The DOI matches its Crossref record; 156 of the 157 references it cites were found in a registry or an index.
Parkinson's disease: clinical features and diagnosis
Open accessAbstract
OBJECTIVE: Parkinson's disease (PD) is a progressive neurological disorder characterised by a large number of motor and non-motor features that can impact on function to a variable degree. This review describes the clinical characteristics of PD with emphasis on those features that differentiate the disease from other parkinsonian disorders. METHODS: A MedLine search was performed to identify studies that assess the clinical characteristics of PD. Search terms included "Parkinson's disease", "diagnosis" and "signs and symptoms". RESULTS: Because there is no definitive test for the diagnosis of PD, the disease must be diagnosed based on clinical criteria. Rest tremor, bradykinesia, rigidity and loss of postural reflexes are generally considered the cardinal signs of PD. The presence and specific presentation of these features are used to differentiate PD from related parkinsonian disorders. Other clinical features include secondary motor symptoms (eg, hypomimia, dysarthria, dysphagia, sialorrhoea, micrographia, shuffling gait, festination, freezing, dystonia, glabellar reflexes), non-motor symptoms (eg, autonomic dysfunction, cognitive/neurobehavioral abnormalities, sleep disorders and sensory abnormalities such as anosmia, paresthesias and pain). Absence of rest tremor, early occurrence of gait difficulty, postural instability, dementia, hallucinations, and the presence of dysautonomia, ophthalmoparesis, ataxia and other atypical features, coupled with poor or no response to levodopa, suggest diagnoses other than PD. CONCLUSIONS: A thorough understanding of the broad spectrum of clinical manifestations of PD is essential to the proper diagnosis of the disease. Genetic mutations or variants, neuroimaging abnormalities and other tests are potential biomarkers that may improve diagnosis and allow the identification of persons at risk.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
The source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Most medical diagnoses rely on standardized guidelines [23, 26, 60].”
From Understanding the Effect of Counterfactual Explanations on Trust and Reliance on AI for Human-AI Collaborative Clinical Decision Making (2023) · cites this paper as [26]
Experimental — accuracy not yet measuredThe source backs part of the claim, not all of it — or backs it for a different population, condition or comparison.
In the citing paper
“Resting tremor that occurs in a fully supported arm serves as an important symptom in differentiating PD from ET in clinical diagnosis (Jankovic, 2008).”
From A Novel Posture for Better Differentiation Between Parkinson's Tremor and Essential Tremor (2018) · cites this paper as Jankovic, 2008
Experimental — accuracy not yet measuredThe cited source says what the claim attributes to it.
In the citing paper
“Around 80% have limb tremor, most commonly a resting pill-rolling type of tremor of the hands.”
From The clinical symptoms of Parkinson's disease. (2016) · cites this paper as Jankovic 2008
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
The relevance of the Lewy body to the pathogenesis of idiopathic Parkinson's disease.
Gibb, W. R., & Lees, A. J. (1988) · Journal of Neurology, Neurosurgery & Psychiatry · doi:10.1136/jnnp.51.6.745 · Cited by 3,481
Parkinson, J. (2002) · Journal of Neuropsychiatry · doi:10.1176/jnp.14.2.223 · Cited by 2,856
Diagnostic Criteria for Parkinson Disease
Gelb, D. J., Oliver, E., & Gilman, S. (1999) · Archives of Neurology · doi:10.1001/archneur.56.1.33 · Cited by 2,822
Dopamine neuron systems in the brain: An update
Björklund, A., & Dunnett, S. B. (2007) · Trends in Neurosciences · doi:10.1016/j.tins.2007.03.006 · Cited by 1,777
Goetz, C. G., Fahn, S., Martínez‐Martín, P., Poewe, W. H., Sampaio, C., Stebbins, G. T., Stern, M. B., Tilley, B. C., Dodel, R. C., Dubois, B., et al. (2006) · Movement Disorders · doi:10.1002/mds.21198 · Cited by 1,443
Self-citationHughes, A. J., Ben-Shlomo, Y., Daniel, S. E., & Lees, A. J. (1992) · Neurology · doi:10.1212/wnl.42.6.1142 · Cited by 1,313
Bloem, B. R., Hausdorff, J. M., Visser, J. E., & Giladi, N. (2004) · Movement Disorders · doi:10.1002/mds.20115 · Cited by 1,298
Modification of Parkinsonism — Chronic Treatment with L-Dopa
Cotzias, G. C., Papavasiliou, P. S., & Gellene, R. A. (1969) · New England Journal of Medicine · doi:10.1056/nejm196902132800701 · Cited by 1,287
Schenck, C. H., Bundlie, S. R., & Mahowald, M. W. (1996) · Neurology · doi:10.1212/wnl.46.2.388 · Cited by 1,083
Sydney multicenter study of Parkinson's disease: Non‐L‐dopa–responsive problems dominate at 15 years
Hely, M. A., Morris, J. G. L., Reid, W. G. J., & Trafficante, R. (2005) · Movement Disorders · doi:10.1002/mds.20324 · Cited by 1,050
Research works printed but not linked: 6
- [41]41. Stamey WP, Jankovic J. Shoulder pain in Parkinson's disease. Mov Disord 2007;22:S247-8.
- [50]50. Djaldetti R, Mosberg-Galili R, Sroka H, et al. Camptocormia (bent spine) in patients with Parkinson's disease-characterization and possible pathogenesis of an unusual phenomenon. Mov Disord 1999;14:443-7.
- [53]53. Wenning GK, Ebersbach G, Verny M, et al. Progression of falls in postmortem- confirmed parkinsonian disorders. Mov Disord 1999;14:947-50.
- [57]57. Koller WC, Glatt S, Vetere-Overfield B, et al. Falls and Parkinson's disease. Clin Neuropharmacol 1989;12:98-105.
- [68]68. Marchese R, Diverio M, Zucchi F, et al. The role of sensory cues in the rehabilitation of parkinsonian patients: a comparison of two physical therapy protocols. Mov Disord 2000;15:879-83.
- [75]75. Wu J, Sitburana O, Jankovic J. The specificity and sensitivity of ''applause sign'' in differentiating PSP and other parkinsonian syndromes. Mov Disord 2007;22:S254-5.
Cited by
Sorted by citations
Challenges in the diagnosis of Parkinson's disease
Tolosa, E., Garrido, A., Scholz, S. W., & Poewe, W. (2021) · The Lancet Neurology · doi:10.1016/s1474-4422(21)00030-2 · Cited by 1,874
The clinical symptoms of Parkinson's disease.
Sveinbjornsdottir, S. (2016) · Journal of Neurochemistry · doi:10.1111/jnc.13691 · Cited by 1,410
Parkinson’s disease: etiopathogenesis and treatment
Jankovic, J. J., & Tan, E. K. (2020) · Journal of Neurology Neurosurgery & Psychiatry · doi:10.1136/jnnp-2019-322338 · Cited by 1,273
Self-citationAutophagy and apoptosis dysfunction in neurodegenerative disorders
Ghavami, S., Shojaei, S., Yeganeh, B., Ande, S. R., Jangamreddy, J. R., Mehrpour, M., Christoffersson, J., Chaabane, W., Moghadam, A. R., Kashani, H. H., et al. (2014) · Progress in Neurobiology · doi:10.1016/j.pneurobio.2013.10.004 · Cited by 1,039
“Nonmotoric symptoms include cognitive impairment, depression and sleep disorders (Jankovic, 2008).”
Regulation of pyruvate metabolism and human disease
Gray, L. R., Tompkins, S. C., & Taylor, E. B. (2013) · Cellular and Molecular Life Sciences · doi:10.1007/s00018-013-1539-2 · Cited by 983
“The loss of these neurons leads to significant motor and non-motor neurological dysfunction that define the clinical course of Parkinson’s disease [219].”
Background
Metadata
- Authors
- Jankovic, J.
- Affiliations
- Baylor College of Medicine (US)
- Corresponding author
- Jankovic, J
- ORCID
- Jankovic, J
- Venue
- Journal of Neurology, Neurosurgery & Psychiatry
- Publisher
- BMJ
- Published
- 2008-04-01
- Volume
- 79
- Issue
- 4
- Pages
- 368-376
- ISSN
- 0022-3050 (ISSN-L)
- OpenAlex
- W2145954079
- Cited by
- 5,720
- References
- 157
- Citations by year
- 2026: 307 · 2025: 455 · 2024: 503 · 2023: 422 · 2022: 424 · 2021: 444 · 2020: 455 · 2019: 405 · 2018: 349 · 2017: 323 · 2016: 324 · 2015: 298 · 2014: 257 · 2013: 232 · 2012: 184
- FWCI
- 15.94
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Neurology Neurosurgery & Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Parkinson Foundation
- Parkinsonfonden
- Topics
- Health Sciences › Medicine › Clinical Neurology › Parkinson's Disease Mechanisms and Treatments
- Health Sciences › Medicine › Clinical Neurology › Deep Brain Stimulation and Movement Disorders
- Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
- Keywords
- Parkinson's disease, clinical features, diagnosis, parkinsonism, resting tremor, bradykinesia, rigidity, postural instability, non-motor symptoms, autonomic dysfunction, levodopa response, differential diagnosis, biomarkers, genetic mutations, neuroimaging
- MeSH terms
- Diagnosis, Differential, Humans, Neurologic Examination, Parkinson Disease, Parkinsonian Disorders
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review