ArticleNeurology international2018
Treatment of Levodopainduced dyskinesia with Vitamin D: A Randomized, double-blind, placebo-controlled trial.
Article in Neurology international, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 4 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 4 syntheses or guidelines pooled it, 19 citations in OpenAlex.
- Effect of vitamin D supplementation on motor symptoms in Parkinson's disease: a meta-analysis of randomized controlled trials.Frontiers in nutrition · 2025Pooled it
- Vitamin D supplementation in later life: a systematic review of efficacy and safety in movement disorders.Frontiers in aging neuroscience · 2024Pooled it
- Dietary Approaches to Improve Efficacy and Control Side Effects of Levodopa Therapy in Parkinson's Disease: A Systematic Review.Advances in nutrition (Bethesda, Md.) · 2021Pooled it
- Vitamin D and Hyperkinetic Movement Disorders: A Systematic Review.Tremor and other hyperkinetic movements (New York, N.Y.) · 2020Pooled it
- Effect of 12-Week BMI-Based Vitamin DInternational journal of molecular sciences · 2023Trial
- The Role of Vitamin D in Parkinson's Disease: Evidence from Serum Concentrations, Supplementation, andNeuroSci · 2025Review
- Article
- Cholecalciferol (VD3) Attenuates L-DOPA-Induced Dyskinesia in Parkinsonian Mice Via Modulation of Microglia and Oxido-Inflammatory Mechanisms.Nigerian journal of physiological sciences : official publication of the Physiological Society of Nigeria · 2022Article
- Vitamin D Status and Parkinson's Disease.Brain sciences · 2022Review
- Molecular Mechanisms and Therapeutic Strategies for Levodopa-Induced Dyskinesia in Parkinson's Disease: A Perspective Through Preclinical and Clinical Evidence.Frontiers in pharmacology · 2022Review
- Serum calcium, magnesium, phosphorus, and vitamin D in benign essential blepharospasm.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2020Article
- A Review of the Relationship Between Vitamin D and Parkinson Disease Symptoms.Frontiers in neurology · 2020Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Dyskinesia refers to any involuntary movement, such as chorea, dystonia, ballism that affect any part of the body. Levodopa-induced dyskinesia is a neurological disorder that afflicts many patients with Parkinson disease usually 5 years after the onset of levodopa therapy and can cause severe disability. The pathophysiology of this dyskinesia is complex and not fully understood. However, the association between vitamin D and Parkinson disease is interesting. The present study was conducted to evaluate the effect of vitamin D on levodopa induced dyskinesia in patients with Parkinson's disease .In this Double blind clinical trial, 120 patients with PD divided into two groups randomly, vitamin D and placebo group. A dose of 1000 IU/d was selected, Demographic information is registered. In the first visit, three variables have been measured which were the duration, severity of dyskinesia and unified Parkinson's disease rating scale (UPDRS). These variables were measured again after 3 months and the data was analyzed using SPSS 22. There are no differences between two groups after 3 months. This study revealed, vitamin D has no effects on improvement of levodopa induced dyskinesia.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.