Instability of the CGG repeat at the FRAXA locus and variable phenotypic expression in a large fragile X pedigree.

abstract：:A cohort of 33 people at risk for Huntington's disease (HD), applying for genetic testing, were tested with a battery of neuropsychological tests covering attentional, visuospatial, learning, memory, and planning functions. A psychiatric rating scale, SCL-90R, was also applied, mainly as a control, since cognitive dys...

journal_title：Journal of medical genetics

authors： Rosenberg NK,Sørensen SA,Christensen AL

更新日期：1995-08-01 00:00:00

abstract：:New techniques of DNA analysis have been applied to the prenatal diagnosis of the common haemoglobin disorders. Currently, it is possible to provide a comprehensive programme for the prevention of these conditions, although this entails the use of several different techniques including globin chain synthesis analysis,...

journal_title：Journal of medical genetics

authors： Weatherall DJ,Old JM,Thein SL,Wainscoat JS,Clegg JB

更新日期：1985-12-01 00:00:00

abstract：BACKGROUND:Selection for genetic testing of BRCA1/BRCA2 is an important area of healthcare. Although testing costs for mutational analysis are falling, costs in North America remain in excess of US$3000 (UK price can be 690 pounds). Guidelines in most countries use a 10-20% threshold of detecting a mutation in BRCA1/2 ...

journal_title：Journal of medical genetics

authors： Evans DG,Lalloo F,Cramer A,Jones EA,Knox F,Amir E,Howell A

更新日期：2009-12-01 00:00:00

abstract：:PurposeThe purpose of this document is to provide guidance for the use of next-generation sequencing (NGS, also known as massively parallel sequencing or MPS) in Canadian clinical genetic laboratories for detection of genetic variants in genomic DNA and mitochondrial DNA for inherited disorders, as well as somatic var...

journal_title：Journal of medical genetics

authors： Hume S,Nelson TN,Speevak M,McCready E,Agatep R,Feilotter H,Parboosingh J,Stavropoulos DJ,Taylor S,Stockley TL,Canadian College of Medical Geneticists (CCMG).

更新日期：2019-12-01 00:00:00

abstract：:To define the PKD1 locus further, the gene involved in the most frequent form of adult polycystic kidney disease, probes from 16 polymorphic loci were mapped on 16p13.1-pter with the combined use of cell lines containing rearranged chromosomes and family studies. Five breakpoints in the distal part of 16p arbitrarily ...

journal_title：Journal of medical genetics

authors： Breuning MH,Snijdewint FG,Brunner H,Verwest A,Ijdo JW,Saris JJ,Dauwerse JG,Blonden L,Keith T,Callen DF

更新日期：1990-10-01 00:00:00

abstract：:We have analysed 40 marker loci on 13 chromosomes for linkage with Marfan syndrome. None of the loci was linked to the Marfan syndrome locus at theta = 0.00. This study provides a basis for an exclusion map and for further collaboration in mapping of the locus. ...

journal_title：Journal of medical genetics

authors： Schwartz RC,Blanton SH,Hyde CA,Sottile TR Jr,Hudgins L,Sarfarazi M,Tsipouras P

更新日期：1990-02-01 00:00:00

abstract：:Two cases of growth failure, microcephaly, facial dysmorphism, muscular hypertonia, and severe psychomotor retardation are described. At birth, both cases had cytogenetic mosaicism in lymphocytes and skin fibroblasts, in case 1 ring chromosome 21 and monosomy 21 and in case 2, deletion of chromosome 21 and monosomy 21...

journal_title：Journal of medical genetics

authors： Bartsch O,Petersen MB,Stuhlmann I,Mau G,Frantzen M,Schwinger E,Antonarakis SE,Mikkelsen M

更新日期：1994-07-01 00:00:00

abstract：:An 18 month old girl with dysmorphic features, severe developmental delay, multiple strawberry naevi, and capillary naevi is described. No previous report of a similar association of features has been identified. ...

journal_title：Journal of medical genetics

authors： Upton CJ,Young ID

更新日期：1993-10-01 00:00:00

abstract：BACKGROUND:Infertility affects approximately 15% of couples worldwide with male infertility being responsible for approximately 50% of cases. Although accumulating evidence demonstrates the critical role of the X chromosome in spermatogenesis during the last few decades, the expression patterns and potential impact of ...

journal_title：Journal of medical genetics

authors： Lu C,Zhang Y,Qin Y,Xu Q,Zhou R,Cui Y,Zhu Y,Zhang X,Zhang J,Wei X,Wang M,Hang B,Mao JH,Snijders AM,Liu M,Hu Z,Shen H,Zhou Z,Guo X,Wu X,Wang X,Xia Y

更新日期：2021-01-01 00:00:00

abstract：:The APC gene was investigated in 31 unrelated polyposis coli families by SSCP analysis and the protein truncation test. Twenty-three germline mutations were identified which gave rise to a variety of different phenotypes. Some of these mutations have already been described; however we report six previously unpublished...

journal_title：Journal of medical genetics

authors： Dobbie Z,Spycher M,Mary JL,Häner M,Guldenschuh I,Hürliman R,Amman R,Roth J,Müller H,Scott RJ

更新日期：1996-04-01 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

authors： El Hokayem J,Huber C,Couvé A,Aziza J,Baujat G,Bouvier R,Cavalcanti DP,Collins FA,Cordier MP,Delezoide AL,Gonzales M,Johnson D,Le Merrer M,Levy-Mozziconacci A,Loget P,Martin-Coignard D,Martinovic J,Mortier GR,Perez MJ

更新日期：2012-04-01 00:00:00

abstract：BACKGROUND:Mutations in the KIAA2022 gene have been reported in male patients with X-linked intellectual disability, and related female carriers were unaffected. Here, we report 14 female patients who carry a heterozygous de novo KIAA2022 mutation and share a phenotype characterised by intellectual disability and epile...

journal_title：Journal of medical genetics

authors： de Lange IM,Helbig KL,Weckhuysen S,Møller RS,Velinov M,Dolzhanskaya N,Marsh E,Helbig I,Devinsky O,Tang S,Mefford HC,Myers CT,van Paesschen W,Striano P,van Gassen K,van Kempen M,de Kovel CG,Piard J,Minassian BA,Nezar

更新日期：2016-12-01 00:00:00

abstract：:Abnormalities of dystrophin, the sarcoglycans, and laminin alpha2 are responsible for a subset of the muscular dystrophies. In this study we aim to characterise the nature and frequency of abnormalities of these proteins in an Australian population and to formulate an investigative algorithm to aid in approaching the ...

journal_title：Journal of medical genetics

authors： Jones KJ,Kim SS,North KN

更新日期：1998-05-01 00:00:00

abstract：BACKGROUND:Primary pulmonary hypertension (PPH), resulting from occlusion of small pulmonary arteries, is a devastating condition. Mutations of the bone morphogenetic protein receptor type II gene (BMPR2), a component of the transforming growth factor beta (TGF-beta) family which plays a key role in cell growth, have r...

journal_title：Journal of medical genetics

authors： Thomson JR,Machado RD,Pauciulo MW,Morgan NV,Humbert M,Elliott GC,Ward K,Yacoub M,Mikhail G,Rogers P,Newman J,Wheeler L,Higenbottam T,Gibbs JS,Egan J,Crozier A,Peacock A,Allcock R,Corris P,Loyd JE,Trembath RC,Nic

更新日期：2000-10-01 00:00:00

abstract：BACKGROUND:The cohesin complex plays an essential role in genome organisation and cell division. A full complement of the cohesin complex and its regulators is important for normal development, since heterozygous mutations in genes encoding these components can be sufficient to produce a disease phenotype. The implicat...

journal_title：Journal of medical genetics

authors： Schierding W,Horsfield JA,O'Sullivan JM

更新日期：2020-09-11 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

authors： David TJ,Glass A

更新日期：1983-12-01 00:00:00

abstract：:This paper describes a genetically male infant with impaired male sex development and partial 9p monosomy. The external genitalia were ambiguous with microphallus (penile length at birth 10 mm, mean age matched normal length 29 mm (SD 5)), hypospadias, and hypoplastic scrotum. The tests were undescended and severely h...

journal_title：Journal of medical genetics

authors： Ogata T,Muroya K,Matsuo N,Hata J,Fukushima Y,Suzuki Y

更新日期：1997-04-01 00:00:00

abstract：:Three hundred and fifty pregnancies were monitored by transabdominal amniocentesis in the fourteenth to sixteenth week of gestation followed by karyotyping or biochemica assays of cultured amniotic fluid cells and analysis of alpha-fetoprotein in the amniotic fluid supernatant. The pregnancy was interrupted in 36 case...

journal_title：Journal of medical genetics

authors： Niermeijer MF,Sachs ES,Jahodova M,Tichelaar-Klepper C,Kleijer WJ,Galjaard H

更新日期：1976-06-01 00:00:00

abstract：:Inherited optic neuropathies are a significant cause of childhood and adult blindness and dominant optic atrophy (DOA) is the most common form of autosomally inherited (non-glaucomatous) optic neuropathy. Patients with DOA present with an insidious onset of bilateral visual loss and they characteristically have tempor...

journal_title：Journal of medical genetics

authors： Votruba M,Moore AT,Bhattacharya SS

更新日期：1998-10-01 00:00:00

abstract：BACKGROUND:The AZFc region on the human Y chromosome has been found to be functionally important in spermatogenesis. Complete AZFc deletion is one of the most frequent causes of male infertility and the roles of partial AZFc deletions (gr/gr and b2/b3 deletions) in spermatogenesis are controversial. METHODS:To further...

journal_title：Journal of medical genetics

authors： Zhang F,Lu C,Li Z,Xie P,Xia Y,Zhu X,Wu B,Cai X,Wang X,Qian J,Wang X,Jin L

更新日期：2007-07-01 00:00:00

abstract：BACKGROUND:Isolated cytochrome c oxidase (COX) deficiency is usually associated with mutations in several factors involved in the biogenesis of COX. METHODS:We describe a patient with atypical, long surviving Leigh syndrome carrying two novel mutations in the COX15 gene, which encodes an enzyme involved in the biosynt...

journal_title：Journal of medical genetics

authors： Bugiani M,Tiranti V,Farina L,Uziel G,Zeviani M

更新日期：2005-05-01 00:00:00

abstract：BACKGROUND:Data on the long-term motor outcomes of genome-wide association study (GWAS)-linked Parkinson disease (PD) carriers are useful for clinical management. OBJECTIVES:To characterise the association between GWAS-linked PARK16 gene variant and disease progression in PD over a 9-year time frame. METHODS:Over a 9...

journal_title：Journal of medical genetics

authors： Deng X,Xiao B,Allen JC,Ng E,Foo JN,Lo YL,Tan LCS,Tan EK

更新日期：2019-11-01 00:00:00

abstract：:A case of a supernumerary metacentric small chromosome, diagnosed at birth, is described. The cytogenetic findings support its identification as i(18p). The clinical development from birth to 12 months is reported, with particular attention given to the psychomotor retardation and to the immunological aspect. ...

journal_title：Journal of medical genetics

authors： Rocchi M,Stormi M,Archidiacono N,Filippi G

更新日期：1979-02-01 00:00:00

abstract：:We report a 13 year old boy with fragile X syndrome resulting from a de novo deletion of the FMR1 and FMR2 genes extending from (and including) DXS7536 proximally to FMR2 distally. The patient has severe developmental delay, epilepsy, and behavioural difficulties, including autistic features. He has epicanthic folds, ...

journal_title：Journal of medical genetics

authors： Moore SJ,Strain L,Cole GF,Miedzybrodzka Z,Kelly KF,Dean JC

更新日期：1999-07-01 00:00:00

abstract：BACKGROUND:Ethylmalonic encephalopathy (EE) is a rare autosomal recessive metabolic disorder characterised by progressive encephalopathy, recurrent petechiae, acrocyanosis and chronic diarrhoea, with a fatal outcome in early in life. METHODS:14 patients with EE were investigated for mutations in the ETHE1 gene. RESUL...

journal_title：Journal of medical genetics

authors： Mineri R,Rimoldi M,Burlina AB,Koskull S,Perletti C,Heese B,von Döbeln U,Mereghetti P,Di Meo I,Invernizzi F,Zeviani M,Uziel G,Tiranti V

更新日期：2008-07-01 00:00:00

abstract：:C9orf72 repeat expansions is a major cause of familial frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (ALS) worldwide. Sizes of <20 hexanucleotide repeats are observed in controls, while up to thousands associate with disease. Intermediate C9orf72 repeat lengths, however, remain uncertain. We systemat...

journal_title：Journal of medical genetics

authors： Ng ASL,Tan EK

更新日期：2017-09-01 00:00:00

abstract：BACKGROUND:Four genetic causes of isolated congenital central hypothyroidism (CeH) have been identified, but many cases remain unexplained. We hypothesised the existence of other genetic causes of CeH with a Mendelian inheritance pattern. METHODS:We performed exome sequencing in two families with unexplained isolated ...

journal_title：Journal of medical genetics

authors： Heinen CA,de Vries EM,Alders M,Bikker H,Zwaveling-Soonawala N,van den Akker ELT,Bakker B,Hoorweg-Nijman G,Roelfsema F,Hennekam RC,Boelen A,van Trotsenburg ASP,Fliers E

更新日期：2018-10-01 00:00:00

abstract：:Usher syndrome type I is an autosomal recessive disease characterised by congenital sensorineural deafness, involvement of the vestibular system, and progressive visual loss owing to retinitis pigmentosa. Here we report the association of this disease with bronchiectasis, chronic sinusitis, and reduced nasal mucocilia...

journal_title：Journal of medical genetics

authors： Bonneau D,Raymond F,Kremer C,Klossek JM,Kaplan J,Patte F

更新日期：1993-03-01 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

authors： Craig K,Elliott HR,Keers SM,Lambert C,Pyle A,Graves TD,Woodward C,Sweeney MG,Davis MB,Hanna MG,Chinnery PF

更新日期：2007-12-01 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

authors： Telvi L,Pinard JM,Ion R,Sinet PM,Nicole A,Feingold J,Dulac O,Pompidou A,Ponsot G

更新日期：1992-10-01 00:00:00