Su Hyeon Ha, Seoyeon Kim, Seungmin Lee, Bora Jin, Kyung Ah Woo, Jung Hwan Shin, Han-Joon Kim
{"title":"Patient-Perceived Response to Medical Treatment for Hemifacial Spasm.","authors":"Su Hyeon Ha, Seoyeon Kim, Seungmin Lee, Bora Jin, Kyung Ah Woo, Jung Hwan Shin, Han-Joon Kim","doi":"10.14802/jmd.25248","DOIUrl":"10.14802/jmd.25248","url":null,"abstract":"","PeriodicalId":16372,"journal":{"name":"Journal of Movement Disorders","volume":" ","pages":"114-116"},"PeriodicalIF":2.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12885650/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145390471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimal Stimulation Sites and Long-Term Efficacy of Pallidal Deep-Brain Stimulation for Patients With Tardive Dystonia.","authors":"Taku Nonaka, Shiro Horisawa, Kilsoo Kim, Masato Murakami, Masahiko Nishitani, Takakazu Kawamata, Takaomi Taira","doi":"10.14802/jmd.25164","DOIUrl":"10.14802/jmd.25164","url":null,"abstract":"<p><strong>Objective: </strong>Globus pallidus internus deep brain stimulation (GPi-DBS) is an established treatment for dystonia, but its specific efficacy for tardive dystonia (TD) remains insufficiently documented. To evaluate the long-term clinical outcomes of GPi-DBS and to identify optimal stimulation sites in patients with medically refractory TD.</p><p><strong>Methods: </strong>We retrospectively analyzed data from 26 patients with TD who underwent bilateral GPi-DBS. Clinical outcomes were assessed using the Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS). Optimal stimulation sites were identified using voxelwise sweet spot analysis.</p><p><strong>Results: </strong>At an average follow-up time of 42 months (range 12-4 months), the mean BFMDRS score improvement was 81.5%. The optimal stimulation sites were located in the posteroventral region of the GPi. Two patients experienced sustained symptom remission after DBS cessation. Complications included device-related infection (n=2), dysarthria (n=4), and gait imbalance (n= 1); no severe permanent complications occurred.</p><p><strong>Conclusion: </strong>GPi-DBS is effective and safe for patients with medically refractory TD, providing significant long-term symptom relief. The optimal stimulation sites were located in the posteroventral GPi, which is consistent with those reported for patients with other dystonia types.</p>","PeriodicalId":16372,"journal":{"name":"Journal of Movement Disorders","volume":" ","pages":"49-57"},"PeriodicalIF":2.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12885642/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145390482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dongje Lee, Hang-Rai Kim, Yu Jeong Park, Yisuh Ahn, Daeho Lee, Jungyeun Lee, Su Jin Chung, Seung Yeon Kim, Yeji Hwang, Ji Young Yun, Jin Whan Cho, Kyum-Yil Kwon, Seong-Beom Koh, Sung Hoon Kang
{"title":"Feasibility and Preliminary Efficacy of Digital Cognitive Training in Parkinson's Disease With Mild Cognitive Impairment: A Pilot Study.","authors":"Dongje Lee, Hang-Rai Kim, Yu Jeong Park, Yisuh Ahn, Daeho Lee, Jungyeun Lee, Su Jin Chung, Seung Yeon Kim, Yeji Hwang, Ji Young Yun, Jin Whan Cho, Kyum-Yil Kwon, Seong-Beom Koh, Sung Hoon Kang","doi":"10.14802/jmd.25135","DOIUrl":"10.14802/jmd.25135","url":null,"abstract":"<p><strong>Objective: </strong>Cognitive impairment is common in patients with Parkinson's disease (PD), and few pharmacological options are available for treating this condition. We evaluated the effects of a digital cognitive training program (SUPERBRAIN), which was previously shown to be effective in populations at risk of Alzheimer's disease, on cognitive function in individuals with PD.</p><p><strong>Methods: </strong>Twenty-three individuals with PD and mild cognitive impairment (PD-MCI) from four clinics were randomized to the intervention (n=16) or control (n=7) groups. The intervention group completed a 12-week, home-based, tablet-based cognitive training program (25-30 min/day, 7 days/week). Cognitive outcomes were assessed using the Seoul Neuropsychological Screening Battery pre- and post-intervention.</p><p><strong>Results: </strong>The adherence rate was 79.36%. The intervention group showed significant improvements in the Seoul Verbal Learning Test (SVLT) delayed recall and the Controlled Oral Word Association Test, while no changes were observed in the control group. Analysis of covariance confirmed greater SVLT improvement in the intervention group (F statistic=7.15, p=0.015, partial η2=0.28).</p><p><strong>Conclusion: </strong>SUPERBRAIN is feasible and can improve cognitive function in individuals with PD-MCI.</p>","PeriodicalId":16372,"journal":{"name":"Journal of Movement Disorders","volume":" ","pages":"76-80"},"PeriodicalIF":2.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12885637/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144957570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dong-Woo Ryu, Sang-Won Yoo, Yoonsang Oh, Joong-Seok Kim
{"title":"Cardiac 123I-Meta-Iodobenzylguanidine Imaging as a Biomarker for Body-First Parkinson's Disease: Linking Peripheral α-Synuclein to Clinical Subtyping.","authors":"Dong-Woo Ryu, Sang-Won Yoo, Yoonsang Oh, Joong-Seok Kim","doi":"10.14802/jmd.25137","DOIUrl":"10.14802/jmd.25137","url":null,"abstract":"<p><p>Recent neuropathological and imaging studies support the concept of \"brain-first vs. body-first\" Parkinson's disease (PD), which is based on the α-synuclein origin site and connectome model. The body-first phenotype is characterized by early involvement of the peripheral autonomic nervous system, particularly the cardiac sympathetic nerves and enteric nerves. 123I-meta-iodobenzylguanidine (123I-MIBG) myocardial scintigraphy is a well-established method for evaluating cardiac sympathetic innervation. This review explores the potential of 123I-MIBG scintigraphy as a biomarker to differentiate the body-first phenotype from the brain-first phenotype. Reduced 123I-MIBG uptake has been observed in idiopathic rapid eye movement (REM) sleep behavior disorder, pure autonomic failure, and incidental Lewy body disease-conditions strongly associated with prodromal or early-stage PD. Postmortem and biopsy evidence indicates α-synuclein accumulation in cardiac nerves and other peripheral sites, which is consistent with bottom-up progression. α-Synuclein seed amplification assays further corroborate the association between the peripheral α-synuclein burden and reduced 123I-MIBG uptake. While 123I-MIBG myocardial scintigraphy is a promising tool, its limitations include cost, limited availability, and potential confounding from underlying cardiac conditions. Nonetheless, early detection of cardiac sympathetic denervation via 123I-MIBG imaging may enhance diagnosis, support subtype classification, and improve the understanding of PD pathogenesis.</p>","PeriodicalId":16372,"journal":{"name":"Journal of Movement Disorders","volume":" ","pages":"1-10"},"PeriodicalIF":2.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12885651/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144775649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rescue Right Pallidotomy and Left Thalamotomy in a Patient With PLA2G6-Associated Refractory Status Dystonicus and Tremor.","authors":"Madathum Kuzhiyil Farsana, Vikram Venkappayya Holla, Swathy Surendran Nair, Nitish Kamble, Pramod Kumar Pal, Dwarakanath Srinivas, Ravi Yadav","doi":"10.14802/jmd.25114","DOIUrl":"10.14802/jmd.25114","url":null,"abstract":"","PeriodicalId":16372,"journal":{"name":"Journal of Movement Disorders","volume":" ","pages":"86-89"},"PeriodicalIF":2.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12885632/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144816895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Madathum Kuzhiyil Farsana, Vikram V Holla, Prashant Phulpagar, Nitish Kamble, Babylakshmi Muthusamy, Ravi Yadav, Pramod Kumar Pal
{"title":"Clinical Profile and Genetic Composition of Patients With Juvenile Parkinsonism From a Single Tertiary Care Center in India.","authors":"Madathum Kuzhiyil Farsana, Vikram V Holla, Prashant Phulpagar, Nitish Kamble, Babylakshmi Muthusamy, Ravi Yadav, Pramod Kumar Pal","doi":"10.14802/jmd.25132","DOIUrl":"10.14802/jmd.25132","url":null,"abstract":"<p><strong>Objective: </strong>: Studies outlining the genetic architecture of Parkinson's disease in India are sparse, and juvenile parkinsonism is underrepresented in the literature. The objective was to study the clinical, therapeutic, and genetic profiles of patients with juvenile parkinsonism and to correlate their phenotypic-genotypic characteristics.</p><p><strong>Methods: </strong>: This retrospective chart review was conducted in patients with suspected genetically mediated juvenile parkinsonism (onset ≤21 years) who underwent genetic testing at a tertiary care center in India from 2015-2024. The available phenotypic-genotypic characteristics were evaluated and compared between Gene (+) and Gene (-) patients.</p><p><strong>Results: </strong>: Forty patients (22 males, 55.0%) with juvenile parkinsonism were included, with mean ages at onset and presentation of 15.85±4.96 years and 26.37±10.11 years, respectively. The mean duration of illness was 10.43±10.49 years. A positive family history was present in 40.0% of the participants, and consanguinity was present in 45%. Bradykinesia was the most common motor symptom (95.0%), and cognitive impairment was the most common nonmotor symptom (17.5%). Pathogenic/likely pathogenic variants were identified in 27 patients (67.5%), with variants in PRKN being the most common (n=8 patients), followed by those in PLA2G6 (n=7 patients). Gene (+) patients had significantly more severe disease with a better levodopa response and more frequent familial consanguinity, oculomotor abnormalities, motor fluctuations, and dyskinesia. Compared with PARK-PRKN patients, PARK-PLA2G6 patients had significantly more dystonia, gaze restriction, and pyramidal signs and more severe disease at presentation, with a lower levodopa equivalent daily dose and fewer motor fluctuations.</p><p><strong>Conclusion: </strong>: More than two-thirds (67.5%) of the juvenile parkinsonism patients in our cohort had an underlying monogenic cause. PARK-PRKN, PARK-PLA2G6, and PARK-SYNJ1 are the common causes of genetically mediated juvenile parkinsonism in India.</p>","PeriodicalId":16372,"journal":{"name":"Journal of Movement Disorders","volume":" ","pages":"19-30"},"PeriodicalIF":2.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12885648/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144883015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Opicapone for the Treatment of Nocturnal Hypokinesia in Patients With Parkinson's Disease: An Open-Label Pilot Clinical Trial.","authors":"Chaewon Shin, Jong-Min Kim","doi":"10.14802/jmd.25250","DOIUrl":"10.14802/jmd.25250","url":null,"abstract":"<p><p>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.</p>","PeriodicalId":16372,"journal":{"name":"Journal of Movement Disorders","volume":" ","pages":"81-85"},"PeriodicalIF":2.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12885641/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145556983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Debjyoti Dhar, Vikram Venkappayya Holla, Sneha Dayanand Kamath, Nitish Kamble, Dwarakanath Srinivas, Ravi Yadav, Pramod Kumar Pal
{"title":"Surgicogenomics in Genetic Parkinson's Disease: A Single-Center Experience From a Tertiary Care Center.","authors":"Debjyoti Dhar, Vikram Venkappayya Holla, Sneha Dayanand Kamath, Nitish Kamble, Dwarakanath Srinivas, Ravi Yadav, Pramod Kumar Pal","doi":"10.14802/jmd.25095","DOIUrl":"10.14802/jmd.25095","url":null,"abstract":"","PeriodicalId":16372,"journal":{"name":"Journal of Movement Disorders","volume":" ","pages":"94-97"},"PeriodicalIF":2.8,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12885644/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145033459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}