Abstract:
:There is significant evidence for genetic and phenotypic heterogeneity in X linked retinitis pigmentosa (XLRP). We have studied the linkage of XLRP in four Irish families to a number of polymorphic DNA markers. We report linkage between the DXS7 (L1.28) locus and the XLRP locus (Z = 3.445, theta = 0.00). Combined with the previously published data on British and Danish families, the genetic distance between the DXS7 and XLRP loci is now estimated at 5 cM with a maximum lod score of 13.026 and a 1-lod confidence interval of 0.75 to 9.5 cM. Linkage was also observed between 754 and XLRP (Z = 3.41, theta = 0.00) and between pERT87 and XLRP (Z = 1.37, theta = 0.1). The heterogeneity of XLRP is discussed in relation to these observations.
journal_name
J Med Genetjournal_title
Journal of medical geneticsauthors
Farrar GJ,Geraghty MT,Moloney JM,McConnell DJ,Humphries Pdoi
10.1136/jmg.25.4.222subject
Has Abstractpub_date
1988-04-01 00:00:00pages
222-6issue
4eissn
0022-2593issn
1468-6244journal_volume
25pub_type
杂志文章abstract::X linked spondyloepiphyseal dysplasia (SED) is caused by a growth defect of the vertebral bodies leading to characteristic changes in the vertebral bodies and a short trunk. The gene responsible for this disorder has previously been mapped to Xp22, with a maximum likelihood location between markers DXS16 and DXS92. We...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.33.5.432
更新日期:1996-05-01 00:00:00
abstract::Recent epidemiological interest has focused on separation of neural tube defects (NTD) into subgroups which may differ pathogenetically and aetiologically, for example, 'upper' and 'lower' spina bifida. In order to validate the use of pathologists' lesion descriptions by epidemiologists and others, a postal survey of ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.30.11.942
更新日期:1993-11-01 00:00:00
abstract:BACKGROUND:Orofacial cleft (OFC) is the most prevalent craniofacial birth defect. Genes involved in one-carbon, folate and vitamin B12 metabolisms have been associated with OFC but no study performed a concomitant assessment on genes involved in these three pathways. OBJECTIVE:We looked for potential genetic variants ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2016-104111
更新日期:2016-12-01 00:00:00
abstract::A new dicentric X isochromosome i(X)(pter to q2102 to pter) of similar size to a normal X is described in a girl with gonadal dysgenesis. In this non-mosaic case with an X short arm duplication, most of the stigmata associated with Turner's syndrome were absent. This structure was compared with that of six i(Xq) and t...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.16.4.278
更新日期:1979-08-01 00:00:00
abstract::The ICF syndrome is a rare disorder where patients show undercondensation of the heterochromatic blocks of chromosomes 1, 9, and 16 along with variable immunodeficiency. The undercondensation of the heterochromatic block appears to be restricted to a portion of PHA stimulated T cells. Patients with this syndrome also ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.32.7.502
更新日期:1995-07-01 00:00:00
abstract::We report two sisters with macrocephaly, epilepsy, and severe mental retardation. The first child was a 14 year old girl born at term after a normal pregnancy, with birth weight 3600 g and occipitofrontal circumference (OFC) 36 cm (75th centile). Her head size increased markedly during the first six months of life, an...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.34.10.849
更新日期:1997-10-01 00:00:00
abstract::We describe a female infant with mental retardation and some of the phenotypic features of Williams-Beuren syndrome. Chromosome analysis showed t(X;21)(q28;q11). Diagnosis, inactivation of the X chromosome, and possible involvement of the translocation breakpoints in the pathogenesis of this syndrome are discussed. ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.29.10.747
更新日期:1992-10-01 00:00:00
abstract::Two neonates with limb-body wall complex (LBWC) and complete absence of the external genitalia are presented. Our patients are the sixth and seventh cases of complete absence of the external genitalia recorded in English publications and the first two cases associated with LBWC. The incidence of complete absence of th...
journal_title:Journal of medical genetics
pub_type: 杂志文章,评审
doi:10.1136/jmg.25.5.340
更新日期:1988-05-01 00:00:00
abstract:BACKGROUND:The lethal short rib polydactyly syndromes (SRP type I-IV) are characterised by notably short ribs, short limbs, polydactyly, multiple anomalies of major organs, and autosomal recessive mode of inheritance. Among them, SRP type II (Majewski; MIM 263520) is characterised by short ovoid tibiae or tibial agenes...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmedgenet-2011-100717
更新日期:2012-04-01 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: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::Chromosome analysis of an infant with characteristic features of trisomy 18 is presented. The chromosome complement contained a modal count of 47 but there was only one No. 18. In addition, there were two metacentric chromosomes of different sizes. The two metacentric chromosomes were identified by G- and C-banding to...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.15.1.73
更新日期:1978-02-01 00:00:00
abstract:BACKGROUND:Familial haemophagocytic lymphohistiocytosis (FHL) has an autosomal recessive mode of inheritance and consists of at least three subtypes. FHL2 subtype with perforin (PRF1) mutation accounts for 30% of all FHL cases, while FHL with MUNC13-4 mutation was recently identified and designated as FHL3 subtype. OB...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.2004.021121
更新日期:2004-10-01 00:00:00
abstract:BACKGROUND:Few germline BRCA2 rearrangements have been described compared with the large number of germline rearrangements reported in the BRCA1 gene. However, some BRCA2 rearrangements have been reported in families that included at least one case of male breast cancer. OBJECTIVE:To estimate the contribution of large...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.2005.040212
更新日期:2006-09-01 00:00:00
abstract:BACKGROUND:Chromosome 13q deletion is associated with varying phenotypes, which seem to depend on the location of the deleted segment. Although various attempts have been made to link the 13q deletion intervals to distinct phenotypes, there is still no acknowledged consensus correlation between the monosomy of distinct...
journal_title:Journal of medical genetics
pub_type: 信件
doi:10.1136/jmg.2006.043059
更新日期:2007-01-01 00:00:00
abstract::We present an extended family with Li-Fraumeni syndrome characterised by gastric and breast carcinoma, glioma, sarcoma, and leukaemia. This family showed strong evidence of linkage to TP53, and three of four tumours analysed showed loss of the wild type allele. A codon 175 missense mutation was identified in exon 5 in...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.32.12.942
更新日期:1995-12-01 00:00:00
abstract::A syndrome of brachydactyly (absence of some middle or distal phalanges), aplastic or hypoplastic nails, symphalangism (ankylois of proximal interphalangeal joints), synostosis of some carpal and tarsal bones, craniosynostosis, and dysplastic hip joints is reported in five members of an Italian family. It may represen...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.13.5.394
更新日期:1976-10-01 00:00:00
abstract:BACKGROUND:The cytokines tumour necrosis factor (TNF)alpha and interleukin (IL)10 have been implicated in the pathogenesis of Crohn's disease (CD), with increased concentrations reported in patients with active disease. However, limited data exist on their effects on disease phenotype in the same population. Certain si...
journal_title:Journal of medical genetics
pub_type: 信件
doi:10.1136/jmg.2004.027425
更新日期:2005-06-01 00:00:00
abstract::In an attempt to relate the age at onset of Huntington's disease to parental factors, the effects of parental onset-age (Po) and the age of the transmitting parent at the birth of a subsequently affected child (Pc) have been examined in a sample of cases ascertained from Victorian kindreds. There was a significant pos...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.12.1.64
更新日期:1975-03-01 00:00:00
abstract::Bardet-Biedl syndrome (BBS) is an autosomal recessive condition characterised by rod-cone dystrophy, postaxial polydactyly, central obesity, mental retardation, hypogonadism, and renal dysfunction. BBS expression varies both within and between families and diagnosis is often difficult. We sought to define the conditio...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:
更新日期:1999-06-01 00:00:00
abstract::Rett syndrome (RS; MIM 312750) is a severe neurological disorder affecting exclusively females. Its prevalence is about 1 in 10,000 female births, and it is a prominent cause of profound mental handicap in women. RS is caused by mutations in the X-linked methyl CpG-binding protein 2 (MECP2) gene. These mutations were ...
journal_title:Journal of medical genetics
pub_type: 杂志文章,评审
doi:10.1136/jmg.2007.049452
更新日期:2007-07-01 00:00:00
abstract::Abnormalities of the L1CAM gene, a member of the immunoglobulin gene superfamily of neural cell adhesion molecules, are associated with X linked hydrocephalus and some allelic disorders. We describe a patient with X linked hydrocephalus and Hirschsprung's disease (HSCR) with a novel mutation in the L1CAM gene. This is...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.34.8.670
更新日期:1997-08-01 00:00:00
abstract::We report two sibs with features overlapping those of orofaciodigital syndrome type VI (Varadi syndrome). Both presented at birth with oculomotor abnormalities, dysmorphic facial features, and dysgenesis of the cerebellar vermis. There were minimal oral manifestations (high arched palate) in both of them and one had p...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:
更新日期:1999-02-01 00:00:00
abstract::Sorsby fundus dystrophy is an autosomal dominant disorder which both clinically and histopathologically bears striking similarities to age related macular degeneration, one of the leading causes of blindness in the developed world. Recent studies have suggested a genetic localisation of the disease to chromosome 22q i...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.32.3.240
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:Posterior polar cataract is a clinically distinctive opacity located at the back of the lens. It is commonly acquired in age related cataract, and may infrequently occur in pedigrees with congenital cataract. To date, five loci for autosomal dominant congenital posterior polar cataract have been identified. ...
journal_title:Journal of medical genetics
pub_type: 信件
doi:10.1136/jmg.2005.034876
更新日期:2006-10-01 00:00:00
abstract::A family is reported which a diabetic woman gave birth to two children with the caudal regression anomalad (CRA). There were no obvious genetic factors. This is the first reported familial case of CRA with maternal diabetes. ...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.16.1.17
更新日期:1979-02-01 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:BACKGROUND:A recent genetic study in mice and humans revealed the modulatory effect of MC1R (melanocortin-1 receptor) gene variants on kappa-opioid receptor mediated analgesia. It is unclear whether this gene affects basal pain sensitivity or the efficacy of analgesics acting at the more clinically relevant mu-opioid r...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.2004.027698
更新日期:2005-07-01 00:00:00
abstract::Fragile X syndrome is the major cause of inherited mental retardation. The molecular basis for the expression of the fragile X phenotype is the expansion of an unstable CGG repeat element which inhibits transcription of the FMR1 gene. The fragile X syndrome shows great diversity in its phenotype as well as in its cyto...
journal_title:Journal of medical genetics
pub_type: 杂志文章
doi:10.1136/jmg.32.11.907
更新日期:1995-11-01 00:00:00
abstract::Autism spectrum disorders represent a group of developmental disorders with strong genetic underpinnings. Several cytogenetic abnormalities or de novo mutations able to cause autism have recently been uncovered. In this study, the literature was reviewed to highlight genotype-phenotype correlations between causal gene...
journal_title:Journal of medical genetics
pub_type: 杂志文章,评审
doi:10.1136/jmg.2008.060871
更新日期:2009-01-01 00:00:00