Paternal uniparental disomy of chromosome 19 in a pair of monochorionic diamniotic twins with dysmorphic features and developmental delay.

Abstract:

BACKGROUND:We report here clinical, cytogenetic and molecular data for a pair of monochorionic diamniotic twins with paternal isodisomy for chromosome 19. Both twins presented with dysmorphic features and global developmental delay. This represents, to our knowledge, the first individual human case of paternal uniparental disomy for chromosome 19 (UPD19). METHODS:Whole-exome sequencing, together with conventional karyotype and SNP array analysis were performed along with genome-wide DNA methylation array for delineation of the underlying molecular defects. RESULTS:Conventional karyotyping on amniocytes and lymphocytes showed normal karyotypes for both twins. Whole-exome sequencing did not identify any pathogenic sequence variants but >5000 homozygous exonic variants on chromosome 19, suggestive of UPD19. SNP arrays on blood and buccal DNA both showed paternal isodisomy for chromosome 19. Losses of imprinting for known imprinted genes on chromosome 19 were identified, including ZNF331, PEG3, ZIM2 and MIMT1. In addition, imprinting defects were also identified in genes located on other chromosomes, including GPR1-AS, JAKMP1 and NHP2L1. CONCLUSION:Imprinting defects are the most likely cause for the dysmorphism and developmental delay in this first report of monozygotic twins with UPD19. However, epigenotype-phenotype correlation will require identification of additional individuals with UPD19 and further molecular analysis.

journal_name

J Med Genet

authors

Yeung KS,Ho MSP,Lee SL,Kan ASY,Chan KYK,Tang MHY,Mak CCY,Leung GKC,So PL,Pfundt R,Marshall CR,Scherer SW,Choufani S,Weksberg R,Hon-Yin Chung B

doi

10.1136/jmedgenet-2018-105328

subject

Has Abstract

pub_date

2018-12-01 00:00:00

pages

847-852

issue

12

eissn

0022-2593

issn

1468-6244

pii

jmedgenet-2018-105328

journal_volume

55

pub_type

杂志文章
  • A risk prediction algorithm for ovarian cancer incorporating BRCA1, BRCA2, common alleles and other familial effects.

    abstract:BACKGROUND:Although BRCA1 and BRCA2 mutations account for only ∼27% of the familial aggregation of ovarian cancer (OvC), no OvC risk prediction model currently exists that considers the effects of BRCA1, BRCA2 and other familial factors. Therefore, a currently unresolved problem in clinical genetics is how to counsel w...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmedgenet-2015-103077

    authors: Jervis S,Song H,Lee A,Dicks E,Harrington P,Baynes C,Manchanda R,Easton DF,Jacobs I,Pharoah PP,Antoniou AC

    更新日期:2015-07-01 00:00:00

  • Familial caudal regression anomalad and maternal diabetes.

    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

    authors: Stewart JM,Stoll S

    更新日期:1979-02-01 00:00:00

  • Evidence for digenic inheritance in some cases of Antley-Bixler syndrome?

    abstract::The Antley-Bixler syndrome has been thought to be caused by an autosomal recessive gene. However, patients with this phenotype have been reported with a new dominant mutation at the FGFR2 locus as well as in the offspring of mothers taking the antifungal agent fluconazole during early pregnancy. In addition to the cra...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.37.1.26

    authors: Reardon W,Smith A,Honour JW,Hindmarsh P,Das D,Rumsby G,Nelson I,Malcolm S,Adès L,Sillence D,Kumar D,DeLozier-Blanchet C,McKee S,Kelly T,McKeehan WL,Baraitser M,Winter RM

    更新日期:2000-01-01 00:00:00

  • Arachnoid cyst and chronic subdural haematoma in a child with osteogenesis imperfecta type III resulting from the substitution of glycine 1006 by alanine in the pro alpha 2(I) chain of type I procollagen.

    abstract::The features of a child with osteogenesis imperfecta type III (OI III) resulting from the heterozygous substitution of glycine 1006 by alanine in the pro alpha 2(I) chain of type I procollagen were studied. He was born at term with the clinical features of severe OI, including deep grey-blue sclerae. He had severe ost...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.33.3.193

    authors: Cole WG,Lam TP

    更新日期:1996-03-01 00:00:00

  • Three sisters with gonadoblastoma.

    abstract::Three sisters with gonadoblastoma and an 46,XY karyotype are presented. This observation suggests that heredity may play an important role in the genesis of the tumour. ...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.14.3.194

    authors: Ionescu B,Maximilian C

    更新日期:1977-06-01 00:00:00

  • A case of deletion 14(q22.1-->q22.3) associated with anophthalmia and pituitary abnormalities.

    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

    authors: Elliott J,Maltby EL,Reynolds B

    更新日期:1993-03-01 00:00:00

  • Pericentric inversions inv(2)(p11q13) and inv(2)(p13q11) in 2 unrelated families.

    abstract::Pericentric inversions in chromosome 2 were traced in 2 unrelated North American black families. In the case of inv(2)(p13q11) no effect on reproduction was observed. In the case of inv(2)(p11q13) some reproductive abnormalities were noted which might be related to the inversion. ...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.15.5.388

    authors: Phillips RB

    更新日期:1978-10-01 00:00:00

  • Genetic loci associated with lipid concentrations and cardiovascular risk factors in the Korean population.

    abstract:BACKGROUND:Dyslipidaemia, a key risk factor for cardiovascular disease (CVD), is strongly influenced by genetic factors. OBJECTIVE:To identify genetic factors affecting blood lipid concentrations and CVD risk factors in the Korean population by a candidate gene association analysis. METHODS:21 single nucleotide polym...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.2010.081000

    authors: Park MH,Kim N,Lee JY,Park HY

    更新日期:2011-01-01 00:00:00

  • Impaired male sex development in an infant with molecularly defined partial 9p monosomy: implication for a testis forming gene(s) on 9p.

    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

    pub_type: 杂志文章

    doi:10.1136/jmg.34.4.331

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

    更新日期:1997-04-01 00:00:00

  • Rhabdomyosarcoma in patients with constitutional mismatch-repair-deficiency syndrome.

    abstract:BACKGROUND:Biallelic germline mutations in the mismatch repair genes MLH1, MSH2, MSH6 or PMS2 cause a recessive childhood cancer syndrome characterised by early-onset malignancies and signs reminiscent of neurofibromatosis type 1 (NF1). Alluding to the underlying genetic defect, we refer to this syndrome as constitutio...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.2008.064212

    authors: Kratz CP,Holter S,Etzler J,Lauten M,Pollett A,Niemeyer CM,Gallinger S,Wimmer K

    更新日期:2009-06-01 00:00:00

  • Studies of non-disjunction in trisomies 2, 7, 15, and 22: does the parental origin of trisomy influence placental morphology?

    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

    authors: Zaragoza MV,Millie E,Redline RW,Hassold TJ

    更新日期:1998-11-01 00:00:00

  • CYLD mutations in familial skin appendage tumours.

    abstract:BACKGROUND:Germ-line mutations in CYLD are found in patients with familial skin appendage tumours. The protein product functions as a deubiquitinase enzyme, which negatively regulates NF-kappaB and c-Jun N-terminal kinase signalling. Brooke-Spiegler syndrome (BSS) is characterised by cylindromas, trichoepitheliomas and...

    journal_title:Journal of medical genetics

    pub_type: 信件

    doi:10.1136/jmg.2007.056127

    authors: Saggar S,Chernoff KA,Lodha S,Horev L,Kohl S,Honjo RS,Brandt HR,Hartmann K,Celebi JT

    更新日期:2008-05-01 00:00:00

  • P4HB recurrent missense mutation causing Cole-Carpenter syndrome.

    abstract:BACKGROUND:Cole-Carpenter syndrome (CCS) is commonly classified as a rare Osteogenesis Imperfecta (OI) disorder. This was following the description of two unrelated patients with very similar phenotypes who were subsequently shown to have a heterozygous missense mutation in P4HB. OBJECTIVES:Here, we report a 3-year ol...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmedgenet-2017-104899

    authors: Balasubramanian M,Padidela R,Pollitt RC,Bishop NJ,Mughal MZ,Offiah AC,Wagner BE,McCaughey J,Stephens DJ

    更新日期:2018-03-01 00:00:00

  • Heterochromatic polymorphism in spontaneous abortions.

    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

    pub_type: 杂志文章

    doi:10.1136/jmg.16.5.358

    authors: Hemming L,Burns C

    更新日期:1979-10-01 00:00:00

  • Mouse and hamster mutants as models for Waardenburg syndromes in humans.

    abstract::Four different Waardenburg syndromes have been defined based upon observed phenotypes. These syndromes are responsible for approximately 2% of subjects with profound congenital hearing loss. At present, Waardenburg syndromes have not been mapped to particular human chromosomes. One or more of the mouse mutant alleles,...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.27.10.618

    authors: Asher JH Jr,Friedman TB

    更新日期:1990-10-01 00:00:00

  • Anophthalmia with cleft palate and micrognathia: a new syndrome?

    abstract::A 5 day old male with bilateral anophthalmos, hypospadias, bifid scrotum, micrognathia, and cleft palate with normal chromosomes is described. There have been two case reports with similar clinical manifestations but associated with interstitial deletion of 14q (q22q23). We propose that either our patient represents a...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.31.12.960

    authors: Phadke SR,Sharma AK,Agarwal SS

    更新日期:1994-12-01 00:00:00

  • Studies of genetic linkage between adult polycystic kidney disease and three markers on chromosome 16.

    abstract::Adult polycystic kidney disease (APKD) is a common genetic disorder that is inherited as an autosomal dominant trait. Recent reports show that, in some families, the APKD gene shows close genetic linkage to two chromosome 16 specific genetic markers. We have been conducting a genetic linkage study using 29 polymorphic...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.24.8.457

    authors: Watson ML,Wright AF,Macnicol AM,Allan PL,Clayton JF,Dempster M,Jeremiah SJ,Corney G,Hopkinson DA

    更新日期:1987-08-01 00:00:00

  • Evaluation of BRCA1 and BRCA2 mutation prevalence, risk prediction models and a multistep testing approach in French-Canadian families with high risk of breast and ovarian cancer.

    abstract:BACKGROUND AND OBJECTIVE:In clinical settings with fixed resources allocated to predictive genetic testing for high-risk cancer predisposition genes, optimal strategies for mutation screening programmes are critically important. These depend on the mutation spectrum found in the population under consideration and the f...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章,多中心研究

    doi:10.1136/jmg.2006.044388

    authors: Simard J,Dumont M,Moisan AM,Gaborieau V,Malouin H,Durocher F,Chiquette J,Plante M,Avard D,Bessette P,Brousseau C,Dorval M,Godard B,Houde L,INHERIT BRCAs.,Joly Y,Lajoie MA,Leblanc G,Lépine J,Lespérance B,Vézina H,

    更新日期:2007-02-01 00:00:00

  • Extra small metacentric chromosome identified as i(18p).

    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

    pub_type: 杂志文章

    doi:10.1136/jmg.16.1.69

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

    更新日期:1979-02-01 00:00:00

  • Cleidocranial dysplasia: clinical and molecular genetics.

    abstract::Cleidocranial dysplasia (CCD) (MIM 119600) is an autosomal dominant skeletal dysplasia characterised by abnormal clavicles, patent sutures and fontanelles, supernumerary teeth, short stature, and a variety of other skeletal changes. The disease gene has been mapped to chromosome 6p21 within a region containing CBFA1, ...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章,评审

    doi:

    authors: Mundlos S

    更新日期:1999-03-01 00:00:00

  • Direct molecular analysis of myotonic dystrophy in the German population: important considerations in genetic counselling.

    abstract::Myotonic dystrophy (DM) is associated with the expansion and instability of a trinucleotide (CTG) repeat at the DM locus on chromosome 19. Direct genomic analysis in the German population was carried out on 18 DM families, six families with equivocal diagnosis, 69 subjects with equivocal clinical diagnosis, and 100 co...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.32.8.645

    authors: Meiner A,Wolf C,Carey N,Okitsu A,Johnson K,Shelbourne P,Kunath B,Sauermann W,Thiele H,Kupferling P

    更新日期:1995-08-01 00:00:00

  • Attitudes towards predictive testing in Huntington's disease: a recent survey in Belgium.

    abstract::After the publication of evidence of the existence of a DNA polymorphism closely linked to the gene for Huntington's disease, attitudes towards predictive testing for Huntington's disease were evaluated in Belgium in a group of persons who are at risk for the disease and in a smaller group of their partners. The perce...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.24.5.275

    authors: Evers-Kiebooms G,Cassiman JJ,van den Berghe H

    更新日期:1987-05-01 00:00:00

  • Methylenetetrahydrofolate reductase polymorphism and pre-eclampsia.

    abstract::A common missense mutation in the methylenetetrahydrofolate reductase (MTHFR) gene, a C to T substitution at nucleotide 677, is responsible for reduced MTHFR activity and associated with modestly increased plasma homocysteine concentrations. Since underlying maternal vascular disease increases the risk of pre-eclampsi...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.34.6.525

    authors: Sohda S,Arinami T,Hamada H,Yamada N,Hamaguchi H,Kubo T

    更新日期:1997-06-01 00:00:00

  • TSC1 and TSC2 mutations in patients with lymphangioleiomyomatosis and tuberous sclerosis complex.

    abstract:BACKGROUND:Lymphangioleiomyomatosis (LAM) is a prominent finding in the setting of tuberous sclerosis complex (TSC). OBJECTIVE:The present study was designed to compare cystic lung changes consistent with LAM in patients with a TSC1 disease-causing mutation, TSC2 disease-causing mutation, or no mutation identified (NM...

    journal_title:Journal of medical genetics

    pub_type: 信件

    doi:10.1136/jmg.2008.065342

    authors: Muzykewicz DA,Sharma A,Muse V,Numis AL,Rajagopal J,Thiele EA

    更新日期:2009-07-01 00:00:00

  • Genotype-phenotype correlation in hereditary multiple exostoses.

    abstract::Hereditary multiple exostoses (HME) is a genetically heterogeneous autosomal dominant disorder characterised by the development of bony protuberances mainly located on the long bones. Three HME loci have been mapped to chromosomes 8q24 (EXT1), 11p11-13 (EXT2), and 19p (EXT3). The EXT1 and EXT2 genes encode glycosyltra...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.38.7.430

    authors: Francannet C,Cohen-Tanugi A,Le Merrer M,Munnich A,Bonaventure J,Legeai-Mallet L

    更新日期:2001-07-01 00:00:00

  • Familial cryptic translocation between chromosomes 2qter and 8qter: further delineation of the Albright hereditary osteodystrophy-like phenotype.

    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:

    authors: Bijlsma EK,Aalfs CM,Sluitjer S,Oude Luttikhuis ME,Trembath RC,Hoovers JM,Hennekam RC

    更新日期:1999-08-01 00:00:00

  • Diamond-Blackfan anaemia in a girl with a de novo balanced reciprocal X;19 translocation.

    abstract::A 7 year old girl is described with congenital hypoplastic anaemia (Diamond-Blackfan anaemia, DBA) and an apparently balanced reciprocal translocation, 46,XX,t(X;19)(p21;q13). The girl has associated features including short stature, unilateral kidney hypoplasia, and a branchial cyst. Fluorescent in situ hybridisation...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.34.9.779

    authors: Gustavsson P,Skeppner G,Johansson B,Berg T,Gordon L,Kreuger A,Dahl N

    更新日期:1997-09-01 00:00:00

  • Genetic evidence for the role of loci at 19q13 in cleft lip and palate.

    abstract:BACKGROUND:Clefts of the lip and palate are common birth defects, affecting approximately 1 in 700 births worldwide. The aetiology of clefting is complex, with multiple genetic and environmental influences. METHODS:Genotype based linkage disequilibrium analysis was conducted using the family based association test (FB...

    journal_title:Journal of medical genetics

    pub_type: 信件

    doi:10.1136/jmg.2005.034785

    authors: Warrington A,Vieira AR,Christensen K,Orioli IM,Castilla EE,Romitti PA,Murray JC

    更新日期:2006-06-01 00:00:00

  • Identification and quantification of somatic mosaicism for a point mutation in a Duchenne muscular dystrophy family.

    abstract::Relatively few point mutations have been found in the dystrophin gene and of these only two have been associated with mosaicism. A single base insertion has been identified and quantified in a mother of two sons affected with Duchenne muscular dystrophy. It has been determined that she is a somatic mosaic with the mut...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:

    authors: Smith TA,Yau SC,Bobrow M,Abbs SJ

    更新日期:1999-04-01 00:00:00

  • Late discovery of a case of testicular feminisation.

    abstract::The accidental discovery, in an inguinal hernia, of a male gonad in a 67-year-old woman is reported. The association of an unambiguous female phenotype with a purely male karyotype and a male gonad suggests the diagnosis of testicular feminisation. The differential diagnosis, particularly of testicular feminisation wi...

    journal_title:Journal of medical genetics

    pub_type: 杂志文章

    doi:10.1136/jmg.15.3.229

    authors: Schindler AM,Csank-Brassert J

    更新日期:1978-06-01 00:00:00