MDS Abstracts

Abstracts from the International Congress of Parkinson’s and Movement Disorders.

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  • 2026 International Congress

    PPP2R5D Variants in Patients Diagnosed With Parkinson’s Disease. A Large‑Scale Multi‑Cohort Analysis

    I. Keller Sarmiento, R. Bovenzi, V. Quintana, G. Cogan, A. Brice, A. Gajos, M. Bozi, L. Lange, G. Benbir Senel, B. Tserensodnom, H. Kim, M. Marti, A. Dilliott, H. Morris, S. Lim, A. Tan, R. Alcalay, J. Trinh, C. Klein, N. Mencacci (Chicago, USA)

    Objective: To identify individuals with rare pathogenic and potentially pathogenic variants of unknown significance (VUS) in PPP2R5D within large Parkinson’s disease (PD) cohorts, to characterize…
  • 2026 International Congress

    Evaluation of Semantic Space Search Metrics in Phonemic Fluency: Comparison among Basal Ganglia Disorders and Healthy Controls

    S. Kobayashi, Y. Hagiwara, M. Fujimaki, N. Tsutsui, S. Kawaguchi, K. Hasegawa (Tokyo, Japan)

    Objective: Phonemic verbal fluency reflects executive function and involves both within-category lexical retrieval (cluster size) and switching between categories. We compared semantic search behavior in…
  • 2026 International Congress

    Adult-Onset Stereotypies and Cortical Myoclonus: An Unusual Presentation of Cerebral Amyloid Angiopathy

    N. Doan, T. Tran (Ho Chi Minh City, Viet Nam)

    Objective: To report a case of secondary adult-onset stereotypies with cortical myoclonus associated with an underlying neurological disorder. Background: Stereotypies are repetitive, patterned, rhythmic, non–goal-directed…
  • 2026 International Congress

    Neuroprotective Effects of Curcumin on Hippocampal-PPN Circuitry in a Rotenone-Induced Rat Model of Parkinson’s Disease

    L. Darbinyan, L. Hambardzumyan, L. Manukyan, M. Danielyan, K. Karapetyan, K. Simonyan (Yerevan, Armenia)

    Objective: This study investigated the neuroprotective effects of curcumin on the hippocampal-pedunculopontine nucleus (PPN) axis in a rotenone-induced rat model of PD. Background: Parkinson’s disease…
  • 2026 International Congress

    Family Caregivers and eHealth in Parkinson’s Disease: Insights From a Qualitative Study

    H. Johansson, A. Alvariza, B. Leavy (Stockholm, Sweden)

    Objective: To explore family caregivers’ views on the role of eHealth in formal care and in supporting physical activity and exercise for people with Parkinson’s…
  • 2026 International Congress

    Clinical and Autonomic Correlates of Chronic Sialorrhea in Parkinson’s Disease: A Questionnaire-Based Study with Cluster Analysis of Autonomic and Dysphagia Burden

    S. Okusa, R. Okochi, Y. Sakai, T. Nukariya, Y. Nihei, J. Nakahara, M. Seki (Tokyo, Japan)

    Objective: To examine factors associated with drooling in patients with Parkinson’s disease (PD), patient awareness and perceptions of botulinum toxin therapy, and the relative contributions…
  • 2026 International Congress

    Therapeutic Efficacy of a Next-Generation 16-Contact Directional Deep Brain Stimulation System in Parkinson’s Disease

    F. Morgante, C. Matthies, S. Vinke, R. Schuurman, V. Visser-Vandewalle, A. Gharabaghi, V. Coenen, J. Fitzgerald, D. Pedrosa, A. Kühn, C. Mertz, L. Chen, R. Shivacharan, E. Goldberg (London, United Kingdom)

    Objective: We assessed the clinical efficacy and safety of a novel deep brain stimulation (DBS) system equipped with 16-contact directional leads in improving motor symptoms…
  • 2026 International Congress

    Video-Based Gait Analysis for Objective Assessment of Motor Severity and Surgical Outcome in Parkinson’s Disease: A Scalable Alternative to Subjective Rating

    Y. Samanci, E. Yildirim, B. Samanci, G. Kenangil, AF. Cangi, A. Zirh (Istanbul, Turkey)

    Objective: To evaluate the accuracy of a gait-focused video analysis model in predicting clinical scores and post-surgical improvement in Parkinson’s disease (PD) Background: The MDS-UPDRS…
  • 2026 International Congress

    Genetically proven Juvenile-Onset Niemann–Pick Disease Type C Presenting with Dystonia- Ataxia syndrome.

    A. Ranjan, A. Kumar, A. -, N. Sinha, A. Kumar, P. Anand (Patna, India)

    Objective: We present a case  Juvenile-Onset Niemann–Pick Disease Type C (NPC) who Presented to us with progressive Dystonia- Ataxia syndrome. Background: Niemann–Pick disease type C…
  • 2026 International Congress

    Progressive Lifelong Chorea with Spastic Paraparese and Cerebellar Ataxia Associated with Two Heterozygous Variants in the SYNE1 Gene: A Case Report

    I. Sarac, H. Sarac, F. Borovecki, N. Henigsberg (Zagreb, Croatia)

    Objective: To report a case harboring two different heterozygousSYNE1 variants whose combined effect is suspected tounderlie a complex neurogenetic phenotype Background: SYNE1 encodes nesprin-1, one…
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