Abstract:
:In 100 children with Down syndrome (DS), the parental origin of the supernumery chromosome 21 was investigated. In 76 out of the 100 cases the polymorphic regions were informative, i.e. the nondisjunction could be traced. Assessment of the alpha 1-antitrypsin/alpha 1-protease inhibitor (PI) types in these DS children revealed a significantly higher value of non-M PI variants (P less than 0.05). In their fathers the non-M PI variants were not increased, not even in those in whom nondisjunction had taken place. A clearly significantly higher value (P less than 0.001) of non-M PI variants was found in their mothers, particularly when only the MS and MZ types which are recognised as deficiency variants were considered. Most striking, however, is the almost 5-fold increased frequency of MS and MZ types found in mothers where the nondisjunction had occurred during the first meiotic division. This would suggest that PI deficiency interferes with some process leading to non-disjunction. If these findings are confirmed, application of Bayes' theorem enables us to estimate the risk for MZ and MS heterozygous women to have a DS child: this would be 3- to 4- fold higher than for MM homozygous women. This would be of interest for genetic counselling and enhance the benefits of prenatal diagnosis programmes.
journal_name
Clin Genetjournal_title
Clinical geneticsauthors
Jongbloet PH,Frants RR,Hamers AJdoi
10.1111/j.1399-0004.1981.tb01037.xsubject
Has Abstractpub_date
1981-10-01 00:00:00pages
304-9issue
4eissn
0009-9163issn
1399-0004journal_volume
20pub_type
杂志文章abstract::Specific mitochondrial enzymatic deficiencies in the catabolism of branched-chain amino acids cause methylmalonic aciduria (MMA), propionic acidemia (PA) and maple syrup urine disease (MSUD). Disease-causing mutations were identified in nine unrelated branched-chain organic acidurias (BCOA) patients. We detected eight...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.12751
更新日期:2016-09-01 00:00:00
abstract::The incidence of pancreatic ductal adenocarcinoma (PDAC) is steadily increasing and the annual death-to-incidence ratio approaches one. This is a figure that has not changed for several decades. Surgery remains the only chance of cure; however, only less than 20% of patients are amenable to operative resection. Despit...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/cge.12536
更新日期:2015-09-01 00:00:00
abstract::The syndrome of peroneal muscular atrophy, or Charcot-Marie-Tooth (CMT), disease represents the most common inherited peripheral neuropathy, with a prevalence of about 1 per 2500. The disease is usually transmitted in an autosomal dominant fashion, although it can display all the mendelian patterns of inheritance. The...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1995.tb03917.x
更新日期:1995-01-01 00:00:00
abstract::In situ hybridization was used to characterize an undetected chromosome translocation in a child whose metaphase chromosome analysis in peripheral blood and in skin culture revealed apparent monosomy 21. The cytogenetic study revealed 45 chromosomes, and no other structural anomalies were detected with G banding. In s...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1993.tb04457.x
更新日期:1993-02-01 00:00:00
abstract::Low density lipoprotein (LDL) receptor activity, measured as 125I-LDL association and degradation at 37 degrees C, was determined in cultured fibroblasts from involved as well as uninvolved skin obtained from 20 psoriasis patients. The same analyses were conducted in fibroblasts from two reference groups consisting of...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1984.tb01983.x
更新日期:1984-03-01 00:00:00
abstract::The ability of statins to strongly reduce low-density lipoprotein cholesterol (LDL-C) varies interindividually and is partially influenced by genetic variants. Based on a comprehensive analysis of 23 single nucleotide polymorphisms (SNPs) known to be associated with pharmacokinetics and dynamics of statins, we develop...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.12890
更新日期:2017-03-01 00:00:00
abstract::Neurodevelopmental and psychological aspects in a child with 49XYYYY karotype are described. The developmental examination revealed mild mental retardation (I.Q.=50), disturbances in gross and fine motor development and speech disorders. The child was treated by developmental therapy which improved his abilities for a...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1986.tb01913.x
更新日期:1986-12-01 00:00:00
abstract::A case of Fanconi anemia with terminal acute leukemia is reported. Clones with chromosome abnormalities were observed in bone marrow cells. The patterns of marker chromosome distribution in these clones suggests the occurrence of a somatic segregation mechanism. ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1977.tb01336.x
更新日期:1977-06-01 00:00:00
abstract::It is well known that founder mutations associated with cancer risk have useful implications for molecular diagnostics. We report the presence of a founder mutation in EPCAM involved in the etiology of Lynch syndrome (LS). The mutation extends nearly 8.7 kb (c.858 + 2478_*4507del) and is shared by 8 Polish families. F...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.13026
更新日期:2017-12-01 00:00:00
abstract::In this report, a case with corpus callosum dysgenesis, infantile spasm, microcephaly, psychomotor retardation, exophthalmos, cleft lip-palate and abnormal EEG findings is presented. His parents are first-degree relatives. We could not fully match the findings of our patient with the criteria of any syndrome published...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1996.tb03291.x
更新日期:1996-04-01 00:00:00
abstract::The Ehlers-Danlos syndromes (EDS) and associated hypermobility spectrum disorders (HSD) are a heterogenous group of connective tissue disorders associated with significant morbidity. The urogenital aspects of these disorders are understudied and there is little guidance on the prevalence, types, or outcomes of urogeni...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/cge.13624
更新日期:2020-01-01 00:00:00
abstract::Mutations in the RMRP gene that codes for an RNA subunit of the MRP RNAse complex are the cause of cartilage-hair hypoplasia (CHH; MIM 250250). We tested the hypothesis that recessive metaphyseal dysplasia without hypotrichosis (M1M 250460), a disorder presenting with short stature and metaphyseal dysplasia similar to...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.2002.610210.x
更新日期:2002-02-01 00:00:00
abstract::A sibship consisting of three siblings, one male and two females with unrelated parents, showed a clinical syndrome including: infantile spasms with hypsarrhythmia, microcephaly, severe mental retardation and spastic quadriplegia. The pneumoencephalogram performed in two sibs showed agenesis of the corpus callosum and...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1977.tb00943.x
更新日期:1977-11-01 00:00:00
abstract::XLαs, the extra-large isoform of alpha-subunit of the stimulatory guanine nucleotide-binding protein (Gsα), is paternally expressed. The significance of XLαs in humans remains largely unknown. Here, we report a patient who presented with increased bone mass, hypophosphatemia, and elevated parathyroid hormone (PTH) lev...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.13734
更新日期:2020-05-01 00:00:00
abstract::A cytogenetic survey of an unselected group of mentally retarded persons in a geographically limited area was made in order to establish the frequency of chromosome abnormalities within this group. In the area there were 2,157 patients, both institutionalized and living at home. A chromosome analysis was performed in ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1982.tb01441.x
更新日期:1982-11-01 00:00:00
abstract::While there are many reports in the literature of mutation testing of BRCA1 and BRCA2 in breast/ovarian cancer families, the question of which type of ovarian cancers are relevant still pertains. We have undertaken whole gene screening including multiple ligation-dependent probe amplification in an affected individual...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.2008.00974.x
更新日期:2008-04-01 00:00:00
abstract::We report on a consanguineous family with 6 children (out of 7) affected by a spondylo-ocular syndrome. Clinical features include cataract, loss of vision due to retinal detachment, facial dysmorphism, facial hypotonia, normal height with disproportional short trunk, immobile spine with thorakal kyphosis and reduced l...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.2001.590206.x
更新日期:2001-02-01 00:00:00
abstract:BACKGROUND:Array-comparative genomic hybridization (array-CGH) is a widely used technique to detect copy number variants (CNVs) associated with developmental delay/intellectual disability (DD/ID). AIMS:Identification of genomic disorders in DD/ID. MATERIALS AND METHODS:We performed a comprehensive array-CGH investiga...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.13009
更新日期:2017-10-01 00:00:00
abstract::The associations between characteristics of family relationships and family trends in cancer worry and the psychological adjustment of recipients of genetic testing for cancer susceptibility were investigated. Data provided by 178 individuals from 24 families with Lynch syndrome who participated in a cohort study inve...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.2008.01104.x
更新日期:2009-01-01 00:00:00
abstract::Single cells were sorted from cultured fibroblasts of five carriers of Fabry's disease using a cell sorter (FACS II). The alpha-galactosidase A activity in the single fibroblasts was assayed in nanoliter droplets with the help of quantitative microfluorimetric techniques. Two populations of fibroblasts were present in...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1983.tb01874.x
更新日期:1983-04-01 00:00:00
abstract::Neurofibromatosis 2 (NF2) is caused by mutations in the NF2 gene predisposing carriers to develop nervous system tumours. Different NF2 mutations result in either loss/reduced protein function or gain of protein function (abnormally behaving mutant allele i.e. truncated protein potentially causing dominant negative ef...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.2009.01315.x
更新日期:2010-02-01 00:00:00
abstract::Fabry disease (FD) is an X-linked lysosomal storage disorder (LSD) caused by the deficiency of the enzyme α-galactosidase. It exhibits a wide clinical spectrum that may lead to a delayed or even missed diagnosis and the real incidence can be underestimated. We report the cases of two unrelated Italian families in whom...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.12071
更新日期:2013-09-01 00:00:00
abstract::Among a series of 98 triploid abortions, there were four specimens with two cells lines. The detection of two clones was by Q-banding of chromosomes. Two of these four specimens were dizygotic twins, the third was either a mosaic or monozygotic twins with loss of a sex chromosome from one twin and the fourth was best ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1985.tb00415.x
更新日期:1985-12-01 00:00:00
abstract::The atrioventricular canal defect (AVCD) is a congenital heart defect (CHD) frequently associated with extracardiac anomalies (75%). Previous observations from a personal series of patients with AVCD and "polydactyly syndromes" showed that the distinct morphology and combination of AVCD features in some of these syndr...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/cge.13375
更新日期:2019-02-01 00:00:00
abstract::Endothelin is a peptide reported to be one of the most potent vasoconstrictors known. Presumably, endothelin could play a role in the physiological regulation of blood pressure in healthy or hypertensive people. We have studied a normal restriction fragment length polymorphism (RFLP) at the endothelin-I (EDN1) locus d...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1992.tb03640.x
更新日期:1992-02-01 00:00:00
abstract::A study of Huntington's Chorea in South Wales has shown a prevalence of 7.61 per 100,000 in the counties of Gwent and Glamorgan, with a total population of 1.7 million. Heterozygote frequency is close to 1 in 5,000. Total ascertainment within this area has been attempted, and experience since conclusion of the study h...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1981.tb00701.x
更新日期:1981-04-01 00:00:00
abstract::The frequency of rare fragile sites was studied among 240 children in special schools for subnormal intelligence (IQ 52-85). 1/130 boys studied (0.8%) had the fragile site at Xq27.3 while it was not found in any girl (0/110). In two children an autosomal rare fragile site at 2q11.2 (2/240, 0.8%) was seen. In addition ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1986.tb00601.x
更新日期:1986-09-01 00:00:00
abstract::Reciprocal translocations were studied in two groups of balanced carrier couples: 202 had 210 translocation aneuploid between (LB) infants, and 95 couples had repetitive abortions (AB) without liveborn aneuploids. The observed translocation aneuploidies in the LB group were compared to predicted potential aneuploidies...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/j.1399-0004.1985.tb00179.x
更新日期:1985-01-01 00:00:00
abstract::Short stature skeletal dysplasia (SD) patients have orthopedic and neurologic complications causing significant pain and physical disability. We conducted a large cross-sectional online survey in 361 people with short stature SD (>10 years) to describe pain prevalence, characteristics, and the relationship between pai...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.12045
更新日期:2013-09-01 00:00:00
abstract::In order to increase the efficiency of the Magiscan metaphase location and karyotyping system, its software and mode of operation have been changed. In the new multiple-cell karyotyping method, interactions by the operator are only required for relocation and counting of metaphases, but not for karyotyping. Metaphases...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1991.tb03040.x
更新日期:1991-05-01 00:00:00