency at 13 weeks' gestation. A review of the literature reveals additional cases of spinal muscular atrophy type I associated with increased nuchal translucency and suggests increased nuchal translucency may be an ear...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:
更新日期:1999-06-01 00:00:00
abstract:BACKGROUND:The azoospermic factor (AZF) region is critical for normal spermatogenesis since microdeletions and partial deletions have been associated with infertility. We investigate the diagnostic ability of karyotyping in detecting clinically relevant Y chromosome deletions. The clinical significance of heterochromat...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1772
更新日期:2007-08-01 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::We present a prenatal case with a 45,X,dic(Y;15) (q11.23;p11.1) karyotype and describe the inheritance pattern of the chromosome 15s. Chromosome 15 has an imprinted region and inheritance of both chromosome 15 from one parent results in either Angelman syndrome (AS) (paternal inheritance) or Prader Willi syndrome (PWS...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:1998-02-01 00:00:00
abstract:OBJECTIVES:Polyhydramnios is suggested to be associated with oral clefts (OCs) due to swallowing problems. This study assessed incidence and outcome of idiopathic polyhydramnios in isolated OC pregnancies. METHODS:This was a retrospective cohort study of prenatally diagnosed OC. The incidence of idiopathic polyhydramn...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4983
更新日期:2017-02-01 00:00:00
abstract:OBJECTIVE:To present a report on prenatal diagnosis using direct SPG4 gene analysis in a family with autosomal dominant hereditary spastic paraplegia (AD-HSP). METHODS:Genetic linkage and haplotype analysis were previously carried out with chromosome 2p markers. DNA was obtained from affected individuals, the affected...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.875
更新日期:2004-05-01 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:INTRODUCTION:Limited data exist on the outcome of Dandy-Walker malformation (DWM), Dandy-Walker variant (DWV) and mega-cisterna magna (MCM). We report the first population-based study of posterior fossa anomalies from the northern region of England. METHODS:Cases were identified from the Northern Congenital Abnormalit...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1485
更新日期:2006-08-01 00:00:00
abstract::Trisomy 12 observed in chorionic villus sampling (CVS) may reflect generalized mosaicism or indicate mosaicism confined to only the placenta. In this report, four cases of trisomy 12 observed in CVS or cultured placental biopsies with varying outcomes are presented. Seven dinucleotide repeat polymorphisms for chromoso...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970151106
更新日期:1995-11-01 00:00:00
abstract::Prenatal diagnosis of Duchenne and Becker muscular dystrophy is performed as a routine procedure in many laboratories around the world, using numerous molecular genetic techniques. Rather than discussing methods that are commonly in use, this review concentrates on some of the methods that are less widely available. T...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/(SICI)1097-0223(199612)16:13<1187::AID-PD9
更新日期:1996-12-01 00:00:00