Journal of Movement Disorders

Jia Lun Lim

5 Articles

Loss-of-Function Variant in the SMPD1 Gene in Progressive Supranuclear Palsy-Richardson Syndrome Patients of Chinese Ancestry: Shen-Yang Lim, Ai Huey Tan, Jia Nee Foo, Yi Jayne Tan, Elaine GY Chew, Azlina Ahmad Annuar, Alfand Marl Dy Closas, Azalea Pajo, Jia Lun Lim, Yi Wen Tay, Anis Nadhirah, Jia Wei Hor, Tzi Shin Toh, Lei Cheng Lit, Jannah Zulkefli, Su Juen Ngim, Weng Khong Lim, Huw R. Morris, Eng-King Tan, Adeline SL Ng; J Mov Disord. 2024;17(2):213-217. Published online January 31, 2024; DOI: https://doi.org/10.14802/jmd.24009

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Lysosomal dysfunction plays an important role in neurodegenerative diseases, including Parkinson’s disease (PD) and possibly Parkinson-plus syndromes such as progressive supranuclear palsy (PSP). This role is exemplified by the involvement of variants in the GBA1 gene, which results in a deficiency of the lysosomal enzyme glucocerebrosidase and is the most frequently identified genetic factor underlying PD worldwide. Pathogenic variants in the SMPD1 gene are a recessive cause of Niemann–Pick disease types A and B. Here, we provide the first report on an association between a loss-of-function variant in the SMPD1 gene present in a heterozygous state (p.Pro332Arg/p.P332R, which is known to result in reduced lysosomal acid sphingomyelinase activity), with PSP-Richardson syndrome in three unrelated patients of Chinese ancestry.

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Parkinson’s Disease is Predominantly a Genetic Disease
Shen-Yang Lim, Christine Klein
Journal of Parkinson's Disease.2024; 14(3): 467. CrossRef
Identification of Genetic Variants in Progressive Supranuclear Palsy in Southeast Asia
Adeline Su Lyn Ng, Ai Huey Tan, Yi Jayne Tan, Jia Lun Lim, Michelle Mulan Lian, Alfand Marl Dy Closas, Azlina Ahmad‐Annuar, Shanthi Viswanathan, Yuen Kang Chia, Jia Nee Foo, Weng Khong Lim, Eng‐King Tan, Shen‐Yang Lim
Movement Disorders.2024;[Epub] CrossRef

A KMT2B Frameshift Variant Causing Focal Dystonia Restricted to the Oromandibular Region After Long-Term Follow-up: Alfand Marl F. Dy Closas, Katja Lohmann, Ai Huey Tan, Norlinah Mohamed Ibrahim, Jia Lun Lim, Yi Wen Tay, Kalai Arasu Muthusamy, Azlina Binti Ahmad-Annuar, Christine Klein, Shen-Yang Lim; J Mov Disord. 2023;16(1):91-94. Published online December 20, 2022; DOI: https://doi.org/10.14802/jmd.22109

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Abstract PDF Supplementary Material

KMT2B-linked dystonia (DYT-KMT2B) is a childhood-onset dystonia syndrome typically beginning in the lower limbs and progressing caudocranially to affect the upper limbs with eventual prominent craniocervical involvement. Despite its recent recognition, it now appears to be one of the more common monogenic causes of dystonia syndromes. Here, we present an atypical case of DYT-KMT2B with oromandibular dystonia as the presenting feature, which remained restricted to this region three decades after symptom onset. This appears to be the first reported case of DYT-KMT2B from Southeast Asia and provides further supporting evidence for the pathogenic impact of the KMT2B c.6210_6213delTGAG variant.

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Genetic Update and Treatment for Dystonia
Jan Koptielow, Emilia Szyłak, Olga Szewczyk-Roszczenko, Piotr Roszczenko, Jan Kochanowicz, Alina Kułakowska, Monika Chorąży
International Journal of Molecular Sciences.2024; 25(7): 3571. CrossRef
KMT2B-Related Dystonia in Indian Patients With Literature Review and Emphasis on Asian Cohort
Debjyoti Dhar, Vikram V Holla, Riyanka Kumari, Neeharika Sriram, Jitender Saini, Ravi Yadav, Akhilesh Pandey, Nitish Kamble, Babylakshmi Muthusamy, Pramod Kumar Pal
Journal of Movement Disorders.2023; 16(3): 285. CrossRef

Alternating Hemiplegia of Childhood in a Person of Malay Ethnicity with Diffusion Tensor Imaging Abnormalities: Ai Huey Tan, Tien Lee Ong, Norlisah Ramli, Li Kuo Tan, Jia Lun Lim, Mohamad Addin Azhan, Azlina Ahmad-Annuar, Khairul Azmi Ibrahim, Zariah Abdul-Aziz, Laurie J. Ozelius, Allison Brashear, Shen-Yang Lim; J Mov Disord. 2019;12(2):132-134. Published online May 30, 2019; DOI: https://doi.org/10.14802/jmd.18063

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White matter and cerebellar involvement in alternating hemiplegia of childhood
Mariasavina Severino, Livia Pisciotta, Domenico Tortora, Benedetta Toselli, Michela Stagnaro, Ramona Cordani, Giovanni Morana, Anna Zicca, Svetlana Kotzeva, Clelia Zanaboni, Giovanni Montobbio, Andrea Rossi, Elisa De Grandis
Journal of Neurology.2020; 267(5): 1300. CrossRef

A Patient with Beta-Propeller Protein-Associated Neurodegeneration: Treatment with Iron Chelation Therapy: Shen-Yang Lim, Ai Huey Tan, Azlina Ahmad-Annuar, Susanne A. Schneider, Ping Chong Bee, Jia Lun Lim, Norlisah Ramli, Mohamad Imran Idris; J Mov Disord. 2018;11(2):89-92. Published online May 30, 2018; DOI: https://doi.org/10.14802/jmd.17082

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We present a case of beta-propeller protein-associated neurodegeneration, a form of neurodegeneration with brain iron accumulation. The patient harbored a novel mutation in the WDR45 gene. A detailed video and description of her clinical condition are provided. Her movement disorder phenomenology was characterized primarily by limb stereotypies and gait dyspraxia. The patient’s disability was advanced by the time iron-chelating therapy with deferiprone was initiated, and no clinical response in terms of cognitive function, behavior, speech, or movements were observed after one year of treatment.

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Lipid droplet accumulation in Wdr45-deficient cells caused by impairment of chaperone-mediated autophagic degradation of Fasn
Qiuhong Xiong, Huimin Sun, Yanlin Wang, Qian Xu, Yu Zhang, Mei Xu, Zhonghua Zhao, Ping Li, Changxin Wu
Lipids in Health and Disease.2024;[Epub] CrossRef
L-serine restored lysosomal failure in cells derived from patients with BPAN reducing iron accumulation with eliminating lipofuscin
Hye Eun Lee, Minkyo Jung, Kiju Choi, Jae Hyuck Jang, Su-Kyeong Hwang, Sehyun Chae, Jae-Hyeok Lee, Ji Young Mun
Free Radical Biology and Medicine.2024; 221: 273. CrossRef
Quantitative retrospective natural history modeling of WDR45-related developmental and epileptic encephalopathy – a systematic cross-sectional analysis of 160 published cases
Afshin Saffari, Julian Schröter, Sven F. Garbade, Julian E. Alecu, Darius Ebrahimi-Fakhari, Georg F. Hoffmann, Stefan Kölker, Markus Ries, Steffen Syrbe
Autophagy.2022; 18(7): 1715. CrossRef
Cerebral Iron Deposition in Neurodegeneration
Petr Dusek, Tim Hofer, Jan Alexander, Per M. Roos, Jan O. Aaseth
Biomolecules.2022; 12(5): 714. CrossRef
Interactions of dopamine, iron, and alpha-synuclein linked to dopaminergic neuron vulnerability in Parkinson's disease and Neurodegeneration with Brain Iron Accumulation disorders
Rachel M. Wise, Annika Wagener, Urban M. Fietzek, Thomas Klopstock, Eugene V. Mosharov, Fabio A. Zucca, David Sulzer, Luigi Zecca, Lena F. Burbulla
Neurobiology of Disease.2022; 175: 105920. CrossRef
WDR45 variants cause ferrous iron loss due to impaired ferritinophagy associated with nuclear receptor coactivator 4 and WD repeat domain phosphoinositide interacting protein 4 reduction
Kiwako Tsukida, Shin-ichi Muramatsu, Hitoshi Osaka, Takanori Yamagata, Kazuhiro Muramatsu
Brain Communications.2022;[Epub] CrossRef
Iron Chelation in Movement Disorders: Logical or Ironical
Dinkar Kulshreshtha, Jacky Ganguly, Mandar Jog
Canadian Journal of Neurological Sciences / Journal Canadien des Sciences Neurologiques.2021; : 1. CrossRef
Emerging Disease-Modifying Therapies in Neurodegeneration With Brain Iron Accumulation (NBIA) Disorders
Vassilena Iankova, Ivan Karin, Thomas Klopstock, Susanne A. Schneider
Frontiers in Neurology.2021;[Epub] CrossRef
Consensus clinical management guideline for beta‐propeller protein‐associated neurodegeneration
Jenny L Wilson, Allison Gregory, Manju A Kurian, Ittai Bushlin, Fanny Mochel, Lisa Emrick, Laura Adang, Penelope Hogarth, Susan J Hayflick
Developmental Medicine & Child Neurology.2021; 63(12): 1402. CrossRef
WDR45, one gene associated with multiple neurodevelopmental disorders
Yingying Cong, Vincent So, Marina A. J. Tijssen, Dineke S. Verbeek, Fulvio Reggiori, Mario Mauthe
Autophagy.2021; 17(12): 3908. CrossRef
Towards Precision Therapies for Inherited Disorders of Neurodegeneration with Brain Iron Accumulation
Robert V.V. Spaull, Audrey K.S. Soo, Penelope Hogarth, Susan J. Hayflick, Manju A. Kurian
Tremor and Other Hyperkinetic Movements.2021;[Epub] CrossRef
The roles of iron and HFE genotype in neurological diseases
Yunsung Kim, James R. Connor
Molecular Aspects of Medicine.2020; 75: 100867. CrossRef
The Contribution of Iron to Protein Aggregation Disorders in the Central Nervous System
Karina Joppe, Anna-Elisa Roser, Fabian Maass, Paul Lingor
Frontiers in Neuroscience.2019;[Epub] CrossRef

Purposeless Groaning in Parkinson’s Disease: Shen-Yang Lim, Ai Huey Tan, Jia Lun Lim, Azlina Ahmad-Annuar; J Mov Disord. 2018;11(2):87-88. Published online May 30, 2018; DOI: https://doi.org/10.14802/jmd.18004

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Purpose
less groaning has been reported in advanced progressive supranuclear palsy. We present a case of purposeless groaning occurring as a primary complaint in a patient with advanced Parkinson’s disease. Purposeless groaning is thought to be a manifestation of disinhibition and perseveration due to frontal-subcortical dysfunction. Proper recognition of this phenomenon will help clinicians to avoid unnecessary investigations and treatment (e.g., prescription of opioid medications).

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OFF-Period Purposeless Groaning in Parkinsonism
Vikash Agarwal, Jeyalakshmi Rajan, Norlisah Ramli, Cecilia Santiago, Dushyanth B Jasti, Ai HHuey Tan, Shen-Yang Lim
Neurology India.2022; 70(3): 1232. CrossRef
Involuntary moaning in a Hispanic family with eight affected members
Maria Gisatulin, Malco Rossi, Claudia Perandones, Christine Klein, Katja Lohmann, Marcelo Merello
Parkinsonism & Related Disorders.2021; 89: 206. CrossRef
Involuntary Groaning Induced by Levodopa Therapy in a Patient With Progressive Supranuclear Palsy
Jung E. Park
JAMA Neurology.2020; 77(12): 1569. CrossRef
Clinical Phenotype of LRRK2 R1441C in 2 Chinese Sisters
Shen-Yang Lim, Jia Lun Lim, Azlina Ahmad-Annuar, Katja Lohmann, Ai Huey Tan, Kai Bin Lim, Yi Wen Tay, Yee Lee Shing, Kalai Arasu Muthusamy, Peter Bauer, Arndt Rolfs, Christine Klein
Neurodegenerative Diseases.2020; 20(1): 39. CrossRef
The spectrum of involuntary vocalizations in humans: A video atlas
Tina Mainka, Bettina Balint, Felix Gövert, Lille Kurvits, Christoph van Riesen, Andrea A. Kühn, Marina A.J. Tijssen, Andrew J. Lees, Kirsten Müller‐Vahl, Kailash P. Bhatia, Christos Ganos
Movement Disorders.2019; 34(12): 1774. CrossRef

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