Journal of Movement Disorders

Yun Su Hwang

7 Articles

Caregiver Burden of Patients With Huntington’s Disease in South Korea: Chan Young Lee, Chaewon Shin, Yun Su Hwang, Eungseok Oh, Manho Kim, Hyun Sook Kim, Sun Ju Chung, Young Hee Sung, Won Tae Yoon, Jin Whan Cho, Jae-Hyeok Lee, Han-Joon Kim, Hee Jin Chang, Beomseok Jeon, Kyung Ah Woo, Seong-Beom Koh, Kyum-Yil Kwon, Jangsup Moon, Young Eun Kim, Jee-Young Lee; J Mov Disord. 2024;17(1):30-37. Published online September 11, 2023; DOI: https://doi.org/10.14802/jmd.23134

4,354 View
506 Download
1 Web of Science
3 Crossref
1 Comments

Objective
This is the first prospective cohort study of Huntington’s disease (HD) in Korea. This study aimed to investigate the caregiver burden in relation to the characteristics of patients and caregivers.
Methods
From August 2020 to February 2022, we enrolled patients with HD from 13 university hospitals in Korea. We used the 12-item Zarit Burden Interview (ZBI-12) to evaluate the caregiver burden. We evaluated the clinical associations of the ZBI-12 scores by linear regression analysis and investigated the differences between the low- and high-burden groups.
Results
Sixty-five patients with HD and 45 caregivers were enrolled in this cohort study. The average age at onset of motor symptoms was 49.3 ± 12.3 years, with an average cytosine-adenine-guanine (CAG)n of 42.9 ± 4.0 (38–65). The median ZBI-12 score among our caregivers was 17.6 ± 14.2. A higher caregiver burden was associated with a more severe Shoulson–Fahn stage (p = 0.038) of the patients. A higher ZBI-12 score was also associated with lower independence scale (B = -0.154, p = 0.006) and functional capacity (B = -1.082, p = 0.002) scores of patients. The caregiving duration was longer in the high- than in the low-burden group. Caregivers’ demographics, blood relation, and marital and social status did not affect the burden significantly.
Conclusion
HD patients’ neurological status exerts an enormous impact on the caregiver burden regardless of the demographic or social status of the caregiver. This study emphasizes the need to establish an optimal support system for families dealing with HD in Korea. A future longitudinal analysis could help us understand how disease progression aggravates the caregiver burden throughout the entire disease course.

Citations

Citations to this article as recorded by

Non-Pharmacological Interventions for Caregivers of People with Motor Neurone Disease: A Scoping Review of Psychosocial Outcomes
Chidera Okoh, Leighanne Mayall, Selina M. Makin, Cliff Chen, Nicolò Zarotti
Brain Sciences.2025; 15(2): 112. CrossRef
A Practical Guide for Clinical Approach to Patients With Huntington’s Disease in Korea
Chaewon Shin, Ryul Kim, Dallah Yoo, Eungseok Oh, Jangsup Moon, Minkyeong Kim, Jee-Young Lee, Jong-Min Kim, Seong-Beom Koh, Manho Kim, Beomseok Jeon
Journal of Movement Disorders.2024; 17(2): 138. CrossRef
Attitude toward physical activity among Asian American family caregivers of persons living with dementia
JiWon Choi, Van Park, Andrew Jung, Janice Tsoh
Geriatric Nursing.2024;[Epub] CrossRef

Association of Depression With Early Occurrence of Postural Instability in Parkinson’s Disease: Yun Su Hwang, Sungyang Jo, Kye Won Park, Seung Hyun Lee, Sangjin Lee, Sun Ju Chung; J Mov Disord. 2023;16(1):68-78. Published online December 20, 2022; DOI: https://doi.org/10.14802/jmd.22091

3,170 View
158 Download
1 Crossref

Abstract PDF Supplementary Material

Objective
Depression in Parkinson’s disease (PD) affects the quality of life of patients. Postural instability and gait disturbance are associated with the severity and prognosis of PD. We investigated the association of depression with axial involvement in early-stage PD patients.
Methods
This study involved 95 PD patients unexposed to antiparkinsonian drugs. After a baseline assessment for depression, the subjects were divided into a depressed PD group and a nondepressed PD group. Analyses were conducted to identify an association of depression at baseline with the following outcome variables: the progression to Hoehn and Yahr scale (H-Y) stage 3, the occurrence of freezing of gait (FOG), levodopa-induced dyskinesia, and wearing-off. The follow-up period was 53.40 ± 16.79 months from baseline.
Results
Kaplan–Meier survival curves for H-Y stage 3 and FOG showed more prominent progression to H-Y stage 3 and occurrences of FOG in the depressed PD group than in the nondepressed PD group (log-rank p = 0.025 and 0.003, respectively). Depression in drug-naïve, early-stage PD patients showed a significant association with the progression to H-Y stage 3 (hazard ratio = 2.55; 95% confidence interval = 1.32–4.93; p = 0.005), as analyzed by Cox regression analyses. In contrast, the occurrence of levodopa-induced dyskinesia and wearing-off did not differ between the two groups (log-rank p = 0.903 and 0.351, respectively).
Conclusion
Depression in drug-naïve, early-stage PD patients is associated with an earlier occurrence of postural instability. This suggests shared nondopaminergic pathogenic mechanisms and potentially enables the prediction of early development of postural instability.

Citations

Citations to this article as recorded by

Association of motor subtype and tremor type with Parkinson's disease progression: An exploratory longitudinal analysis
Yuke Zhong, Huahua Su, Ying Liu, Hang Liu, Guohui Liu, Zhihui Liu, Jiahao Wei, Junyi Wang, Yuchen She, Changhong Tan, Lijuan Mo, Lin Han, Fen Deng, Xi Liu, Lifen Chen
Journal of Parkinson’s Disease.2024;[Epub] CrossRef

The Effect of Blood Lipids, Type 2 Diabetes, and Body Mass Index on Parkinson’s Disease: A Korean Mendelian Randomization Study: Kye Won Park, Yun Su Hwang, Seung Hyun Lee, Sungyang Jo, Sun Ju Chung; J Mov Disord. 2023;16(1):79-85. Published online January 12, 2023; DOI: https://doi.org/10.14802/jmd.22175

4,012 View
145 Download
6 Web of Science
6 Crossref

Abstract PDF Supplementary Material

Objective
Associations between various metabolic conditions and Parkinson’s disease (PD) have been previously identified in epidemiological studies. We aimed to investigate the causal effect of lipid levels, type 2 diabetes mellitus (T2DM), and body mass index (BMI) on PD in a Korean population via Mendelian randomization (MR).
Methods
Two-sample MR analyses were performed with inverse-variance weighted (IVW), weighted median, and MR-Egger regression approaches. We identified genetic variants associated with lipid concentrations, T2DM, and BMI in publicly available summary statistics, which were either collected from genome-wide association studies (GWASs) or from meta-analyses of GWAS that targeted only Korean individuals or East Asian individuals, including Korean individuals. The outcome dataset was a GWAS on PD performed in a Korean population.
Results
From previous GWASs and meta-analyses, we selected single nucleotide polymorphisms as the instrumental variables. Variants associated with serum levels of low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, and triglycerides, as well as with T2DM and BMI, were selected (n = 11, 19, 17, 89, and 9, respectively). There were no statistically significant causal associations observed between the five exposures and PD using either the IVW, weighted median, or MR-Egger methods (p-values of the IVW method: 0.332, 0.610, 0.634, 0.275, and 0.860, respectively).
Conclusion
This study does not support a clinically relevant causal effect of lipid levels, T2DM, and BMI on PD risk in a Korean population.

Citations

Citations to this article as recorded by

Causal effect of systemic lupus erythematosus on psychiatric disorders: A two-sample Mendelian randomization study
Hua Xue, Shuangjuan Liu, Li Zeng, Wenhui Fan
Journal of Affective Disorders.2024; 347: 422. CrossRef
Causal relationship between diabetes mellitus, glycemic traits and Parkinson’s disease: a multivariable mendelian randomization analysis
Qitong Wang, Benchi Cai, Lifan Zhong, Jitrawadee Intirach, Tao Chen
Diabetology & Metabolic Syndrome.2024;[Epub] CrossRef
Association of Body Mass Index and Parkinson Disease
Cloé Domenighetti, Pierre-Emmanuel Sugier, Ashwin Ashok Kumar Sreelatha, Claudia Schulte, Sandeep Grover, Berta Portugal, Pei-Chen Lee, Patrick May, Dheeraj Bobbili, Milena Radivojkov Blagojevic, Peter Lichtner, Andrew B. Singleton, Dena Hernandez, Connor
Neurology.2024;[Epub] CrossRef
Causal association between common rheumatic diseases and arrhythmia: a Mendelian randomization study
Yuchen Zhang, Ling Tang, Ke Zhang, Xinai Meng, Tian Liu, Yanjia Chen, Xingfu Huang
Frontiers in Cardiovascular Medicine.2024;[Epub] CrossRef
Unraveling the link: exploring the causal relationship between diabetes, multiple sclerosis, migraine, and Alzheimer’s disease through Mendelian randomization
Hua Xue, Li Zeng, Shuangjuan Liu
Frontiers in Neuroscience.2023;[Epub] CrossRef
Glycated hemoglobin A1c, cerebral small vessel disease burden, and disease severity in Parkinson's disease
Xinxin Ma, Shuhua Li, Fengzhi Liu, Yu Du, Haibo Chen, Wen Su
Annals of Clinical and Translational Neurology.2023; 10(12): 2276. CrossRef

Syringomyelia Manifesting With Pseudodystonia: A Case Report: Yun Su Hwang, Seung Hyun Lee, Sungyang Jo, Sun Ju Chung; J Mov Disord. 2022;15(2):175-177. Published online November 3, 2021; DOI: https://doi.org/10.14802/jmd.21121

5,301 View
279 Download

PDF Supplementary Material

Pseudodystonia and Neuropathic Tremor in a Patient With Monomelic Amyotrophy: Seung Hyun Lee, Yun Su Hwang, Sungyang Jo, Sun Ju Chung; J Mov Disord. 2022;15(2):181-183. Published online March 22, 2022; DOI: https://doi.org/10.14802/jmd.21138

3,136 View
151 Download

PDF Supplementary Material

Therapeutic Effect of Levodopa/Carbidopa/Entacapone on Sleep Disturbance in Patients with Parkinson’s Disease: Kye Won Park, Sungyang Jo, Seung Hyun Lee, Yun Su Hwang, Dagyo Lee, Ho-Sung Ryu, Sun Ju Chung; J Mov Disord. 2020;13(3):205-212. Published online September 9, 2020; DOI: https://doi.org/10.14802/jmd.20055

8,981 View
302 Download
12 Web of Science
14 Crossref

Abstract PDF

Objective
To investigate the efficacy of levodopa/carbidopa/entacapone (LCE) at bedtime for treating sleep disturbance in patients with Parkinson’s disease (PD) with motor fluctuations.
Methods
Participants included 128 PD patients with motor fluctuations. All patients were assessed for motor, nonmotor, and sleep-specific symptoms using the United Parkinson’s Disease Rating Scale (UPDRS), the Korean version of the Nonmotor Symptom Scale, the Parkinson’s Disease Sleep Scale (PDSS), the Epworth Sleepiness Scale, and the Rapid Eye Movement Sleep Behavior Disorder Screening Questionnaire (RBDSQ). We compared the baseline characteristics of patients with sleep disturbance (PDSS score < 120) and those without sleep disturbance (PDSS score ≥ 120). Thirty-nine patients with sleep disturbance who agreed to take LCE at bedtime completed 3-month follow-ups. We analyzed changes in the scores of motor, nonmotor, and sleep symptom scales over the 3 months.
Results
PD patients with sleep disturbance were at more advanced disease stages and had more severe motor, nonmotor, and sleep symptoms than those without sleep disturbance. Patients who took LCE at night showed improvements in motor (UPDRS part III, p = 0.007) and sleep symptoms (total PDSS, p < 0.001). Sleep features that benefitted from LCE included not only nocturnal motor components but also insomnia (PDSS items 2 and 3, p = 0.005 and p < 0.001) and rapid eye movement behavior disorder (PDSS item 6, p = 0.002; and RBDSQ, p < 0.001).
Conclusion
The use of LCE at bedtime may be a useful treatment for sleep disturbance in advanced PD patients with motor fluctuations.

Citations

Citations to this article as recorded by

Diagnosis and treatment of autonomic failure, pain and sleep disturbances in Parkinson’s disease: guideline “Parkinson’s disease” of the German Society of Neurology
Alessandra Fanciulli, Friederike Sixel-Döring, Carsten Buhmann, Florian Krismer, Wiebke Hermann, Christian Winkler, Dirk Woitalla, Wolfgang H. Jost, Mathias Bähr, Jos Becktepe, Daniela Berg, Kathrin Brockmann, Andrés Ceballos-Baumann, Joseph Claßen, Corne
Journal of Neurology.2025;[Epub] CrossRef
Comparison of sleep characteristics between Parkinson's disease with and without freezing of gait: A systematic review
Tracy Milane, Clint Hansen, Mathias Baptiste Correno, Matthias Chardon, Fabio A. Barbieri, Edoardo Bianchini, Nicolas Vuillerme
Sleep Medicine.2024; 114: 24. CrossRef
Sleep and sleep disorders in people with Parkinson's disease
Alex Iranzo, Valerie Cochen De Cock, María Livia Fantini, Laura Pérez-Carbonell, Lynn Marie Trotti
The Lancet Neurology.2024; 23(9): 925. CrossRef
Pharmacokinetics and Dose Proportionality Study of a Novel Antiparkinsonian Agent, a 1H-1,2,4-Triazol-3-ylthio-conjugate of Prottremine
Daria S. Gorina, Anastasiya V. Lastovka, Artem D. Rogachev, Alexandra V. Podturkina, Alla V. Pavlova, Oleg V. Ardashov, Nikolai S. Li-Zhulanov, Tatyana G. Tolstikova, Konstantin P. Volcho, Nariman F. Salakhutdinov
Molecules.2024; 29(18): 4498. CrossRef
Opicapone versus entacapone: Head‐to‐head retrospective data‐based comparison of healthcare resource utilization in people with Parkinson's disease new to catechol‐O‐methyltransferase (COMT) inhibitor treatment
Glynn Harrison‐Jones, Xiaocong Li Marston, Francesca Morgante, K. Ray Chaudhuri, Guillermo Castilla‐Fernández, Valentina Di Foggia
European Journal of Neurology.2023; 30(10): 3132. CrossRef
Management of REM sleep behavior disorder: an American Academy of Sleep Medicine systematic review, meta-analysis, and GRADE assessment
Michael Howell, Alon Y. Avidan, Nancy Foldvary-Schaefer, Roneil G. Malkani, Emmanuel H. During, Joshua P. Roland, Stuart J. McCarter, Rochelle S. Zak, Gerard Carandang, Uzma Kazmi, Kannan Ramar
Journal of Clinical Sleep Medicine.2023; 19(4): 769. CrossRef
The real-life effect of catechol-O-methyltransferase inhibition on non-motor symptoms in levodopa-treated Parkinson’s disease: opicapone versus entacapone
Valentina Leta, Daniel J. van Wamelen, Federico Aureli, Vinod Metta, Dhaval Trivedi, Pietro Cortelli, Carmen Rodriguez-Blazquez, Alexandra Rizos, K. Ray Chaudhuri
Journal of Neural Transmission.2023; 130(7): 925. CrossRef
Non-oral continuous drug delivery based therapies and sleep dysfunction in Parkinson’s disease
P. Tall, M. A. Qamar, L. Batzu, V. Leta, C. Falup-Pecurariu, K. Ray Chaudhuri
Journal of Neural Transmission.2023; 130(11): 1443. CrossRef
Tenuigenin promotes non-rapid eye movement sleep via the GABAA receptor and exerts somnogenic effect in a MPTP mouse model of Parkinson's disease
Di Zhang, Wenjing Zhang, Shumin Deng, Lu Liu, Hua Wei, Fenqin Xue, Hui Yang, Xiaomin Wang, Zheng Fan
Biomedicine & Pharmacotherapy.2023; 165: 115259. CrossRef
Neurological Insights into Sleep Disorders in Parkinson’s Disease
Subramanian Thangaleela, Bhagavathi Sundaram Sivamaruthi, Periyanaina Kesika, Subramanian Mariappan, Subramanian Rashmi, Thiwanya Choeisoongnern, Phakkharawat Sittiprapaporn, Chaiyavat Chaiyasut
Brain Sciences.2023; 13(8): 1202. CrossRef
Real‐world considerations regarding the use of the combination of levodopa, carbidopa, and entacapone (Stalevo®) in Parkinson's disease
Heinz Reichmann
European Journal of Neurology.2023; 30(S2): 15. CrossRef
Clinical profile of levodopa-carbidopa-entacapone intestinal gel infusion in patients with advanced Parkinson’s disease
Karina A. Atanasova-Ivanova, Sonya Ivanova Hristova-Chakmakova, Ivan G. Milanov
Folia Medica.2023; 65(6): 929. CrossRef
The Home-Based Sleep Laboratory
Yael Hanein, Anat Mirelman, Anat Mirelman, E. Ray Dorsey, Patrik Brundin, Bastiaan R. Bloem
Journal of Parkinson's Disease.2021; 11(s1): S71. CrossRef
Shudi Pingchan Decoction combined with repetitive transcranial magnetic stimulation in the treatment of Parkinson’s disease with sleep disorders
Qing Ye, Xiqun Chen, Yuqing Hu, Jie Zhou, Chen Gao, Zhenguo Liu
Traditional Medicine and Modern Medicine.2020; 03(02): 85. CrossRef

Validation of the Korean Version of the Huntington’s Disease Quality of Life Battery for Carers: Hee Jin Chang, Eungseok Oh, Won Tae Yoon, Chan Young Lee, Kyum-Yil Kwon, Yun Su Hwang, Chaewon Shin, Jee-Young Lee; Received October 21, 2024 Accepted December 20, 2024 Published online December 30, 2024; DOI: https://doi.org/10.14802/jmd.24217 [Accepted]

336 View
18 Download

Abstract PDF: Objectives
The Huntington's Disease Quality of Life Battery for Carers (HDQoL-C) evaluates caregiver quality of life. This study aims to develop and validate the Korean version (K-HDQoL-C) to assess the burden on Korean caregivers of HD patients.
Methods
Nineteen HD caregivers (7 females, mean age 55.4±14.6 years) participated. The K-HDQoL-C, a translation of the English version, consisted of demographic information, caring aspects, life satisfaction, and feelings about life. It was administered twice, two weeks apart. Internal consistency was evaluated using Cronbach’s α, and test-retest reliability was assessed with intraclass correlation coefficients. The relationship with the Zarit Burden Interview-12 (ZBI-12) was analyzed.
Results
Internal consistencies of K-HDQoL-C were 0.771 (part 2), 0.938 (part 3), and 0.891 (part 4). Test-retest reliability ranged from 0.908 to 0.936. Part 3 negatively correlated with ZBI-12, and part 4 positively correlated (R = -0.780, 0.923; p < 0.001).
Conclusion
The K-HDQoL-C effectively evaluates challenges faced by HD caregivers, particularly in care aspects and life satisfaction.

Author index