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Updated: May 20, 2026

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
NMDA receptor genotypes associated with the vulnerability to develop dyskinesia
S A Ivanova1, A J M Loonen, P Pechlivanoglou
1Mental Health Research Institute, Tomsk, Russia.
Genetic variants linked to Huntington
Area of Science:
- Neuroscience
- Genetics
- Pharmacology
Background:
- Dyskinesias are involuntary movements seen in Huntington's disease (HD), levodopa-induced dyskinesia (LID), and tardive dyskinesia (TD).
- Previous research suggested distinct neuronal pathways for dyskinesias in HD, LID, and TD, converging on motor cortex overstimulation.
Purpose of the Study:
- To investigate if N-methyl-D-aspartate receptor gene variants associated with HD dyskinesia onset also predict vulnerability for TD and LID.
Main Methods:
- Genotyping of specific N-methyl-D-aspartate receptor gene variants in patients diagnosed with LID and TD.
Main Results:
- The studied gene variants were dose-dependently associated with susceptibility to LID, not TD.
- This finding contradicts the initial hypothesis regarding TD vulnerability.
Conclusions:
- Levodopa-induced dyskinesia (LID) and tardive dyskinesia (TD) may share underlying neuronal pathways with Huntington's disease (HD) dyskinesia.
- However, TD appears to involve a distinct mechanism compared to LID and HD.
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