1.Opicapone for the Treatment of Nocturnal Hypokinesia in Patients With Parkinson’s Disease: An Open-Label Pilot Clinical Trial
Journal of Movement Disorders 2026;19(1):81-85
Nocturnal hypokinesia (NH) is common in patients with moderate-stage Parkinson’s disease (PD). This open-label, single-arm pilot study aimed to assess the effect of bedtime opicapone administration on NH and to evaluate the clinical utility of the Nocturnal Hypokinesia Questionnaire (NHQ). The primary endpoint was the change in the NHQ score from baseline to week 6. Fifteen patients were included. The mean change in the NHQ score after the 6-week treatment was -0.9 points (95% confidence interval [CI]: -2.4, 0.5; p=0.187), which was not statistically significant. However, NHQ domain 2 (getting out of bed) significantly improved, with a mean change of -0.3 points (95% CI: -0.6, -0.1; p=0.025). The administration of opicapone in patients with PD and NH did not result in a significant improvement in NH, although it was associated with an improvement in the single domain of getting out of bed. Further studies are needed to establish the efficacy of opicapone for treating NH.
2.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
Journal of Movement Disorders 2025;18(2):160-164
Objective:
The Huntington’s Disease Quality of Life Battery for Carers (HDQoL-C) is used to evaluate caregiver quality of life. This study aimed to develop and validate the Korean version of the HDQoL-C (K-HDQoL-C) to assess the burden on Korean caregivers of Huntington’s disease (HD) patients.
Methods:
A total of 19 HD caregivers (7 females, mean age 55.4±14.6 years) participated in this study. 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, 2 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:
The internal consistencies of the K-HDQoL-C were 0.771 (part 2), 0.938 (part 3), and 0.891 (part 4). The test-retest reliability ranged from 0.908 to 0.936. Part 3 was negatively correlated with the ZBI-12, and part 4 was positively correlated with the ZBI-12 (r=-0.780, 0.923; p<0.001).
Conclusion
The K-HDQoL-C effectively evaluates the challenges faced by HD caregivers, particularly in terms of care aspects and life satisfaction.
3.A Practical Guide for Diagnostic Investigations and Special Considerations in Patients With Huntington’s Disease in Korea
Jangsup MOON ; Eungseok OH ; Minkyeong KIM ; Ryul KIM ; Dallah YOO ; Chaewon SHIN ; Jee-Young LEE ; Jong-Min KIM ; Seong-Beom KOH ; Manho KIM ; Beomseok JEON ;
Journal of Movement Disorders 2025;18(1):17-30
This review provides a comprehensive framework for the diagnostic approach and management of Huntington’s disease (HD) tailored to the Korean population. Key topics include genetic counseling, predictive testing, and reproductive options like preimplantation genetic testing. Strategies for assessing disease progression in premanifest HD through laboratory investigations, biofluid, and imaging biomarkers are highlighted. Special considerations for juvenile and late-onset HD, along with associated comorbidities like diabetes mellitus, hypertension, and cardiovascular abnormalities, are discussed. The guide emphasizes personalized symptom management, including pharmacotherapy, physical therapy, and nutritional support, while exploring emerging disease-modifying treatments. A multidisciplinary care model is advocated to improve outcomes for HD patients and caregivers in Korea.
4.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
Journal of Movement Disorders 2025;18(2):160-164
Objective:
The Huntington’s Disease Quality of Life Battery for Carers (HDQoL-C) is used to evaluate caregiver quality of life. This study aimed to develop and validate the Korean version of the HDQoL-C (K-HDQoL-C) to assess the burden on Korean caregivers of Huntington’s disease (HD) patients.
Methods:
A total of 19 HD caregivers (7 females, mean age 55.4±14.6 years) participated in this study. 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, 2 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:
The internal consistencies of the K-HDQoL-C were 0.771 (part 2), 0.938 (part 3), and 0.891 (part 4). The test-retest reliability ranged from 0.908 to 0.936. Part 3 was negatively correlated with the ZBI-12, and part 4 was positively correlated with the ZBI-12 (r=-0.780, 0.923; p<0.001).
Conclusion
The K-HDQoL-C effectively evaluates the challenges faced by HD caregivers, particularly in terms of care aspects and life satisfaction.
5.A Practical Guide for Diagnostic Investigations and Special Considerations in Patients With Huntington’s Disease in Korea
Jangsup MOON ; Eungseok OH ; Minkyeong KIM ; Ryul KIM ; Dallah YOO ; Chaewon SHIN ; Jee-Young LEE ; Jong-Min KIM ; Seong-Beom KOH ; Manho KIM ; Beomseok JEON ;
Journal of Movement Disorders 2025;18(1):17-30
This review provides a comprehensive framework for the diagnostic approach and management of Huntington’s disease (HD) tailored to the Korean population. Key topics include genetic counseling, predictive testing, and reproductive options like preimplantation genetic testing. Strategies for assessing disease progression in premanifest HD through laboratory investigations, biofluid, and imaging biomarkers are highlighted. Special considerations for juvenile and late-onset HD, along with associated comorbidities like diabetes mellitus, hypertension, and cardiovascular abnormalities, are discussed. The guide emphasizes personalized symptom management, including pharmacotherapy, physical therapy, and nutritional support, while exploring emerging disease-modifying treatments. A multidisciplinary care model is advocated to improve outcomes for HD patients and caregivers in Korea.
6.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
Journal of Movement Disorders 2025;18(2):160-164
Objective:
The Huntington’s Disease Quality of Life Battery for Carers (HDQoL-C) is used to evaluate caregiver quality of life. This study aimed to develop and validate the Korean version of the HDQoL-C (K-HDQoL-C) to assess the burden on Korean caregivers of Huntington’s disease (HD) patients.
Methods:
A total of 19 HD caregivers (7 females, mean age 55.4±14.6 years) participated in this study. 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, 2 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:
The internal consistencies of the K-HDQoL-C were 0.771 (part 2), 0.938 (part 3), and 0.891 (part 4). The test-retest reliability ranged from 0.908 to 0.936. Part 3 was negatively correlated with the ZBI-12, and part 4 was positively correlated with the ZBI-12 (r=-0.780, 0.923; p<0.001).
Conclusion
The K-HDQoL-C effectively evaluates the challenges faced by HD caregivers, particularly in terms of care aspects and life satisfaction.
7.A Practical Guide for Diagnostic Investigations and Special Considerations in Patients With Huntington’s Disease in Korea
Jangsup MOON ; Eungseok OH ; Minkyeong KIM ; Ryul KIM ; Dallah YOO ; Chaewon SHIN ; Jee-Young LEE ; Jong-Min KIM ; Seong-Beom KOH ; Manho KIM ; Beomseok JEON ;
Journal of Movement Disorders 2025;18(1):17-30
This review provides a comprehensive framework for the diagnostic approach and management of Huntington’s disease (HD) tailored to the Korean population. Key topics include genetic counseling, predictive testing, and reproductive options like preimplantation genetic testing. Strategies for assessing disease progression in premanifest HD through laboratory investigations, biofluid, and imaging biomarkers are highlighted. Special considerations for juvenile and late-onset HD, along with associated comorbidities like diabetes mellitus, hypertension, and cardiovascular abnormalities, are discussed. The guide emphasizes personalized symptom management, including pharmacotherapy, physical therapy, and nutritional support, while exploring emerging disease-modifying treatments. A multidisciplinary care model is advocated to improve outcomes for HD patients and caregivers in Korea.
8.Multiple autoimmune syndrome in a dog presented with hematologic disease: a rare case report
Jinyoung PARK ; Chaewon SHIN ; Minjeong KANG ; Sumin CHA ; Sung-Lim LEE ; Dong-In JUNG ; DoHyeon YU ; Hyeona BAE
Korean Journal of Veterinary Research 2025;65(2):e11-
Multiple autoimmune syndrome (MAS) refers to the occurrence of three or more autoimmune diseases in a patient. This case describes a 12-year-old neutered male Shih Tzu with fever and neutropenia, previously diagnosed with immune-mediated thrombocytopenia, immune-mediated hemolytic anemia, and inflammatory bowel disease. Blood tests revealed leukopenia and neutropenia, and immune-mediated neutropenia was suspected after ruling out other causes of neutropenia. The dog showed no response to antibiotics, but treatment with prednisolone (2 mg/kg q24h) led to improvement. This case highlights the potential for MASs to occur in dogs and underscores the importance of their recognition in the diagnosis and management of immune-mediated diseases.
9.Doxorubicin-Induced Cardiotoxicity at Non-Cumulative Dose in a Dog with Multicentric Lymphoma
Jihyeon GO ; Seha AHN ; Seongwon HEO ; Seulgi HWANG ; Hayoung RYU ; Jinyoung PARK ; Chaewon SHIN ; Dong-In JUNG ; DoHyeon YU ; Hyeona BAE
Journal of Veterinary Clinics 2025;42(4):190-195
Doxorubicin is an effective chemotherapeutic agent widely used in veterinary oncology, particularly as part of the CHOP protocol for canine lymphoma. Despite its therapeutic benefit, cardiotoxicity remains a serious dose-limiting adverse effect. Although clinically significant cardiotoxicity is typically reported at cumulative doses of 150-240 mg/m 2 in dogs, functional cardiac deterioration has been observed at lower doses, with progression to congestive heart failure rarely reported. This case report describes doxorubicin-induced cardiotoxicity below the established cumulative threshold in a dog with multicentric lymphoma, which presented with overt clinical signs of congestive heart failure, including coughing, syncope, and pleural effusion. The dog also exhibited marked echocardiographic changes, including right atrial enlargement and a reduction in fractional shortening from 33% to 21% over 2 weeks, ultimately resulting in death 53 days after symptom onset. The clinical diagnosis was supported by the temporal relationship with doxorubicin administration and serial cardiac imaging findings. This case highlights that severe cardiotoxicity can occur even below traditionally accepted cumulative thresholds, reinforcing the importance of individualized, ongoing cardiac monitoring and early intervention, regardless of dose.

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