Linkage analysis of two Canadian families segregating for X linked spondyloepiphyseal dysplasia.

abstract：PURPOSE AND SCOPE:The aim of this Position Statement is to provide recommendations for Canadian medical geneticists, clinical laboratory geneticists, genetic counsellors and other physicians regarding the use of genome-wide sequencing of germline DNA in the context of clinical genetic diagnosis. This statement has been...

journal_title：Journal of medical genetics

authors： Boycott K,Hartley T,Adam S,Bernier F,Chong K,Fernandez BA,Friedman JM,Geraghty MT,Hume S,Knoppers BM,Laberge AM,Majewski J,Mendoza-Londono R,Meyn MS,Michaud JL,Nelson TN,Richer J,Sadikovic B,Skidmore DL,Stockley T,

更新日期：2015-07-01 00:00:00

abstract：:We describe the clinical and cytogenetic findings in a child with retinoblastoma and a translocation between chromosomes X and 13. The X;13 translocation in this patient does not involve band 13q14, the assigned locus for retinoblastoma. ...

journal_title：Journal of medical genetics

authors： Ponzio G,Savin E,Cattaneo G,Ghiotti MP,Marra A,Zuffardi O,Danesino C

更新日期：1987-07-01 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：: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

authors： Phillips RB

更新日期：1978-10-01 00:00:00

abstract：:The spontaneous and mitomycin C (MMC) induced sister chromatid exchange (SCE) frequencies were examined in five adults with myotonic dystrophy (MD). There was no significant difference in the spontaneous incidence of SCE between MD patients and controls. However, a significantly enhanced response to the induction of S...

journal_title：Journal of medical genetics

authors： Vijayalaxmi,Emery AE,Evans HJ

更新日期：1982-04-01 00:00:00

abstract：:A family is described in which the father and three of his seven children have microcephaly, mild to moderate mental retardation, and sparse hair. The two affected boys have generalised seizures in addition. ...

journal_title：Journal of medical genetics

authors： van Haeringen A,Hurst JA,Savidge R,Baraitser M

更新日期：1990-02-01 00:00:00

abstract：BACKGROUND:Azoospermia is the absence of a measurable level of spermatozoa in the semen. It affects approximately 1% of all men, and the genetic basis of the majority of idiopathic cases is unknown. We investigated two unrelated consanguineous families with idiopathic azoospermia. In family 1, there were three azoosper...

journal_title：Journal of medical genetics

authors： Ayhan Ö,Balkan M,Guven A,Hazan R,Atar M,Tok A,Tolun A

更新日期：2014-04-01 00:00:00

abstract：BACKGROUND:Several different missense mutations in the voltage-gated sodium channel subunit gene SCN1A have been identified in epileptic patients with benign phenotype and patients with severe phenotype. However, the reason why similar missense mutations in SCN1A result in different phenotypes has not yet been fully cl...

journal_title：Journal of medical genetics

authors： Kanai K,Yoshida S,Hirose S,Oguni H,Kuwabara S,Sawai S,Hiraga A,Fukuma G,Iwasa H,Kojima T,Kaneko S

更新日期：2009-10-01 00:00:00

abstract：:X inactivation studies have been carried out on 22 pairs of female monozygotic twins, one set of female monozygotic triplets, and their mothers and singleton sisters, using the probe M27 beta. Forty-eight per cent of the twins, 55% of their mothers, and 42% of their singleton sisters showed skewed X inactivation. Two ...

journal_title：Journal of medical genetics

authors： Watkiss E,Webb T,Rysiecki G,Girdler N,Hewett E,Bundey S

更新日期：1994-10-01 00:00:00

abstract：:Intelligence levels and intelligence profiles were investigated in 52 members of a large family with the fragile X syndrome. The mental abilities were evaluated by the three Wechsler intelligence tests (WAIS, WISC-R, and WPPSI). Chromosomal and psychological data were then compared. In 22 non-retarded fra(X) negative ...

journal_title：Journal of medical genetics

authors： Veenema H,Veenema T,Geraedts JP

更新日期：1987-01-01 00:00:00

abstract：:A child with unilateral radial aplasia, asymmetry, other malformations, and severe physical and mental retardation is reported. In blood and bone marrow cultures a low mosaicism for trisomy 22 was found. In a few cells a chromosome 22 was missing. The importance of early cytogenetic analysis on large numbers of cells ...

journal_title：Journal of medical genetics

authors： Dulitzky F,Shabtal F,Zlotogora J,Halbrecht I,Elian E

更新日期：1981-12-01 00:00:00

abstract：:Fragile X syndrome is caused by mutations in the FMR1 gene and is one of the most frequent forms of inherited mental retardation in males. Postnatal and prenatal diagnosis of fragile X syndrome is feasible by direct DNA analysis. A new approach to prenatal diagnosis of fragile X syndrome in amniotic fluid cells is des...

journal_title：Journal of medical genetics

authors： Willemsen R,Los F,Mohkamsing S,van den Ouweland A,Deelen W,Galjaard H,Oostra B

更新日期：1997-03-01 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

authors： Ballarati L,Rossi E,Bonati MT,Gimelli S,Maraschio P,Finelli P,Giglio S,Lapi E,Bedeschi MF,Guerneri S,Arrigo G,Patricelli MG,Mattina T,Guzzardi O,Pecile V,Police A,Scarano G,Larizza L,Zuffardi O,Giardino D

更新日期：2007-01-01 00:00:00

abstract：BACKGROUND:Deletions of the HOXC gene cluster result in variable phenotypes in mice, but have been rarely described in humans. OBJECTIVE:To report chromosome 12q13.13 microdeletions ranging from 13 to 175 kb and involving the 5' HOXC genes in four families, segregating congenital lower limb malformations, including cl...

journal_title：Journal of medical genetics

authors： Alvarado DM,McCall K,Hecht JT,Dobbs MB,Gurnett CA

更新日期：2016-04-01 00:00:00

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

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

更新日期：1998-11-01 00:00:00

abstract：BACKGROUND:Psoriasis is an immune-mediated skin disorder that is inherited as a multifactorial trait. Linkage analyses have clearly mapped a primary disease susceptibility locus to the major histocompatibility complex (MHC) region on chromosome 6p21. More recently, whole-genome association studies have identified two n...

journal_title：Journal of medical genetics

authors： Wolf N,Quaranta M,Prescott NJ,Allen M,Smith R,Burden AD,Worthington J,Griffiths CE,Mathew CG,Barker JN,Capon F,Trembath RC

更新日期：2008-02-01 00:00:00

abstract：BACKGROUND:We report here the genetic characterisation of a large five generation Chinese family with the phenotypic features of auditory neuropathy and progressive peripheral sensory neuropathy, and the genetic feature of X linked recessive inheritance. Disease onset was at adolescence (at an average age of 13 years f...

journal_title：Journal of medical genetics

authors： Wang QJ,Li QZ,Rao SQ,Lee K,Huang XS,Yang WY,Zhai SQ,Guo WW,Guo YF,Yu N,Zhao YL,Yuan H,Guan J,Leal SM,Han DY,Shen Y

更新日期：2006-07-01 00:00:00

abstract：BACKGROUND:A Y chromosomal role in prostate cancer has previously been suggested by both cytogenetic findings and patterns of Y chromosomal gene expression. We took advantage of the well established and stable phylogeny of the non-recombining segment of the Y chromosome to investigate the association between Y chromoso...

journal_title：Journal of medical genetics

authors： Paracchini S,Pearce CL,Kolonel LN,Altshuler D,Henderson BE,Tyler-Smith C

更新日期：2003-11-01 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

authors： Lintas C,Persico AM

更新日期：2009-01-01 00:00:00

abstract：:Fragile X syndrome, the main cause of inherited mental retardation, is caused by transcriptional silencing of the fragile X mental retardation gene, FMR1. Absence of the associated protein FMRP leads to the dysregulation of many genes creating a phenotype of ADHD, anxiety, epilepsy and autism. The core aim of this rev...

journal_title：Journal of medical genetics

authors： D'Hulst C,Kooy RF

更新日期：2009-09-01 00:00:00

abstract：:Clinical and radiographic evaluation of an infant boy and his father revealed findings suggesting a new variant of spondylometaphyseal dysplasia with an apparently autosomal dominant mode of inheritance. The main clinical findings included short stature and marked ligamentous laxity in the infant. X-ray findings inclu...

journal_title：Journal of medical genetics

authors： García-Castro JM,Isales-Forsythe CM,Díaz de Garau P

更新日期：1982-04-01 00:00:00

abstract：BACKGROUND:Mitochondrial DNA (mtDNA) disorders have a high clinical variability, mainly explained by variation of the mutant load across tissues. The high recurrence risk of these serious diseases commonly results in requests from at-risk couples for prenatal diagnosis (PND), based on determination of the mutant load o...

journal_title：Journal of medical genetics

authors： Vachin P,Adda-Herzog E,Chalouhi G,Elie C,Rio M,Rondeau S,Gigarel N,Jabot Hanin F,Monnot S,Borghese R,Bengoa J,Ville Y,Rotig A,Munnich A,Bonnefont JP,Steffann J

更新日期：2018-02-01 00:00:00

abstract：:A total of 592 cells was examined from 38 normal humans who had either small or very large Y chromosomes. Chromosome identification was based on the QFQ technique. The distance between the X and Y chromosome was measured from centromere to centromere. The spatial distance between X and Y was significantly smaller when...

journal_title：Journal of medical genetics

authors： Dosik D,Verma RS

更新日期：1983-12-01 00:00:00

abstract：:Huntington's disease (HD) is an autosomal dominant condition with almost complete penetrance. The age of onset of the symptoms, however, is variable and depends on the parental origin of the gene. A high proportion of early onset cases inherit the HD gene from their father, whereas a considerable proportion of late on...

journal_title：Journal of medical genetics

authors： Reik W

更新日期：1988-12-01 00:00:00

abstract：:The most useful markers for the prenatal diagnosis of myotonic dystrophy (DM) are APOC2 and CKM, both of which map proximal to DM. In order to produce other markers useful for DM, we have screened genomic DNA libraries constructed from cell line 20XP3542-1-4, which contains 20 to 30 Mb of human material including APOC...

journal_title：Journal of medical genetics

authors： Brook JD,Harley HG,Walsh KV,Rundle SA,Siciliano MJ,Harper PS,Shaw DJ

更新日期：1991-02-01 00:00:00

abstract：BACKGROUND:A marker chromosome is defined as a structurally abnormal chromosome that cannot be identified by routine cytogenetics. The risk for phenotypic abnormalities associated with a marker chromosome depends on several factors, including inheritance, mode of ascertainment, chromosomal origin, and the morphology, c...

journal_title：Journal of medical genetics

authors： Graf MD,Christ L,Mascarello JT,Mowrey P,Pettenati M,Stetten G,Storto P,Surti U,Van Dyke DL,Vance GH,Wolff D,Schwartz S

更新日期：2006-08-01 00:00:00

abstract：:A family study of hidradenitis suppurativa was undertaken based on 26 subjects with the disease. The probands were obtained from Hospital Activity Analysis (HAA) records for a three year period (1980 to 1983) and by direct referral from hospital specialists over a six month period (1983 to 1984). Family pedigree infor...

journal_title：Journal of medical genetics

authors： Fitzsimmons JS,Guilbert PR

更新日期：1985-10-01 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：: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

authors： Pintado E,de Diego Y,Hmadcha A,Carrasco M,Sierra J,Lucas M

更新日期：1995-11-01 00:00:00

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

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

更新日期：2009-07-01 00:00:00