New insights into 5α-reductase type 2 deficiency based on a multi-centre study: regional distribution and genotype-phenotype profiling of SRD5A2 in 190 Chinese patients.

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：:A method is described to investigate the inheritance of disease predisposition in cancer families. It is an extension of classic genetic linkage analysis, which enables information on loss of constitutional heterozygosity (LOCH) to be incorporated into the model. This adapted model treats LOCH data as additional obser...

journal_title：Journal of medical genetics

authors： Teare MD,Rohde K,Santibáñez Koref MF

更新日期：1994-06-01 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：:A case of severe craniosynostosis-radial aplasia (Baller-Gerold) syndrome is described in a newborn male, following a pregnancy complicated by polyhydramnios and intrauterine growth retardation. Death occurred after two hours owing to a prolonged apnoeic spell. Extensive agenesis of the frontal and parietal bones, res...

journal_title：Journal of medical genetics

authors： Van Maldergem L,Verloes A,Lejeune L,Gillerot Y

更新日期：1992-04-01 00:00:00

abstract：:Since the advent of C-banding as a routine diagnostic procedure, the significance of heterochromatic polymorphism has been questioned. Some workers have considered variations in heterochromatin in chromosomes 1 and 9 to be associated with fetal wastage, recurrent abortions, and abnormal phenotypes. Over a 15-month per...

journal_title：Journal of medical genetics

authors： Hemming L,Burns C

更新日期：1979-10-01 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 clinical and haematological findings in 19 Liberians probably homozygous for beta thalassaemia are described. The haemoglobin patterns were similar with Hb F levels in the 30-50% range and a raised level of Hb A2 and, although the clinical severity varied widely, over half the cases were symptomless and even the m...

journal_title：Journal of medical genetics

authors： Willcox MC,Weatherall DJ,Clegg JB

更新日期：1975-06-01 00:00:00

abstract：:A family study is presented in which the father of a girl with severe cystic fibrosis (CF) was also found to have CF but was mildly affected. He was diagnosed with three positive sweat tests including one after suppression with fludrocortisone. Genetic analysis showed that he is a compound heterozygote with the delta ...

journal_title：Journal of medical genetics

authors： Barreto C,Pinto LM,Duarte A,Lavinha J,Ramsay M

更新日期：1991-06-01 00:00:00

abstract：BACKGROUND:Inherited disorders of fibrinogen are rare and affect either the quantity (hypofibrinogenaemia and afibrinogenaemia) or the quality of the circulating fibrinogen (dysfibrinogenaemia). Extensive allelic heterogeneity has been found for all three disorders: in congenital afibrinogenaemia >30 mutations, the maj...

journal_title：Journal of medical genetics

authors： Vu D,de Moerloose P,Batorova A,Lazur J,Palumbo L,Neerman-Arbez M

更新日期：2005-09-01 00:00:00

abstract：:The first Scottish family with pycnodysostosis is reported. The clinical and radiological findings in the two affected men are recorded. ...

journal_title：Journal of medical genetics

authors： Mills KL,Johnston AW

更新日期：1988-08-01 00:00:00

abstract：BACKGROUND:Infantile-onset encephalopathy and hypertrophic cardiomyopathy caused by mitochondrial oxidative phosphorylation defects are genetically heterogeneous with defects involving both the mitochondrial and nuclear genomes. OBJECTIVE:To identify the causative genetic defect in two sisters presenting with lethal i...

journal_title：Journal of medical genetics

authors： Spiegel R,Saada A,Flannery PJ,Burté F,Soiferman D,Khayat M,Eisner V,Vladovski E,Taylor RW,Bindoff LA,Shaag A,Mandel H,Schuler-Furman O,Shalev SA,Elpeleg O,Yu-Wai-Man P

更新日期：2016-02-01 00:00:00

abstract：:We report on a sex reversed Japanese child with a 46,X,Yp+ karyotype, minor dysmorphic features, and no testicular development. The Yp+ chromosome was derived by translocation of an Xp fragment (Xp21-Xp22.3) to Yp11.3. This has resulted in deletion of distal part of the Y chromosome pseudoautosomal region (DXYS15-telo...

journal_title：Journal of medical genetics

authors： Ogata T,Hawkins JR,Taylor A,Matsuo N,Hata J,Goodfellow PN

更新日期：1992-04-01 00:00:00

abstract：:Cytological and cytogenetic studies were performed on nucleated fetal cells present in chorionic villus transport medium. The erythroblastic origin of these cells was shown. Fetal erythroblasts in spontaneous mitosis were frequently observed; chromosome counts were obtained from them but poor quality often prevented b...

journal_title：Journal of medical genetics

authors： Terzoli G,Cartolano R,Rossella F,Cantù-Rajnoldi A,Brambati B,Fraccaro M,Simoni G

更新日期：1992-10-01 00:00:00

abstract：:Primary ciliary dyskinesia is an autosomal recessive condition characterised by chronic sinusitis, bronchiectasis, and subfertility. Situs inversus occurs in 50% of cases (Kartagener syndrome). It has an estimated incidence of 1 in 20 000 live births. The clinical phenotype is caused by defective ciliary function asso...

journal_title：Journal of medical genetics

authors： Meeks M,Walne A,Spiden S,Simpson H,Mussaffi-Georgy H,Hamam HD,Fehaid EL,Cheehab M,Al-Dabbagh M,Polak-Charcon S,Blau H,O'Rawe A,Mitchison HM,Gardiner RM,Chung E

更新日期：2000-04-01 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：:A family study of 32 patients with torsion dystonia has shown at least two forms of generalized dystonia with onset in childhood. These two forms, an autosomal dominant and an autosomal recessive, are clinically indistinguishable. There were at least three families and probably about six to eight patients with the aut...

journal_title：Journal of medical genetics

authors： Bundey S,Harrison MJ,Marsden CD

更新日期：1975-03-01 00:00:00

abstract：BACKGROUND:Members of two seemingly unrelated kindreds of Arab Moslem origin presented with pronounced early onset spastic paraparesis of upper and lower limbs, mild intellectual disability, kyphosis, pectus carinatum and hypertrichosis. METHODS:The authors performed neurological and developmental examinations on the ...

journal_title：Journal of medical genetics

authors： Zivony-Elboum Y,Westbroek W,Kfir N,Savitzki D,Shoval Y,Bloom A,Rod R,Khayat M,Gross B,Samri W,Cohen H,Sonkin V,Freidman T,Geiger D,Fattal-Valevski A,Anikster Y,Waters AM,Kleta R,Falik-Zaccai TC

更新日期：2012-07-01 00:00:00

abstract：:A 6-year-old boy with speech delay and mild mental retardation (IQ 82) was found to have a complex double translocation involving four chromosomes and a total of five breakpoints, two being on the same arm. This resulted in the karyotype 46,XY,t(2;4;7)(7;8)(q14;q31;q11q22;q13). As far as the authors are aware this is ...

journal_title：Journal of medical genetics

authors： Couzin DA,Watt JL,Auchterlonie IA

更新日期：1983-10-01 00:00:00

abstract：:An infant with features of trisomy 10p syndrome was found to have an abnormal chromosome 10: 46, XY, rec(10), dup p, inv(10) (p11q26) mat. The infant's mother was heterozygous for a pericentric inversion involving chromosome 10 (46, XX, inv (10) (p11q26). The infant's derivative chromosome was apparently produced by m...

journal_title：Journal of medical genetics

authors： Lansky-Shafer SC,Daniel WL,Ruiz L

更新日期：1981-02-01 00:00:00

abstract：BACKGROUND:The melanocortin-4-receptor gene (MC4R) is part of the melanocortinergic pathway that controls energy homeostasis. In a recent meta-analysis, the MC4R V103I (rs2229616) polymorphism was shown to be associated with body weight regulation. Although no functional differences between the isoleucine comprising re...

journal_title：Journal of medical genetics

authors： Heid IM,Vollmert C,Hinney A,Döring A,Geller F,Löwel H,Wichmann HE,Illig T,Hebebrand J,Kronenberg F,KORA Group.

更新日期：2005-04-01 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：:In type I familial amyloid polyneuropathy (FAP) caused by a variant Met30-transthyretin (TTR), genetic anticipation has been reported. To determine whether anticipation of the disease is a true biological phenomenon or the result of ascertainment bias, we compared age at onset of the affected child with that of the af...

journal_title：Journal of medical genetics

authors： Yamamoto K,Ikeda S,Hanyu N,Takeda S,Yanagisawa N

更新日期：1998-01-01 00:00:00

abstract：:To test the hypothesis that epidermal rather than dermal mosaicism determines Blaschko's lines in hypomelanosis of Ito (HI), we studied the distribution of chromosomal mosaicism in four patients. In two, mosaicism had not been detected in lymphocytes or dermal fibroblasts, but was clearly shown in epidermal keratinocy...

journal_title：Journal of medical genetics

authors： Moss C,Larkins S,Stacey M,Blight A,Farndon PA,Davison EV

更新日期：1993-09-01 00:00:00

abstract：BACKGROUND:Anticonvulsants taken in pregnancy are associated with an increased risk of malformations and developmental delay in the children. To evaluate the pattern of abnormalities associated with prenatal anticonvulsant exposure further, we undertook a clinical study of 57 children with fetal anticonvulsant syndrome...

journal_title：Journal of medical genetics

authors： Moore SJ,Turnpenny P,Quinn A,Glover S,Lloyd DJ,Montgomery T,Dean JC

更新日期：2000-07-01 00:00:00

abstract：:Cowden syndrome, or the multiple hamartoma syndrome, is a familial cancer syndrome with involvement of various organ systems. Inheritance is autosomal dominant with variable expression. Progressive macrocephaly, scrotal tongue, and mild to moderate mental retardation are important signs indicating the syndrome in youn...

journal_title：Journal of medical genetics

authors： Hanssen AM,Fryns JP

更新日期：1995-02-01 00:00:00

abstract：:A genetic study has been performed on five adrenoleucodystrophy families using DNA probes from Xq28. Members of each family had previously been tested for carrier status using the biochemical assay for very long chain fatty acids (VLCFAs), but several persons at risk had equivocal results. DNA analysis with four DNA p...

journal_title：Journal of medical genetics

authors： Del Mastro RG,Bundey S,Kilpatrick MW

更新日期：1990-11-01 00:00:00

abstract：OBJECTIVE:Deficiency of α-galactosidase A (αGal-A) in Fabry disease leads to the accumulation mainly of globotriaosylceramide (GL3) in multiple renal cell types. Glomerular podocytes are relatively resistant to clearance of GL3 inclusions by enzyme replacement therapy (ERT). Migalastat, an orally bioavailable small mol...

journal_title：Journal of medical genetics

authors： Mauer M,Sokolovskiy A,Barth JA,Castelli JP,Williams HN,Benjamin ER,Najafian B

更新日期：2017-11-01 00:00:00

abstract：:A 2-year-old boy with mental and growth retardation is presented; he has a 46,XY,r(10)(p15q26) chromosome complement. Five previously reported cases of ring chromosome 10 were reviewed and compared with the present case in an attempt to delineate a clinical syndrome. Since the first description, identified by Giemsa b...

journal_title：Journal of medical genetics

authors： Nakai H,Adachi M,Katsushima N,Yamazaki N,Sakamoto M,Tada K

更新日期：1983-04-01 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

authors： Handyside AH,Harton GL,Mariani B,Thornhill AR,Affara N,Shaw MA,Griffin DK

更新日期：2010-10-01 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