Journal article
FSHD type 2 and Bosma arhinia microphthalmia syndrome: Two faces of the same mutation
Neurology, Vol.91(6), pp.e562-E570
08/07/2018
DOI: 10.1212/WNL.0000000000005958
PMCID: PMC6105048
PMID: 29980640
Abstract
To determine whether congenital arhinia/Bosma arhinia microphthalmia syndrome (BAMS) and facioscapulohumeral muscular dystrophy type 2 (FSHD2), 2 seemingly unrelated disorders both caused by heterozygous pathogenic missense variants in the
gene, might represent different ends of a broad single phenotypic spectrum associated with SMCHD1 dysfunction.
We examined and/or interviewed 14 patients with FSHD2 and 4 unaffected family members with N-terminal
pathogenic missense variants to identify BAMS subphenotypes.
None of the patients with FSHD2 or family members demonstrated any congenital defects or dysmorphic features commonly found in patients with BAMS. One patient became anosmic after nasal surgery and one patient was hyposmic; one man was infertile (unknown cause) but reported normal pubertal development.
These data suggest that arhinia/BAMS and FSHD2 do not represent one phenotypic spectrum and that
pathogenic variants by themselves are insufficient to cause either of the 2 disorders. More likely, both arhinia/BAMS and FSHD2 are caused by complex oligogenic or multifactorial mechanisms that only partially overlap at the level of
Details
- Title: Subtitle
- FSHD type 2 and Bosma arhinia microphthalmia syndrome: Two faces of the same mutation
- Creators
- Karlien Mul - From the Department of Neurology (K.M., N.C.V., B.G.M.v.E., C.G.C.H.), Radboud University Medical Center, Nijmegen; Departments of Human Genetics (R.J.L.F.L., P.J.v.d.V., M.L.v.d.B., S.M.v.d.M.), Clinical Genetics (M.K.), and Neurology (U.A.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Pediatrics (J.M.G.), Cedars Sinai Medical Center, Los Angeles, CA; Department of Medical Genetics (A.E.L.), MassGeneral Hospital for Children, Boston, MA; Center for Genomic Medicine and Department of Neurology (H.B.), Massachusetts General Hospital, Boston; Department of Pathology (S.A.M.), University of Iowa Hospitals and Clinics, Iowa City; The John Walton Muscular Dystrophy Research Centre (K.J., T.E., A.T., V.S.), Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK; Neuromuscular Consult Unit (S.K.G.), Bilbo-Basurtu Erakunde Sanitario Integratua, Organización Sanitaria Integrada Bilbao-Basurto, Spain; Centre de Référence des Maladies Neuromusculaires (S.S.), Nice, France; Department of Neurology (R.T.), University of Rochester Medical Center, NY; Division of Human Biology (S.J.T.), Fred Hutchinson Cancer Research Center, Seattle, WA; and National Institute of Environmental Health Sciences (N.D.S.), Research Triangle Park, NC. karlien.mul@radboudumc.nlRichard J L F Lemmers - Leiden University Medical CenterMarjolein Kriek - From the Department of Neurology (K.M., N.C.V., B.G.M.v.E., C.G.C.H.), Radboud University Medical Center, Nijmegen; Departments of Human Genetics (R.J.L.F.L., P.J.v.d.V., M.L.v.d.B., S.M.v.d.M.), Clinical Genetics (M.K.), and Neurology (U.A.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Pediatrics (J.M.G.), Cedars Sinai Medical Center, Los Angeles, CA; Department of Medical Genetics (A.E.L.), MassGeneral Hospital for Children, Boston, MA; Center for Genomic Medicine and Department of Neurology (H.B.), Massachusetts General Hospital, Boston; Department of Pathology (S.A.M.), University of Iowa Hospitals and Clinics, Iowa City; The John Walton Muscular Dystrophy Research Centre (K.J., T.E., A.T., V.S.), Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK; Neuromuscular Consult Unit (S.K.G.), Bilbo-Basurtu Erakunde Sanitario Integratua, Organización Sanitaria Integrada Bilbao-Basurto, Spain; Centre de Référence des Maladies Neuromusculaires (S.S.), Nice, France; Department of Neurology (R.T.), University of Rochester Medical Center, NY; Division of Human Biology (S.J.T.), Fred Hutchinson Cancer Research Center, Seattle, WA; and National Institute of Environmental Health Sciences (N.D.S.), Research Triangle Park, NCPatrick J van der Vliet - From the Department of Neurology (K.M., N.C.V., B.G.M.v.E., C.G.C.H.), Radboud University Medical Center, Nijmegen; Departments of Human Genetics (R.J.L.F.L., P.J.v.d.V., M.L.v.d.B., S.M.v.d.M.), Clinical Genetics (M.K.), and Neurology (U.A.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Pediatrics (J.M.G.), Cedars Sinai Medical Center, Los Angeles, CA; Department of Medical Genetics (A.E.L.), MassGeneral Hospital for Children, Boston, MA; Center for Genomic Medicine and Department of Neurology (H.B.), Massachusetts General Hospital, Boston; Department of Pathology (S.A.M.), University of Iowa Hospitals and Clinics, Iowa City; The John Walton Muscular Dystrophy Research Centre (K.J., T.E., A.T., V.S.), Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK; Neuromuscular Consult Unit (S.K.G.), Bilbo-Basurtu Erakunde Sanitario Integratua, Organización Sanitaria Integrada Bilbao-Basurto, Spain; Centre de Référence des Maladies Neuromusculaires (S.S.), Nice, France; Department of Neurology (R.T.), University of Rochester Medical Center, NY; Division of Human Biology (S.J.T.), Fred Hutchinson Cancer Research Center, Seattle, WA; and National Institute of Environmental Health Sciences (N.D.S.), Research Triangle Park, NCMarlinde L van den Boogaard - From the Department of Neurology (K.M., N.C.V., B.G.M.v.E., C.G.C.H.), Radboud University Medical Center, Nijmegen; Departments of Human Genetics (R.J.L.F.L., P.J.v.d.V., M.L.v.d.B., S.M.v.d.M.), Clinical Genetics (M.K.), and Neurology (U.A.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Pediatrics (J.M.G.), Cedars Sinai Medical Center, Los Angeles, CA; Department of Medical Genetics (A.E.L.), MassGeneral Hospital for Children, Boston, MA; Center for Genomic Medicine and Department of Neurology (H.B.), Massachusetts General Hospital, Boston; Department of Pathology (S.A.M.), University of Iowa Hospitals and Clinics, Iowa City; The John Walton Muscular Dystrophy Research Centre (K.J., T.E., A.T., V.S.), Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK; Neuromuscular Consult Unit (S.K.G.), Bilbo-Basurtu Erakunde Sanitario Integratua, Organización Sanitaria Integrada Bilbao-Basurto, Spain; Centre de Référence des Maladies Neuromusculaires (S.S.), Nice, France; Department of Neurology (R.T.), University of Rochester Medical Center, NY; Division of Human Biology (S.J.T.), Fred Hutchinson Cancer Research Center, Seattle, WA; and National Institute of Environmental Health Sciences (N.D.S.), Research Triangle Park, NCUmesh A Badrising - From the Department of Neurology (K.M., N.C.V., B.G.M.v.E., C.G.C.H.), Radboud University Medical Center, Nijmegen; Departments of Human Genetics (R.J.L.F.L., P.J.v.d.V., M.L.v.d.B., S.M.v.d.M.), Clinical Genetics (M.K.), and Neurology (U.A.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Pediatrics (J.M.G.), Cedars Sinai Medical Center, Los Angeles, CA; Department of Medical Genetics (A.E.L.), MassGeneral Hospital for Children, Boston, MA; Center for Genomic Medicine and Department of Neurology (H.B.), Massachusetts General Hospital, Boston; Department of Pathology (S.A.M.), University of Iowa Hospitals and Clinics, Iowa City; The John Walton Muscular Dystrophy Research Centre (K.J., T.E., A.T., V.S.), Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK; Neuromuscular Consult Unit (S.K.G.), Bilbo-Basurtu Erakunde Sanitario Integratua, Organización Sanitaria Integrada Bilbao-Basurto, Spain; Centre de Référence des Maladies Neuromusculaires (S.S.), Nice, France; Department of Neurology (R.T.), University of Rochester Medical Center, NY; Division of Human Biology (S.J.T.), Fred Hutchinson Cancer Research Center, Seattle, WA; and National Institute of Environmental Health Sciences (N.D.S.), Research Triangle Park, NCJohn M Graham JrAngela E Lin - University of ChicagoHarrison Brand - From the Department of Neurology (K.M., N.C.V., B.G.M.v.E., C.G.C.H.), Radboud University Medical Center, Nijmegen; Departments of Human Genetics (R.J.L.F.L., P.J.v.d.V., M.L.v.d.B., S.M.v.d.M.), Clinical Genetics (M.K.), and Neurology (U.A.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Pediatrics (J.M.G.), Cedars Sinai Medical Center, Los Angeles, CA; Department of Medical Genetics (A.E.L.), MassGeneral Hospital for Children, Boston, MA; Center for Genomic Medicine and Department of Neurology (H.B.), Massachusetts General Hospital, Boston; Department of Pathology (S.A.M.), University of Iowa Hospitals and Clinics, Iowa City; The John Walton Muscular Dystrophy Research Centre (K.J., T.E., A.T., V.S.), Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK; Neuromuscular Consult Unit (S.K.G.), Bilbo-Basurtu Erakunde Sanitario Integratua, Organización Sanitaria Integrada Bilbao-Basurto, Spain; Centre de Référence des Maladies Neuromusculaires (S.S.), Nice, France; Department of Neurology (R.T.), University of Rochester Medical Center, NY; Division of Human Biology (S.J.T.), Fred Hutchinson Cancer Research Center, Seattle, WA; and National Institute of Environmental Health Sciences (N.D.S.), Research Triangle Park, NCSteven A Moore - University of Iowa, PathologyKatherine Johnson - University of Iowa, University College CoursesTeresinha Evangelista - From the Department of Neurology (K.M., N.C.V., B.G.M.v.E., C.G.C.H.), Radboud University Medical Center, Nijmegen; Departments of Human Genetics (R.J.L.F.L., P.J.v.d.V., M.L.v.d.B., S.M.v.d.M.), Clinical Genetics (M.K.), and Neurology (U.A.B.), Leiden University Medical Center, Leiden, the Netherlands; Department of Pediatrics (J.M.G.), Cedars Sinai Medical Center, Los Angeles, CA; Department of Medical Genetics (A.E.L.), MassGeneral Hospital for Children, Boston, MA; Center for Genomic Medicine and Department of Neurology (H.B.), Massachusetts General Hospital, Boston; Department of Pathology (S.A.M.), University of Iowa Hospitals and Clinics, Iowa City; The John Walton Muscular Dystrophy Research Centre (K.J., T.E., A.T., V.S.), Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK; Neuromuscular Consult Unit (S.K.G.), Bilbo-Basurtu Erakunde Sanitario Integratua, Organización Sanitaria Integrada Bilbao-Basurto, Spain; Centre de Référence des Maladies Neuromusculaires (S.S.), Nice, France; Department of Neurology (R.T.), University of Rochester Medical Center, NY; Division of Human Biology (S.J.T.), Fred Hutchinson Cancer Research Center, Seattle, WA; and National Institute of Environmental Health Sciences (N.D.S.), Research Triangle Park, NCAna TöpfVolker StraubSolange Kapetanovic GarcíaSabrina SacconiRabi TawilStephen J TapscottNicol C VoermansCorinne G C HorlingsBaziel G M van EngelenNatalie D ShawSilvère M van der Maarel
- Resource Type
- Journal article
- Publication Details
- Neurology, Vol.91(6), pp.e562-E570
- DOI
- 10.1212/WNL.0000000000005958
- PMID
- 29980640
- PMCID
- PMC6105048
- ISSN
- 0028-3878
- eISSN
- 1526-632X
- Grant note
- R01 AR066248 / NIAMS NIH HHS U54 NS053672 / NINDS NIH HHS P01 NS069539 / NINDS NIH HHS P50 NS053672 / NINDS NIH HHS
- Language
- English
- Date published
- 08/07/2018
- Academic Unit
- Pathology
- Record Identifier
- 9984047765902771
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