Abstract:
:Although a seasonal trend in the birth distribution has been reported in cystic fibrosis (CF), this finding is still very controversial. The birth distribution of 113 patients with cystic fibrosis born in Saguenay-Lac-St-Jean (complete ascertainment) was analysed using two different statistical methods. Our results showed no monthly or seasonal birth variation. It is likely that a bias owing to incomplete ascertainment might explain why some previous studies found a seasonal trend in the birth distribution of cystic fibrosis.
journal_name
J Med Genetjournal_title
Journal of medical geneticsauthors
Daigneault J,Aubin G,Simard F,De Braekeleer Mdoi
10.1136/jmg.28.9.613subject
Has Abstractpub_date
1991-09-01 00:00:00pages
613-4issue
9eissn
0022-2593issn
1468-6244journal_volume
28pub_type
杂志文章abstract::The molecular characterisation of chromosomal aberrations in Xp22.3 has established the map position of several genes with mutations resulting in diverse phenotypes such as short stature (SS), chondrodysplasia punctata (CDPX), mental retardation (MRX), ichthyosis (XLI), and Kallmann syndrome (KAL). We describe the cli...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.30.10.838
更新日期:1993-10-01 00:00:00
abstract::A two generation family with neurofibromatosis type 2 (NF2) is presented in which a family member requested presymptomatic molecular diagnosis. Since the consultand's mother had clinically well defined NF2, he was quoted to be at 50% risk of carrying an NF2 mutation. Mutation screening in the mother did not show the c...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.34.11.934
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:Congenital chromosome abnormalities are relatively common in our species and among structural abnormalities the most common class is balanced reciprocal translocations. Determining the parental origin of de novo balanced translocations may provide insights into how and when they arise. While there is a gener...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.2009.069716
更新日期:2010-02-01 00:00:00
abstract:BACKGROUND:Following predictive testing for Huntington disease (HD), knowledge of one's carrier status may have consequences on disease onset. Our study aimed to address two questions. First, does knowledge of being a carrier of the pathological HD mutation trigger onset of the disease? Second, does this knowledge infl...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2016-104199
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:The use of array comparative genome hybridisation (CGH) analyses for investigation of children with mental retardation has led to the identification of a growing number of new microdeletion and microduplication syndromes, some of which have become clinically well characterised and some that await further del...
journal_title:Journal of medical genetics
pub_type: 信件
doi:10.1136/jmg.2008.065094
更新日期:2009-10-01 00:00:00
abstract::A new case of trisomy 19q13.2-->qter is described in a male child which was caused by a maternal balanced translocation (13;19)(p13;q13.2). The major clinical features detected in the patient included the following: facial dysmorphism, bilateral coloboma, narrow and hypoplastic nails, cardiac malformations (Fallot's t...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.30.8.697
更新日期:1993-08-01 00:00:00
abstract:BACKGROUND:Alport syndrome is a clinically heterogeneous, progressive nephropathy caused by mutations in collagen IV genes, namely COL4A3 and COL4A4 on chromosome 2 and COL4A5 on chromosome X. The wide phenotypic variability and the presence of incomplete penetrance suggest that a simple Mendelian model cannot complete...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2014-102822
更新日期:2015-03-01 00:00:00
abstract:BACKGROUND:Because the mitochondrial respiratory chain (RC) is ubiquitous, its deficiency can theoretically give rise to any symptom in any organ or tissue at any age with any mode of inheritance, owing to the twofold genetic origin of respiratory enzyme machinery, that is, nuclear and mitochondrial. Not all respirator...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2017-105094
更新日期:2018-06-01 00:00:00
abstract::Hirschsprung disease, mental retardation, microcephaly, and specific craniofacial dysmorphism were observed in three children from a large, consanguineous, Moroccan family. A fourth child showed similar clinical features, with the exception of Hirschsprung disease. The association of these abnormalities in these child...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:
更新日期:1999-06-01 00:00:00
abstract::The chiasma distribution of bivalents 15 and 16 identified at diakinesis by a quadruple staining technique including DA-DAPI fluorescence has been investigated in two human males. The study has shown that chiasmata are not distributed at random. Both chromosomes have distally localised chiasmata, but in the long arm o...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.20.4.290
更新日期:1983-08-01 00:00:00
abstract::The association of maternal uniparental disomy for chromosome 7 and postnatal growth failure has been reported in four cases and suggests the presence of genomic imprinting of one or more growth related genes on chromosome 7. However, in the reported cases, the possibility of homozygosity for a recessive mutation coul...
journal_title:Journal of medical genetics
pub_type: 杂志文章,评审
doi:10.1136/jmg.32.11.871
更新日期:1995-11-01 00:00:00
abstract::An interstitial deletion of the region q22.1-->q22.3 of chromosome 14 is described in a child with bilateral anophthalmia, dysmorphic features including micrognathia, small tongue, and high arched palate, developmental and growth retardation, undescended testes with a micropenis, and hypothyroidism. Interstitial delet...
journal_title:Journal of medical genetics
pub_type: 杂志文章,评审
doi:10.1136/jmg.30.3.251
更新日期:1993-03-01 00:00:00
abstract::We describe the clinical and cytogenetic findings of two patients with deletions of the long arm of chromosome 2. One has an interstitial deletion identical to that found in a previously reported patient, although they are phenotypically dissimilar. The other patient has a terminal deletion, the first such deletion re...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.20.3.199
更新日期:1983-06-01 00:00:00
abstract::This is a study of 138 index patients with retinitis pigmentosa (RP) and their families, in which the selection of index patients was solely on the basis of their residence in Birmingham. Clinical analysis showed that severe disease was as likely to indicate dominant or non-genetic RP as to indicate recessive disease,...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.21.6.421
更新日期:1984-12-01 00:00:00
abstract::Recently, there have been several molecular studies of trisomic fetuses and liveborns which have examined the parent and meiotic stage of origin of nondisjunction. However, little is known about the possible phenotypic effects of the origin of trisomy. For trisomic spontaneous abortions, no distinct phenotype has been...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.35.11.924
更新日期:1998-11-01 00:00:00
abstract:BACKGROUND:Primary ovarian insufficiency (POI) affects 1% of women under 40 years and is a public health problem. The genetic causes of POI are highly heterogeneous with isolated or syndromic forms. Recently, variants in genes involved in DNA repair have been shown to cause POI. Notably, syndromic POI with Fanconi anae...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2019-106672
更新日期:2020-06-01 00:00:00
abstract::Approximately 5%-10% of breast cancers are due to genetic predisposition caused by germline mutations; the most commonly tested genes are BRCA1 and BRCA2 mutations. Some mutations are unique to one family and others are recurrent; the spectrum of BRCA1/BRCA2 mutations varies depending on the geographical origins, popu...
journal_title:Journal of medical genetics
pub_type: 杂志文章,评审
doi:10.1136/jmedgenet-2015-103132
更新日期:2016-01-01 00:00:00
abstract::Cultivated cells obtained by amniocentesis for antenatal diagnosis were examined for the presence of keratin filaments by immunofluorescent staining techniques. In primary cultures, cells in fibroblast type colonies do not possess keratin filaments whereas cells in epithelial type colonies show positive staining of ke...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.19.6.433
更新日期:1982-12-01 00:00:00
abstract:BACKGROUND:HLA-DRB1 is the strongest susceptibility gene to rheumatoid arthritis (RA). HLA-DRB1 alleles showed significant non-additive and interactive effects on susceptibility to RA in the European population, but these effects on RA susceptibility should vary between populations due to the difference in allelic dist...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2017-104779
更新日期:2017-12-01 00:00:00
abstract::In this report we describe two families with variable manifestations of the EEC syndrome. The findings in these families confirm that no symptom is obligatory for the diagnosis of EEC syndrome. In the absence of cleft lip/palate, EEC patients have a characteristic facial morphology with maxillary hypoplasia, short phi...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.27.3.165
更新日期:1990-03-01 00:00:00
abstract::Recently five patients with an Albright hereditary osteodystrophy (AHO)-like phenotype were reported to have a subtelomeric deletion of the long arm of chromosome 2. These patients showed a striking resemblance to a number of patients from a large pedigree known to us for a long time. After molecular confirmation of a...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:
更新日期:1999-08-01 00:00:00
abstract:BACKGROUND:Autistic spectrum disorders (ASDs) with developmental delay and seizures are a genetically heterogeneous group of diseases caused by at least 700 different genes. Still, a number of cases remain genetically undiagnosed. OBJECTIVE:The objective of this study was to identify and characterise pathogenic varian...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2018-105927
更新日期:2020-02-01 00:00:00
abstract::We report two patients with suspected hereditary liability to pressure palsies. Neurophysiological studies showed a mixed axonal-demyelinating sensory-motor polyneuropathy with focal slowing of conduction velocities at the common sites of entrapment. Morphological studies on sural nerve biopsy from the proband showed ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.34.11.889
更新日期:1997-11-01 00:00:00
abstract::Ehlers-Danlos syndrome (EDS) is a heterogeneous group of connective tissue disorders. Recently mutations have been found in the genes for type V collagen in a small number of people with the most common forms of EDS, types I and II. Here we characterise a COL5A2 mutation in an EDS II family. Cultured dermal fibroblast...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.35.10.846
更新日期:1998-10-01 00:00:00
abstract::The use of genome wide single nucleotide polymorphism (SNP) arrays for high resolution molecular cytogenetic analysis using a combination of quantitative and genotype analysis is well established. This study demonstrates that by Mendelian analysis of the SNP genotypes of the parents and a sibling or other appropriate ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.2009.069971
更新日期:2010-10-01 00:00:00
abstract::Costovertebral dysplasia comprises multiple malformations of the vertebrae and ribs, with a characteristic clinical picture of short trunk dwarfism, short neck, scoliosis, and rib cage deformity. We describe two sibs with the syndrome who are presumed to represent the autosomal recessive form of the disorder. One sib ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.20.6.441
更新日期:1983-12-01 00:00:00
abstract::A 5-month-old infant was examined because of minor multiple malformations. He was found to have a de novo blanced reciprocal translocation 46,XY,t(6;8(q13;q22). On follow-up at the age of 17 months his mental development was found to be within normal limits. ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.14.2.142
更新日期:1977-04-01 00:00:00
abstract::In order to identify a gene(s) susceptible to idiopathic pulmonary fibrosis (IPF), we conducted a genome-wide association (GWA) study by genotyping 159 patients with IPF and 934 controls for 214 508 tag single-nucleotide polymorphisms (SNPs). We further evaluated selected SNPs in a replication sample set (83 cases and...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.2008.057356
更新日期:2008-10-01 00:00:00
abstract::The m.8993T-->C MTATP6 mutation of mitochondrial DNA (mtDNA) usually causes mitochondrial disease in childhood, but was recently described in a family with adult onset ataxia and polyneuropathy. Cytochrome c oxidase muscle histochemistry, which is the standard clinical investigation for mitochondrial disease in adults...
journal_title:Journal of medical genetics
pub_type: 信件
doi:10.1136/jmg.2007.052902
更新日期:2007-12-01 00:00:00
abstract:BACKGROUND:In total, 43 patients having short stature syndrome in 37 Yakut families with autosomal recessive prenatal and postnatal nonprogressive growth failure and facial dysmorphism but with normal intelligence have been identified. METHODS:Because Yakuts are considered as a population isolate and the disease is ra...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.2007.051979
更新日期:2007-12-01 00:00:00