ArticleParkinson's disease2011
Olfactory loss in Parkinson's disease.
Article in Parkinson's disease, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 3 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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
67 citing papers in PubMed, 3 syntheses or guidelines pooled it, 136 citations in OpenAlex.
- Associations between olfactory dysfunction and structural MRI findings in Parkinson's disease: a systematic review.Brain imaging and behavior · 2026Pooled it
- The effects of olfactory stimulation on postural control in adults: A systematic review.PloS one · 2026Pooled it
- Olfactory dysfunction in aging and neurodegenerative diseases.Ageing research reviews · 2021Pooled it
- The Oral-Brain Axis: A Unified Framework Linking Trigeminal Sensorimotor Dysfunction, Chronic Stress, Neuroinflammation, and Neurodegeneration.International journal of molecular sciences · 2026Review
- Neurotoxic Effect of Manganese and Vanadium Co-Exposure in Animal Models of Parkinson's Disease.International journal of molecular sciences · 2026Article
- The role of the caudate nucleus in taste function: a comprehensive narrative review.Frontiers in neuroscience · 2026Review
- Examination of shared gut microbiome signatures in aging and Parkinson's disease.Frontiers in aging neuroscience · 2026Review
- Review
- The modifying effect of mutant LRRK2 on mutant GBA1-associated Parkinson disease.Human molecular genetics · 2025Article
- Redefining Non-Motor Symptoms in Parkinson's Disease.Journal of personalized medicine · 2025Review
- Development of a simplified smell test to identify Parkinson's disease using multiple cohorts, machine learning and item response theory.NPJ Parkinson's disease · 2025Article
- Combined MR Volumetry and T2* Relaxometry Reveals the Olfactory System as an Iron-Dependent Structure Affected by Radiation.Neurology international · 2025Article
- The AROMHA brain health test is a remote olfactory assessment to screen for cognitive impairment.Scientific reports · 2025Article
- Chemosensory Impairments and Their Impact on Nutrition in Parkinson's Disease: A Narrative Literature Review.Nutrients · 2025Review
- Towards universal chemosensory testing: needs, barriers, and opportunities.Chemical senses · 2025Article
- A role for circuitry of the cortical amygdala in excessive alcohol drinking, withdrawal, and alcohol use disorder.Alcohol (Fayetteville, N.Y.) · 2024Review
- Visualizing the human olfactory projection and ancillary structures in a 3D reconstruction.Communications biology · 2024Article
- Impairment of the trans-Golgi-Lysosomal Pathway Accelerates Dopaminergic Neuronal Senescence in LRRK2Aging and disease · 2024Article
- A minimally invasive biomarker for sensitive and accurate diagnosis of Parkinson's disease.Acta neuropathologica communications · 2024Article
- Article
7 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Impairment of olfaction is a characteristic and early feature of Parkinson's disease. Recent data indicate that >95% of patients with Parkinson's disease present with significant olfactory loss. Deficits in the sense of smell may precede clinical motor symptoms by years and can be used to assess the risk for developing Parkinson's disease in otherwise asymptomatic individuals. This paper summarizes the available information about olfactory function in Parkinson's disease, indicating the advantageous use of olfactory probes in early and differential diagnosis.
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.