CGG/CCG Repeat Expansions in

Journal

Neurology. Genetics
ISSN: 2376-7839
Titre abrégé: Neurol Genet
Pays: United States
ID NLM: 101671068

Informations de publication

Date de publication:
Aug 2024
Historique:
received: 23 01 2024
accepted: 24 05 2024
medline: 23 9 2024
pubmed: 23 9 2024
entrez: 23 9 2024
Statut: epublish

Résumé

This study characterizes oculopharyngodistal myopathy in 4 Thai patients from 3 families with CGG/CCG repeat expansion in Repeat-primed PCR analyzed CGG/CCG repeat size in All patients exhibited strong somatic instabilities of the expanded CGG/CCG repeats, primarily manifesting as oculopharyngeal weakness. Patient 1 had mild finger extensor and intrinsic hand muscle weakness, and although patient 2 lacked limb weakness, both siblings showed electrophysiologic evidence of distal myopathy, indicative of OPDM. Patient 3, the daughter of a sibling with OPDM reported in 2004, lacked limb weakness or leukoencephalopathy on brain MRI. Patient 4, initially misdiagnosed with refractory myasthenia gravis, had generalized muscle weakness. While initially characterized as oculopharyngeal myopathy with leukoencephalopathy (OPML) in a Japanese family, our study suggests a stronger association between CGG/CCG expansion in

Identifiants

DOI: 10.1212/NXG.0000000000200170 PMID: 39308795 PMC: PMC11236329
pubmed: 39308795
doi: 10.1212/NXG.0000000000200170
pii: NXG-2024-100015
pmc: PMC11236329
doi:

Types de publication

Journal Article

Langues

eng

Pagination

e200170

Informations de copyright

Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.

Déclaration de conflit d'intérêts

The authors report no relevant disclosures. Go to Neurology.org/NG for full disclosures.

Auteurs

Sunsanee Pongpakdee (S)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Metha Apiwattanakul (M)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Thanes Termglinchan (T)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Rawiphan Witoonpanich (R)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Charungthai Dejthevaporn (C)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Theeraphong Lee (T)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Supika Wansophonkul (S)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Ai Yamanaka (A)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Shunsuke Funaguma (S)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Aritoshi Lida (A)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

Ichizo Nishino (I)

From the Department of Medicine (S.P.), Bhumibol Adulyadej Hospital; Department of Neurology (M.A., T.T.), Neurological Institute of Thailand; Department of Medicine (R.W., C.D.), Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok; Department of Medicine (T.L.), HRH Princess Sirindhorn Hospital, Rayong; Department of Radiology (S.W.), Bhumibol Adulyadej Hospital, Bangkok, Thailand; Department of Neuromuscular Research (A.Y., I.N.), National Institute of Neuroscience, National Center of Neurology and Psychiatry (NCNP); and Department of Clinical Genome Analysis (S.F., A.I., I.N.), Medical Genome Center, NCNP, Tokyo, Japan.

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