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Tabuena MD, Morigaki R, Miyamoto R, Mure H, Yamamoto N, Miyake K, Matsuda T, Izumi Y, Takagi Y, Tabuena RP, Kawarai T. Ataxia with vitamin E deficiency in the Philippines : A case report of two siblings. J Med Invest 2021; 68:400-403. [PMID: 34759169 DOI: 10.2152/jmi.68.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Here we report two siblings with ataxia and peripheral neuropathy. One patient showed head tremors. Genetic analysis revealed a mutation in the hepatic α-tocopherol transfer protein (α-TTP) gene (TTPA) on chromosome 8q13. They were diagnosed with ataxia with vitamin E deficiency which is firstly reported in the Philippines. As the symptoms of ataxia with vitamin E deficiency can be alleviated with lifelong vitamin E administration, differential diagnosis from similar syndromes is important. In addition, ataxia with vitamin E deficiency causes movement disorders. Therefore, a common hereditary disease in the Philippines, X-linked dystonia-parkinsonism, could be another differential diagnosis. The Philippines is an archipelago comprising 7,107 islands, and the prevalence of rare hereditary diseases among the populations of small islands is still unclear. For neurologists, establishing a system of genetic diagnosis and counseling in rural areas remains challenging. These unresolved problems should be addressed in the near future. J. Med. Invest. 68 : 400-403, August, 2021.
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Affiliation(s)
- Ma Daisy Tabuena
- Outpatient Neurology Clinic, Asclepius Drugstore, Med Lab and Allied Services Corp., Iloilo City, Philippines
| | - Ryoma Morigaki
- Department of Advanced Brain Research, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan.,Department of Neurosurgery, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan
| | - Ryosuke Miyamoto
- Department of Neurology, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan
| | - Hideo Mure
- Department of Neurosurgery, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan.,Neuromodulation Center, Kurashiki Heisei Hospital, Okayama, Japan
| | - Nobuaki Yamamoto
- Department of Advanced Brain Research, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan.,Department of Neurology, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan
| | - Kazuhisa Miyake
- Department of Neurosurgery, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan
| | - Taku Matsuda
- Department of Neurosurgery, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan
| | - Yuishin Izumi
- Department of Neurology, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan
| | - Yasushi Takagi
- Department of Advanced Brain Research, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan.,Department of Neurosurgery, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan
| | - Rollin P Tabuena
- Outpatient Pulmonary Clinic, Asclepius Drugstore, Med Lab and Allied Services Corp., Iloilo City, Philippines
| | - Toshitaka Kawarai
- Department of Neurology, Institute of Biomedical Sciences, Graduate School of Medicine, Tokushima University, Tokushima, Japan
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Hoshino K, Sweadner KJ, Kawarai T, Saute JA, Freitas J, Damásio J, Donis KC, Kimura K, Fukuda H, Hayashi M, Higuchi T, Ikeda Y, Ozelius LJ, Kaji R. Rapid-Onset Dystonia-Parkinsonism Phenotype Consistency for a Novel Variant of ATP1A3 in Patients Across 3 Global Populations. Neurol Genet 2021; 7:e562. [PMID: 33977143 PMCID: PMC8105889 DOI: 10.1212/nxg.0000000000000562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/24/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Kyoko Hoshino
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Kathleen J Sweadner
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Toshitaka Kawarai
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Jonas Alex Saute
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Joel Freitas
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Joana Damásio
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Karina C Donis
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Kazue Kimura
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Hideki Fukuda
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Masaharu Hayashi
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Tetsuya Higuchi
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Yoshio Ikeda
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Laurie J Ozelius
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
| | - Ryuji Kaji
- Segawa Memorial Neurological Clinic for Children (K.H., K.K., H.F., M.H.), Tokyo, Japan; Department of Neurosurgery (K.J.S.), Massachusetts General Hospital and Harvard Medical School, Boston; Department of Clinical Neuroscience (T.K., R.K.), Institute of Biomedical Sciences, Tokushima University, Japan; Medical Genetics Division (J.A.S., K.C.D.) and Neurology Division (J.A.S.), Hospital de Clínicas de Porto Alegre (HCPA); Graduate Program in Medicine: Medical Sciences and Internal Medicine Department (J.A.S.), Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Neurophysiology Division (J.F., J.D.), Hospital de Santo António, Centro Hospitalar Universitário do Porto; UniGene (J.F., J.D.), Instituto de Biologia Molecular e Celular, i3s Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Department of Diagnostic Radiology and Nuclear Medicine (T.H.), Gunma University Graduate School of Medicine, Japan; Department of Neurology (Y.I.), Gunma University Graduate School of Medicine, Japan; and Department of Neurology (L.J.O.), Massachusetts General Hospital, Charlestown
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Rumore R, Montecchiani C, Gaudiello F, Miele M, Kawarai T, Orlacchio A. Clinico‐genetic study of two Japanese pedigrees with hereditary spastic paraparesis and Alzheimer's disease. Alzheimers Dement 2020. [DOI: 10.1002/alz.043932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Miyamoto R, Kawarai T, Takeuchi T, Izumi Y, Goto S, Kaji R. Efficacy of Istradefylline for the Treatment of ADCY5-Related Disease. Mov Disord Clin Pract 2020; 7:852-853. [PMID: 33043083 DOI: 10.1002/mdc3.13067] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/29/2020] [Accepted: 08/03/2020] [Indexed: 12/25/2022] Open
Abstract
View Supplementary Video 1 View Supplementary Video 2.
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Affiliation(s)
- Ryosuke Miyamoto
- Department of Neurology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Toshitaka Kawarai
- Department of Neurology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Toshiaki Takeuchi
- Department of Neurology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan.,Department of Rehabilitation National Hospital Organization Utano Hospital Kyoto Japan
| | - Yuishin Izumi
- Department of Neurology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Satoshi Goto
- Department of Neurodegenerative Disorders Research Tokushima University Graduate School of Biomedical Sciences Tokushima Japan
| | - Ryuji Kaji
- Department of Neurology Tokushima University Graduate School of Biomedical Sciences Tokushima Japan.,Department of Neurology National Hospital Organization Utano Hospital Kyoto Japan
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Wislet-Gendebien S, D'Souza C, Kawarai T, St George-Hyslop P, Westaway D, Fraser P, Tandon A. Withdrawal: Cytosolic proteins regulate α-synuclein dissociation from presynaptic membranes. J Biol Chem 2020; 295:13694. [DOI: 10.1074/jbc.w120.015777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Kawarai T, Yamazaki H, Yamakami K, Tsukamoto-Miyashiro A, Kodama M, Rumore R, Caltagirone C, Nishino I, Orlacchio A. A novel AIFM1 missense mutation in a Japanese patient with ataxic sensory neuronopathy and hearing impairment. J Neurol Sci 2019; 409:116584. [PMID: 31783324 DOI: 10.1016/j.jns.2019.116584] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/16/2019] [Accepted: 11/18/2019] [Indexed: 11/18/2022]
Affiliation(s)
- Toshitaka Kawarai
- Department of Clinical Neuroscience, Tokushima University Graduate School, Tokushima, Japan.
| | - Hiroki Yamazaki
- Department of Clinical Neuroscience, Tokushima University Graduate School, Tokushima, Japan
| | - Kei Yamakami
- Department of Clinical Neuroscience, Tokushima University Graduate School, Tokushima, Japan
| | - Ai Tsukamoto-Miyashiro
- Neurology Service, Tokushima National Hospital, National Hospital Organization, Tokushima, Japan
| | - Mizuki Kodama
- Faculty of Medicine-Student Laboratory, Tokushima University Graduate School, Tokushima, Japan
| | - Roberto Rumore
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Fondazione Santa Lucia, Rome, Italy
| | - Carlo Caltagirone
- Laboratorio di Neurologia Clinica e Comportamentale, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Ichizo Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC), Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Fondazione Santa Lucia, Rome, Italy; Dipartimento di Scienze Chirurgiche e Biomediche, Università di Perugia, Perugia, Italy
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Kawarai T, Orlacchio A, Kaji R. Lesser motor disability in adulthood: A ten-year follow-up of a dyskinetic patient with ADCY5 mutation. J Neurol Sci 2019; 405:116383. [DOI: 10.1016/j.jns.2019.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 06/13/2019] [Accepted: 07/08/2019] [Indexed: 11/26/2022]
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Fujita K, Matsubara T, Miyamoto R, Sumikura H, Takeuchi T, Maruyama Saladini K, Kawarai T, Nodera H, Udaka F, Kume K, Morino H, Kawakami H, Hasegawa M, Kaji R, Murayama S, Izumi Y. Co-morbidity of progressive supranuclear palsy and amyotrophic lateral sclerosis: a clinical-pathological case report. BMC Neurol 2019; 19:168. [PMID: 31319800 PMCID: PMC6637486 DOI: 10.1186/s12883-019-1402-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 05/17/2019] [Accepted: 07/12/2019] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND The coexistence of distinct neurodegenerative diseases in single cases has recently attracted greater attention. The phenotypic co-occurrence of progressive supranuclear palsy (PSP) and amyotrophic lateral sclerosis (ALS) has been documented in several cases. That said, the clinicopathological comorbidity of these two diseases has not been demonstrated. CASE PRESENTATION A 77-year-old man presented with gait disturbance for 2 years, consistent with PSP with progressive gait freezing. At 79 years old, he developed muscle weakness compatible with ALS. The disease duration was 5 years after the onset of PSP and 5 months after the onset of ALS. Neuropathological findings demonstrated the coexistence of PSP and ALS. Immunohistochemical examination confirmed 4-repeat tauopathy, including globose-type neurofibrillary tangles, tufted astrocytes, and oligodendroglial coiled bodies as well as TAR DNA-binding protein 43 kDa pathology in association with upper and lower motor neuron degeneration. Immunoblotting showed hyperphosphorylated full-length 4-repeat tau bands (64 and 68 kDa) and C-terminal fragments (33 kDa), supporting the diagnosis of PSP and excluding other parkinsonian disorders, such as corticobasal degeneration. Genetic studies showed no abnormalities in genes currently known to be related to ALS or PSP. CONCLUSIONS Our case demonstrates the clinicopathological comorbidity of PSP and ALS in a sporadic patient. The possibility of multiple proteinopathies should be considered when distinct symptoms develop during the disease course.
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Affiliation(s)
- Koji Fujita
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Tomoyasu Matsubara
- Department of Neurology and Neuropathology (the Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital & Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Ryosuke Miyamoto
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Hiroyuki Sumikura
- Department of Neurology and Neuropathology (the Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital & Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Toshiaki Takeuchi
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Keiko Maruyama Saladini
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.,Pressent address: PVO Japan, Patient Safety Japan, Regulatory Office Japan, Novartis Pharma K.K., 1-23-1 Toranomon, Minayo-ku, Tokyo, 105-6333, Japan
| | - Toshitaka Kawarai
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Hiroyuki Nodera
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Fukashi Udaka
- Department of Neurology, Sumitomo Hospital, 5-3-20 Nakanoshima, Kita-ku, Osaka, 530-0005, Japan
| | - Kodai Kume
- Department of Epidemiology, Research Institute for Radiation Biology and Medicine, Horoshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Hiroyuki Morino
- Department of Epidemiology, Research Institute for Radiation Biology and Medicine, Horoshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Hideshi Kawakami
- Department of Epidemiology, Research Institute for Radiation Biology and Medicine, Horoshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan
| | - Masato Hasegawa
- Department of Dementia and Higher Brain Function, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Ryuji Kaji
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan
| | - Shigeo Murayama
- Department of Neurology and Neuropathology (the Brain Bank for Aging Research), Tokyo Metropolitan Geriatric Hospital & Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo, 173-0015, Japan
| | - Yuishin Izumi
- Department of Neurology, Tokushima University Graduate School of Biomedical Sciences, 3-18-15 Kuramoto-cho, Tokushima, 770-8503, Japan.
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Rumore R, Montecchiani C, Gaudiello F, Miele M, Pedroso JL, Barsottini OG, Caltagirone C, Kawarai T, Orlacchio A. P3-145: HEREDITARY SPASTIC PARAPLEGIA AND ALZHEIMER'S DISEASE: CLINICAL AND GENETIC STUDY OF A BRAZILIAN FAMILY. Alzheimers Dement 2019. [DOI: 10.1016/j.jalz.2019.06.3173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Montecchiani C, Rumore R, Gaudiello F, Miele M, Caltagirone C, Kawarai T, Orlacchio A. P3‐119: CLINICAL AND GENETIC STUDY OF AN ITALIAN FAMILY WITH COMPLICATED HEREDITARY SPASTIC PARAPLEGIA AND ALZHEIMER'S DISEASE. Alzheimers Dement 2018. [DOI: 10.1016/j.jalz.2018.06.1476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Kawarai T, Miyamoto R, Nakagawa E, Koichihara R, Sakamoto T, Mure H, Morigaki R, Koizumi H, Oki R, Montecchiani C, Caltagirone C, Orlacchio A, Hattori A, Mashimo H, Izumi Y, Mezaki T, Kumada S, Taniguchi M, Yokochi F, Saitoh S, Goto S, Kaji R. Phenotype variability and allelic heterogeneity in KMT2B-Associated disease. Parkinsonism Relat Disord 2018; 52:55-61. [PMID: 29653907 DOI: 10.1016/j.parkreldis.2018.03.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [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: 12/05/2017] [Revised: 03/21/2018] [Accepted: 03/25/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Mutations in Lysine-Specific Histone Methyltransferase 2B gene (KMT2B) have been reported to be associated with complex early-onset dystonia. Almost all reported KMT2B mutations occurred de novo in the paternal germline or in the early development of the patient. We describe clinico-genetic features on four Japanese patients with novel de novo mutations and demonstrate the phenotypic spectrum of KMT2B mutations. METHODS We performed genetic studies, including trio-based whole exome sequencing (WES), in a cohort of Japanese patients with a seemingly sporadic early-onset generalized combined dystonia. Potential effects by the identified nucleotide variations were evaluated biologically. Genotype-phenotype correlations were also investigated. RESULTS Four patients had de novo heterozygous mutations in KMT2B, c.309delG, c.1656dupC, c.3325_3326insC, and c.5636delG. Biological analysis of KMT2B mRNA levels showed a reduced expression of mutant transcript frame. All patients presented with motor milestone delay, microcephaly, mild psychomotor impairment, childhood-onset generalized dystonia and superimposed choreoathetosis or myoclonus. One patient cannot stand due to axial hypotonia associated with cerebellar dysfunction. Three patients had bilateral globus pallidal deep brain stimulation (DBS) with excellent or partial response. CONCLUSIONS We further demonstrate the allelic heterogeneity and phenotypic variations of KMT2B-associated disease. Haploinsufficiency is one of molecular pathomechanisms underlying the disease. Cardinal clinical features include combined dystonia accompanying mild psychomotor disability. Cerebellum would be affected in KMT2B-associated disease.
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Affiliation(s)
- Toshitaka Kawarai
- Department of Clinical Neuroscience, Tokushima University, Tokushima, Japan.
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Tokushima University, Tokushima, Japan
| | - Eiji Nakagawa
- Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Reiko Koichihara
- Department of Child Neurology, National Center Hospital, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Takashi Sakamoto
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry (NCNP), Kodaira, Tokyo, Japan
| | - Hideo Mure
- Department of Neurosurgery, Tokushima University, Tokushima, Japan
| | - Ryoma Morigaki
- Department of Neurosurgery, Tokushima University, Tokushima, Japan; Department of Neurodegenerative Disorders Research, And Parkinson's Disease and Dystonia Research Center, Tokushima University, Tokushima, Japan
| | - Hidetaka Koizumi
- Department of Clinical Neuroscience, Tokushima University, Tokushima, Japan
| | - Ryosuke Oki
- Department of Clinical Neuroscience, Tokushima University, Tokushima, Japan
| | - Celeste Montecchiani
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy; Dipartimento di Scienze Chirurgiche e Biomediche, Università di Perugia, Perugia, Italy
| | - Carlo Caltagirone
- Laboratorio di Neurologia Clinica e Comportamentale, IRCCS Santa Lucia, Rome, Italy; Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy; Dipartimento di Scienze Chirurgiche e Biomediche, Università di Perugia, Perugia, Italy
| | - Ayako Hattori
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hideaki Mashimo
- Department of Neuropediatrics, Tokyo Metropolitan Neurological Hospital, Fuchu City, Tokyo, Japan
| | - Yuishin Izumi
- Department of Clinical Neuroscience, Tokushima University, Tokushima, Japan
| | - Takahiro Mezaki
- Department of Neurology, Sakakibara Hakuho Hospital, 5630 Sakakibara-cho, Tsu City, Mie, Japan
| | - Satoko Kumada
- Department of Neuropediatrics, Tokyo Metropolitan Neurological Hospital, Fuchu City, Tokyo, Japan
| | - Makoto Taniguchi
- Department of Neurosurgery, Tokyo Metropolitan Neurological Hospital, Fuchu City, Tokyo, Japan
| | - Fusako Yokochi
- Department of Neurology, Tokyo Metropolitan Neurological Hospital, Fuchu City, Tokyo, Japan
| | - Shinji Saitoh
- Department of Pediatrics and Neonatology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Satoshi Goto
- Department of Neurodegenerative Disorders Research, And Parkinson's Disease and Dystonia Research Center, Tokushima University, Tokushima, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Tokushima University, Tokushima, Japan
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12
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Kamada M, Kawarai T, Miyamoto R, Kawakita R, Tojima Y, Montecchiani C, D'Onofrio L, Caltagirone C, Orlacchio A, Kaji R. Spastic paraplegia type 31: A novel REEP1 splice site donor variant and expansion of the phenotype variability. Parkinsonism Relat Disord 2018; 46:79-83. [DOI: 10.1016/j.parkreldis.2017.10.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 09/28/2017] [Accepted: 10/18/2017] [Indexed: 11/26/2022]
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13
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Renaud M, Tranchant C, Martin JVT, Mochel F, Synofzik M, van de Warrenburg B, Pandolfo M, Koenig M, Kolb SA, Anheim M, Alonso I, Azzedine H, Barbot C, Bereau M, Berkovic S, Bernard G, Bindoff LA, Bompaire F, Bonneau D, Bonneau P, Boycott KM, Bras J, Brais B, Brigatti KW, Cameron J, Chamova T, Choquet K, Delague V, Denizeau P, Dotti MT, El‐Euch G, Elmalik SA, Federico A, Fiskerstrand T, Gagnon C, Guerreiro R, Guissart C, Hassin‐Baer S, Heimdal KR, Héron B, Isohanni P, Kalaydijeva L, Kawarai T, Koht JA, Lai S, Piana RL, Lecocq C, Linnankivi T, Lönnqvist T, Lu C, Maas R, Mahlaoui N, Mallaret M, Marelli C, Mariotti C, Mathieu J, Méneret A, Mignarri A, Monin ML, Montaut S, Nanetti L, Nadjar Y, Poujois A, Salih MA, Sousa S, Stanier P, Stoppa‐Lyonnet D, Strauss K, Tallaksen C, Tarnopolsky M, Tinant N, Tournev I, Topaloglu H, Varhaug KN, Woimant F, Wolf NI, Yahalom G, Yoon G, Young M. A recessive ataxia diagnosis algorithm for the next generation sequencing era. Ann Neurol 2017; 82:892-899. [DOI: 10.1002/ana.25084] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 10/12/2017] [Accepted: 10/17/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Mathilde Renaud
- Department of Neurology, Hautepierre HospitalUniversity Hospitals of StrasbourgStrasbourg France
- Institute of Genetics and Molecular and Cellular Biology, INSERM‐U964/CNRS‐UMR7104University of StrasbourgIllkirch France
- Strasbourg Federation of Translational MedicineUniversity of StrasbourgStrasbourg France
| | - Christine Tranchant
- Department of Neurology, Hautepierre HospitalUniversity Hospitals of StrasbourgStrasbourg France
- Institute of Genetics and Molecular and Cellular Biology, INSERM‐U964/CNRS‐UMR7104University of StrasbourgIllkirch France
- Strasbourg Federation of Translational MedicineUniversity of StrasbourgStrasbourg France
| | | | - Fanny Mochel
- Department of GeneticsPitié‐Salpêtrière University HospitalParis France
- Neurometabolic GRCPierre and Marie Curie UniversityParis France
- Neurometabolic Research GroupPierre and Marie Curie UniversityParis France
| | - Matthis Synofzik
- Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain ResearchUniversity of TübingenTübingen Germany
- German Center for Neurodegenerative DiseasesTübingen Germany
| | - Bart van de Warrenburg
- Department of NeurologyRadboud University Medical Center, Donders Institute for Brain, Cognition, and BehaviorNijmegen the Netherlands
| | - Massimo Pandolfo
- Department of NeurologyFree University of Brussels, Erasme HospitalBrussels Belgium
| | - Michel Koenig
- Rare Disease Genetics LaboratoryUniversity Institute of Clinical Research, University of Montpellier, Montpellier University Hospital CenterMontpellier France
| | | | - Mathieu Anheim
- Department of Neurology, Hautepierre HospitalUniversity Hospitals of StrasbourgStrasbourg France
- Institute of Genetics and Molecular and Cellular Biology, INSERM‐U964/CNRS‐UMR7104University of StrasbourgIllkirch France
- Strasbourg Federation of Translational MedicineUniversity of StrasbourgStrasbourg France
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Kuwabara K, Kawarai T, Ishida Y, Miyamoto R, Oki R, Orlacchio A, Nomura Y, Fukuda M, Ishii E, Shintaku H, Kaji R. A novel compound heterozygous TH mutation in a Japanese case of dopa-responsive dystonia with mild clinical course. Parkinsonism Relat Disord 2017; 46:87-89. [PMID: 29126763 DOI: 10.1016/j.parkreldis.2017.10.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 09/25/2017] [Accepted: 10/22/2017] [Indexed: 11/15/2022]
Affiliation(s)
- Kozue Kuwabara
- Department of Pediatrics, Ehime Prefectural Central Hospital, Kasuga-cho 83, Matsuyama City, Ehime, 790-0024, Japan
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto-cho 3-18-15, Tokushima City, 770-0042, Japan.
| | - Yasushi Ishida
- Department of Pediatrics, Ehime Prefectural Central Hospital, Kasuga-cho 83, Matsuyama City, Ehime, 790-0024, Japan
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto-cho 3-18-15, Tokushima City, 770-0042, Japan
| | - Ryosuke Oki
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto-cho 3-18-15, Tokushima City, 770-0042, Japan
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Via del Fosso di Fiorano 64, Rome 00143, Italy; Dipartimento di Scienze Chirurgiche e Biomediche, Università di Perugia, Piazza Lucio Severi 1, Perugia 06132, Italy
| | - Yoshiko Nomura
- Yoshiko Nomura Neurological Clinic for Children, Yushima 1-2-13, Bunkyo-ku, Tokyo, 113-0034, Japan
| | - Mitsumasa Fukuda
- Department of Pediatrics, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Eiichi Ishii
- Department of Pediatrics, Ehime University Graduate School of Medicine, 454 Shitsukawa, Toon, Ehime, 791-0295, Japan
| | - Haruo Shintaku
- Department of Pediatrics, Osaka City University Graduate School of Medicine, Asahimachi 1-5-7, Abeno-ku, Osaka City, 545-8586, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Kuramoto-cho 3-18-15, Tokushima City, 770-0042, Japan
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15
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Konno T, Yoshida K, Mizuta I, Mizuno T, Kawarai T, Tada M, Nozaki H, Ikeda SI, Onodera O, Wszolek ZK, Ikeuchi T. Diagnostic criteria for adult-onset leukoencephalopathy with axonal spheroids and pigmented glia due to CSF1R mutation. Eur J Neurol 2017; 25:142-147. [PMID: 28921817 DOI: 10.1111/ene.13464] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/07/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND AND PURPOSE To establish and validate diagnostic criteria for adult-onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP) due to colony-stimulating factor 1 receptor (CSF1R) mutation. METHODS We developed diagnostic criteria for ALSP based on a recent analysis of the clinical characteristics of ALSP. These criteria provide 'probable' and 'possible' designations for patients who do not have a genetic diagnosis. To verify its sensitivity and specificity, we retrospectively applied our criteria to 83 ALSP cases who had CSF1R mutations (24 of these were analyzed at our institutions and the others were identified from the literature), 53 cases who had CSF1R mutation-negative leukoencephalopathies and 32 cases who had cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) with NOTCH3 mutations. RESULTS Among the CSF1R mutation-positive cases, 50 cases (60%) were diagnosed as 'probable' and 32 (39%) were diagnosed as 'possible,' leading to a sensitivity of 99% if calculated as a ratio of the combined number of cases who fulfilled 'probable' or 'possible' to the total number of cases. With regard to specificity, 22 cases (42%) with mutation-negative leukoencephalopathies and 28 (88%) with CADASIL were correctly excluded using these criteria. CONCLUSIONS These diagnostic criteria are very sensitive for diagnosing ALSP with sufficient specificity for differentiation from CADASIL and moderate specificity for other leukoencephalopathies. Our results suggest that these criteria are useful for the clinical diagnosis of ALSP.
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Affiliation(s)
- T Konno
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA.,Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - K Yoshida
- Department of Brain Disease Research, Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - I Mizuta
- Department of Neurology, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - T Mizuno
- Department of Neurology, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto, Japan
| | - T Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - M Tada
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - H Nozaki
- Department of Medical Technology, School of Health Sciences Faculty of Medicine, Niigata University, Niigata, Japan
| | - S-I Ikeda
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Nagano, Japan
| | - O Onodera
- Department of Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Z K Wszolek
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA
| | - T Ikeuchi
- Department of Molecular Genetics, Brain Research Institute, Niigata University, Niigata, Japan
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16
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Izumi Y, Takata T, Miyamoto R, Kawarai T, Saito Y, Murayama S, Kaji R. An autopsied case with novel mutated hereditary diffuse leukoencephalopathy with spheroid (HDLS). J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Oki R, Kawarai T, Morigaki R, Oka N, Murakami N, Izumi Y, Goto S, Kaji R. Neuropathological investigation of transgenic mice overexpressing hTFG harboring HMSN-P mutation. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Kamada M, Kawarai T, Kawakita R, Miyamoto R, Tojima Y, Orlacchio A, Kaji R. Hereditary spastic paraplegia type 31: A novel splice site donor mutation and intra-familial phenotypic variability. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Kawarai T, Montecchiani C, Miyamoto R, Gaudiello F, Miele M, Izumi Y, Kaji R, Orlacchio A. Spastic paraplegia type 4: A novel SPAST splice site donor mutation and expansion of the phenotype variability. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Yamazaki H, Takamatsu N, Nodera H, Kawarai T, Izumi Y, Kaji R. Distinguishing features of amyloid polyneuropathy on nerve ultrasound. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Kawarai T, Miyamoito R, Mure H, Morigaki R, Oki R, Orlacchio A, Koichihara R, Nakagawa E, Sakamoto T, Izumi Y, Goto S, Kaji R. Mutations of KMT2B cause involuntary movements with intellectual disability. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Kawarai T, Montecchiani C, Miyamoto R, Gaudiello F, Caltagirone C, Izumi Y, Kaji R, Orlacchio A. Spastic paraplegia type 4: A novel SPAST splice site donor mutation and expansion of the phenotype variability. J Neurol Sci 2017; 380:92-97. [PMID: 28870597 DOI: 10.1016/j.jns.2017.07.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/29/2017] [Accepted: 07/06/2017] [Indexed: 01/30/2023]
Abstract
Mutations in SPG4/SPAST are the most frequent molecular aetiology in the autosomal dominant form of hereditary spastic paraplegia (HSP). Loss-of-function and haploinsufficiency in SPAST have been demonstrated and the pure form of spastic paraplegia is a main clinical manifestation. This study is to explore the novel SPAST splice site donor variant, c.1004+3A>C, in seven patients from two families, one from Italy and the other from Japan. Exon 6 is skipped out by the variant, leading to a premature termination of translation, p.Gly290Trpfs*5. Measurement of SPAST transcripts in lymphocytes demonstrated a reduction through nonsense-mediated mRNA decay (NMD). Intra- and inter-familial phenotypic variations were observed, including age-at-onset, severity of spasticity, and scoliosis. Our study demonstrated further evidence of allelic heterogeneity in SPG4, dosage effects through NMD, and broad clinical features of the SPAST mutation.
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Affiliation(s)
- Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-0042, Japan.
| | - Celeste Montecchiani
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy; Dipartimento di Scienze Chirurgiche e Biomediche, Università di Perugia, Perugia, Italy
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-0042, Japan
| | - Fabrizio Gaudiello
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy
| | - Carlo Caltagirone
- Laboratorio di Neurologia Clinica e Comportamentale, IRCCS Santa Lucia, Rome, Italy; Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Yuishin Izumi
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-0042, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-0042, Japan
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy; Dipartimento di Scienze Chirurgiche e Biomediche, Università di Perugia, Perugia, Italy.
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Kawarai T, Morigaki R, Kaji R, Goto S. Clinicopathological Phenotype and Genetics of X-Linked Dystonia-Parkinsonism (XDP; DYT3; Lubag). Brain Sci 2017; 7:brainsci7070072. [PMID: 28672841 PMCID: PMC5532585 DOI: 10.3390/brainsci7070072] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 05/31/2017] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 12/17/2022] Open
Abstract
X-linked dystonia–parkinsonism (XDP; OMIM314250), also referred to as DYT3 dystonia or “Lubag” disease, was first described as an endemic disease in the Philippine island of Panay. XDP is an adult-onset movement disorder characterized by progressive and severe dystonia followed by overt parkinsonism in the later years of life. Among the primary monogenic dystonias, XDP has been identified as a transcriptional dysregulation syndrome with impaired expression of the TAF1 (TATA box-binding protein associated factor 1) gene, which is a critical component of the cellular transcription machinery. The major neuropathology of XDP is progressive neuronal loss in the neostriatum (i.e., the caudate nucleus and putamen). XDP may be used as a human disease model to elucidate the pathomechanisms by which striatal neurodegeneration leads to dystonia symptoms. In this article, we introduce recent advances in the understanding of the interplay between pathophysiology and genetics in XDP.
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Affiliation(s)
- Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Graduate School of Medical Sciences, Tokushima University, Tokushima 770-8503, Japan.
| | - Ryoma Morigaki
- Parkinson's Disease and Dystonia Research Center, Tokushima University Hospital, Tokushima 770-8503, Japan.
- Department of Neurodegenerative Disorders Research, Institute of Biomedical Sciences, Graduate School of Medical Sciences, Tokushima University, Tokushima 770-8503, Japan.
- Department of Neurosurgery, Institute of Biomedical Sciences, Graduate School of Medical Sciences, Tokushima University, Tokushima 770-8503, Japan.
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Graduate School of Medical Sciences, Tokushima University, Tokushima 770-8503, Japan.
- Parkinson's Disease and Dystonia Research Center, Tokushima University Hospital, Tokushima 770-8503, Japan.
| | - Satoshi Goto
- Parkinson's Disease and Dystonia Research Center, Tokushima University Hospital, Tokushima 770-8503, Japan.
- Department of Neurodegenerative Disorders Research, Institute of Biomedical Sciences, Graduate School of Medical Sciences, Tokushima University, Tokushima 770-8503, Japan.
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Osaki Y, Nodera H, Izumi Y, Shimatani Y, Chimeglkham B, Oki R, Miyamoto R, Kawarai T, Kaji R. 3-2-11. Peripheral nerve excitability changing in spinocerebellar ataxia type 6 (SCA6). Clin Neurophysiol 2017. [DOI: 10.1016/j.clinph.2017.03.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Murakami N, Imamura K, Izumi Y, Egawa N, Tsukita K, Enami T, Yamamoto T, Kawarai T, Kaji R, Inoue H. Proteasome impairment in neural cells derived from HMSN-P patient iPSCs. Mol Brain 2017; 10:7. [PMID: 28196470 PMCID: PMC5310050 DOI: 10.1186/s13041-017-0286-y] [Citation(s) in RCA: 14] [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: 08/18/2016] [Accepted: 01/21/2017] [Indexed: 01/01/2023] Open
Abstract
Hereditary motor and sensory neuropathy with proximal dominant involvement (HMSN-P) is caused by a heterozygous mutation (P285L) in Tropomyosin-receptor kinase Fused Gene (TFG), histopathologically characterized by progressive spinal motor neuron loss with TFG cytosolic aggregates. Although the TFG protein, found as a type of fusion oncoprotein, is known to facilitate vesicle transport from endoplasmic reticulum (ER) to Golgi apparatus at ER exit site, it is unclear how mutant TFG causes motor neuron degeneration. Here we generated induced pluripotent stem cells (iPSCs) from HMSN-P patients, and differentiated the iPSCs into neural cells with spinal motor neurons (iPS-MNs). We found that HMSN-P patient iPS-MNs exhibited ubiquitin proteasome system (UPS) impairment, and HMSN-P patient iPS-MNs were vulnerable to UPS inhibitory stress. Gene correction of the mutation in TFG using the CRISPR-Cas9 system reverted the cellular phenotypes of HMSN-P patient iPS-MNs. Collectively, these results suggest that our cellular model with defects in cellular integrity including UPS impairments may lead to identification of pathomechanisms and a therapeutic target for HMSN-P.
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Affiliation(s)
- Nagahisa Murakami
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan.,Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan
| | - Keiko Imamura
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Yuishin Izumi
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan
| | - Naohiro Egawa
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Kayoko Tsukita
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Takako Enami
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Takuya Yamamoto
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, 770-8503, Japan
| | - Haruhisa Inoue
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8507, Japan.
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26
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Abe T, Kawarai T, Fujita K, Sako W, Terasawa Y, Matsuda T, Sakai W, Tsukamoto-Miyashiro A, Matsui N, Izumi Y, Kaji R, Harada M. MR Spectroscopy in Patients with Hereditary Diffuse Leukoencephalopathy with Spheroids and Asymptomatic Carriers of Colony-stimulating Factor 1 Receptor Mutation. Magn Reson Med Sci 2016; 16:297-303. [PMID: 28025469 PMCID: PMC5743520 DOI: 10.2463/mrms.mp.2016-0016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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] [Indexed: 11/21/2022] Open
Abstract
Purpose: Hereditary diffuse leukoencephalopathy with spheroids (HDLS) is a rare neurodegenerative disorder with various clinical presentations. Mutation of the colony-stimulating factor 1 receptor (CSF1R) gene is considered to be a cause of this autosomal dominant disorder. The purpose of this study was to report magnetic resonance spectroscopy (MRS) findings in patients with HDLS and asymptomatic carriers and to clarify the use of MRS in this disease. Materials and Methods: In this retrospective, institutional review board-approved study, we included four consecutive patients, genetically diagnosed with HDLS, and two asymptomatic carriers after acquiring informed consent. We performed single-voxel MRS of the left centrum semiovale on a 3T clinical scanner. We also included a sex-matched normal dataset. We quantified N-acetylaspartate (NAA), creatine, choline-containing compounds (Cho), glutamine, glutamate (Glu), myo-inositol (Ins), glutathione, lactate (Lac), and gamma-amino butyric acid using LCModel. We performed statistical analysis, and P value <0.05 was considered significant. Results: In HDLS cases, MRS revealed decreased NAA and Glu concentrations, which probably reflected neuronal damage and/or loss, and a subsequent reduction of neurotransmitters. A patient with HDLS also had increased Cho and Ins concentrations, indicating gliosis, and increased Cho concentration was also observed in an asymptomatic carrier. This suggests that metabolic changes had already occurred in an asymptomatic state. Conclusion: We demonstrated changes in metabolite concentrations not only in patients with HDLS but also in asymptomatic CSF1R mutation carriers. Our study indicates that MRS is a potentially useful tool for the analysis of metabolic and pathophysiological findings of HDLS, even during the early stages of disease.
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Affiliation(s)
- Takashi Abe
- Department of Radiology, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Koji Fujita
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Wataru Sako
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Yuka Terasawa
- Department of Neurology, Jikei University School of Medicine
| | - Tsuyoshi Matsuda
- MR Applications and Workflow Asia Pacific, GE Healthcare Japan Corporation
| | - Waka Sakai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Ai Tsukamoto-Miyashiro
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Naoko Matsui
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Yuishin Izumi
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School
| | - Masafumi Harada
- Department of Radiology, Institute of Biomedical Sciences, Tokushima University Graduate School
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27
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Kawarai T, Yamasaki K, Mori A, Takamatsu N, Osaki Y, Banzrai C, Miyamoto R, Oki R, Pedace L, Orlacchio A, Nodera H, Hashiguchi A, Higuchi Y, Takashima H, Nishida Y, Izumi Y, Kaji R. MFN2 transcripts escaping from nonsense-mediated mRNA decay pathway cause Charcot-Marie-Tooth disease type 2A2. J Neurol Neurosurg Psychiatry 2016; 87:1263-1265. [PMID: 27154191 DOI: 10.1136/jnnp-2015-312646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 04/20/2016] [Indexed: 11/04/2022]
Affiliation(s)
- Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Kanto Yamasaki
- Faculty of Medicine, Tokushima University, Tokushima, Japan
| | - Atsuko Mori
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Naoko Takamatsu
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yusuke Osaki
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Chimeglkham Banzrai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Ryosuke Oki
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Lucia Pedace
- Laboratorio di Neurogenetica, CERC-IRCCS Santa Lucia, Rome, Italy
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, CERC-IRCCS Santa Lucia, Rome, Italy Dipartimento di Scienze Chirurgiche e Biomediche, Università di Perugia, Perugia, Italy
| | - Hiroyuki Nodera
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Akihiro Hashiguchi
- Department of Neurology and Geriatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Yujiro Higuchi
- Department of Neurology and Geriatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Hiroshi Takashima
- Department of Neurology and Geriatrics, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | | | - Yuishin Izumi
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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28
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Konno T, Yoshida K, Mizuno T, Kawarai T, Tada M, Nozaki H, Ikeda SI, Nishizawa M, Onodera O, Wszolek ZK, Ikeuchi T. Clinical and genetic characterization of adult-onset leukoencephalopathy with axonal spheroids and pigmented glia associated with CSF1R mutation. Eur J Neurol 2016; 24:37-45. [PMID: 27680516 PMCID: PMC5215554 DOI: 10.1111/ene.13125] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [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: 04/14/2016] [Accepted: 08/09/2016] [Indexed: 01/13/2023]
Abstract
Background and purpose The clinical characteristics of colony stimulating factor 1 receptor (CSF1R) related adult‐onset leukoencephalopathy with axonal spheroids and pigmented glia (ALSP) have been only partially elucidated. Methods Clinical data from CSF1R mutation carriers who had been seen at our institutions or reported elsewhere were collected and analysed using a specific investigation sheet to standardize the data. Results In all, 122 cases from 90 families with CSF1R mutations were identified. The mean age of onset was 43 years (range 18–78 years), the mean age at death was 53 years (range 23–84 years) and the mean disease duration was 6.8 years (range 1–29 years). Women had a significantly younger age of onset than men (40 vs. 47 years, P = 0.0006, 95% confidence interval 3.158–11.177). There was an age‐dependent penetrance that was significantly different between the sexes (P = 0.0013). Motor dysfunctions were the most frequent initial symptom in women whose diseases began in their 20s. Thinning of the corpus callosum, abnormal signalling in pyramidal tracts, diffusion‐restricted lesions and calcifications in the white matter were characteristic imaging findings of ALSP. The calcifications were more frequently reported in our case series than in the literature (54% vs. 3%). Seventy‐nine per cent of the mutations were located in the distal part of the tyrosine kinase domain of CSF1R (102 cases). There were no apparent phenotype−genotype correlations. Conclusions The characteristics of ALSP were clarified. The phenotype of ALSP caused by CSF1R mutations is affected by sex.
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Affiliation(s)
- T Konno
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA.,Department of Neurology, Niigata University, Niigata, Japan
| | - K Yoshida
- Department of Brain Disease Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Mizuno
- Department of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - T Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - M Tada
- Department of Neurology, Niigata University, Niigata, Japan
| | - H Nozaki
- Department of Medical Technology, School of Health Sciences Faculty of Medicine, Niigata University, Niigata, Japan
| | - S-I Ikeda
- Department of Medicine (Neurology and Rheumatology), Shinshu University School of Medicine, Matsumoto, Japan
| | - M Nishizawa
- Department of Neurology, Niigata University, Niigata, Japan
| | - O Onodera
- Department of Molecular Neuroscience, Niigata University, Niigata, Japan
| | - Z K Wszolek
- Department of Neurology, Mayo Clinic, Jacksonville, FL, USA
| | - T Ikeuchi
- Department of Molecular Genetics, Brain Research Institute, Niigata University, Niigata, Japan
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29
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Kawarai T, Miyamoto R, Shimatani Y, Orlacchio A, Kaji R. Choreoathetosis, Dystonia, and Myoclonus in 3 Siblings With Autosomal Recessive Spinocerebellar Ataxia Type 16. JAMA Neurol 2016; 73:888-90. [DOI: 10.1001/jamaneurol.2016.0647] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yoshimitsu Shimatani
- Department of Neurology, Tokushima Prefectural Central Hospital, Tokushima, Japan
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, CERC-IRCCS Santa Lucia, Rome, Italy4Dipartimento di Scienze Chirurgiche e Biomediche, Università di Perugia, Perugia, Italy
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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30
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Pedace L, Mearini M, Casella A, Montecchiani C, Miele M, Caltagirone C, Kawarai T, Orlacchio A. P2‐088: Hereditary Spastic Paraplegia and Alzheimer's Disease: Hypothesis of a Founder Effect of a SPG4/
Spast
Mutation. Alzheimers Dement 2016. [DOI: 10.1016/j.jalz.2016.06.1293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Kawarai T, Tajima A, Kuroda Y, Saji N, Orlacchio A, Terasawa H, Shimizu H, Kita Y, Izumi Y, Mitsui T, Imoto I, Kaji R. A homozygous mutation of VWA3B causes cerebellar ataxia with intellectual disability. J Neurol Neurosurg Psychiatry 2016; 87:656-62. [PMID: 26157035 DOI: 10.1136/jnnp-2014-309828] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 10/30/2014] [Accepted: 06/15/2015] [Indexed: 12/17/2022]
Abstract
BACKGROUND Hereditary cerebellar ataxia constitutes a heterogeneous group of neurodegenerative disorders, occasionally accompanied by other neurological features. Genetic defects remain to be elucidated in approximately 40% of hereditary cerebellar ataxia cases in Japan. We attempted to identify the gene responsible for autosomal recessive cerebellar ataxia with intellectual disability. METHODS The present study involved three patients in a consanguineous Japanese family. Neurological examination and gene analyses were performed in all family members. We performed genome-wide linkage analysis including single nucleotide polymorphism arrays, copy-number variation analysis and whole exome sequencing. To clarify the functional alteration resulting from the identified mutation, we performed cell viability assay of cultured cells expressing mutant protein. RESULTS One homozygous region shared among the three patients on chromosomes 2p16.1-2q12.3 was identified. Using whole exome sequencing, six homozygous variants in genes in the region were detected. Only one variant, VWA3B c.A1865C, results in a change of a highly conserved amino acid (p.K622T) and was not present in control samples. VWA3B encodes a von Willebrand Factor A Domain-Containing Protein 3B with ubiquitous expression, including the cerebellum. The viability of cultured cells expressing the specific K622T mutation was proved to decrease through the activation of apoptotic pathway. CONCLUSIONS Mutated VWA3B was found to be likely associated with cerebellar degeneration with intellectual disability. Although a rare cause of cerebellar degeneration, these findings indicate a critical role for VWA3B in the apoptosis pathway in neuronal tissues.
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Affiliation(s)
- Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Atsushi Tajima
- Department of Human Genetics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan Department of Bioinformatics and Genomics, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Yukiko Kuroda
- Department of Clinical Research, Tokushima National Hospital, National Hospital Organization, Tokushima, Japan
| | - Naoki Saji
- Department of Stroke Medicine, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, CERC-IRCCS Santa Lucia, Rome, Italy Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Hideo Terasawa
- Department of Neurology, Hyogo Brain and Heart Centre, Himeji City, Hyogo, Japan
| | - Hirotaka Shimizu
- Department of Neurology, Hyogo Brain and Heart Centre, Himeji City, Hyogo, Japan
| | - Yasushi Kita
- Department of Neurology, Hyogo Brain and Heart Centre, Himeji City, Hyogo, Japan
| | - Yuishin Izumi
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takao Mitsui
- Department of Clinical Research, Tokushima National Hospital, National Hospital Organization, Tokushima, Japan
| | - Issei Imoto
- Department of Human Genetics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Kaji S, Kawarai T, Miyamoto R, Nodera H, Pedace L, Orlacchio A, Izumi Y, Takahashi R, Kaji R. Late-onset spastic paraplegia type 10 (SPG10) family presenting with bulbar symptoms and fasciculations mimicking amyotrophic lateral sclerosis. J Neurol Sci 2016; 364:45-9. [PMID: 27084214 DOI: 10.1016/j.jns.2016.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 02/02/2016] [Accepted: 03/01/2016] [Indexed: 12/12/2022]
Abstract
Pathogenic mutations in the KIF5A-SPG10 gene, encoding the kinesin HC5A, can be associated with autosomal dominant hereditary spastic paraplegia (ADHSP). It accounts for about 10% of the complicated forms of ADHSP. Peripheral neuropathy, distal upper limb amyotrophy, and cognitive decline are the most common additional clinical features. We examined a 66-year-old Japanese woman manifesting gait disturbance and spastic dysarthria for 6years with positive family history. She showed evidence of upper and lower motor neuron involvement and fasciculations, thus mimicking amyotrophic lateral sclerosis (ALS). Genetic analysis revealed a heterozygous variant in KIF5A (c.484C>T, p.Arg162Trp) in 2 symptomatic members. The mutation was also identified in 4 asymptomatic members, including 2 elderly members aged over 78years. Electromyography in the 2 symptomatic members revealed evidence of lower motor neuron involvement and fasciculation potentials in distal muscles. This report describes the first known Asian family with a KIF5A mutation and broadens the clinical and electrophysiological spectrum associated with KIF5A-SPG10 mutations. Given that our cases showed pseudobulbar palsy, fasciculation and altered penetrance, KIF5A-SPG10 might well be considered as a differential diagnosis of sporadic ALS.
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Affiliation(s)
- Seiji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan; Department of Neurology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan.
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan.
| | - Hiroyuki Nodera
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan.
| | - Lucia Pedace
- Laboratorio di Neurogenetica, CERC-IRCCS Santa Lucia, Rome, Italy.
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, CERC-IRCCS Santa Lucia, Rome, Italy; Dipartimento di Scienze Chirurgiche e Biomolecolari, Università di Perugia, Perugia, Italy.
| | - Yuishin Izumi
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan.
| | - Ryosuke Takahashi
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan.
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima 770-8503, Japan.
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33
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Banzrai C, Nodera H, Kawarai T, Higashi S, Okada R, Mori A, Shimatani Y, Osaki Y, Kaji R. Impaired Axonal Na(+) Current by Hindlimb Unloading: Implication for Disuse Neuromuscular Atrophy. Front Physiol 2016; 7:36. [PMID: 26909041 PMCID: PMC4754663 DOI: 10.3389/fphys.2016.00036] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 11/30/2015] [Accepted: 01/26/2016] [Indexed: 12/12/2022] Open
Abstract
This study aimed to characterize the excitability changes in peripheral motor axons caused by hindlimb unloading (HLU), which is a model of disuse neuromuscular atrophy. HLU was performed in normal 8-week-old male mice by fixing the proximal tail by a clip connected to the top of the animal's cage for 3 weeks. Axonal excitability studies were performed by stimulating the sciatic nerve at the ankle and recording the compound muscle action potential (CMAP) from the foot. The amplitudes of the motor responses of the unloading group were 51% of the control amplitudes [2.2 ± 1.3 mV (HLU) vs. 4.3 ± 1.2 mV (Control), P = 0.03]. Multiple axonal excitability analysis showed that the unloading group had a smaller strength-duration time constant (SDTC) and late subexcitability (recovery cycle) than the controls [0.075 ± 0.01 (HLU) vs. 0.12 ± 0.01 (Control), P < 0.01; 5.4 ± 1.0 (HLU) vs. 10.0 ± 1.3 % (Control), P = 0.01, respectively]. Three weeks after releasing from HLU, the SDTC became comparable to the control range. Using a modeling study, the observed differences in the waveforms could be explained by reduced persistent Na+ currents along with parameters related to current leakage. Quantification of RNA of a SCA1A gene coding a voltage-gated Na+ channel tended to be decreased in the sciatic nerve in HLU. The present study suggested that axonal ion currents are altered in vivo by HLU. It is still undetermined whether the dysfunctional axonal ion currents have any pathogenicity on neuromuscular atrophy or are the results of neural plasticity by atrophy.
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Affiliation(s)
| | - Hiroyuki Nodera
- Department of Neurology, Tokushima University Tokushima, Japan
| | | | - Saki Higashi
- Department of Neurology, Tokushima University Tokushima, Japan
| | - Ryo Okada
- Department of Neurology, Tokushima University Tokushima, Japan
| | - Atsuko Mori
- Department of Neurology, Tokushima University Tokushima, Japan
| | | | - Yusuke Osaki
- Department of Neurology, Tokushima University Tokushima, Japan
| | - Ryuji Kaji
- Department of Neurology, Tokushima University Tokushima, Japan
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34
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Shimatani Y, Nakano Y, Tsuyama N, Murayama S, Oki R, Miyamoto R, Murakami N, Fujita K, Watanabe S, Uehara H, Abe T, Nodera H, Kawarai T, Izumi Y, Kaji R. Extranodal NK/T-cell lymphoma, nasal type, manifesting as rapidly progressive dementia without any mass or enhancing brain lesion. Neuropathology 2016; 36:456-463. [PMID: 26773724 DOI: 10.1111/neup.12285] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 11/25/2015] [Accepted: 11/25/2015] [Indexed: 12/16/2022]
Abstract
Among the many potential etiologies for rapidly progressive dementia (RPD), primary central nervous system extranodal NK/T-cell lymphoma, nasal-type (ENKL) is a rare entity. We present the first reported case of autopsy-proven RPD due to ENKL without any mass or enhancing lesion of the brain. A 54-year-old immunocompetent man presented with RPD, myoclonus and ataxia. The mini-mental state examination (MMSE) score was 22/30. His brain MRI revealed progressive brain atrophy without gadolinium enhancement or mass lesion. Five months after the initial evaluation, cognitive impairment further worsened with an MMSE score of 3/30. At the advanced stage, lumbar MRI showed swollen cauda equina with gadolinium enhancement. The number of Epstein-Barr virus (EBV) DNA in cerebrospinal fluid had gradually increased. Twelve months after onset, the patient died of respiratory failure. Pathological findings revealed that lymphoma cells had diffusely invaded the meninges, parenchyma of the brain, spinal cord and cauda equina. Cells were positive for CD3, CD56 and EBV-encoded small RNAs and negative for CD20. No evidence of malignancy was identified in the visceral organs. This report indicates that ENKL should be recognized as one of the rare causes of RPD. Early testing for EBV-DNA in cerebrospinal fluid and imaging of cauda equina would be useful diagnostic tools.
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Affiliation(s)
- Yoshimitsu Shimatani
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
| | - Yuta Nakano
- Departments of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan
| | - Naoko Tsuyama
- Departments of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan.,Department of Pathology, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Shigeo Murayama
- Departments of Neurology and Neuropathology, Tokyo Metropolitan Geriatric Hospital, Tokyo, Japan
| | - Ryosuke Oki
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
| | - Nagahisa Murakami
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
| | - Koji Fujita
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
| | - Syunsuke Watanabe
- Pathology and Laboratory Medicine, Tokushima University Graduate School, Tokushima, Japan
| | - Hisanori Uehara
- Pathology and Laboratory Medicine, Tokushima University Graduate School, Tokushima, Japan
| | - Takashi Abe
- Radiology, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroyuki Nodera
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
| | - Yuishin Izumi
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Tokushima University Graduate School Tokushima, Japan
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Miyazaki Y, Koizumi H, Miyamoto R, Kawarai T, Kaji R. Treatment of Isolated Dystonia with Zolpidem. Mov Disord Clin Pract 2015; 3:309-311. [PMID: 30713923 DOI: 10.1002/mdc3.12280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/10/2015] [Accepted: 09/19/2015] [Indexed: 11/06/2022] Open
Affiliation(s)
- Yoshimichi Miyazaki
- Department of Clinical Neuroscience Institute of Health Biosciences Graduate School of Medicine University of Tokushima Tokushima Japan
| | - Hidetaka Koizumi
- Department of Clinical Neuroscience Institute of Health Biosciences Graduate School of Medicine University of Tokushima Tokushima Japan
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience Institute of Health Biosciences Graduate School of Medicine University of Tokushima Tokushima Japan
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience Institute of Health Biosciences Graduate School of Medicine University of Tokushima Tokushima Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience Institute of Health Biosciences Graduate School of Medicine University of Tokushima Tokushima Japan
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Montecchiani C, Pedace L, Lo Giudice T, Casella A, Mearini M, Gaudiello F, Pedroso JL, Terracciano C, Caltagirone C, Massa R, St George-Hyslop PH, Barsottini OGP, Kawarai T, Orlacchio A. ALS5/SPG11/KIAA1840 mutations cause autosomal recessive axonal Charcot-Marie-Tooth disease. Brain 2015; 139:73-85. [PMID: 26556829 PMCID: PMC5839554 DOI: 10.1093/brain/awv320] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [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: 07/13/2015] [Accepted: 09/21/2015] [Indexed: 12/12/2022] Open
Abstract
Charcot-Marie-Tooth disease is a group of hereditary peripheral neuropathies that share clinical characteristics of progressive distal muscle weakness and atrophy, foot deformities, distal sensory loss, as well as diminished tendon reflexes. Hundreds of causative DNA changes have been found, but much of the genetic basis of the disease is still unexplained. Mutations in the ALS5/SPG11/KIAA1840 gene are a frequent cause of autosomal recessive hereditary spastic paraplegia with thin corpus callosum and peripheral axonal neuropathy, and account for ∼ 40% of autosomal recessive juvenile amyotrophic lateral sclerosis. The overlap of axonal Charcot-Marie-Tooth disease with both diseases, as well as the common autosomal recessive inheritance pattern of thin corpus callosum and axonal Charcot-Marie-Tooth disease in three related patients, prompted us to analyse the ALS5/SPG11/KIAA1840 gene in affected individuals with autosomal recessive axonal Charcot-Marie-Tooth disease. We investigated 28 unrelated families with autosomal recessive axonal Charcot-Marie-Tooth disease defined by clinical, electrophysiological, as well as pathological evaluation. Besides, we screened for all the known genes related to axonal autosomal recessive Charcot-Marie-Tooth disease (CMT2A2/HMSN2A2/MFN2, CMT2B1/LMNA, CMT2B2/MED25, CMT2B5/NEFL, ARCMT2F/dHMN2B/HSPB1, CMT2K/GDAP1, CMT2P/LRSAM1, CMT2R/TRIM2, CMT2S/IGHMBP2, CMT2T/HSJ1, CMTRID/COX6A1, ARAN-NM/HINT and GAN/GAN), for the genes related to autosomal recessive hereditary spastic paraplegia with thin corpus callosum and axonal peripheral neuropathy (SPG7/PGN, SPG15/ZFYVE26, SPG21/ACP33, SPG35/FA2H, SPG46/GBA2, SPG55/C12orf65 and SPG56/CYP2U1), as well as for the causative gene of peripheral neuropathy with or without agenesis of the corpus callosum (SLC12A6). Mitochondrial disorders related to Charcot-Marie-Tooth disease type 2 were also excluded by sequencing POLG and TYMP genes. An additional locus for autosomal recessive Charcot-Marie-Tooth disease type 2H on chromosome 8q13-21.1 was excluded by linkage analysis. Pedigrees originated in Italy, Brazil, Canada, England, Iran, and Japan. Interestingly, we identified 15 ALS5/SPG11/KIAA1840 mutations in 12 families (two sequence variants were never reported before, p.Gln198* and p.Pro2212fs*5). No large deletions/duplications were detected in these patients. The novel mutations seemed to be pathogenic since they co-segregated with the disease in all pedigrees and were absent in 300 unrelated controls. Furthermore, in silico analysis predicted their pathogenic effect. Our results indicate that ALS5/SPG11/KIAA1840 is the causative gene of a wide spectrum of clinical features, including autosomal recessive axonal Charcot-Marie-Tooth disease.
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Affiliation(s)
| | - Lucia Pedace
- 1 Laboratorio di Neurogenetica, CERC - IRCCS Santa Lucia, Rome, Italy
| | - Temistocle Lo Giudice
- 1 Laboratorio di Neurogenetica, CERC - IRCCS Santa Lucia, Rome, Italy 2 Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Antonella Casella
- 1 Laboratorio di Neurogenetica, CERC - IRCCS Santa Lucia, Rome, Italy
| | - Marzia Mearini
- 1 Laboratorio di Neurogenetica, CERC - IRCCS Santa Lucia, Rome, Italy
| | | | - José L Pedroso
- 3 Department of Neurology, Universidade Federal de São Paulo, Brazil
| | - Chiara Terracciano
- 2 Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Carlo Caltagirone
- 2 Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy 4 Laboratorio di Neurologia Clinica e Comportamentale, IRCCS Santa Lucia, Rome, Italy
| | - Roberto Massa
- 2 Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Peter H St George-Hyslop
- 5 Centre for Research in Neurodegenerative Diseases, University of Toronto, Toronto, Ontario, Canada 6 Department of Medicine, University of Toronto, Toronto, Ontario, Canada 7 Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | | | - Toshitaka Kawarai
- 8 Department of Clinical Neuroscience, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Antonio Orlacchio
- 1 Laboratorio di Neurogenetica, CERC - IRCCS Santa Lucia, Rome, Italy 2 Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
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Miyamoto R, Sumikura H, Takeuchi T, Sanada M, Fujita K, Kawarai T, Mure H, Morigaki R, Goto S, Murayama S, Izumi Y, Kaji R. Autopsy case of severe generalized dystonia and static ataxia with marked cerebellar atrophy. Neurology 2015; 85:1522-4. [DOI: 10.1212/wnl.0000000000002061] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 06/29/2015] [Indexed: 11/15/2022] Open
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Miyamoto R, Kawarai T, Oki R, Matsumoto S, Izumi Y, Kaji R. Lack of C9orf72 expansion in 406 sporadic and familial cases of idiopathic dystonia in Japan. Mov Disord 2015; 30:1430-1. [PMID: 26173439 DOI: 10.1002/mds.26310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Revised: 05/13/2015] [Accepted: 05/25/2015] [Indexed: 12/12/2022] Open
Affiliation(s)
- Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.,The Movement Disorders Clinic, Ijinkai Takeda General Hospital, Kyoto, Japan
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Ryosuke Oki
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | | | - Yuishin Izumi
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima, Japan.,The Movement Disorders Clinic, Ijinkai Takeda General Hospital, Kyoto, Japan
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Lo Giudice T, Casella A, Mearini M, Montecchiani C, Miele M, Kawarai T, Orlacchio A. P1‐054: Clinical and genetic study of a large spg4 italian family with hereditary spastic paraplegia and early‐onset familial Alzheimer's disease. Alzheimers Dement 2015. [DOI: 10.1016/j.jalz.2015.06.251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Carosi L, Lo Giudice T, Di Lullo M, Lombardi F, Babalini C, Gaudiello F, Marfia GA, Massa R, Kawarai T, Orlacchio A. Hereditary spastic paraplegia: a novel mutation and expansion of the phenotype variability in SPG10. J Neurol Neurosurg Psychiatry 2015; 86:702-4. [PMID: 25352184 PMCID: PMC4453490 DOI: 10.1136/jnnp-2014-308625] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 09/01/2014] [Indexed: 11/18/2022]
Affiliation(s)
- Laura Carosi
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Temistocle Lo Giudice
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Martina Di Lullo
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy
| | - Federica Lombardi
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy
| | - Carla Babalini
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy
| | - Fabrizio Gaudiello
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy
| | | | - Roberto Massa
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Health Biosciences, Graduate School of Medicine, University of Tokushima, Tokushima, Japan
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC)-Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
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Saji N, Kawarai T, Miyamoto R, Sato T, Morino H, Orlacchio A, Oki R, Kimura K, Kaji R. Exome sequencing identifies a novel intronic mutation in ENG that causes recurrence of pulmonary arteriovenous malformations. J Neurol Sci 2015; 352:29-33. [PMID: 25868896 DOI: 10.1016/j.jns.2015.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Revised: 01/16/2015] [Accepted: 02/03/2015] [Indexed: 11/16/2022]
Abstract
Hereditary hemorrhagic telangiectasia (HHT) occasionally can be discovered in patients with cerebrovascular disease. Pulmonary arteriovenous malformation (PAVM) is one of the complications in HHT and occasionally is causative for life-threatening embolic stroke. Several genetic defects have been reported in patients with HHT. The broad spectrum of phenotype and intrafamilial phenotype variations, including age-at-onset of vascular events, often make an early diagnosis difficult. We present here a Japanese family with a novel intronic heterozygous mutation of ENG, which was identified using whole exome sequencing (WES). The intronic mutation, IVS3+4delAGTG, results in in-frame deletion of exon 3 and would produce a shorter ENG protein lacking the extracellular forty-seven amino acid sequences, which is located within the orphan domain. Our findings highlight the importance of the domain for the downstream signaling pathway of transforming growth factor-beta and bone morphogenesis protein superfamily receptors. Considering the phenotype variations and the available treatment for vascular complications, an early diagnosis using genetic testing, including WES, should be considered for individuals at risk of HHT.
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Affiliation(s)
- Naoki Saji
- Department of Stroke Medicine, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8503, Japan.
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8503, Japan.
| | - Takahiro Sato
- Department of Stroke Medicine, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
| | - Hiroyuki Morino
- Department of Epidemiology, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan..
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, CERC-IRCCS Santa Lucia, Rome, Italy; Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy.
| | - Ryosuke Oki
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8503, Japan.
| | - Kazumi Kimura
- Department of Stroke Medicine, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8503, Japan.
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42
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Mure H, Morigaki R, Koizumi H, Okita S, Kawarai T, Miyamoto R, Kaji R, Nagahiro S, Goto S. Deep Brain Stimulation of the Thalamic Ventral Lateral Anterior Nucleus for DYT6 Dystonia. Stereotact Funct Neurosurg 2014; 92:393-6. [DOI: 10.1159/000365577] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 06/29/2014] [Indexed: 11/19/2022]
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Lo Giudice T, Lombardi F, Santorelli FM, Kawarai T, Orlacchio A. Hereditary spastic paraplegia: clinical-genetic characteristics and evolving molecular mechanisms. Exp Neurol 2014; 261:518-39. [PMID: 24954637 DOI: 10.1016/j.expneurol.2014.06.011] [Citation(s) in RCA: 237] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Revised: 06/07/2014] [Accepted: 06/12/2014] [Indexed: 12/12/2022]
Abstract
Hereditary spastic paraplegia (HSP) is a group of clinically and genetically heterogeneous neurological disorders characterized by pathophysiologic hallmark of length-dependent distal axonal degeneration of the corticospinal tracts. The prominent features of this pathological condition are progressive spasticity and weakness of the lower limbs. To date, 72 spastic gait disease-loci and 55 spastic paraplegia genes (SPGs) have been identified. All modes of inheritance (autosomal dominant, autosomal recessive, and X-linked) have been described. Recently, a late onset spastic gait disorder with maternal trait of inheritance has been reported, as well as mutations in genes not yet classified as spastic gait disease. Several cellular processes are involved in its pathogenesis, such as membrane and axonal transport, endoplasmic reticulum membrane modeling and shaping, mitochondrial function, DNA repair, autophagy, and abnormalities in lipid metabolism and myelination processes. Moreover, recent evidences have been found about the impairment of endosome membrane trafficking in vesicle formation and about the involvement of oxidative stress and mtDNA polymorphisms in the onset of the disease. Interactome networks have been postulated by bioinformatics and biological analyses of spastic paraplegia genes, which would contribute to the development of new therapeutic approaches.
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Affiliation(s)
- Temistocle Lo Giudice
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy; Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy
| | - Federica Lombardi
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy
| | - Filippo Maria Santorelli
- Unità Operativa Complessa di Medicina Molecolare, Neurogenetica e Malattie Neurodegenerative, IRCCS Stella Maris, Pisa, Italy
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Health Biosciences, Graduate School of Medicine, University of Tokushima, Tokushima, Japan
| | - Antonio Orlacchio
- Laboratorio di Neurogenetica, Centro Europeo di Ricerca sul Cervello (CERC) - Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Santa Lucia, Rome, Italy; Dipartimento di Medicina dei Sistemi, Università di Roma "Tor Vergata", Rome, Italy.
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Kumar KR, Lohmann K, Masuho I, Miyamoto R, Ferbert A, Lohnau T, Kasten M, Hagenah J, Brüggemann N, Graf J, Münchau A, Kostic VS, Sue CM, Domingo AR, Rosales RL, Lee LV, Freimann K, Westenberger A, Mukai Y, Kawarai T, Kaji R, Klein C, Martemyanov KA, Schmidt A. Mutations in GNAL: a novel cause of craniocervical dystonia. JAMA Neurol 2014; 71:490-4. [PMID: 24535567 DOI: 10.1001/jamaneurol.2013.4677] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Mutations in the GNAL gene have recently been shown to cause primary torsion dystonia. The GNAL-encoded protein (Gαolf) is important for dopamine D1 receptor function and odorant signal transduction. We sequenced all 12 exons of GNAL in 461 patients from Germany, Serbia, and Japan, including 318 patients with dystonia (190 with cervical dystonia), 51 with hyposmia and Parkinson disease, and 92 with tardive dyskinesia or acute dystonic reactions. OBSERVATIONS We identified the following two novel heterozygous putative mutations in GNAL: p.Gly213Ser in a German patient and p.Ala353Thr in a Japanese patient. These variants were predicted to be pathogenic in silico, were absent in ethnically matched control individuals, and impaired Gαolf coupling to D1 receptors in a bioluminescence energy transfer (BRET) assay. Two additional variants appeared to be benign because they behaved like wild-type samples in the BRET assay (p.Ala311Thr) or were detected in ethnically matched controls (p.Thr92Ala). Both patients with likely pathogenic mutations had craniocervical dystonia with onset in the fifth decade of life. No pathogenic mutations were detected in the patients with hyposmia and Parkinson disease, tardive dyskinesias, or acute dystonic reactions. CONCLUSIONS AND RELEVANCE Mutations in GNAL can cause craniocervical dystonia in different ethnicities. The BRET assay may be a useful tool to support the pathogenicity of identified variants in the GNAL gene.
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Affiliation(s)
- Kishore R Kumar
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany2Department of Neurogenetics, Kolling Medical Institute, Royal North Shore Hospital and University of Sydney, Sydney, Australia
| | - Katja Lohmann
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | - Ikuo Masuho
- Department of Neuroscience, The Scripps Research Institute, Jupiter, Florida
| | - Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Health Bioscience, Graduate School of Medicine, University of Tokushima, Tokushima, Japan
| | | | - Thora Lohnau
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | - Meike Kasten
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | - Johann Hagenah
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | | | - Julia Graf
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | - Alexander Münchau
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany7Department of Pediatric and Adult Movement Disorders and Neuropsychiatry, Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | | | - Carolyn M Sue
- Department of Neurogenetics, Kolling Medical Institute, Royal North Shore Hospital and University of Sydney, Sydney, Australia
| | - Aloysius R Domingo
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany9Department of Neurosciences, Philippine General Hospital, Manila, Philippines
| | - Raymond L Rosales
- Department of Neurology and Psychiatry, University of Santo Tomas Hospital, Manila, Philippines
| | - Lilian V Lee
- Child Neurology Section, Philippine Children's Medical Center, Quezon City, Philippines
| | - Karen Freimann
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | - Ana Westenberger
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
| | - Youhei Mukai
- Department of Clinical Neuroscience, Institute of Health Bioscience, Graduate School of Medicine, University of Tokushima, Tokushima, Japan
| | - Toshitaka Kawarai
- Department of Clinical Neuroscience, Institute of Health Bioscience, Graduate School of Medicine, University of Tokushima, Tokushima, Japan
| | - Ryuji Kaji
- Department of Clinical Neuroscience, Institute of Health Bioscience, Graduate School of Medicine, University of Tokushima, Tokushima, Japan
| | - Christine Klein
- Institute of Neurogenetics, University of Luebeck, Luebeck, Germany
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Tiribuzi R, Crispoltoni L, Porcellati S, Di Lullo M, Florenzano F, Pirro M, Bagaglia F, Kawarai T, Zampolini M, Orlacchio A, Orlacchio A. miR128 up-regulation correlates with impaired amyloid β(1-42) degradation in monocytes from patients with sporadic Alzheimer's disease. Neurobiol Aging 2014; 35:345-56. [DOI: 10.1016/j.neurobiolaging.2013.08.003] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 07/23/2013] [Accepted: 08/03/2013] [Indexed: 11/26/2022]
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Terasawa Y, Osaki Y, Kawarai T, Sugimoto T, Orlacchio A, Abe T, Izumi Y, Kaji R. Increasing and persistent DWI changes in a patient with Hereditary Diffuse Leukoencephalopathy with Spheroids. J Neurol Sci 2013; 335:213-5. [DOI: 10.1016/j.jns.2013.08.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/29/2013] [Accepted: 08/20/2013] [Indexed: 10/26/2022]
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Miyamoto R, Koizumi H, Morino H, Kawarai T, Maruyama H, Mukai Y, Miyashiro A, Sako W, Izumi Y, Kawakami H, Kaji R. DYT6 in Japan-genetic screening and clinical characteristics of the patients. Mov Disord 2013; 29:278-80. [PMID: 24227593 DOI: 10.1002/mds.25745] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2013] [Revised: 10/06/2013] [Accepted: 10/21/2013] [Indexed: 11/08/2022] Open
Affiliation(s)
- Ryosuke Miyamoto
- Department of Clinical Neuroscience, Institute of Health Biosciences, Graduate School of Medicine, University of Tokushima, Tokushima, Japan; Department of Epidemiology, Research Institute for Radiation Biology & Medicine, Hiroshima University, Hiroshima, Japan; The Movement Disorders Clinic, Ijinkai Takeda General Hospital, Kyoto, Japan
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Inui T, Kawarai T, Fujita K, Kawamura K, Mitsui T, Orlacchio A, Kamada M, Abe T, Izumi Y, Kaji R. A new CSF1R mutation presenting with an extensive white matter lesion mimicking primary progressive multiple sclerosis. J Neurol Sci 2013; 334:192-5. [DOI: 10.1016/j.jns.2013.08.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Revised: 07/15/2013] [Accepted: 08/14/2013] [Indexed: 10/26/2022]
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Tiribuzi R, Crispoltoni L, Porcellati S, Mearini M, Di Lullo M, Florenzano F, Pirro M, Bagaglia F, Palmerini C, Miele M, Kawarai T, Zampolini M, Orlacchio A, Orlacchio A. P1–122: MiR128 up‐regulation correlates with impaired beta‐amyloid 42 degradation in monocytes of patients with sporadic Alzheimer's disease. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kawarai T, Miyamoto R, Murakami N, Miyazaki Y, Koizumi H, Sako W, Mukai Y, Sato K, Matsumoto S, Sakamoto T, Izumi Y, Kaji R. [Dystonia genes and elucidation of their roles in dystonia pathogenesis]. Rinsho Shinkeigaku 2013; 53:419-29. [PMID: 23782819 DOI: 10.5692/clinicalneurol.53.419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Identification of causative genes for hereditary dystonia and elucidation of their functions are crucial for better understanding of dystonia pathogenesis. As seen in other hereditary neurologic disorders, intra- and inter-familial clinical variations have been demonstrated in hereditary dystonia. Asymptomatic carriers can be found due to alterations in penetrance, generally reduced in succeeding generations. Current known dystonia genes include those related to dopamine metabolism, transcription factor, cytoskeleton, transport of glucose and sodium ion, etc. It has been reported that effects of deep brain stimulation can vary significantly depending on genotype. Accumulation of genotype-outcome correlations would contribute to treatment decisions for dystonia patients.
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Affiliation(s)
- Toshitaka Kawarai
- Department of Clinical Neuroscience Institute of Health Biosciences, Graduate School of Medicine, University of Tokushima
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