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https://www.readbyqxmd.com/read/29334594/thoracic-aortic-aneurysm-in-patients-with-loss-of-function-filamin-a-mutations-clinical-characterization-genetics-and-recommendations
#1
Ming Hui Chen, Sangita Choudhury, Mami Hirata, Siri Khalsa, Bernard Chang, Christopher A Walsh
The frequency and gender distribution of thoracic aortic aneurysm as a cardiovascular manifestation of loss-of-function (LOF) X-linked FilaminA (FLNA) mutations are not known. Furthermore, there is very limited cardiovascular morbidity or mortality data in children and adults. We analyzed cardiac data on the largest series of 114 patients with LOF FLNA mutations, both children and adults, with periventricular nodular heterotopia (PVNH), including 48 study patients and 66 literature patients, median age of 22...
February 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29330547/recessive-loss-of-function-pign-alleles-including-an-intragenic-deletion-with-founder-effect-in-la-r%C3%A3-union-island-in-patients-with-fryns-syndrome
#2
Jean-Luc Alessandri, Christopher T Gordon, Marie-Line Jacquemont, Nicolas Gruchy, Norbert F Ajeawung, Guillaume Benoist, Myriam Oufadem, Asma Chebil, Yannis Duffourd, Coralie Dumont, Marion Gérard, Paul Kuentz, Thibaud Jouan, Francesca Filippini, Thi Tuyet Mai Nguyen, Olivier Alibeu, Christine Bole-Feysot, Patrick Nitschké, Asma Omarjee, Duksha Ramful, Hanitra Randrianaivo, Bérénice Doray, Laurence Faivre, Jeanne Amiel, Philippe M Campeau, Julien Thevenon
Fryns syndrome (FS) is a multiple malformations syndrome with major features of congenital diaphragmatic hernia, pulmonary hypoplasia, craniofacial dysmorphic features, distal digit hypoplasia, and a range of other lower frequency malformations. FS is typically lethal in the fetal or neonatal period. Inheritance is presumed autosomal recessive. Although no major genetic cause has been identified for FS, biallelic truncating variants in PIGN, encoding a component of the glycosylphosphatidylinositol (GPI)-anchor biosynthesis pathway, have been identified in a limited number of cases with a phenotype compatible with FS...
January 12, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29330474/a-de-novo-foxp1-truncating-mutation-in-a-patient-originally-diagnosed-as-c-syndrome
#3
Roser Urreizti, Sarah Damanti, Carla Esteve, Héctor Franco-Valls, Laura Castilla-Vallmanya, Raul Tonda, Bru Cormand, Lluïsa Vilageliu, John M Opitz, Giovanni Neri, Daniel Grinberg, Susana Balcells
De novo FOXP1 mutations have been associated with intellectual disability (ID), motor delay, autistic features and a wide spectrum of speech difficulties. C syndrome (Opitz C trigonocephaly syndrome) is a rare and genetically heterogeneous condition, characterized by trigonocephaly, craniofacial anomalies and ID. Several different chromosome deletions and and point mutations in distinct genes have been associated with the disease in patients originally diagnosed as Opitz C. By whole exome sequencing we identified a de novo splicing mutation in FOXP1 in a patient, initially diagnosed as C syndrome, who suffers from syndromic intellectual disability with trigonocephaly...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330115/pediatric-onset-evans-syndrome-heterogeneous-presentation-and-high-frequency-of-monogenic-disorders-including-lrba-and-ctla4-mutations
#4
Caroline Besnard, Eva Levy, Nathalie Aladjidi, Marie-Claude Stolzenberg, Aude Magerus-Chatinet, Olivier Alibeu, Patrick Nitschke, Stéphane Blanche, Olivier Hermine, Eric Jeziorski, Judith Landman-Parker, Guy Leverger, Nizar Mahlaoui, Gérard Michel, Isabelle Pellier, Felipe Suarez, Isabelle Thuret, Geneviève de Saint-Basile, Capucine Picard, Alain Fischer, Bénédicte Neven, Frédéric Rieux-Laucat, Pierre Quartier
Evans syndrome (ES) is defined by the combination of autoimmune hemolytic anemia and immune thrombocytopenia. Clinical presentation includes manifestations of immune dysregulation, found in primary immune deficiencies, autoimmune lymphoproliferative syndrome with FAS (ALPS-FAS), Cytotoxic T Lymphocyte Antigen-4 (CTLA-4) and Lipopolysaccharide-Responsive vesicle trafficking Beige-like and Anchor protein (LRBA) defects. We report the clinical history and genetic results of 18 children with ES after excluding ALPS-FAS...
January 9, 2018: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29329164/a-systematic-review-of-risk-factors-associated-with-cognitive-impairment-after-pediatric-critical-illness
#5
Alicia G Kachmar, Sharon Y Irving, Cynthia A Connolly, Martha A Q Curley
OBJECTIVES: To identify risk factors associated with cognitive impairment as assessed by neuropsychologic tests in neurotypical children after critical illness. DATA SOURCES: For this systematic review, we searched the Cochrane Library, Scopus, PubMed, Ovid, Embase, and CINAHL databases from January 1960 to March 2017. STUDY SELECTION: Included were studies with subjects 3-18 years old at the time of post PICU follow-up evaluation and use of an objective standardized neuropsychologic test with at least one cognitive functioning dimension...
January 11, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29328507/genetics-of-immune-mediated-inflammatory-diseases
#6
REVIEW
Trixy David, Stephanie Ling, Anne Barton
Immune-mediated inflammatory diseases (IMIDs) are characterised by dysregulation of the normal immune response, which leads to inflammation. Together, they account for a high disease burden in the population, given that they are usually chronic conditions with associated co-morbidities. Examples include systemic lupus erythematosus, rheumatoid arthritis, Crohn's disease and type 1 diabetes. Since the advent of genome-wide association studies, evidence of considerable genetic overlap in the loci predisposing to a wide range of IMIDs has emerged...
January 12, 2018: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29306563/yield-rate-of-chromosomal-microarray-analysis-in-fetuses-with-congenital-heart-defects
#7
Sifa Turan, Mehmet Resit Asoglu, Rinat Gabbay Benziv, Lauren Doyle, Christopher Harman, Ozhan M Turan
OBJECTIVE: The purpose of this study was to calculate the yield rates of CMA in fetuses diagnosed with various CHDs in a tertiary center. STUDY DESIGN: This cohort study collected prenatal genetic test results of 145 fetuses diagnosed with CHD. All 145 cases underwent Conventional karyotype (CK), followed by CMA in cases of negative CK result. "Detection rate" of genetic abnormalities was calculated as the percentage of cases with genetic abnormalities identified...
December 12, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29305299/identification-of-oaf-and-pvrl1-as-candidate-genes-for-an-ocular-anomaly-characterized-by-keratolenticular-dysgenesis-and-ectopia-lentis
#8
Dezső David, Deepti Anand, Carlos Araújo, Brian Gloss, Joana Fino, Marcel Dinger, Päivi Lindahl, Minna Pöyhönen, Laivuori Hannele, João Lavinha
Keratolenticular dysgenesis (KLD) and ectopia lentis are congenital eye defects. The aim of this study is the identification of molecular genetic alterations responsible for those ocular anomalies with neurologic impairment in an individual with a de novo balanced chromosome translocation t(11;18)(q23.3;q11.2)dn. Disruption of OAF, the human orthologue of the Drosophila oaf, by the 11q23.3 breakpoint results in reduced expression of this transcriptional regulator. Furthermore, four most likely nonfunctional chimeric transcripts comprising up to OAF exon 3, derived from the der(11) allele, have also been identified...
January 2, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29300383/genetic-analysis-of-charge-syndrome-identifies-overlapping-molecular-biology
#9
Amanda Moccia, Anshika Srivastava, Jennifer M Skidmore, John A Bernat, Marsha Wheeler, Jessica X Chong, Deborah Nickerson, Michael Bamshad, Margaret A Hefner, Donna M Martin, Stephanie L Bielas
PurposeCHARGE syndrome is an autosomal-dominant, multiple congenital anomaly condition characterized by vision and hearing loss, congenital heart disease, and malformations of craniofacial and other structures. Pathogenic variants in CHD7, encoding adenosine triphosphate-dependent chromodomain helicase DNA binding protein 7, are present in the majority of affected individuals. However, no causal variant can be found in 5-30% (depending on the cohort) of individuals with a clinical diagnosis of CHARGE syndrome...
January 4, 2018: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29273218/clinical-predictors-and-prevalence-of-receiving-special-preschool-school-support-in-children-with-repaired-esophageal-atresia
#10
Michaela Dellenmark-Blom, Linus Jönsson, Vladimir Gatzinsky, Kate Abrahamsson
BACKGROUND/PURPOSE: In a sparsely investigated field, we aimed to evaluate the use of special preschool/school support among children with repaired esophageal atresia (EA) and/or tracheoesophageal fistula (TEF), the predicting clinical factors for this support, and level of school absence. METHODS: Data on 119 EA/TEF children 2-17years old were collected through medical records and questionnaires (response rate 95%). Logistical regression analysis identified clinical predictors of special preschool/school support in the population without genetic disorders (n=105)...
November 28, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29261186/genomic-study-of-severe-fetal-anomalies-and-discovery-of-greb1l-mutations-in-renal-agenesis
#11
Sarah Boissel, Catherine Fallet-Bianco, David Chitayat, Valérie Kremer, Christina Nassif, Françoise Rypens, Marie-Ange Delrue, Dorothée Dal Soglio, Luc L Oligny, Natalie Patey, Elisabeth Flori, Mireille Cloutier, David Dyment, Philippe Campeau, Aspasia Karalis, Sonia Nizard, William D Fraser, François Audibert, Emmanuelle Lemyre, Guy A Rouleau, Fadi F Hamdan, Zoha Kibar, Jacques L Michaud
PurposeFetal anomalies represent a poorly studied group of developmental disorders. Our objective was to assess the impact of whole-exome sequencing (WES) on the investigation of these anomalies.MethodsWe performed WES in 101 fetuses or stillborns who presented prenatally with severe anomalies, including renal a/dysgenesis, VACTERL association (vertebral defects, anal atresia, cardiac defects, tracheoesophageal fistula, renal anomalies, and limb abnormalities), brain anomalies, suspected ciliopathies, multiple major malformations, and akinesia...
October 26, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29258970/mowat-wilson-syndrome-presenting-with-fever-associated-seizures
#12
Se Eun Seo, Se Hee Kim, Seung Tae Lee, Jong Rak Choi, Joon Soo Lee, Heung Dong Kim, Hoon-Chul Kang
Mowat-Wilson syndrome (MWS) is a disorder caused by mutations or deletions of the zinc finger E-box-binding homeobox 2 (ZEB2) gene. Diagnosis of MWS can be challenging to neurologists, because its manifestations are diverse and the spectrum of genetic mutations are broad. Here, we describe two patients with MWS who initially showed atypical forms of fever-triggered seizures during childhood. Both had characteristic facial features, cognitive impairment, and genito-urinary anomalies consistent with MWS. By performing targeted next-generation sequencing (NGS) using a gene panel for epilepsy, we were able to identify a nonsense mutation (c...
December 20, 2017: Epileptic Disorders: International Epilepsy Journal with Videotape
https://www.readbyqxmd.com/read/29244110/proteomic-profiling-of-human-uterine-fibroids-reveals-upregulation-of-the-extracellular-matrix-protein-periostin
#13
M Fairuz B Jamaluddin, Yi-An Ko, Manish Kumar, Yazmin Brown, Preety Bajwa, Prathima B Nagendra, David Skerrett-Byrne, Hubert Hondermarck, Mark A Baker, Matt D Dun, Rodney J Scott, Pravin Nahar, Pradeep S Tanwar
The central characteristics of uterine fibroid is excessive deposition of extracellular matrix (ECM), which contributes to fibroid growth and bulk-type symptoms. Despite this, very little is known about ECM protein expression patterns in fibroids and whether these are influenced by the most common genetic anomalies, which relate to MED12. We performed extensive genetic and proteomic analyses of clinically annotated fibroids and adjacent normal myometrium to identify the composition and expression patterns of ECM proteins in MED12 mutation-positive and mutation-negative uterine fibroids...
December 13, 2017: Endocrinology
https://www.readbyqxmd.com/read/29242060/higher-programmatic-volume-in-neonatal-heart-surgery-is-associated-with-lower-early-mortality
#14
Andrzej Kansy, Christine Zu Eulenburg, Georgios Sarris, Jeffrey P Jacobs, Jose Fragata, Zdzislaw Tobota, Tjark Ebels, Bohdan Maruszewski
BACKGROUND: The early results of Congenital Heart Surgery in neonates remain a challenge. We sought to determine the nature of the association between annual center volume of neonatal cardiac surgery and operative mortality using a multicenter cohort. METHODS: The dataset consists of 27,556 neonatal procedures performed between 1999 through 2015 in 90 centers participating in the ECHSA Database. Centers with mean annual volume load 6 or more that submitted data for at least 3 consecutive years were included...
December 11, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29237676/familial-ebstein-anomaly-whole-exome-sequencing-identifies-novel-phenotype-associated-with-flna
#15
Catherine L Mercer, Gaia Andreoletti, Aisling Carroll, Anthony P Salmon, I Karen Temple, Sarah Ennis
BACKGROUND: Familial Ebstein anomaly is a rare form of congenital heart disease. We report 7 individuals among 2 generations of 1 family with Ebstein anomaly. This family was first reported in 1991 by Balaji et al in which family members were also reported to have a mild skeletal phenotype. The most likely mechanism of inheritance was concluded to be autosomal dominant. We sought to identify the genetic pathogenesis in this family using a next generation sequencing approach. METHODS AND RESULTS: Whole exome sequencing was performed in 2 cousins in this family using the Agilent SureSelect Human all Exon 51 Mb version 5 capture kit...
December 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/29232625/prenatal-detection-of-trisomy-8-mosaicism-pregnancy-outcome-and-follow-up-of-a-series-of-17-consecutive-cases
#16
Matteo Cassina, Annapaola Calò, Leonardo Salviati, Alberta Alghisi, Annamaria Montaldi, Maurizio Clementi
OBJECTIVE: To study the outcome of a series of individuals with prenatal detection of trisomy 8 mosaicism by chorionic villus sampling (CVS) and/or amniocentesis. STUDY DESIGN: The databases of two Italian genetics units were reviewed to identify all consultations requested during pregnancy because of trisomy 8 mosaicism. To evaluate the pregnancy outcome, the regional registry of congenital malformations (including terminations of pregnancies) was consulted; additional follow-up data were collected by a telephone interview...
December 7, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29226580/a-novel-truncating-variant-within-exon-7-of-kat6b-associated-with-features-of-both-say-barber-bieseker-young-simpson-syndrome-and-genitopatellar-syndrome-further-evidence-of-a-continuum-in-the-clinical-spectrum-of-kat6b-related-disorders
#17
Giuseppe Marangi, Marilena C Di Giacomo, Serena Lattante, Daniela Orteschi, Sara Patrizi, Paolo N Doronzio, Francesco N Riviello, Alessandro Vaisfeld, Silvia Frangella, Marcella Zollino
KAT6B sequence variants have been identified in both patients with the Say-Barber-Biesecker-Young-Simpson syndrome (SBBYSS) and in the genitopatellar syndrome (GPS). In SBBYSS, they were reported to affect mostly exons 16-18 of KAT6B, and the predicted mechanism of pathogenesis was haploinsufficiency or a partial loss of protein function. Truncating variants in KAT6B leading to GPS appear to cluster within the proximal portion of exon 18, associated with a dominant-negative effect of the mutated protein, most likely...
December 11, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29223973/chromosomal-rearrangements-in-the-11p15-imprinted-region-17-new-11p15-5-duplications-with-associated-phenotypes-and-putative-functional-consequences
#18
Solveig Heide, Sandra Chantot-Bastaraud, Boris Keren, Madeleine D Harbison, Salah Azzi, Sylvie Rossignol, Caroline Michot, Marilyn Lackmy-Port Lys, Bénédicte Demeer, Claudine Heinrichs, Ron S Newfield, Pierre Sarda, Lionel Van Maldergem, Véronique Trifard, Eloise Giabicani, Jean-Pierre Siffroi, Yves Le Bouc, Irène Netchine, Frédéric Brioude
BACKGROUND: The 11p15 region contains two clusters of imprinted genes. Opposite genetic and epigenetic anomalies of this region result in two distinct growth disturbance syndromes: Beckwith-Wiedemann (BWS) and Silver-Russell syndromes (SRS). Cytogenetic rearrangements within this region represent less than 3% of SRS and BWS cases. Among these, 11p15 duplications were infrequently reported and interpretation of their pathogenic effects is complex. OBJECTIVES: To report cytogenetic and methylation analyses in a cohort of patients with SRS/BWS carrying 11p15 duplications and establish genotype/phenotype correlations...
December 9, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/29222262/pediatric-leukemia-susceptibility-disorders-manifestations-and-management
#19
REVIEW
Lisa J McReynolds, Sharon A Savage
The clinical manifestations of inherited susceptibility to leukemia encompass a wide phenotypic range, including patients with certain congenital anomalies or early-onset myelodysplastic syndrome (MDS) and some with no obvious medical problems until they develop leukemia. Leukemia susceptibility syndromes occur as a result of autosomal dominant, autosomal recessive, or X-linked recessive inheritance, or de novo occurrence, of germline pathogenic variants in DNA repair, ribosome biogenesis, telomere biology, hematopoietic transcription factors, tumor suppressors, and other critical cellular processes...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29218069/down-syndrome-genetics-and-cardiogenetics
#20
Vasilica Plaiasu
During the last years, Down syndrome has been the focus of special attention. Down syndrome is a genetic disorder characterized by distinct physical features and some degree of cognitive disability. Patients with Down syndrome also present many other congenital anomalies. The mapping for phenotypes to specific regions of chromosome 21 permits to identify which genes (or small regions) contribute to the phenotypic features of Down syndrome and thus, to understand its pathogenesis. Mainly there are three cytogenetic forms of Down syndrome: free trisomy 21, mosaic trisomy 21 and robertsonian translocation trisomy 21...
September 2017: Mædica
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