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https://www.readbyqxmd.com/read/28817240/prenatal-presentation-of-mabry-syndrome-with-congenital-diaphragmatic-hernia-and-phenotypic-overlap-with-fryns-syndrome
#1
Kara K Reynolds, Jane Juusola, Gregory M Rice, Philip F Giampietro
We report on a family in which initial features were compatible with Fryns syndrome. The first sibling was a stillborn female with a left diaphragmatic hernia (DH). Her clinical features overlapped with Fryns syndrome. The second pregnancy, a male fetus, was followed for polyhydramnios, hypoplastic mandible, mild enlargement of the fetal bladder, hydronephrosis, and rocker bottom foot deformities. He had facial features similar to his sibling and a large cleft of the secondary palate, small jaw, and secundum atrial septal defect...
August 17, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28815944/neonatal-fractures-as-a-presenting-feature-of-lmod3-associated-congenital-myopathy
#2
Megan Abbott, Mahim Jain, Rachel Pferdehirt, Yuqing Chen, Alyssa Tran, Mehmet B Duz, Mehmet Seven, Richard A Gibbs, Donna Muzny, Brendan Lee, Ronit Marom, Lindsay C Burrage
Nemaline myopathy is a rare inherited disorder characterized by weakness, hypotonia, and depressed deep tendon reflexes. It is clinically and genetically heterogeneous, with the most severe phenotype presenting as perinatal akinesia, severe muscle weakness, feeding difficulties and respiratory failure, leading to early mortality. Pathogenic variants in 12 genes, encoding components of the sarcomere or factors related to myogenesis, have been reported in patients affected with the disorder. Here, we describe an early, lethal presentation of decreased fetal movements, hypotonia, muscle weakness, and neonatal respiratory failure requiring ventilator support in three siblings from a consanguineous family...
August 16, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28815891/cystic-kidneys-in-fetal-walker-warburg-syndrome-with-pomt2-mutation-intrafamilial-phenotypic-variability-in-four-siblings-and-review-of-literature
#3
Marwa M Nabhan, Nour ElKhateeb, Daniela A Braun, Sungho Eun, Sahar N Saleem, Heon YungGee, Friedhelm Hildebrandt, Neveen A Soliman
Walker-Warburg syndrome (WWS) is a severe form of congenital muscular dystrophy secondary to α-dystroglycanopathy with muscle, brain, and eye abnormalities often leading to death in the first weeks of life. It is transmitted in an autosomal recessive pattern, and has been linked to at least 15 different genes; including protein O-mannosyltransferase 1 (POMT1), protein O-mannosyltransferase 2 (POMT2), protein O-mannose beta-1,2-N acetylglucosaminyltransferase (POMGNT1), fukutin (FKTN), isoprenoid synthase domain-containing protein (ISPD), and other genes...
August 17, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28802248/utility-of-rapid-whole-exome-sequencing-in-the-diagnosis-of-neonatal-niemann-pick-disease-type-c-presenting-with-fetal-hydrops-and-liver-failure
#4
Mersedeh Rohanizadegan, Sarah El-Almery, Anne O'Donnell-Luria, Ivana Mihalek, Peggy Chen, Marilyn Sanders, Kristen Leeman, Megan Cho, Christina Hung, Olaf Bodamer
Rapid whole exome sequencing (rWES) is increasingly used in critically ill newborn infants to inform about diagnosis, clinical management and prognosis. Here we report a male newborn infant with hydrops, pancytopenia and acute liver failure who was listed for liver transplantation. Given the acuity of the presentation, the procedure related morbidity and mortality and lack of diagnosis we employed rWES in the proband and both parents with a turn-around time of 10 business days. rWES returned one maternally inherited, likely pathogenic and one paternally inherited, likely pathogenic variant in NPC1 suggestive of a diagnosis of Niemann Pick disease type C (NPC)...
August 11, 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28796236/genetic-disruption-of-the-oncogenic-hmga2-plag1-igf2-pathway-causes-fetal-growth-restriction
#5
Walid Abi Habib, Frédéric Brioude, Thomas Edouard, James T Bennett, Anne Lienhardt-Roussie, Frédérique Tixier, Jennifer Salem, Tony Yuen, Salah Azzi, Yves Le Bouc, Madeleine D Harbison, Irène Netchine
PurposeFetal growth is a complex process involving maternal, placental and fetal factors. The etiology of fetal growth retardation remains unknown in many cases. The aim of this study is to identify novel human mutations and genes related to Silver-Russell syndrome (SRS), a syndromic form of fetal growth retardation, usually caused by epigenetic downregulation of the potent fetal growth factor IGF2.MethodsWhole-exome sequencing was carried out on members of an SRS familial case. The candidate gene from the familial case and two other genes were screened by targeted high-throughput sequencing in a large cohort of suspected SRS patients...
August 10, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28749478/molecular-autopsy-in-maternal-fetal-medicine
#6
Hanan E Shamseldin, Wesam Kurdi, Fatima Almusafri, Maha Alnemer, Alya Alkaff, Zeneb Babay, Amal Alhashem, Maha Tulbah, Nada Alsahan, Rubina Khan, Bahauddin Sallout, Elham Al Mardawi, Mohamed Zain Seidahmed, Niema Meriki, Yasser Alsaber, Alya Qari, Ola Khalifa, Wafaa Eyaid, Zuhair Rahbeeni, Ahmed Kurdi, Mais Hashem, Tarfa Alshidi, Eman Al-Obeid, Firdous Abdulwahab, Niema Ibrahim, Nour Ewida, Karen El-Akouri, Mariam Al Mulla, Tawfeg Ben-Omran, Matthias Pergande, Sebahattin Cirak, Saeed Al Tala, Ranad Shaheen, Eissa Faqeih, Fowzan S Alkuraya
PurposeThe application of genomic sequencing to investigate unexplained death during early human development, a form of lethality likely enriched for severe Mendelian disorders, has been limited.MethodsIn this study, we employed exome sequencing as a molecular autopsy tool in a cohort of 44 families with at least one death or lethal fetal malformation at any stage of in utero development. Where no DNA was available from the fetus, we performed molecular autopsy by proxy, i.e., through parental testing.ResultsPathogenic or likely pathogenic variants were identified in 22 families (50%), and variants of unknown significance were identified in further 15 families (34%)...
July 27, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28729373/the-importance-of-managing-the-patient-and-not-the-gene-expanded-phenotype-of-gle1-associated-arthrogryposis
#7
Queenie K-G Tan, Allyn McConkie-Rosell, Jane Juusola, Kathryn E Gustafson, Carolyn E Pizoli, Anne F Buckley, Yong-Hui Jiang
GLE1 encodes a protein important for mRNA export and appears to play roles in translation initiation and termination as well. Pathogenic variants in GLE1 mutations have been associated with lethal contracture syndrome (LCCS1) and Lethal Arthrogryposis with Anterior Horn Cell Disease (LAAHD); phenotypes reported in individuals include fetal akinesia and a severe form of motor neuron disease, typically presenting with prenatal symptoms and perinatal lethality. In this paper, we identified bi-allelic missense mutations in GLE1 by trio whole exome sequencing (WES) in an individual affected with congenital motor weakness and contractures as well as feeding and respiratory difficulties...
July 20, 2017: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/28727969/fetal-dysmorphology-still-an-essential-art-analysis-of-the-limitations-of-microarray-in-a-fetal-population-and-a-look-toward-the-genome-sequencing-era
#8
E Fletcher, M Porteous, K J McKenzie, E J Maher, M J Evans
Cytogenomic microarray allows assessment of the genome at higher resolutions than traditional karyotyping. The objective of this study is to evaluate the utility of microarray in a routine fetal autopsy setting before the advent of routine fetal exome/genome sequencing and the issues these technologies may generate. A systematic review of fetal postmortems at 12-24 weeks gestation between January 2011 and December 2014 was undertaken. Cases where there was no consent for audit, research, or genetic testing were excluded as were cases referred to the Procurator Fiscal, stillbirths, and neonatal deaths...
July 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28686858/a-pentanucleotide-atttc-repeat-insertion-in-the-non-coding-region-of-dab1-mapping-to-sca37-causes-spinocerebellar-ataxia
#9
Ana I Seixas, Joana R Loureiro, Cristina Costa, Andrés Ordóñez-Ugalde, Hugo Marcelino, Cláudia L Oliveira, José L Loureiro, Ashutosh Dhingra, Eva Brandão, Vitor T Cruz, Angela Timóteo, Beatriz Quintáns, Guy A Rouleau, Patrizia Rizzu, Ángel Carracedo, José Bessa, Peter Heutink, Jorge Sequeiros, Maria J Sobrido, Paula Coutinho, Isabel Silveira
Advances in human genetics in recent years have largely been driven by next-generation sequencing (NGS); however, the discovery of disease-related gene mutations has been biased toward the exome because the large and very repetitive regions that characterize the non-coding genome remain difficult to reach by that technology. For autosomal-dominant spinocerebellar ataxias (SCAs), 28 genes have been identified, but only five SCAs originate from non-coding mutations. Over half of SCA-affected families, however, remain without a genetic diagnosis...
July 6, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28686357/homozygous-null-variant-in-cradd-encoding-an-adaptor-protein-that-mediates-apoptosis-is-associated-with-lissencephaly
#10
Tamar Harel, Nuphar Hacohen, Avraham Shaag, Moshe Gomori, Amihood Singer, Orly Elpeleg, Vardiella Meiner
Lissencephaly is a severe malformation of cortical development, most often attributed to abnormalities in neuronal migration. It is associated with a severe prognosis including developmental delay, intellectual disability, and seizures. Lissencephaly can be reliably diagnosed during late gestation by neurosonography or fetal magnetic resonance imaging (MRI). We report two sibling male fetuses who were diagnosed with delayed cortical sulcation highly suggestive of lissencephaly during late pregnancy. After receiving genetic counseling, the parents elected to terminate the pregnancies based on the neuroradiological findings and the associated severe prognosis...
July 7, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28683731/nephron-development-and-extrarenal-features-in-a-child-with-congenital-nephrotic-syndrome-caused-by-null-lamb2-mutations
#11
Jiro Kino, Hiroyasu Tsukaguchi, Takahisa Kimata, Huan Thanh Nguyen, Yorika Nakano, Noriko Miyake, Naomichi Matsumoto, Kazunari Kaneko
BACKGROUND: Congenital nephrotic syndrome (CNS) is a rare disorder caused by various structural and developmental defects of glomeruli. It occurs typically as an isolated kidney disorder but associates sometimes with other systemic, extrarenal manifestations. CASE PRESENTATIONS: An infant presented with severe CNS, which progressed rapidly to renal failure at age of 3 months and death at 27 months. The clinical phenotypes and genetic causes were studied, including the renal pathology at autopsy...
July 6, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28654730/promises-pitfalls-and-practicalities-of-prenatal-whole-exome-sequencing
#12
Sunayna Best, Karen Wou, Neeta Vora, Ignatia B Van der Veyver, Ronald Wapner, Lyn S Chitty
Prenatal genetic diagnosis provides information for pregnancy and perinatal decision-making and management. In several small series, prenatal whole exome sequencing (WES) approaches have identified genetic diagnoses when conventional tests (karyotype and microarray) were not diagnostic. Here, we review published prenatal WES studies and recent conference abstracts. Thirty-one studies were identified, with diagnostic rates in series of five or more fetuses varying between 6.2% and 80%. Differences in inclusion criteria and trio versus singleton approaches to sequencing largely account for the wide range of diagnostic rates...
June 27, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28620870/severe-growth-deficiency-microcephaly-intellectual-disability-and-characteristic-facial-features-are-due-to-a-homozygous-qars-mutation
#13
Esther Leshinsky-Silver, Jiqiang Ling, Jiang Wu, Chana Vinkler, Keren Yosovich, Sarit Bahar, Miri Yanoov-Sharav, Tally Lerman-Sagie, Dorit Lev
Glutaminyl tRNA synthase is highly expressed in the developing fetal human brain. Mutations in the glutaminyl-tRNA synthetase (QARS) gene have been reported in patients with progressive microcephaly, cerebral-cerebellar atrophy, and intractable seizures. We have previously reported a new recessive syndrome of severe linear growth retardation, poor weight gain, microcephaly, characteristic facial features, cutaneous syndactyly of the toes, high myopia, and intellectual disability in two sisters of Ashkenazi-Jewish origin (Eur J Med Genet 2014;57(6):288-92)...
July 2017: Neurogenetics
https://www.readbyqxmd.com/read/28589569/identification-of-novel-bcl11a-variants-in-patients-with-epileptic-encephalopathy-expanding-the-phenotypic-spectrum
#14
Michiko Yoshida, Mitsuko Nakashima, Tohru Okanishi, Sotaro Kanai, Ayataka Fujimoto, Kazuya Itomi, Masafumi Morimoto, Hirotomo Saitsu, Mitsuhiro Kato, Naomichi Matsumoto, Tomohiro Chiyonobu
BCL11A encodes a zinc finger protein that is highly expressed in hematopoietic tissues and the brain, and that is known to function as a transcriptional repressor of fetal hemoglobin (HbF). Recently, de novo variants in BCL11A have been reported in individuals with intellectual disability syndrome without epilepsy. In this study, we performed whole-exome sequencing of 302 patients with epileptic encephalopathies (EEs), and identified two novel BCL11A variants, c.577delC (p.His193Metfs*3) and c.2351A>C (p...
June 6, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28566479/targeted-exome-sequencing-identifies-pbx1-as-involved-in-monogenic-congenital-anomalies-of-the-kidney-and-urinary-tract
#15
Laurence Heidet, Vincent Morinière, Charline Henry, Lara De Tomasi, Madeline Louise Reilly, Camille Humbert, Olivier Alibeu, Cécile Fourrage, Christine Bole-Feysot, Patrick Nitschké, Frédéric Tores, Marc Bras, Marc Jeanpierre, Christine Pietrement, Dominique Gaillard, Marie Gonzales, Robert Novo, Elise Schaefer, Joëlle Roume, Jelena Martinovic, Valérie Malan, Rémi Salomon, Sophie Saunier, Corinne Antignac, Cécile Jeanpierre
Congenital anomalies of the kidney and urinary tract (CAKUT) occur in three to six of 1000 live births, represent about 20% of the prenatally detected anomalies, and constitute the main cause of CKD in children. These disorders are phenotypically and genetically heterogeneous. Monogenic causes of CAKUT in humans and mice have been identified. However, despite high-throughput sequencing studies, the cause of the disease remains unknown in most patients, and several studies support more complex inheritance and the role of environmental factors and/or epigenetics in the pathophysiology of CAKUT...
May 31, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28425981/whole-exome-sequencing-on-deceased-fetuses-with-ultrasound-anomalies-expanding-our-knowledge-of-genetic-disease-during-fetal-development
#16
Carin L Yates, Kristin G Monaghan, Deborah Copenheaver, Kyle Retterer, Julie Scuffins, Cathlin R Kucera, Bethany Friedman, Gabriele Richard, Jane Juusola
PurposeThe aim of this study was to determine the diagnostic yield of whole-exome sequencing (WES) in fetuses with ultrasound anomalies that resulted in fetal demise or pregnancy termination. The results were also utilized to aid in the identification of candidate genes for fetal development and to expand the clinical phenotype of known genetic conditions.MethodsWES was performed on specimens from 84 deceased fetuses. Data were analyzed and final results were classified into one of four categories: positive, possible, negative, and candidate gene only...
April 20, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28403691/novel-nlrc4-mutation-causes-a-syndrome-of-perinatal-autoinflammation-with-hemophagocytic-lymphohistiocytosis-hepatosplenomegaly-fetal-thrombotic-vasculopathy-and-congenital-anemia-and-ascites
#17
Jiancong Liang, Danielle N Alfano, James E Squires, Melissa M Riley, W Tony Parks, Julia Kofler, Areeg El-Gharbawy, Suneeta Madan-Kheterpal, Roxanne Acquaro, Jennifer Picarsic
Autoinflammatory diseases are caused by pathologic activation of the innate immune system. Primary hemophagocytic lymphohistiocytosis (HLH) is an aggressive syndrome of excessive immune activation caused by monogenic mutations resulting in cytotoxic cell defects and subsequent failure to eliminate activated macrophages. Secondary HLH is often diagnosed in cases without a known Mendelian inheritance. However, some cases of "secondary" HLH have been shown to harbor mutations with partial dysfunction of the cytotoxic system...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28387813/whole-exome-sequencing-for-prenatal-diagnosis-of-fetuses-with-congenital-anomalies-of-the-kidney-and-urinary-tract
#18
Ting-Ying Lei, Fang Fu, Ru Li, Dan Wang, Rong-Yue Wang, Xiang-Yi Jing, Qiong Deng, Zhou-Zhou Li, Ze-Qun Liu, Xin Yang, Dong-Zhi Li, Can Liao
Background.: In the absence of cytogenetic abnormality, fetuses with congenital anomalies of the kidney and urinary tract (CAKUT) with/without other structural anomalies show a higher likelihood of monogenic causes; however, defining the underlying pathology can be challenging. Here, we investigate the value of whole-exome sequencing (WES) in fetuses with CAKUT but normal findings upon karyotyping and chromosome microarray analysis. Methods.: WES was performed on DNA from the cord blood of 30 fetuses with unexplained CAKUT with/without other structural anomalies...
April 6, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28379579/discovery-of-novel-heart-rate-associated-loci-using-the-exome-chip
#19
Marten E van den Berg, Helen R Warren, Claudia P Cabrera, Niek Verweij, Borbala Mifsud, Jeffrey Haessler, Nathan A Bihlmeyer, Yi-Ping Fu, Stefan Weiss, Henry J Lin, Niels Grarup, Ruifang Li-Gao, Giorgio Pistis, Nabi Shah, Jennifer A Brody, Martina Müller-Nurasyid, Honghuang Lin, Hao Mei, Albert V Smith, Leo-Pekka Lyytikäinen, Leanne M Hall, Jessica van Setten, Stella Trompet, Bram P Prins, Aaron Isaacs, Farid Radmanesh, Jonathan Marten, Aiman Entwistle, Jan A Kors, Claudia T Silva, Alvaro Alonso, Joshua C Bis, Rudolf de Boer, Hugoline G de Haan, Renée de Mutsert, George Dedoussis, Anna F Dominiczak, Alex S F Doney, Patrick T Ellinor, Ruben N Eppinga, Stephan B Felix, Xiuqing Guo, Yanick Hagemeijer, Torben Hansen, Tamara B Harris, Susan R Heckbert, Paul L Huang, Shih-Jen Hwang, Mika Kähönen, Jørgen K Kanters, Ivana Kolcic, Lenore J Launer, Man Li, Jie Yao, Allan Linneberg, Simin Liu, Peter W Macfarlane, Massimo Mangino, Andrew D Morris, Antonella Mulas, Alison D Murray, Christopher P Nelson, Marco Orrú, Sandosh Padmanabhan, Annette Peters, David J Porteous, Neil Poulter, Bruce M Psaty, Lihong Qi, Olli T Raitakari, Fernando Rivadeneira, Carolina Roselli, Igor Rudan, Naveed Sattar, Peter Sever, Moritz F Sinner, Elsayed Z Soliman, Timothy D Spector, Alice V Stanton, Kathleen E Stirrups, Kent D Taylor, Martin D Tobin, André Uitterlinden, Ilonca Vaartjes, Arno W Hoes, Peter van der Meer, Uwe Völker, Melanie Waldenberger, Zhijun Xie, Magdalena Zoledziewska, Andrew Tinker, Ozren Polasek, Jonathan Rosand, Yalda Jamshidi, Cornelia M van Duijn, Eleftheria Zeggini, J Wouter Jukema, Folkert W Asselbergs, Nilesh J Samani, Terho Lehtimäki, Vilmundur Gudnason, James Wilson, Steven A Lubitz, Stefan Kääb, Nona Sotoodehnia, Mark J Caulfield, Colin N A Palmer, Serena Sanna, Dennis O Mook-Kanamori, Panos Deloukas, Oluf Pedersen, Jerome I Rotter, Marcus Dörr, Chris J O'Donnell, Caroline Hayward, Dan E Arking, Charles Kooperberg, Pim van der Harst, Mark Eijgelsheim, Bruno H Stricker, Patricia B Munroe
Resting heart rate is a heritable trait, and an increase in heart rate is associated with increased mortality risk. Genome-wide association study analyses have found loci associated with resting heart rate, at the time of our study these loci explained 0.9% of the variation. This study aims to discover new genetic loci associated with heart rate from Exome Chip meta-analyses.Heart rate was measured from either elecrtrocardiograms or pulse recordings. We meta-analysed heart rate association results from 104 452 European-ancestry individuals from 30 cohorts, genotyped using the Exome Chip...
June 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28346524/rare-mutations-and-potentially-damaging-missense-variants-in-genes-encoding-fibrillar-collagens-and-proteins-involved-in-their-production-are-candidates-for-risk-for-preterm-premature-rupture-of-membranes
#20
Bhavi P Modi, Maria E Teves, Laurel N Pearson, Hardik I Parikh, Piya Chaemsaithong, Nihar U Sheth, Timothy P York, Roberto Romero, Jerome F Strauss
Preterm premature rupture of membranes (PPROM) is the leading identifiable cause of preterm birth with ~ 40% of preterm births being associated with PPROM and occurs in 1% - 2% of all pregnancies. We hypothesized that multiple rare variants in fetal genes involved in extracellular matrix synthesis would associate with PPROM, based on the assumption that impaired elaboration of matrix proteins would reduce fetal membrane tensile strength, predisposing to unscheduled rupture. We performed whole exome sequencing (WES) on neonatal DNA derived from pregnancies complicated by PPROM (49 cases) and healthy term deliveries (20 controls) to identify candidate mutations/variants...
2017: PloS One
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