Abstract:
OBJECTIVES:To develop a reliable and specific technique for rapid prenatal diagnosis of Down syndrome. METHODS:High throughput real-time PCR technique was used to measure the DSCR3 gene dosage of genomic DNAs from uncultured amniocytes of fetuses, lymphocytes of trisomy 21 syndrome patients, and normal people, compared to conventional cytogenetic karyotype analysis. RESULTS:The DSCR3/GAPDH ratio of uncultured amniocytes in trisomy 21 syndrome fetuses to normal fetuses was 1.69 +/- 0.17 to 1.06 +/- 0.14, respectively (p < 0.001); and the DSCR3/GAPDH ratio of lymphocytes in trisomy 21 syndrome children to normal people was 1.67 +/- 0.13 to 0.99 +/- 0.10, respectively (p < 0.001). Real-time PCR technique effectively differentiates the normal fetuses from the trisomy 21 syndrome fetuses; therefore, compared to the results of the conventional cytogenetic karyotype analysis, the DSCR3/GAPDH ratios of trisomy 21 syndrome fetuses are significantly higher than those of normal fetuses. CONCLUSION:Because the DSCR3/GAPDH ratio of trisomy 21 syndrome fetuses is significantly higher than that of normal fetuses, the genomic DNA real-time PCR technique may be a reliable and specific method for the rapid prenatal diagnosis of Down syndrome.
journal_name
Prenat Diagnjournal_title
Prenatal diagnosisauthors
Hu Y,Zheng M,Xu Z,Wang X,Cui Hdoi
10.1002/pd.968subject
Has Abstractpub_date
2004-09-01 00:00:00pages
704-7issue
9eissn
0197-3851issn
1097-0223journal_volume
24pub_type
杂志文章abstract:OBJECTIVES:To develop a simulation model and assess the learning curve of fetal shunting. METHODS:Three staff and three trainees performed fetal shunting on a model using the fetal bladder stent. The model was evaluated according to various sources of validity evidence. The number of procedures to reach competency was...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5599
更新日期:2019-12-01 00:00:00
abstract::Two severely growth-retarded fetuses found to have maternal uniparental disomy (UPD) for chromosome 16 and trisomy 16 placental mosaicism both had an unfavourable outcome. Antenatally, the first case was complicated by an unexplained raised maternal serum alpha-fetoprotein concentration, preterm premature rupture of t...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970140817
更新日期:1994-08-01 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::Cytomegalovirus (CMV) is the most common cause of congenital infection with approximately 0.5% of pregnant women in developed countries seroconverting during pregnancy. In utero transmission occurs in about one third of women who develop primary infection in the first trimester, and these fetuses are at risk for adver...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.4497
更新日期:2015-01-01 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:OBJECTIVES:Cell-free DNA (cfDNA) screening can provide false positive/negative results because the fetal fraction originates primarily from trophoblast. Consequently, invasive diagnostic testing is recommended to confirm a high-risk result. Currently, there is debate about the most appropriate invasive method. We sough...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4659
更新日期:2015-10-01 00:00:00
abstract:INTRODUCTION:Pure duplication of chromosome 18p is rare, with clinical phenotypes ranging from normal or slight abnormalities to various degrees of mental retardation. It remains difficult to establish a clear genotype-phenotype correlation. METHODS:Chromosomal karyotyping analysis was performed on cultured amniotic f...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.5553
更新日期:2019-11-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to evaluate outcomes for neonates with critical congenital heart disease (CHD) requiring emergent neonatal cardiac intervention (ENCI). METHODS:Neonates < 30 days of age that underwent ENCI at <48 h of age were retrospectively enrolled over a 2-year period. RESULTS:Forty-seven neon...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4438
更新日期:2014-12-01 00:00:00
abstract::In a study of 70 cases of trisomy 18 and 450 matched controls in the second trimester we have measured the maternal serum levels of the analytes alpha feto protein (AFP), free beta-human chorionic gonadotrophin (hCG) and pregnancy associated plasma protein-A (PAPP-A). We have found the median multiple of the median (M...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,多中心研究
doi:
更新日期:1999-12-01 00:00:00
abstract::A number of different models of CF carrier screening have now been tested in pilot trials. Apart from opportunistic and cascade testing (which are strictly speaking not true forms of screening), the major programmes have been directed either to young adults in primary care or to pregnant women in antenatal clinics. On...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.1970141309
更新日期:1994-12-01 00:00:00
abstract:OBJECTIVE:To compare the prognostic value of fetal serum α1-microglobulin with that of β2-microglobulin and cystatin C for postnatal renal function. METHOD:Retrospective study of α1-microglobulin, β2-microglobulin, and cystatin C in fetal serum from 126 fetuses with congenital abnormalities of the kidney and urinary t...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4128
更新日期:2013-08-01 00:00:00
abstract:OBJECTIVE:To determine the value of a first trimester fetal ultrasound examination in cases of an increased nuchal translucency (NT). METHOD:A detailed fetal ultrasound examination was performed within 4 days of a detection of a first trimester increased NT. RESULTS:As many as 23 fetuses were evaluated. Severe anomal...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2119
更新日期:2008-11-01 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 Books, R...
journal_title:Prenatal diagnosis
pub_type:
doi:
更新日期:2001-01-01 00:00:00
abstract::We present the prenatal ultrasound findings in a case of hydrolethalus. This case illustrates ongoing problems in differentiating hydrolethalus, both pre- and postnatally, from other midline malformation syndromes including Pallister-Hall, Smith-Lemli-Opitz, pseudo-trisomy 13, oral facial-digital syndrome, and Meckel ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0223(199602)16:2<173::AID-PD821
更新日期:1996-02-01 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::Variable results have been reported using urine beta-core fragment as a marker for fetal Down syndrome. Initial studies by Cuckle et al. (1994) and Canick et al. (1995) indicated that beta-core fragment was an outstanding marker, detecting >80 per cent of Down syndrome cases. Since these reports, widely varying result...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(199904)19:4<340::aid-pd543
更新日期:1999-04-01 00:00:00
abstract::Prenatal diagnosis of cord defects by means of ultrasound examination is possible and highly accurate. Although this is a rare pathological finding, we report two cases in which umbilical cord pseudocysts were associated with trisomy 18. These observations underscore the need of umbilical blood sampling for establishi...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970080802
更新日期:1988-10-01 00:00:00
abstract::We have developed a two-colour immunocytochemical staining method for the detection of fetal and embryonic haemoglobin in erythroid cells. The method was applied to study these haemoglobin types in fetal red cells. Specimens from fetal blood (10 weeks), cord blood and fetal liver (14 weeks) as well as chorionic villus...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(199811)18:11<1131::aid-pd4
更新日期:1998-11-01 00:00:00
abstract:OBJECTIVES:To assess the factors associated with utilization of genetic counseling services among pregnant Israeli Arab women. METHODS:A case-control study was conducted among 414 pregnant Arab women who were referred by a family physician or a perinatologist to genetic counseling services between 2008 and 2011. Data ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4550
更新日期:2015-04-01 00:00:00
abstract:OBJECTIVES:(1) Assess sensitivity of the measurement of nuchal translucency (NT), for the prenatal screening of congenital heart defect (CHD) on population-based data; (2) examine whether the sensitivity of NT varies for specific types of cardiac defects. METHODS:Using population-based data of the Paris Registry of Co...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2883
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Despite the large impact of ultrasonographic and biochemical markers on prenatal screening, the ability to accurately diagnose Down syndrome (DS) is still limited and better diagnostic testing is needed. METHODS:Plasma from 8 women carrying a DS foetus and 12 with non-DS foetuses matched for gestational age...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2040
更新日期:2008-08-01 00:00:00
abstract::Right pulmonary agenesis is a rare congenital malformation which results in secondary dextrocardia in situs solitus. Ipsilateral microtia in this context composes a laterality syndrome. The prenatal sonographic findings of this abnormality have not been previously reported. We describe the association of dextrocardia ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/1097-0223(200102)21:2<125::aid-pd999>3.0.c
更新日期:2001-02-01 00:00:00
abstract::Calcification of the heart and vessels in fetuses is a rare condition. It may be dystrophic or metastatic. An extremely rare form of vascular calcification has been termed 'idiopathic arterial calcification of infancy', which is inherited in an autosomal recessive pattern. We report four cases of myocardial calcificat...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/(sici)1097-0223(199811)18:11<1186::aid-pd4
更新日期:1998-11-01 00:00:00
abstract::Ataxia telangiectasia (AT) is a severe autosomal recessive disease, rare but not infrequent in Italy. Owing to the seriousness of the disease, prenatal diagnosis has been attempted in the past by means of cytogenetic, biochemical, radio-biological and indirect molecular analyses. We performed the first direct molecula...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(199906)19:6<542::aid-pd586
更新日期:1999-06-01 00:00:00
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journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4605
更新日期:2015-08-01 00:00:00
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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::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::Trisomy 12 mosaicism was found in about 15 per cent of cultured amniocytes obtained from a 32-year-old white female at 17.6 weeks of gestation. Termination of pregnancy was elected and multiple tissues were obtained for chromosome analysis. Of 158 cells examined, only 1 cell in placenta was found with an extra number ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.1970101204
更新日期:1990-12-01 00:00:00
abstract::Data from 3611 consecutive CVS (TC, N = 1780; TA, N = 1831) were analysed with emphasis put on influence of maternal and gestational age at CVS on the fetal loss rate less than 28 weeks. For TC-CVS the gestational age varied from 9.3-11.6 weeks, for TA-CVS from 9.3-20 weeks. Sampling efficacy at first attempt was 86.5...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970110811
更新日期:1991-08-01 00:00:00
abstract::Fetal pleural effusion, a nonspecific accumulation of fluid in the pleural space, is an uncommon anomaly which can be associated with aneuploidy and a range of other structural malformations or genetic syndromes. Spontaneous resolution is not rare and confers a good prognosis. Perinatal outcome is better for those fet...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.1768
更新日期:2007-09-01 00:00:00