Mechanisms for variable expressivity of inherited SCN1A mutations causing Dravet syndrome.

abstract：:Split hand-split foot malformation (SHFM) is a genetically heterogeneous limb developmental defect characterised by the absence of digital rays and syndactyly of the remaining digits. Three disease loci have recently been mapped to chromosomes 7q21 (SHFM1), Xq26 (SHFM2), and 10q25 respectively (SHFM3). We report the m...

journal_title：Journal of medical genetics

authors： Raas-Rothschild A,Manouvrier S,Gonzales M,Farriaux JP,Lyonnet S,Munnich A

更新日期：1996-12-01 00:00:00

abstract：:X chromosome inactivation is widely studied using DNA sequence polymorphisms and DNA methylation as a surrogate measure of inactivation, but the correlation of methylation with inactivation is not perfect. Thus, it may be better to study sequence polymorphisms expressed in the mRNA. A recent paper reported use of a si...

journal_title：Journal of medical genetics

authors： Mortazavi Y,Chopra R,Gordon-Smith EC,Rutherford TR

更新日期：1997-12-01 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：: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：: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：: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：BACKGROUND:Fryns syndrome (FS) is the commonest autosomal recessive syndrome in which congenital diaphragmatic hernia (CDH) is a cardinal feature. It has been estimated that 10% of patients with CDH have FS. The autosomal recessive inheritance in FS contrasts with the sporadic inheritance for the majority of patients w...

journal_title：Journal of medical genetics

authors： Slavotinek A,Lee SS,Davis R,Shrit A,Leppig KA,Rhim J,Jasnosz K,Albertson D,Pinkel D

更新日期：2005-09-01 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

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

authors： Phadke SR,Sharma AK,Agarwal SS

更新日期：1994-12-01 00:00:00

abstract：:In order to identify a gene(s) susceptible to idiopathic pulmonary fibrosis (IPF), we conducted a genome-wide association (GWA) study by genotyping 159 patients with IPF and 934 controls for 214 508 tag single-nucleotide polymorphisms (SNPs). We further evaluated selected SNPs in a replication sample set (83 cases and...

journal_title：Journal of medical genetics

authors： Mushiroda T,Wattanapokayakit S,Takahashi A,Nukiwa T,Kudoh S,Ogura T,Taniguchi H,Kubo M,Kamatani N,Nakamura Y,Pirfenidone Clinical Study Group.

更新日期：2008-10-01 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：BACKGROUND:Spinal and bulbar muscular atrophy (SBMA), also known as Kennedy's disease, is an X-linked motor neuron disorder caused by an expanded CAG repeat in the gene coding for the androgen receptor (AR). The range and significance of reduced penetrance alleles in SBMA has not been fully determined to date. We prese...

journal_title：Journal of medical genetics

authors： Laskaratos A,Breza M,Karadima G,Koutsis G

更新日期：2020-06-22 00:00:00

abstract：:This report concerns two families in which the index patients are sporadic cases of a benign form of muscular dystrophy. In both families the sisters of the patients have married a close relative. The respective risks for a child of these consanguineous marriages being affected with either X linked Becker muscular dys...

journal_title：Journal of medical genetics

authors： Wolff G,Müller CR,Grimm T

更新日期：1989-05-01 00:00:00

abstract：:A brother and two sisters of remotely consanguineous parents had congenital laryngeal abductor paralysis and moderate mental retardation. In the two older sibs, mental deficiency could have resulted from birth asphyxia, but the youngest girl was already microcephalic at birth and had no apparent asphyxia. The mother, ...

journal_title：Journal of medical genetics

authors： Schinzel A,Hof E,Dangel P,Robinson W

更新日期：1990-11-01 00:00:00

abstract：:Chromosome 1 is thought to represent about 6% of the total human genome and the 85 loci so far identified may constitute about 1% of the genes present on this chromosome. The existence of at least 22 loci sufficiently polymorphic in Europeans to be useful as genetic markers has allowed the construction of an elementar...

journal_title：Journal of medical genetics

authors： Povey S,Parrington JM

更新日期：1986-04-01 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：:We report on three Dutch children with a clinical diagnosis of oculoauriculovertebral spectrum (OAVS) and hydrocephalus. The clinical features are compared to 15 published cases of OAVS and hydrocephalus. Several other cerebral abnormalities were present in the whole group. About half of the cases had cleft lip/palate...

journal_title：Journal of medical genetics

authors： Schrander-Stumpel CT,de Die-Smulders CE,Hennekam RC,Fryns JP,Bouckaert PX,Brouwer OF,da Costa JJ,Lommen EJ,Maaswinkel-Mooy PD

更新日期：1992-05-01 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：:A study of the ethnic distribution of families attending genetic clinics in Birmingham has shown a deficit of Afro-Caribbean and Pakistani families. The former may be because of a deficiency of autosomal recessive diseases other than sickle cell disease, but the numbers are too small to be certain of this. The deficit...

journal_title：Journal of medical genetics

authors： Roberts A,Cullen R,Bundey S

更新日期：1996-01-01 00:00:00

abstract：:A 4 year old boy is reported with tyrosinase positive hypopigmentation, mental retardation, ataxia, and myopia. Radiological investigation showed occipital cerebral atrophy, coxa valga, and generalised osteoporosis. The skin histology and electron microscopy are reported and discussed. The clinical features are simila...

journal_title：Journal of medical genetics

authors： Patton MA,Baraitser M,Heagerty AH,Eady RA

更新日期：1987-02-01 00:00:00

abstract：:Eighty-six women fulfilling specific selection criteria were studied for germline mutations in two breast cancer susceptibility genes, BRCA1 and BRCA2, using the protein truncation test (PTT). Nine germline mutations were identified, six in BRCA1 and three in BRCA2. Of the six BRCA1 mutations, three have previously be...

journal_title：Journal of medical genetics

authors： Garvin AM,Attenhofer-Haner M,Scott RJ

更新日期：1997-12-01 00:00:00

abstract：:The phenotypic and quantitative relationship of red cell acid phosphatase with haemoglobin, haptoglobin, and G6PD phenotypes was investigated in three populations in the Sudan and one population in Nilgiris, India. No significant consistent association of red cell acid phosphatase phenotypes was observed with these po...

journal_title：Journal of medical genetics

authors： Saha N,Patgunarajah N

更新日期：1981-08-01 00:00:00

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

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

更新日期：1987-05-01 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：BACKGROUND:Junctional epidermolysis bullosa (JEB), a group of hereditary skin fragility disorders, is associated with a wide variety of phenotypes, although all forms are characterised by trauma induced skin blistering and tissue separation at the dermal-epidermal junction zone. A subgroup, coined JEB-other, is associa...

journal_title：Journal of medical genetics

authors： Kiritsi D,Kern JS,Schumann H,Kohlhase J,Has C,Bruckner-Tuderman L

更新日期：2011-07-01 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：BACKGROUND:The 5α-reductase type 2 (5α-RD2) deficiency caused by mutations in the steroid 5α-reductase 2 (SRD5A2) gene results in variable degrees of undervirilisation in patients with 46,XY disorders of sex development. This study aims to profile the regional distribution and phenotype-genotype characteristics of SRD5...

journal_title：Journal of medical genetics

authors： Gui B,Song Y,Su Z,Luo FH,Chen L,Wang X,Chen R,Yang Y,Wang J,Zhao X,Fan L,Liu X,Wang Y,Chen S,Gong C

更新日期：2019-10-01 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：:Cultivated cells obtained by amniocentesis for antenatal diagnosis were examined for the presence of keratin filaments by immunofluorescent staining techniques. In primary cultures, cells in fibroblast type colonies do not possess keratin filaments whereas cells in epithelial type colonies show positive staining of ke...

journal_title：Journal of medical genetics

authors： Chen WW

更新日期：1982-12-01 00:00:00

abstract：BACKGROUND:Rare variants in hundreds of genes have been implicated in developmental delay (DD), intellectual disability (ID) and neurobehavioural phenotypes. TNRC6B encodes a protein important for RNA silencing. Heterozygous truncating variants have been reported in three patients from large cohorts with autism, but no...

journal_title：Journal of medical genetics

authors： Granadillo JL,P A Stegmann A,Guo H,Xia K,Angle B,Bontempo K,Ranells JD,Newkirk P,Costin C,Viront J,Stumpel CT,Sinnema M,Panis B,Pfundt R,Krapels IPC,Klaassens M,Nicolai J,Li J,Jiang Y,Marco E,Canton A,Latronico

更新日期：2020-10-01 00:00:00