ArticleJournal of movement disorders2024
Comparative Olfactory Profiles in Parkinson's Disease and Drug-Induced Parkinsonism.
Article in Journal of movement disorders, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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.
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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.
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Who cites it
5 citing papers in PubMed, 6 citations in OpenAlex.
- Serum Neuronal Extracellular Vesicles for RT-QuIC Assays to Detect Pathological α-Synuclein in Synucleinopathies.Journal of movement disorders · 2026Article
- Peripheral inflammatory markers and clinical phenotypes reflecting the impact of diabetes on Parkinson's disease.Journal of Parkinson's disease · 2025Article
- Alpha-synuclein pathology and Parkinson's disease-related olfactory dysfunctions: an update on preclinical models and therapeutic approaches.Mammalian genome : official journal of the International Mammalian Genome Society · 2025Review
- Case Report: Practical approach to differentiating juvenile parkinsonism of genetic cause and drug-induced parkinsonism in adolescents: a case series and literature review.Frontiers in genetics · 2025Article
- Olfactory dysfunction as potential biomarker in neurodegenerative diseases: a narrative review.Frontiers in neuroscience · 2024Review
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveDrug-induced parkinsonism (DIP) is a frequently encountered diagnostic possibility when considering Parkinson's disease (PD). While olfactory dysfunction is a common clinical feature in PD, the comparison of olfactory function between the two conditions remains insufficient. This study aimed to compare olfactory function, including threshold, discrimination, and identification (TDI) profiles, between PD and DIP.
methodsConsecutive patients with drug-naïve PD (n = 78) or DIP (n = 31) confirmed through dopamine transporter imaging were enrolled in this study. The YSK olfactory function (YOF) test, composed of TDI domains culturally familiar odorants to Koreans, was administered to all patients.
resultsIn the study population, patients with DIP were significantly older than patients with PD. Over 70% of patients in each group had hyposmia or anosmia, and there was no significant difference in the occurrence of olfactory dysfunction between the two groups. In addition, there were no differences in the total YOF score and threshold score between the two groups. Meanwhile, the PD group had a significantly lower discrimination and identification score than the DIP group after adjusting for age, sex, the existence of diabetes, disease duration, and cognitive function.
conclusionThis study demonstrated that detailed olfactory profiles are different in PD and DIP, even though olfactory dysfunction can be observed in both conditions.
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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.