Fragile X syndrome is less common than previously estimated.

abstract：OBJECTIVES:To evaluate the feasibility of a reduced counselling programme for predictive genetic testing for hereditary non-polyposis colorectal cancer (HNPCC) in terms of counsellees' opinions on the extent and significance of genetic counselling and need for psychological support at different phases of the testing pr...

journal_title：Journal of medical genetics

authors： Aktan-Collan K,Mecklin JP,de la Chapelle A,Peltomäki P,Uutela A,Kääriäinen H

更新日期：2000-02-01 00:00:00

abstract：:Human chromosome 9 with a pericentric inversion involving the qh region is considered normal. It has probably evolved through breakage and reunion and is retained through mendelian inheritance without any apparent phenotypic consequences. Fluorescent in situ hybridisation (FISH) technique using alpha, beta, and satell...

journal_title：Journal of medical genetics

authors： Ramesh KH,Verma RS

更新日期：1996-05-01 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

authors： Roos L,Jønch AE,Kjaergaard S,Taudorf K,Simonsen H,Hamborg-Petersen B,Brøndum-Nielsen K,Kirchhoff M

更新日期：2009-10-01 00:00:00

abstract：:Results of genealogical, DNA, and clinical findings in 41 families with 235 patients affected with myotonic dystrophy (DM) led to the following observations. (1) The relative proportion of affected patients among blacks is apparently lower than among whites or orientals. (2) A significant excess of males was observed....

journal_title：Journal of medical genetics

authors： Passos-Bueno MR,Cerqueira A,Vainzof M,Marie SK,Zatz M

更新日期：1995-01-01 00:00:00

abstract：:DNA fingerprinting was performed to verify the pedigree structure of a family under investigation for an unusual case of beta thalassaemia. A higher than expected proportion of hypervariable bands was shared by the proband and his mother, leading to suspicion that the child had been the product of a consanguineous mat...

journal_title：Journal of medical genetics

authors： Wells RA,Wonke B,Thein SL

更新日期：1988-10-01 00:00:00

abstract：BACKGROUND:The extent which universally common or population-specific alleles can explain between-population variations in phenotypes is unknown. The heritable coronary heart disease risk factor lipoprotein(a) (Lp(a)) level provides a useful case study of between-population variation, as the aetiology of twofold higher...

journal_title：Journal of medical genetics

authors： Chretien JP,Coresh J,Berthier-Schaad Y,Kao WH,Fink NE,Klag MJ,Marcovina SM,Giaculli F,Smith MW

更新日期：2006-12-01 00:00:00

abstract：BACKGROUND:Over the last few years, array-comparative genomic hybridisation (CGH) has considerably improved our ability to detect cryptic unbalanced rearrangements in patients with syndromic mental retardation. METHOD:Molecular karyotyping of six patients with syndromic mental retardation was carried out using whole-g...

journal_title：Journal of medical genetics

authors： Le Meur N,Holder-Espinasse M,Jaillard S,Goldenberg A,Joriot S,Amati-Bonneau P,Guichet A,Barth M,Charollais A,Journel H,Auvin S,Boucher C,Kerckaert JP,David V,Manouvrier-Hanu S,Saugier-Veber P,Frébourg T,Dubourg C,Andr

更新日期：2010-01-01 00:00:00

abstract：:Linkage analysis of neurofibromatosis was performed using genes on chromosomes 1, 8, 11, and 12. No linkage was found between NF and C-myc, AT 3, IGF-1, PTH, and gamma globin genes. Evidence for linkage was found between C-ets 1, on the long arm of chromosome 11 and NF in two families with a lod score of 1.88 at theta...

journal_title：Journal of medical genetics

authors： Kittur S,Lubs ML,Bauer M,Chakravarti A,Kazazian H

更新日期：1987-09-01 00:00:00

abstract：BACKGROUND:Early infantile epileptic encephalopathies usually manifest as severely impaired cognitive and motor development and often result in a devastating permanent global developmental delay and intellectual disability. A large set of genes has been implicated in the aetiology of this heterogeneous group of disorde...

journal_title：Journal of medical genetics

authors： Edvardson S,Oz S,Abulhijaa FA,Taher FB,Shaag A,Zenvirt S,Dascal N,Elpeleg O

更新日期：2013-02-01 00:00:00

abstract：:Studies of migraine with aura (MA) have shown familial aggregation of the disorder, which cannot be explained by simple mendelian inheritance. The interest in a genetic basis for the disorder has increased after identification of three genetic loci for familial hemiplegic migraine (FHM), which is a rare subtype of MA ...

journal_title：Journal of medical genetics

authors： Ulrich V,Gervil M,Kyvik KO,Olesen J,Russell MB

更新日期：1999-03-01 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

authors： Elliott J,Maltby EL,Reynolds B

更新日期：1993-03-01 00:00:00

abstract：:Batten disease is the most common progressive neurodegenerative disorder of childhood in western countries. A novel cDNA responsible for Batten disease has recently been identified. We have developed a rapid diagnostic solid phase minisequencing test to detect the major 1.02 kb deletion which is responsible for 81% of...

journal_title：Journal of medical genetics

authors： Järvelä I,Mitchison HM,Munroe PB,O'Rawe AM,Mole SE,Syvänen AC

更新日期：1996-12-01 00:00:00

abstract：:A girl aged 14 years 9 months, overweight, with severe psychomotor retardation, short stature, a sheep-like face, malformed ears, skeletal and dermatoglyphic abnormalities, and partial deletion of the short arm of chromosome 1 is presented. The karyotype was 46,XX,del(1)(qter to p22::p32 to pter). ...

journal_title：Journal of medical genetics

authors： Bene M,Duca-Marinescu A,Ioan D,Maximilian C

更新日期：1979-08-01 00:00:00

abstract：BACKGROUND:Cohen syndrome is a rare autosomal recessive inherited disorder that results from mutations of the VPS13B gene. Clinical features consist of a combination of mental retardation, facial dysmorphism, postnatal microcephaly, truncal obesity, slender extremities, joint hyperextensibility, myopia, progressive cho...

journal_title：Journal of medical genetics

authors： El Chehadeh S,Aral B,Gigot N,Thauvin-Robinet C,Donzel A,Delrue MA,Lacombe D,David A,Burglen L,Philip N,Moncla A,Cormier-Daire V,Rio M,Edery P,Verloes A,Bonneau D,Afenjar A,Jacquette A,Heron D,Sarda P,Pinson L,Do

更新日期：2010-08-01 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

authors： Casilli F,Tournier I,Sinilnikova OM,Coulet F,Soubrier F,Houdayer C,Hardouin A,Berthet P,Sobol H,Bourdon V,Muller D,Fricker JP,Capoulade-Metay C,Chompret A,Nogues C,Mazoyer S,Chappuis P,Maillet P,Philippe C,Lortholar

更新日期：2006-09-01 00:00:00

abstract：:Osteogenesis imperfecta (OI) is characterised by brittle bones and caused by mutations in the type I collagen genes, COL1A1 and COL1A2. We identified a mutation in the carboxyl-terminal propeptide coding region of one COL1A1 allele in an infant who died with an OI phenotype that differed from the usual lethal form and...

journal_title：Journal of medical genetics

authors： Pace JM,Chitayat D,Atkinson M,Wilcox WR,Schwarze U,Byers PH

更新日期：2002-01-01 00:00:00

abstract：:The Smith-Lemli-Opitz syndrome (SLOS) is one of the archetypical multiple congenital malformation syndromes. The recent discovery of the biochemical cause of SLOS and the subsequent redefinition of SLOS as an inborn error of cholesterol metabolism have led to important new treatment possibilities for affected patients...

journal_title：Journal of medical genetics

authors： Kelley RI,Hennekam RC

更新日期：2000-05-01 00:00:00

abstract：BACKGROUND:Distal hereditary motor neuronopathies (dHMN) are a group of genetic disorders characterised by motor neuron degeneration leading to muscle weakness that are caused by mutations in various genes. HMNJ is a distinct form of the disease that has been identified in patients from the Jerash region of Jordan. Our...

journal_title：Journal of medical genetics

authors： Ververis A,Dajani R,Koutsou P,Aloqaily A,Nelson-Williams C,Loring E,Arafat A,Mubaidin AF,Horany K,Bader MB,Al-Baho Y,Ali B,Muhtaseb A,DeSpenza T Jr,Al-Qudah AA,Middleton LT,Zamba-Papanicolaou E,Lifton R,Christodoulou

更新日期：2020-03-01 00:00:00

abstract：:To sibs and an unrelated single patient have a combination of iris coloboma, ptosis, hypertelorism, broad nasal bridge, short stature, and mental retardation. The London Dysmorphology Database was used to determine whether this is a new syndrome. ...

journal_title：Journal of medical genetics

authors： Baraitser M,Winter RM

更新日期：1988-01-01 00:00:00

abstract：:A rapid PCR based assay was used to ascertain the presence of maternal cell contamination (MCC) in amniotic fluid cell cultures and to exclude MCC in cases where cytogenetic analysis was possible only from one primary cell culture. Six 6-carboxyfluorescein (FAM) and three 6-carboxyfluorescein hexachloride (HEX) labell...

journal_title：Journal of medical genetics

authors： Smith GW,Graham CA,Nevin J,Nevin NC

更新日期：1995-01-01 00:00:00

abstract：BACKGROUND:In 30-50% of patients with colorectal adenomatous polyposis, no germline mutation in the known genes APC, causing familial adenomatous polyposis, MUTYH, causing MUTYH-associated polyposis, or POLE or POLD1, causing polymerase-proofreading-associated polyposis can be identified, although a hereditary aetiolog...

journal_title：Journal of medical genetics

authors： Spier I,Drichel D,Kerick M,Kirfel J,Horpaopan S,Laner A,Holzapfel S,Peters S,Adam R,Zhao B,Becker T,Lifton RP,Perner S,Hoffmann P,Kristiansen G,Timmermann B,Nöthen MM,Holinski-Feder E,Schweiger MR,Aretz S

更新日期：2016-03-01 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

authors： Daniel A,Saville T,Southall DB

更新日期：1979-08-01 00:00:00

abstract：:A child with ambiguous genitalia, brought up phenotypically male, had a 46,XX/46,XY karyotype. At laparotomy, he had a left sided ovary and uterus, and a right sided scrotal testis. The 46,XX line made up 50% of cells in the blood and 90% of cells in a skin biopsy. There were no cytogenetic polymorphisms. Analysis of ...

journal_title：Journal of medical genetics

authors： Green AJ,Barton DE,Jenks P,Pearson J,Yates JR

更新日期：1994-10-01 00:00:00

abstract：:A Brazilian family of Italian descent is described in which the beta-thalassaemia gene is interacting with an alpha chain variant Hb Hasharon (alpha 47 Asp leads to His). One patient who was affected by homozygous beta 0-thalassaemia and heterozygous alpha Hasharon displayed the clinical picture of thalassaemia interm...

journal_title：Journal of medical genetics

authors： Zago MA,Costa FF,Bottura C

更新日期：1982-12-01 00:00:00

abstract：:Familial adenomatous polyposis (FAP) is characterised by hundreds of colorectal adenomas. Endocrine neoplasms have occasionally been reported, as have gastric polyps, which are usually hamartomatous in the fundus of the stomach and adenomatous in the antrum. A 57 year old man with colorectal, gastric, and periampullar...

journal_title：Journal of medical genetics

authors： Kartheuser A,Walon C,West S,Breukel C,Detry R,Gribomont AC,Hamzehloei T,Hoang P,Maiter D,Pringot J,Rahier J,Khan PM,Curtis A,Burn J,Fodde R,Verellen-Dumoulin C

更新日期：1999-01-01 00:00:00

abstract：OBJECTIVES:Current technologies for delivering gene testing are labour-intensive and expensive. Over the last 3 years, new high-throughput DNA sequencing techniques (next generation sequencing; NGS), with the capability to analyse multiple genes or entire genomes, have been rapidly adopted into research. This study exa...

journal_title：Journal of medical genetics

authors： O'Sullivan J,Mullaney BG,Bhaskar SS,Dickerson JE,Hall G,O'Grady A,Webster A,Ramsden SC,Black GC

更新日期：2012-05-01 00:00:00

abstract：:21-hydroxylase deficiency is a recessively inherited disorder of steroidogenesis, resulting from mutations in the CYP21 gene. This 3.5 kb gene and a highly related CYP21P pseudogene reside on tandemly duplicated 30 kb segments of DNA in the class III HLA region, and the great majority of pathogenic mutations result fr...

journal_title：Journal of medical genetics

authors： Lako M,Ramsden S,Campbell RD,Strachan T

更新日期：1999-02-01 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

authors： Bundey S,Crews SJ

更新日期：1984-12-01 00:00:00

abstract：:Angelman syndrome (AS) and Prader-Willi syndrome (PWS) have become the classical examples of genomic imprinting in man, as completely different phenotypes are generated by the absence of maternal (AS) or paternal (PWS) contributions to the q11-13 region of chromosome 15 as a result of deletion or uniparental disomy. A...

journal_title：Journal of medical genetics

authors： Meijers-Heijboer EJ,Sandkuijl LA,Brunner HG,Smeets HJ,Hoogeboom AJ,Deelen WH,van Hemel JO,Nelen MR,Smeets DF,Niermeijer MF

更新日期：1992-12-01 00:00:00

abstract：:We report an 18 year old female with a de novo ring chromosome 3 found after investigation for short stature. Her karyotype was interpreted as 46,XX, r(3)(p26.2q29). Her phenotype is milder than previously reported cases and illustrates the mild end of the spectrum of the ring chromosome 3 phenotype. ...

journal_title：Journal of medical genetics

authors： McKinley M,Colley A,Sinclair P,Donnai D,Andrews T

更新日期：1991-08-01 00:00:00