Abstract:
:The first appearance of an autosomal dominant disease in a family is often attributed to new mutation, and the parents may be given a very low risk of recurrence for future offspring. This counseling is not appropriate if penetrance of the disease is incomplete and the reproductive fitness of affected individuals is close to normal. The risk of recurrence (PR) for an autosomal dominant disease in the sibling of an affected child, neither of whose parents is affected, may be estimated as: (Formula: see text) where f is fitness of the carrier genotype regardless of phenotype, y is penetrance, and mutation-selection equilibrium is assumed to exist. Recurrence risks have been calculated with this formula for various values of f and y. In cases in which penetrance is moderate and fitness is moderate or high, the risk of recurrence in siblings of the proband is often greater than 10%. When fitness is very high (f greater than 0.9), the risk to siblings may be greater than 25%. These observations have important implications for genetic counseling and may also affect mutation rate calculations, demonstration of paternal age effects, and determination of inheritance patterns in genetically heterogeneous conditions.
journal_name
Clin Genetjournal_title
Clinical geneticsauthors
Friedman JMdoi
10.1111/j.1399-0004.1985.tb00186.xsubject
Has Abstractpub_date
1985-01-01 00:00:00pages
68-71issue
1eissn
0009-9163issn
1399-0004journal_volume
27pub_type
杂志文章abstract::The ability or inability to taste the compound phenylthiocarbamide (PTC) is a classic inherited trait in humans and has been the subject of genetic and anthropological studies for over 70 years. This trait has also been shown to correlate with a number of dietary preferences and thus may have important implications fo...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/j.1399-0004.2004.00361.x
更新日期:2005-04-01 00:00:00
abstract::An isodicentric X-chromosome idic(X) (pter----q26.1::q26.1----pter) was found in lymphocytes and ovarian tissue of a 40-year-old female patient with secondary amenorrhea. No mosaicism was observed. The phenotype-karyotype correlation of our case and of previously described non-mosaic cases of idic(X) (q::q) with diffe...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1987.tb03317.x
更新日期:1987-07-01 00:00:00
abstract::A single mandibular incisor and an unusually narrow mandible and tongue were noted in an 8-year-old moderately retarded boy with 18p- (45, XY, der dic (18) (18qter-p11.2::22p 11.2-qter). While a single maxillary incisor, considered a minor feature of holoprosencephaly, was reported in three cases of 18p-, reduction of...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1994.tb04411.x
更新日期:1994-12-01 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::Reassessment of the cytogenetics of a patient previously karyotyped as del(16)(q22) demonstrates the presence of a balanced translocation, t(4;16)(q35;q22.1). This patient should not be included in any future comparison involving the clinical features of patients with deletions of the long arm of chromosome 16. ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1990.tb03614.x
更新日期:1990-12-01 00:00:00
abstract::A large variety of mutations within the genes encoding hepcidin (HAMP) and hemojuvelin (HJV) have been identified in patients with the severe iron overload disorder juvenile hemochromatosis (JH). The aim of the present study was to evaluate the molecular background of JH in patients from central parts of Europe. Seque...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.2005.00413.x
更新日期:2005-05-01 00:00:00
abstract::In some anencephalic fetuses exposed neural tissue mass of varied size can be demonstrated. This is known as exencephaly. The authors diagnosed by ultrasound 10 typical exencephalic cases prenatally between 14 and 21 weeks of gestation. Nine singular pregnancies were terminated and in the twin pregnancy a selective fe...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1986.tb01904.x
更新日期:1986-11-01 00:00:00
abstract::We have performed cytogenetic and molecular analyses of 45,X mosaics involving structurally abnormal Y chromosomes. Karyotypes were performed by standard cytogenetic methods and, in some cases, by fluorescence in situ hybridization, to distinguish monocentric and dicentric chromosomes. In addition, the deletions of Yq...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.2000.570408.x
更新日期:2000-04-01 00:00:00
abstract::The determination of acetylcholinesterase (AChE) has been shown to be as specific as alphafetoprotein (AFP) for the prenatal detection of open neural tube defects although AFP remains the method of choice. This paper describes a semi-automated technique for the analysis of acetylcholinesterase in amniotic fluid that: ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1986.tb00812.x
更新日期:1986-03-01 00:00:00
abstract::Schematic presentation of NTRK1 protein structure. Variants identified in this study are shown in red and previously reported variants associated with CIPA are shown in black (LRM, leucine rich motif; Ig, immunoglobulin-like domain; TM, transmembrane domain; TK, tyrosine kinase domain). ...
journal_title:Clinical genetics
pub_type: 信件
doi:10.1111/cge.13064
更新日期:2017-11-01 00:00:00
abstract::Transient neonatal diabetes mellitus occurs in growth-retarded infants, has an incidence of 1 in 400000 live births and has been associated with both paternal uniparental disomy of chromosome 6 and paternal duplications of 6q. We analysed samples from our cohort of patients with transient neonatal diabetes mellitus fo...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1998.tb03774.x
更新日期:1998-12-01 00:00:00
abstract::Previous studies have investigated the close association that exists between CAG repeat number and the age at onset in SCA2 = spinocerebellar ataxia type 2. These studies have focused on affected individuals. To further characterize this association and estimate the risk of a carrier developing SCA2 at a particular ag...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.2009.01358.x
更新日期:2010-08-01 00:00:00
abstract::Clinical evaluation of a 13 1/2-year-old male revealed a 4.4-cm leg length discrepancy and a small penis with a normal endocrine evaluation. Cytogenetic analysis of peripheral blood lymphocytes and skin fibroblasts derived from the back showed 45,X/46,XY mosaicism with similar percentages of 45,X cells, 36% and 30% re...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1991.tb03084.x
更新日期:1991-09-01 00:00:00
abstract::Aicardi-Goutières Syndrome is caused by IFIH1 mutations Oda et al.(2014) The American Journal of Human Genetics 95(1): 121-125. Gain-of-function mutations in IFIH1 cause a spectrum of human disease phenotypes associated with upregulated type I interferon signaling Rice et al.(2014) Nature Genetics 46(5): 503-510. ...
journal_title:Clinical genetics
pub_type: 评论,杂志文章
doi:10.1111/cge.12471
更新日期:2014-11-01 00:00:00
abstract::We describe a family with recurrent 11q23-qter deletion Jacobsen syndrome in two affected brothers, with unique mosaic deletion 'rescue' through development of uniparental disomy (UPD) in the mother and one of the brothers. Inheritance studies show that the deleted chromosome is of maternal origin in both boys, and mi...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.12164
更新日期:2014-04-01 00:00:00
abstract::Mitochondrial disorders (MDs) are caused by defects in 1 or multiple complexes of the oxidative phosphorylation (OXPHOS) machinery. MDs are associated with a broad range of clinical signs and symptoms, and have considerable clinical overlap with other neuromuscular syndromes. This overlap might be due to involvement o...
journal_title:Clinical genetics
pub_type: 杂志文章,评审
doi:10.1111/cge.13094
更新日期:2018-05-01 00:00:00
abstract::To obtain insight into the genetic variation of the low-density lipoprotein (LDL) receptor gene in Korean patients with familial hypercholesterolemia (FH), we used single-strand conformation polymorphism to screen all 18 exons and a promotor of the LDL receptor gene in 20 unrelated Korean FH patients. Four novel point...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.2000.570309.x
更新日期:2000-03-01 00:00:00
abstract::We present the findings of a "new" sublethal MCA syndrome in three siblings, one female and two boys, the only children of healthy, non-consanguineous parents. In addition to prenatal growth retardation and early demise, they presented the same pattern of multiple malformations: relative microcephaly with bird-headed ...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1997.tb02446.x
更新日期:1997-03-01 00:00:00
abstract::A mild type of autosomal recessive, non-syndromic mental retardation (NSMR) is linked to loci on chromosome 3p. This report delimits the MRT2A minimal critical region to 4.2 Mb between loci D3S3630 and D3S1304. This interval contains nine genes (IL5RA, TRNT1, LRRN1, SETMAR, SUMF1, ITPR1, BHLHB2, EDEM, and MRPS36P1). T...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.0009-9163.2004.00267.x
更新日期:2004-06-01 00:00:00
abstract::A 36-year-old man with schizoaffective disorder was found to have a de novo 46 XY inv (9) (q31.2q34.3). Phenotypical abnormalities are short stature, depressed nasal bridge, hypertelorism and slender shoulders. Paracentric inversion of chromosome 9 is a rare chromosome aberration. This case suggests a new candidate re...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1997.tb02419.x
更新日期:1997-01-01 00:00:00
abstract::An abnormality of chromosome 16 in which there is extra genetic material present on the short arm (46,XY, 16p+) has been identified. This chromosomal aberration was associated with multiple congenital anomalies, including mid-facial hypoplasia, arthrogryposis, and mental retardation. On the basis of the cytogenetic ap...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1981.tb00665.x
更新日期:1981-01-01 00:00:00
abstract::The von Hippel Lindau (VHL) syndrome is an inherited multi-tumour disorder characterised by clinical heterogeneity and high penetrance. The VHL gene has been shown to be a tumour-suppressor gene. A carrier of a germline mutation will be predisposed to a high variety of benign and malign tumours affecting different org...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.1999.560305.x
更新日期:1999-09-01 00:00:00
abstract::The effect of folic acid intake on the frequency of fragile X positive cells and some behavioural characteristics were evaluated in 5 boys and 4 adult males with the fragile X syndrome. The expression of fragile X was nullified in 6 and decreased in 3 of the 9 patients. Behavioural and motor ability were considered to...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1985.tb00232.x
更新日期:1985-05-01 00:00:00
abstract::Parkinson's disease (PD) is characterized by major alterations of neurotransmitter activity due to damage of the substantia nigra. Changes in neuropeptide concentration within the basal ganglia may play an important role in the putative dopaminergic-peptidergic interactions associated with the disease. Cholecystokinin...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.1999.560508.x
更新日期:1999-11-01 00:00:00
abstract::In this study, we examined the insertion/deletion (Ins/Del) and XbaI polymorphisms of the apolipoprotein B (APOB) gene and the -36delG polymorphism in the sterol regulatory element binding protein-1a (SREBP-1a) gene in 298 patients with non-diabetic angiographically assessed coronary artery disease (CAD), and 188 heal...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1034/j.1399-0004.2003.00057.x
更新日期:2003-05-01 00:00:00
abstract::Biochemical data are presented of a 29-year-old male, who shows progressive psychomotor retardation and a beta-galactosidase deficiency in leucocytes and cultured skin fibroblasts. Somatic cell hybridization studies show that this variant of GM1-gangliosidosis is based on a different gene mutation than is present in t...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1976.tb02272.x
更新日期:1976-04-01 00:00:00
abstract::Acrodysostosis is characterized by a peripheral dysostosis that is accompanied by short stature, midface hypoplasia, and developmental delay. Recently, it was shown that heterozygous point mutations in the PRKAR1A gene cause acrodysostosis with hormone resistance. By mutational analysis of the PRKAR1A gene we detected...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/cge.12106
更新日期:2013-12-01 00:00:00
abstract::The locus DXS255 was studied using the probe M27 beta in ten probands with Rett syndrome and in eight of their families. No evidence of uniparental disomy of the X chromosome was detected, as all informative probands had inherited an allele from each of their parents. Differential methylation of a CCGG site within the...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1993.tb03889.x
更新日期:1993-11-01 00:00:00
abstract::A syndrome of spastic paresis, mental retardation and glaucoma has been described only once previously (Heijbel & Jagell 1981). We describe three brothers, products of a marriage between first cousins once-removed, who appear to have the same syndrome. The brothers are not dysmorphic but they have slowly progressive s...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1986.tb01900.x
更新日期:1986-11-01 00:00:00
abstract::High lipoprotein(a) [Lp(a)] plasma concentrations, which are genetically determined by apo(a) size polymorphism, are directly associated with an increased risk for atherosclerosis. Patients with end-stage renal disease (ESRD), who show an enormous prevalence of cardiovascular disease, have elevated plasma concentratio...
journal_title:Clinical genetics
pub_type: 杂志文章
doi:10.1111/j.1399-0004.1997.tb04357.x
更新日期:1997-11-01 00:00:00