Abstract:
OBJECTIVES:Smith Lemli Opitz syndrome (SLOS) caused by a deficit of 3beta-hydroxysterol-Delta7 reductase was the first sterol deficit described with multiple malformations. The lack of specificity of many morphological abnormalities detected by ultrasound and their frequency have justified routine screening of amniotic fluid (AF) for sterols by GC-MS. The examination contributes to an improved knowledge of the sterol status in the fluid. METHODS:A series of sterol profiles is collated here. Accumulation of 7- and 8-dehydrocholesterol are diagnostic for SLOS. However, a number of other sterols have also been detected by GC-MS in control AF and their presence may be confusing. RESULTS AND CONCLUSIONS:In addition to cholesterol, the level of which varies as function of the gestational age, lathosterol is present together with trace amounts of 7- and 8-dehydrocholesterol and other precursors such as desmosterol, lanosterol, and dimethylsterol. Phytosterols are also present in 70% of AF samples that have been tested. Besides SLOS, GC-MS examination of amniotic fluid can detect various sterol deficits associated with malformations (lathosterolosis, desmosterolosis, X-linked chondrodysplasia, and particular Antley-Bixler syndrome). Practical conclusions support GC-MS as a routine method to investigate skeletal and central nervous system malformations.
journal_name
Prenat Diagnjournal_title
Prenatal diagnosisauthors
Chevy F,Humbert L,Wolf Cdoi
10.1002/pd.1254subject
Has Abstractpub_date
2005-11-01 00:00:00pages
1000-6issue
11eissn
0197-3851issn
1097-0223journal_volume
25pub_type
杂志文章abstract::Our laboratory has received 1375 early amniotic fluid (EA) specimens during the past 5-year period for cytogenetics analysis. The gestational ages of the EA specimens were less than 14 weeks as estimated by ultrasound. The average volume of specimen received was 16 ml. Specimens were typically received in two collecti...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970130903
更新日期:1993-09-01 00:00:00
abstract:OBJECTIVE:Early elective termination of pregnancy is the most common outcome of a diagnosis of anencephaly in developed countries. Experience and expertise with management of ongoing pregnancies is limited. We aimed to investigate the natural history of these pregnancies from diagnosis to delivery and to determine timi...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2490
更新日期:2010-04-01 00:00:00
abstract::The cloning of the RHD gene has made it possible to determine the RhD status of fetuses at risk for haemolytic disease due to RhD iso-immunization using amniotic fluid or chorionic villi-derived DNA and the polymerase chain reaction. However, some Rh haplotypes are associated with false-positive or negative DNA-based ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(199905)19:5<424::aid-pd562
更新日期:1999-05-01 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::Since 1993, the position of the American College of Medical Genetics (ACMG) has been that prenatal interphase fluorescence in situ hybridization (FISH) is investigational. In 1997, the FDA cleared the AneuVysion assay (Vysis, Inc.) to enumerate chromosomes 13, 18, 21, X and Y for prenatal diagnosis. Data is presented ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,多中心研究,评审
doi:10.1002/pd.57
更新日期:2001-04-01 00:00:00
abstract:OBJECTIVE:We hypothesized that Doppler measurements of the placental and fetal central and peripheral hemodynamics would predict adverse outcomes in prolonged uncomplicated singleton pregnancies. METHOD:A total of 160 participants were recruited to this study. Doppler measurements of placental and fetal hemodynamics a...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4828
更新日期:2016-07-01 00:00:00
abstract::Cervical teratomas are rare tumours which are the result of abnormal prenatal development. They are usually detected at birth, but can occasionally remain silent until adulthood. Obstruction of the airway is the major challenge in the neonatal period. Prenatal diagnosis allows for early consultation with paediatric su...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:Multiplex ligation-dependent probe amplification (MLPA) is a relatively new method for rapid prenatal diagnosis of common aneuploidies, and larger series to evaluate its performance remain to be reported. METHODS:A total of 2400 prenatal chorionic villus samples (CVS) and 1525 prenatal samples of amniotic f...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2137
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVES:To evaluate the diagnostic yield of noninvasive prenatal diagnosis (NIPD) for FGFR3-related skeletal dysplasias and assess the accuracy of referrals based on sonographic findings to inform guidelines for referral. METHODS:We retrospectively reviewed laboratory and referral records from 2012 to 2018 to ascer...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5687
更新日期:2020-06-01 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:OBJECTIVE:To construct new reference charts and equations for fetal biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC) and femur diaphysis length (FDL) from Korean fetuses at 12-40 weeks. METHOD:Prospective cross-sectional data obtained in one center for 5 years from a population of pregn...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1729
更新日期:2007-06-01 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::Stickler syndrome is an autosomal dominant disorder of the connective tissue which includes ocular and systemic manifestations. We report on a large kindred in which we were able to demonstrate very tight linkage between the disease and the type II collagen gene (COL2A1) (LOD score 3.91 at theta = 0). In a family in w...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970140211
更新日期:1994-02-01 00:00:00
abstract:OBJECTIVE:The study aims to describe our two-dimensional (2D) ultrasound approach to visualize the fetal secondary palate and plot its growth curve and to describe and demonstrate its clinical implementation. METHODS:This is a two parts retrospective study. First, we measured the antero-posterior length of the bony se...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5385
更新日期:2018-12-01 00:00:00
abstract::A systematic search was made for uniparental disomy (UPD) in familial or de novo balanced Robertsonian translocations, identified by prenatal cytogenetic investigations. Parent-of-origin studies were performed using molecular markers for both chromosomes involved in the translocation. No UPD cases were identified out ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:2000-06-01 00:00:00
abstract::Distal 10q trisomy is a well-defined but rare syndrome. Most cases are diagnosed in infancy or in childhood and rarely include prenatal findings. We present a case of fetal distal 10q trisomy with abnormal prenatal sonographic findings. A 19-year-old primigravida was referred for genetic counselling at 18 gestational ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(199909)19:9<876::aid-pd651
更新日期:1999-09-01 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
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::An extra small chromosome detected in amniotic fluid was identified as the product of a translocation [46,XX,t(9;15)(p24;q11.2)]. This case is unusual in that individuals with the unbalanced karyotype resulting from a 3:1 disjunction are phenotypically normal. ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970091205
更新日期:1989-12-01 00:00:00
abstract:OBJECTIVES:To assess the attitudes of health professionals in Lebanon towards prenatal diagnosis and termination of pregnancy, for a series of genetic, non-genetic and non-medical conditions. METHODS:A total of 158 questionnaires were sent to geneticists, family doctors, pediatricians and obstetricians/gynecologists, ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.429
更新日期:2002-10-01 00:00:00
abstract::We studied two children born to a myasthenic mother. The first child, a female, had multiple flexion contractures. She died 1 h after birth. In the second pregnancy, 3 years later, ultrasonographic examination at 20 weeks showed decreased fetal movements and multiple flexion contractures. The pregnancy was interrupted...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.1970110104
更新日期:1991-01-01 00:00:00
abstract::Childhood-onset spinal muscular atrophy (SMA) is one of the most common neurodegenerative genetic disorders. SMN1 is the SMA-determining gene deleted or mutated in the majority of SMA cases. There is no effective cure or treatment for this disease yet. Thus, the availability of prenatal testing is important. Here we r...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.384
更新日期:2002-08-01 00:00:00
abstract:OBJECTIVES:To display and compare the different published formulae that specify the association between maternal age and the risk of a Down syndrome live birth. METHODS:Papers published since 1987 on the prevalence of Down syndrome live births in relation to maternal age were located using MEDLINE and the references g...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.568
更新日期:2003-03-01 00:00:00
abstract::We report a case of severe intrauterine growth retardation (IUGR) and hypospadias in association with trisomy 22 diagnosed following chorionic villus sampling (CVS). Subsequent analysis of amniotic fluid cultures showed a normal male karyotype, 46,XY. As a previous case had been reported with similar abnormalities, in...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.260
更新日期:2002-02-01 00:00:00
abstract::Problems can arise in prenatal screening for Down syndrome when tests are performed in the first and second trimester and some women who have a negative first trimester test have a second trimester serum test. The second test result does not usually take account of the previous one being negative. Even if it does, it ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
abstract::Chromosomal mosaicism in amniotic fluid cells poses a serious dilemma in prenatal diagnosis since the observation may represent: (1) pseudomosaicism--an inconsequential tissue culture artefact; or (2) true mosaicism--occurring in approximately 0.20 per cent of amniocenteses with a significant impact on pregnancy outco...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970090803
更新日期:1989-08-01 00:00:00
abstract::Nine hundred and thirty-six prenatal chromosomal analyses were performed by four cytogenetic centres after ultrasound diagnosis of fetal abnormalities, amniotic fluid disorders, fetal growth retardation, and fetal or placental abnormalities. During the same period, 6515 fetal karyotypes were analysed because of matern...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970090405
更新日期:1989-04-01 00:00:00
abstract:OBJECTIVES:To identify expressed sequence tag (EST) clusters preferentially expressed in placentas. METHODS:The National Center for Biotechnology's online UniGene database contains 14 placenta libraries. In silico (computer-based) subtraction compared placenta libraries against the remaining libraries to identify tran...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.608
更新日期:2003-05-01 00:00:00
abstract::The goal of the current paper is to present, on the basis of six investigated fetal hearts, the pathological substrate of prenatally, sonographically diagnosed echogenic intramyocardial foci. The right ventricle, left ventricle, interventricular septum and papillary muscles of both ventricles of six hearts of the fetu...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(200004)20:4<287::aid-pd802
更新日期:2000-04-01 00:00:00
abstract:OBJECTIVE:This study explores the underlying values and beliefs that guide women's reasoning on prenatal genetic test (PGT) uptake, as framed by their own words, during a group discussion, in a Catholic country such as Italy. METHODS:Women's reasoning was explored by means of five focus group consisting of seven pregn...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.3990
更新日期:2012-12-01 00:00:00