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Glinton KE, Hurst ACE, Bowling KM, Cristian I, Haynes D, Adstamongkonkul D, Schnappauf O, Beck DB, Brewer C, Parikh AS, Shinde DN, Donaldson A, Brautbar A, Koene S, van Haeringen A, Piton A, Capri Y, Furlan M, Gardella E, Møller RS, van de Beek I, Zuurbier L, Lakeman P, Bayat A, Martinez J, Signer R, Torring PM, Engelund MB, Gripp KW, Amlie-Wolf L, Henderson LB, Midro AT, Tarasów E, Stasiewicz-Jarocka B, Moskal-Jasinska D, Vos P, Boschann F, Stoltenburg C, Puk O, Mero IL, Lossius K, Mignot C, Keren B, Acosta Guio JC, Briceño I, Gomez A, Yang Y, Stankiewicz P. Phenotypic expansion of the BPTF-related neurodevelopmental disorder with dysmorphic facies and distal limb anomalies. Am J Med Genet A 2021; 185:1366-1378. [PMID: 33522091 PMCID: PMC8048530 DOI: 10.1002/ajmg.a.62102] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/06/2021] [Accepted: 01/12/2021] [Indexed: 12/14/2022]
Abstract
Neurodevelopmental disorder with dysmorphic facies and distal limb anomalies (NEDDFL), defined primarily by developmental delay/intellectual disability, speech delay, postnatal microcephaly, and dysmorphic features, is a syndrome resulting from heterozygous variants in the dosage‐sensitive bromodomain PHD finger chromatin remodeler transcription factor BPTF gene. To date, only 11 individuals with NEDDFL due to de novo BPTF variants have been described. To expand the NEDDFL phenotypic spectrum, we describe the clinical features in 25 novel individuals with 20 distinct, clinically relevant variants in BPTF, including four individuals with inherited changes in BPTF. In addition to the previously described features, individuals in this cohort exhibited mild brain abnormalities, seizures, scoliosis, and a variety of ophthalmologic complications. These results further support the broad and multi‐faceted complications due to haploinsufficiency of BPTF.
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Affiliation(s)
- Kevin E Glinton
- Department of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, USA
| | - Anna C E Hurst
- Department of Genetics, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Kevin M Bowling
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama, USA
| | - Ingrid Cristian
- Division of Genetics, Arnold Palmer Hospital for Children - Orlando Health, Orlando, Florida, USA
| | - Devon Haynes
- Division of Genetics, Arnold Palmer Hospital for Children - Orlando Health, Orlando, Florida, USA
| | - Dusit Adstamongkonkul
- CoxHealth, CoxHealth Pediatric Specialties, Springfield, Missouri, USA.,University of Missouri School of Medicine, Springfield Clinical Campus, Springfield, Missouri, USA
| | - Oskar Schnappauf
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - David B Beck
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Carole Brewer
- Peninsula Clinical Genetics Service, Royal Devon and Exeter NHS Foundation Trust, Exeter, United Kingdom
| | - Aditi Shah Parikh
- Center for Human Genetics, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, Ohio, USA
| | - Deepali N Shinde
- Department of Clinical Genomics, Ambry Genetics, Aliso Viejo, California, USA
| | - Alan Donaldson
- Clinical Genetics, University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
| | - Ariel Brautbar
- Medical Genetics Department, Cook Children's Hospital, Fort Worth, Texas, USA
| | - Saskia Koene
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Arie van Haeringen
- Department of Clinical Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | - Amélie Piton
- Unité de Génétique Moléculaire Strasbourg University Hospital, 1 place de l'Hôpital, Strasbourg Cedex, France
| | - Yline Capri
- Service de Génétique Clinique, CHU Robert Debré, Paris Cedex, France
| | | | - Elena Gardella
- Danish Epilepsy Centre, Dianalund, Denmark.,University of Southern Denmark, Odense, Denmark
| | | | - Irma van de Beek
- Amsterdam UMC, University of Amsterdam, Department of Clinical Genetics, Amsterdam, the Netherlands
| | - Linda Zuurbier
- Amsterdam UMC, University of Amsterdam, Department of Clinical Genetics, Amsterdam, the Netherlands
| | - Phillis Lakeman
- Amsterdam UMC, University of Amsterdam, Department of Clinical Genetics, Amsterdam, the Netherlands
| | - Allan Bayat
- Danish Epilepsy Centre, Dianalund, Denmark.,University of Southern Denmark, Odense, Denmark.,Department of Pediatrics, University Hospital of Hvidovre, Copenhagen, Denmark
| | - Julian Martinez
- Departments of Human Genetics, Pediatrics and Psychiatry, David Geffen School of Medicine at UCLA, California, Los Angeles, USA
| | - Rebecca Signer
- Departments of Human Genetics, Pediatrics and Psychiatry, David Geffen School of Medicine at UCLA, California, Los Angeles, USA
| | - Pernille M Torring
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
| | | | - Karen W Gripp
- Division of Medical Genetics, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware, USA
| | - Louise Amlie-Wolf
- Division of Medical Genetics, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Delaware, USA
| | | | - Alina T Midro
- Department of Clinical Genetics, Medical University, Białystok, 15-089, Białystok, Poland
| | | | | | - Diana Moskal-Jasinska
- Department of Clinical Phonoaudiology and Speech Therapy, Medical University, Białystok, Białystok, Poland
| | - Paul Vos
- Department of Pediatrics, Haga Teaching Hospital, Juliana Children's Hospital, The Hague, The Netherlands
| | - Felix Boschann
- Institut für Medizinische Genetik und Humangenetik, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Corinna Stoltenburg
- Department of Neuropaediatrics, Charité - Berlin University of Medicine, Berlin, Germany
| | - Oliver Puk
- Praxis für Humangenetik Tuebingen, Department of Genetic Diagnostics, Tuebingen, Germany
| | - Inger-Lise Mero
- Department of Medical Genetics, Oslo University Hospital, Norway
| | - Kristine Lossius
- Department of Pediatric and Adolescent Medicine, Akershus University Hospital, Norway
| | - Cyril Mignot
- APHP-Sorbonne Université, Département de Génétique, Hôpital Trousseau et Groupe Hospitalier Pitié-Salpêtrière, Paris, France
| | - Boris Keren
- Department of Genetics, APHP, Pitié-Salpêtrière University Hospital, Paris, France
| | - Johanna C Acosta Guio
- Especialista en Genética Médica, Instituto de Ortopedia Infantil Roosevelt, Bogotá, Cundinamarca, Colombia
| | - Ignacio Briceño
- Instituto de Genética Humana, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, DC, Colombia
| | - Alberto Gomez
- Instituto de Genética Humana, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, DC, Colombia
| | - Yaping Yang
- Department of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, USA.,AiLife Diagnostics, Country Place Pkwy Suite 100, Pearland, Texas, USA
| | - Pawel Stankiewicz
- Department of Molecular & Human Genetics, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, USA
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Lossius K, de Saint Martin A, Myren-Svelstad S, Bjørnvold M, Minken G, Seegmuller C, Valenti Hirsch MP, Chelly J, Steinlein O, Picard F, Brodtkorb E. Remarkable effect of transdermal nicotine in children with CHRNA4-related autosomal dominant sleep-related hypermotor epilepsy. Epilepsy Behav 2020; 105:106944. [PMID: 32097883 DOI: 10.1016/j.yebeh.2020.106944] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 01/22/2020] [Accepted: 01/22/2020] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Autosomal dominant sleep-related hypermotor epilepsy (ADSHE) is characterized by hypermotor seizures and may be caused by gain-of-function mutations affecting the nicotinic acetylcholine receptor (nAChR). Benefit from nicotine consumption has been reported in adult patients with this disorder. For the first time, the effect of transdermal nicotine is evaluated in children. METHODS Transdermal nicotine was applied to three boys, two aged 10 years (7 mg/24 h) and one six years (3.5 mg/24 h). Autosomal dominant sleep-related hypermotor epilepsy was caused by the p.S280F-CHRNA4 (cholinergic receptor, nicotinic, alpha polypeptide 4) mutation. The children suffered from frequent, persistent nocturnal seizures and had developed educational and psychosocial problems. Seizure frequency and cognitive and behavioral parameters were assessed before and after treatment. RESULTS A striking seizure reduction was reported soon after treatment onset. Hypermotor seizures disappeared; only sporadic arousals, sometimes with minor motor elements, were observed. Psychometric testing documented improvement in cognitive domains such as visuospatial ability, processing speed, memory, and some areas of executive functions. SIGNIFICANCE Nicotine appears to be a mechanistic treatment for this specific disorder, probably because of desensitization of the mutated receptors. It may control seizures resistant to conventional drugs for epilepsy and impact socioeducational function in children. This mode of precision therapy should receive more attention and should be available to more patients with uncontrolled CHRNA4-related ADSHE across the age span.
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Affiliation(s)
- Kristine Lossius
- National Centre for Epilepsy, Division for Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Anne de Saint Martin
- Pediatric Neurology, Reference Center for Rare Epilepsies, Strasbourg University Hospital, France
| | - Sverre Myren-Svelstad
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway; Kavli Institute for Systems Neuroscience and Centre for Neural Computation, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway; Department of Neurology and Clinical Neurophysiology, St. Olav University Hospital, Trondheim, Norway.
| | - Marit Bjørnvold
- National Centre for Epilepsy, Division for Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Guro Minken
- National Centre for Epilepsy, Division for Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Caroline Seegmuller
- Pediatric Neurology, Reference Center for Rare Epilepsies, Strasbourg University Hospital, France; Neurology Department, Reference Center for Rare Epilepsies, Strasbourg University Hospital, France
| | | | - Jamel Chelly
- Genetic Department, Strasbourg University, Hospital, IGBMC, INSERM, CNRS, Strasbourg University, France
| | - Ortrud Steinlein
- Institute of Human Genetics, University Hospital, Ludwig Maximillian University of Munich, Munich, Germany
| | - Fabienne Picard
- EEG and Epilepsy Unit, Department of Neurology, University Hospitals and Medical School of Geneva, Geneva, Switzerland
| | - Eylert Brodtkorb
- Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway; Department of Neurology and Clinical Neurophysiology, St. Olav University Hospital, Trondheim, Norway
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