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Dopamine Pathway and Parkinson's Risk Variants Are Associated with Levodopa‐Induced Dyskinesia
Journal article   Open access   Peer reviewed

Dopamine Pathway and Parkinson's Risk Variants Are Associated with Levodopa‐Induced Dyskinesia

Yuri L. Sosero, Sara Bandres-Ciga, Bart Ferwerda, Maria T.P. Tocino, Dìaz R. Belloso, Pilar Gómez-Garre, Johann Faouzi, Pille Taba, Lukas Pavelka, Tainà M. Marques, …
Movement disorders, Early View
2024
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Published (Version of Record)CC BY-NC-ND V4.0 Open Access

Abstract

levodopa-induced dyskinesia Parkinson’s disease dopamine GBA1 LRRK2
Background Levodopa-induced dyskinesia (LID) is a common adverse effect of levodopa, one of the main therapeutics used to treat the motor symptoms of Parkinson's disease (PD). Previous evidence suggests a connection between LID and a disruption of the dopaminergic system as well as genes implicated in PD, including GBA1 and LRRK2. Objectives Our goal was to investigate the effects of genetic variants on risk and time to LID. Methods We performed a genome-wide association study (GWAS) and analyses focused on GBA1 and LRRK2 variants. We also calculated polygenic risk scores (PRS) including risk variants for PD and variants in genes involved in the dopaminergic transmission pathway. To test the influence of genetics on LID risk we used logistic regression, and to examine its impact on time to LID we performed Cox regression including 1612 PD patients with and 3175 without LID. Results We found that GBA1 variants were associated with LID risk (odds ratio [OR] = 1.65; 95% confidence interval [CI], 1.21–2.26; P = 0.0017) and LRRK2 variants with reduced time to LID onset (hazard ratio [HR] = 1.42; 95% CI, 1.09–1.84; P = 0.0098). The fourth quartile of the PD PRS was associated with increased LID risk (ORfourth_quartile = 1.27; 95% CI, 1.03–1.56; P = 0.0210). The third and fourth dopamine pathway PRS quartiles were associated with a reduced time to development of LID (HRthird_quartile = 1.38; 95% CI, 1.07–1.79; P = 0.0128; HRfourth_quartile = 1.38; 95% CI = 1.06–1.78; P = 0.0147). Conclusions This study suggests that variants implicated in PD and in the dopaminergic transmission pathway play a role in the risk/time to develop LID. Further studies will be necessary to examine how these findings can inform clinical care.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
1 Clinical & Life Sciences
1.52 Neurodegenerative Diseases
1.52.67 Parkinson's Disease
Web Of Science research areas
Clinical Neurology
ESI research areas
Neuroscience & Behavior
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