Cited by 1,874Parkinson's Disease Mechanisms and TreatmentsDementia and Cognitive Impairment ResearchNeurological disorders and treatments

Challenges in the diagnosis of Parkinson's disease

Open access
Tolosa, Eduardo, Garrido, Alicia, Scholz, Sonja W, Poewe, Werner·2021·The Lancet Neurology

Abstract

Parkinson's disease is the second most common neurodegenerative disease and its prevalence has been projected to double over the next 30 years. An accurate diagnosis of Parkinson's disease remains challenging and the characterisation of the earliest stages of the disease is ongoing. Recent developments over the past 5 years include the validation of clinical diagnostic criteria, the introduction and testing of research criteria for prodromal Parkinson's disease, and the identification of genetic subtypes and a growing number of genetic variants associated with risk of Parkinson's disease. Substantial progress has been made in the development of diagnostic biomarkers, and genetic and imaging tests are already part of routine protocols in clinical practice, while novel tissue and fluid markers are under investigation. Parkinson's disease is evolving from a clinical to a biomarker-supported diagnostic entity, for which earlier identification is possible, different subtypes with diverse prognosis are recognised, and novel disease-modifying treatments are in development.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/s1474-4422(21)00030-2

Cites

8 of 8 references verified0 citation errors · 0 not checkable

Statistics

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.

A few free checks a day · papers already verified open instantly · results are public

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?

  • CNS diseases include neurodegenerative disorders such as Alzheimer's disease and Parkinson's disease, as well as traumatic brain injuries and spinal cord injuries.

    “The diseases encompass various severe conditions, including neurodegenerative disorders like Alzheimer’s disease (AD) [3, 4] and Parkinson’s disease (PD) [5, 6], as well as traumatic brain injuries (TBI) [7] and spinal cord injuries (SCI) [8].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 96

  1. [2]Dorsey ER, Sherer T, Okun MS, Bloem BR. The Emerging Evidence of the Parkinson Pandemic. J Parkinsons Dis. 2018; 8(s1): S3– S8. doi: 10.3233/JPD-181474 30584159 PMC6311367 · DOI
  2. [3]Braak H, Del Tredici K, Bratzke H, Hamm-Clement J, Sandmann-Keil D, Rüb U. Staging of the intracerebral inclusion body pathology associated with idiopathic Parkinson’s disease (preclinical and clinical stages). J Neurol. 2002; 249 Suppl 3: III/1– III/5. doi: 10.1007/s00415-002-1301-4 12528692 · DOI
  3. [4]Steiner JA, Quansah E, Brundin P. The concept of alpha-synuclein as a prion-like protein: ten years after. Cell Tissue Res. 2018 Jul; 373(1): 161– 173. doi: 10.1007/s00441-018-2814-1. Epub 2018 Feb 26. PMID: 29480459; PMCID: PMC6541204. 29480459 PMC6541204 · DOI · Paper page
  4. [5]Blauwendraat C, Nalls MA, Singleton AB. The genetic architecture of Parkinson’s disease. Lancet Neurol. 2020; 19(2): 170– 178. doi: 10.1016/S1474-4422(19)30287-X 31521533 PMC8972299 · DOI · Paper page
  5. [6]Kalia LV, Lang AE. Parkinson’s disease. Lancet. 2015; 386(9996): 896– 912. doi: 10.1016/S0140-6736(14)61393-3 25904081 · DOI
  6. [7]Poewe W, Seppi K, Tanner CM, Parkinson disease. Nat Rev Dis Primers. 2017; 3: 17013. Published 2017 Mar 23. doi: 10.1038/nrdp.2017.13 28332488 · DOI · Paper page
  7. [8]Rajput AH, Rajput A. Accuracy of Parkinson disease diagnosis unchanged in 2 decades. Neurology. 2014; 83(5): 386– 387. doi: 10.1212/WNL.0000000000000653 24975858 · DOI
  8. [9]Tolosa E, Gaig C, Santamaría J, Compta Y. Diagnosis and the premotor phase of Parkinson disease. Neurology. 2009; 72(7 Suppl): S12– S20. doi: 10.1212/WNL.0b013e318198db11 19221308 · DOI
  9. [10]Mahlknecht P, Seppi K, Poewe W. The Concept of Prodromal Parkinson’s Disease. J Parkinsons Dis. 2015; 5(4): 681– 697. doi: 10.3233/JPD-150685 26485429 PMC4927924 · DOI
  10. [11]Parkinson’s disease subtypes: lost in translation? Marras C, Lang A. J Neurol Neurosurg Psychiatry. 2013 Apr; 84(4): 409– 15. doi: 10.1136/jnnp-2012-303455. Epub 2012 Sep 5. PMID: 22952329 Review. 22952329 · DOI
  11. [12]Fereshtehnejad SM, Zeighami Y, Dagher A, Postuma RB. Clinical criteria for subtyping Parkinson’s disease: biomarkers and longitudinal progression. Brain. 2017; 140(7): 1959– 1976. doi: 10.1093/brain/awx118 28549077 · DOI
  12. [13]Faghri F, Hashemi SH, Leonard H, Predicting onset, progression, and clinical subtypes of Parkinson disease using machine learning. Preprint: doi: 10.1101/338913. · DOI
  13. [14]Poewe W, Seppi K, Marini K, Mahlknecht P. New hopes for disease modification in Parkinson’s Disease. Neuropharmacology. 2020; 171: 108085. doi: 10.1016/j.neuropharm.2020.108085 32298705 · DOI
  14. [15]Tolosa E, Vila M, Klein C, Rascol O. LRRK2 in Parkinson disease: challenges of clinical trials. Nat Rev Neurol. 2020; 16(2): 97– 107. doi: 10.1038/s41582-019-0301-2 31980808 · DOI
  15. [17]Gelpi E, Navarro-Otano J, Tolosa E Multiple organ involvement by alpha-synuclein pathology in Lewy body disorders. Mov Disord. 2014 Jul; 29(8): 1010– 8. doi: 10.1002/mds.25776. Epub 2014 Jan 2. PMID: 24395122. 24395122 · DOI · Paper page
  16. [18]Schapira AHV, Chaudhuri KR, Jenner P. Non-motor features of Parkinson disease. Nat Rev Neurosci. 2017; 18(8): 509. doi: 10.1038/nrn.2017.91 28720825 · DOI
  17. [19]Pont-Sunyer C, Hotter A, Gaig C, The onset of nonmotor symptoms in Parkinson’s disease (the ONSET PD study). Mov Disord. 2015; 30(2): 229– 237. doi: 10.1002/mds.26077 25449044 · DOI · Paper page
  18. [20]Zis P, Martinez-Martin P, Sauerbier A, Non-motor symptoms burden in treated and untreated early Parkinson’s disease patients: argument for non-motor subtypes. Eur J Neurol. 2015 new Aug; 22(8): 1145– 50. doi: 10.1111/ene.12733. Epub 2015 May 15. PMID: 25981492. 25981492 · DOI
  19. [21]Barone P, Erro R, Picillo M. Quality of Life and Nonmotor Symptoms in Parkinson’s Disease. Int Rev Neurobiol. 2017; 133: 499– 516. doi: 10.1016/bs.irn.2017.05.023 28802930 · DOI
  20. [22]Safarpour D, Thibault DP, DeSanto CL, Nursing home and end-of-life care in Parkinson disease. Neurology. 2015; 85(5): 413– 419. doi: 10.1212/WNL.0000000000001715 26138947 PMC4534080 · DOI
  21. [23]Ross GW, Abbott RD, Petrovitch H, Tanner CM, White LR. Pre-motor features of Parkinson’s disease: the Honolulu-Asia Aging Study experience. Parkinsonism Relat Disord. 2012; 18 Suppl 1: S199– S202. doi: 10.1016/S1353-8020(11)70062-1 22166434 · DOI
  22. [24]Siderowf A, Lang AE. Parkinson’s disease: concepts and definitions. Mov Disord. 2012; 27(5): 608– 616. doi: 10.1002/mds.24954 22508279 PMC3335740 · DOI · Paper page
  23. [25]Schrag A, Horsfall L, Walters K, Noyce A, Petersen I. Prediagnostic presentations of Parkinson’s disease in primary care: a case-control study. Lancet Neurol. 2015; 14(1): 57– 64. doi: 10.1016/S1474-4422(14)70287-X 25435387 · DOI · Paper page
  24. [26]Salat D, Noyce AJ, Schrag A, Tolosa E. Challenges of modifying disease progression in prediagnostic Parkinson’s disease. Lancet Neurol. 2016; 15(6): 637– 648. doi: 10.1016/S1474-4422(16)00060-0 26993435 · DOI
  25. [27]Pont-Sunyer C, Tolosa E, Caspell-Garcia C, The prodromal phase of leucine-rich repeat kinase 2-associated Parkinson disease: Clinical and imaging Studies. Mov Disord. 2017; 32(5): 726– 738. doi: 10.1002/mds.26964 28370517 · DOI
  26. [28]Mahlknecht P, Stockner H, Marini K, Midbrain hyperechogenicity, hyposmia, mild parkinsonian signs and risk for incident Parkinson’s disease over 10 years: A prospective population-based study. Parkinsonism Relat Disord. 2020; 70: 51– 54. doi: 10.1016/j.parkreldis.2019.12.008 31864071 · DOI
  27. [29]Fereshtehnejad SM, Postuma RB. Subtypes of Parkinson’s Disease: What Do They Tell Us About Disease Progression?. Curr Neurol Neurosci Rep. 2017; 17(4): 34. doi: 10.1007/s11910-017-0738-x 28324303 · DOI
  28. [30]Schrag A, Ben-Shlomo Y, Brown R, Marsden CD, Quinn N. Young-onset Parkinson’s disease revisited-clinical features, natural history, and mortality. Mov Disord. 1998; 13(6): 885– 894. doi: 10.1002/mds.870130605 9827611 · DOI
  29. [31]Selikhova M, Williams DR, Kempster PA, Holton JL, Revesz T, Lees AJ. A clinico-pathological study of subtypes in Parkinson’s disease. Brain. 2009; 132(Pt 11): 2947– 2957. doi: 10.1093/brain/awp234 19759203 · DOI
  30. [32]Stebbins GT, Goetz CG, Burn DJ, Jankovic J, Khoo TK, Tilley BC. How to identify tremor dominant and postural instability/gait difficulty groups with the movement disorder society unified Parkinson’s disease rating scale: comparison with the unified Parkinson’s disease rating scale. Mov Disord. 2013; 28(5): 668– 670. doi: 10.1002/mds.25383 23408503 · DOI
  31. [33]Simuni T, Caspell-Garcia C, Coffey C, How stable are Parkinson’s disease subtypes in de novo patients: Analysis of the PPMI cohort? Parkinsonism Relat Disord. 2016; 28: 62– 67. doi: 10.1016/j.parkreldis.2016.04.027 27132498 · DOI
  32. [34]Lee JW, Song YS, Kim H, Ku BD, Lee WW. Alteration of Tremor Dominant and Postural Instability Gait Difficulty Subtypes During the Progression of Parkinson’s Disease: Analysis of the PPMI Cohort. Front Neurol. 2019; 10: 471. Published 2019 May 7. doi: 10.3389/fneur.2019.00471 31133973 PMC6514149 · DOI
  33. [35]Mu J, Chaudhuri KR, Bielza C, de Pedro-Cuesta J, Larrañaga P, Martinez-Martin P. Parkinson’s Disease Subtypes Identified from Cluster Analysis of Motor and Non-motor Symptoms. Front Aging Neurosci. 2017; 9: 301. Published 2017 Sep 20. doi: 10.3389/fnagi.2017.00301 28979203 PMC5611404 · DOI
  34. [38]Nalls MA, Blauwendraat C, Vallerga CL, Identification of novel risk loci, causal insights, and heritable risk for Parkinson’s disease: a meta-analysis of genome-wide association studies. Lancet Neurol. 2019; 18(12): 1091– 1102. doi: 10.1016/S1474-4422(19)30320-5 31701892 PMC8422160 · DOI · Paper page
  35. [39]Bandres-Ciga S, Saez-Atienzar S, Kim JJ,; International Parkinson Disease Genomics Consortium. Large-scale pathway specific polygenic risk and transcriptomic community network analysis identifies novel functional pathways in Parkinson disease. Acta Neuropathol. 2020 Sep; 140(3): 341– 358. doi: 10.1007/s00401-020-02181-3. Epub 2020 Jun 29. PMID: 32601912. 32601912 PMC8096770 · DOI
  36. [40]Berardelli A, Wenning GK, Antonini A, EFNS/MDS-ES/ENS [corrected] recommendations for the diagnosis of Parkinson’s disease [published correction appears in Eur J Neurol. 2013 Feb;20(2):406]. Eur J Neurol. 2013; 20(1): 16– 34. doi: 10.1111/ene.12022 23279440 · DOI
  37. [41]Blauwendraat C, Pletnikova O, Geiger JT, Genetic analysis of neurodegenerative diseases in a pathology cohort. Neurobiol Aging 2019; 76: 214.e1–214.e9. doi: 10.1016/j.neurobiolaging.2018.11.007 PMC6391207 30528841 · DOI
  38. [42]Sanchez-Contreras M, Heckman MG, Tacik P, Study of LRRK2 variation in tauopathy: Progressive supranuclear palsy and corticobasal degeneration. Mov Disord. 2017; 32(1): 115– 123. doi: 10.1002/mds.26815 27709685 PMC5269612 · DOI
  39. [43]Sidransky E, Nalls MA, Aasly JO, Multicenter analysis of glucocerebrosidase mutations in Parkinson’s disease. N Engl J Med. 2009; 361(17): 1651– 1661. doi: 10.1056/NEJMoa0901281 19846850 PMC2856322 · DOI · Paper page
  40. [44]Polymeropoulos MH, Lavedan C, Leroy E, Mutation in the alpha-synuclein gene identified in families with Parkinson’s disease. Science. 1997; 276(5321): 2045– 2047. doi: 10.1126/science.276.5321.2045 9197268 · DOI · Paper page
  41. [45]Lesage S, Drouet V, Majounie E, Loss of VPS13C Function in Autosomal-Recessive Parkinsonism Causes Mitochondrial Dysfunction and Increases PINK1/Parkin-Dependent Mitophagy. Am J Hum Genet. 2016; 98(3): 500– 513. doi: 10.1016/j.ajhg.2016.01.014 26942284 PMC4800038 · DOI
  42. [46]Schrag A, Ben-Shlomo Y, Quinn N. How valid is the clinical diagnosis of Parkinson’s disease in the community?. J Neurol Neurosurg Psychiatry. 2002; 73(5): 529– 534. doi: 10.1136/jnnp.73.5.529 12397145 PMC1738115 · DOI
  43. [47]Hughes AJ, Daniel SE, Kilford L, Lees AJ. Accuracy of clinical diagnosis of idiopathic Parkinson’s disease: a clinico-pathological study of 100 cases. J Neurol Neurosurg Psychiatry. 1992; 55(3): 181– 184. doi: 10.1136/jnnp.55.3.181 1564476 PMC1014720 · DOI · Paper page
  44. [48]Rizzo G, Copetti M, Arcuti S, Martino D, Fontana A, Logroscino G. Accuracy of clinical diagnosis of Parkinson disease: A systematic review and meta-analysis. Neurology. 2016; 86(6): 566– 576. doi: 10.1212/WNL.0000000000002350 26764028 · DOI · Paper page
  45. [49]Wenning GK, Litvan I, Tolosa E. Milestones in atypical and secondary Parkinsonisms. Mov Disord. 2011; 26(6): 1083– 1095. doi: 10.1002/mds.23713 21626553 · DOI
  46. [50]Höglinger GU, Respondek G, Stamelou M, Clinical diagnosis of progressive supranuclear palsy: The movement disorder society criteria. Mov Disord. 2017; 32(6): 853– 864. doi: 10.1002/mds.26987 28467028 PMC5516529 · DOI
  47. [51]Adler CH, Beach TG, Hentz JG, Low clinical diagnostic accuracy of early vs advanced Parkinson disease: clinicopathologic study. Neurology. 2014; 83(5): 406– 412. doi: 10.1212/WNL.0000000000000641 24975862 PMC4132570 · DOI
  48. [52]Hughes AJ, Daniel SE, Ben-Shlomo Y, Lees AJ. The accuracy of diagnosis of parkinsonian syndromes in a specialist movement disorder service. Brain. 2002; 125(Pt 4): 861– 870. doi: 10.1093/brain/awf080 11912118 · DOI
  49. [53]Koga S, Aoki N, Uitti RJ, When DLB, PD, and PSP masquerade as MSA: an autopsy study of 134 patients. Neurology. 2015; 85(5): 404– 412. doi: 10.1212/WNL.0000000000001807 26138942 PMC4534078 · DOI
  50. [55]Lees AJ, Hardy J, Revesz T. Parkinson’s disease [published correction appears in Lancet. 2009 Aug 29;374(9691):684]. Lancet. 2009; 373(9680): 2055– 2066. doi: 10.1016/S0140-6736(09)60492-X 19524782 · DOI · Paper page
  51. [56]Postuma RB, Poewe W, Litvan I, Validation of the MDS clinical diagnostic criteria for Parkinson’s disease. Mov Disord. 2018; 33(10): 1601– 1608. doi: 10.1002/mds.27362 30145797 · DOI
  52. [57]Iranzo A, Tolosa E, Gelpi E, Neurodegenerative disease status and post-mortem pathology in idiopathic rapid-eye-movement sleep behaviour disorder: an observational cohort study. Lancet Neurol. 2013; 12(5): 443– 453. doi: 10.1016/S1474-4422(13)70056-5 23562390 · DOI
  53. [58]Dauvilliers Y, Schenck CH, Postuma RB, Iranzo A, Luppi PH, Plazzi G, Montplaisir J, Boeve B. REM sleep behaviour disorder. Nat Rev Dis Primers. 2018 8 30; 4(1): 19. doi: 10.1038/s41572-018-0016-5. PMID: 30166532. 30166532 · DOI
  54. [59]Mahlknecht P, Iranzo A, Högl B, Olfactory dysfunction predicts early transition to a Lewy body disease in idiopathic RBD. Neurology. 2015; 84(7): 654– 658. doi: 10.1212/WNL.0000000000001265 25609758 · DOI
  55. [60]Berg D, Postuma RB, Adler CH, MDS research criteria for prodromal Parkinson’s disease. Mov Disord. 2015; 30(12): 1600– 1611. doi: 10.1002/mds.26431 26474317 · DOI
  56. [61]Heinzel S, Berg D, Gasser T, Update of the MDS research criteria for prodromal Parkinson’s disease. Mov Disord. 2019; 34(10): 1464– 1470. doi: 10.1002/mds.27802 31412427 · DOI
  57. [62]Mahlknecht P, Gasperi A, Djamshidian A, Performance of the Movement Disorders Society criteria for prodromal Parkinson’s disease: A population-based 10-year study. Mov Disord. 2018; 33(3): 405– 413. doi: 10.1002/mds.27281 29436728 · DOI
  58. [63]Pilotto A, Heinzel S, Suenkel U, Application of the movement disorder society prodromal Parkinson’s disease research criteria in 2 independent prospective cohorts. Mov Disord. 2017; 32(7): 1025– 1034. doi: 10.1002/mds.27035 28509336 · DOI
  59. [64]Noyce AJ, Bestwick JP, Silveira-Moriyama L, PREDICT-PD: identifying risk of Parkinson’s disease in the community: methods and baseline results. J Neurol Neurosurg Psychiatry. 2014; 85(1): 31– 37. doi: 10.1136/jnnp-2013-305420 23828833 PMC3888633 · DOI
  60. [65]Noyce AJ, R’Bibo L, Peress L, PREDICT-PD: An online approach to prospectively identify risk indicators of Parkinson’s disease. Mov Disord. 2017; 32(2): 219– 226. doi: 10.1002/mds.26898 28090684 PMC5324558 · DOI
  61. [66]Katzenschlager R, Lees AJ. Olfaction and Parkinson’s syndromes: its role in differential diagnosis. Curr Opin Neurol. 2004; 17(4): 417– 423. doi: 10.1097/01.wco.0000137531.76491.c2 15247536 · DOI
  62. [67]Krismer F, Pinter B, Mueller C, Sniffing the diagnosis: Olfactory testing in neurodegenerative parkinsonism. Parkinsonism Relat Disord. 2017; 35: 36– 41. doi: 10.1016/j.parkreldis.2016.11.010 27890451 · DOI
  63. [68]Ohtsuka C, Sasaki M, Konno K, Changes in substantia nigra and locus coeruleus in patients with early-stage Parkinson’s disease using neuromelanin-sensitive MR imaging. Neurosci Lett. 2013 Apr 29; 541: 93– 8. doi: 10.1016/j.neulet.2013.02.012. Epub 2013 Feb 18. PMID: 23428505. 23428505 · DOI · Paper page
  64. [69]Langkammer C, Schweser F, Krebs N, Quantitative susceptibility mapping (QSM) as a means to measure brain iron? A post mortem validation study. Neuroimage. 2012 Sep; 62(3): 1593– 9. doi: 10.1016/j.neuroimage.2012.05.049. Epub 2012 May 24. PMID: 22634862; PMCID: PMC3413885. 22634862 PMC3413885 · DOI · Paper page
  65. [70]Wang X, Zhang Y, Zhu C, The diagnostic value of SNpc using NM-MRI in Parkinson’s disease: meta-analysis. Neurol Sci. 2019 Dec; 40(12): 2479– 2489. doi: 10.1007/s10072-019-04014-y. Epub 2019 Aug 7. Erratum in: Neurol Sci. 2019 Aug 28;: PMID: 31392640. 31392640 · DOI
  66. [71]Ehrminger M, Latimier A, Pyatigorskaya N The coeruleus/subcoeruleus complex in idiopathic rapid eye movement sleep behaviour disorder. Brain. 2016 Apr; 139(Pt 4): 1180– 8. doi: 10.1093/brain/aww006. Epub 2016 Feb 26. PMID: 26920675. 26920675 · DOI
  67. [72]Murakami Y, Kakeda S, Watanabe K, Usefulness of quantitative susceptibility mapping for the diagnosis of Parkinson disease. AJNR Am J Neuroradiol. 2015 Jun; 36(6): 1102– 8. doi: 10.3174/ajnr.A4260. Epub 2015 Mar 12. PMID: 25767187. 25767187 PMC8013031 · DOI
  68. [73]Takahashi H, Watanabe Y, Tanaka H, Comprehensive MRI quantification of the substantia nigra pars compacta in Parkinson’s disease. Eur J Radiol. 2018 Dec; 109: 48– 56. doi: 10.1016/j.ejrad.2018.06.024. Epub 2018 Oct 28. PMID: 30527311. 30527311 · DOI
  69. [74]Mahlknecht P, Krismer F, Poewe W, Seppi K. Meta-analysis of dorsolateral nigral hyperintensity on magnetic resonance imaging as a marker for Parkinson’s disease. Mov Disord. 2017 Apr; 32(4): 619– 623. doi: 10.1002/mds.26932. Epub 2017 Feb 2. PMID: 28151553. 28151553 · DOI
  70. [75]De Marzi R, Seppi K, Högl B, Loss of dorsolateral nigral hyperintensity on 3.0 tesla susceptibility-weighted imaging in idiopathic rapid eye movement sleep behavior disorder. Ann Neurol. 2016 Jun; 79(6): 1026– 30. doi: 10.1002/ana.24646. Epub 2016 Apr 22. PMID: 27016314. 27016314 · DOI
  71. [76]Planetta PJ, Ofori E, Pasternak O, Free-water imaging in Parkinson’s disease and atypical parkinsonism. Brain. 2016 Feb; 139(Pt 2): 495– 508. doi: 10.1093/brain/awv361. Epub 2015 Dec 24. PMID: 26705348; PMCID: PMC5790142. 26705348 PMC5790142 · DOI
  72. [78]Scherfler C, Göbel G, Müller C, Diagnostic potential of automated subcortical volume segmentation in atypical parkinsonism. Neurology. 2016; 86(13): 1242– 1249. doi: 10.1212/WNL.0000000000002518 26935895 · DOI
  73. [79]Huppertz HJ, Möller L, Südmeyer M, Differentiation of neurodegenerative parkinsonian syndromes by volumetric magnetic resonance imaging analysis and support vector machine classification. Mov Disord. 2016; 31(10): 1506– 1517. doi: 10.1002/mds.26715 27452874 · DOI
  74. [80]Péran P, Barbagallo G, Nemmi F, MRI supervised and unsupervised classification of Parkinson’s disease and multiple system atrophy. Mov Disord. 2018 Apr; 33(4): 600– 608. doi: 10.1002/mds.27307. Epub 2018 Feb 23. PMID: 29473662. 29473662 · DOI
  75. [81]Strafella AP, Bohnen NI, Perlmutter JS, Molecular imaging to track Parkinson’s disease and atypical parkinsonisms: New imaging frontiers. Mov Disord. 2017; 32(2): 181– 192. doi: 10.1002/mds.26907 28150432 · DOI
  76. [82]Scherfler C, Schwarz J, Antonini A, Role of DAT-SPECT in the diagnostic work up of parkinsonism. Mov Disord. 2007; 22(9): 1229– 1238. doi: 10.1002/mds.21505 17486648 · DOI
  77. [83]Matesan M, Gaddikeri S, Longfellow K, Miyaoka R, Elojeimy S, Elman S, Hu SC, Minoshima S, Lewis D. I-123 DaTscan SPECT Brain Imaging in Parkinsonian Syndromes: Utility of the Putamen-to-Caudate Ratio. J Neuroimaging. 2018 Nov; 28(6): 629– 634. doi: 10.1111/jon.12530. Epub 2018 Jun 14. PMID: 29905019. 29905019 · DOI
  78. [84]Meles SK, Renken RJ, Janzen A,; REMPET Study Group. The Metabolic Pattern of Idiopathic REM Sleep Behavior Disorder Reflects Early-Stage Parkinson Disease. J Nucl Med. 2018 Sep; 59(9): 1437– 1444. doi: 10.2967/jnumed.117.202242. Epub 2018 Feb 23. PMID: 29476004. 29476004 · DOI
  79. [85]Helmich RC, Vaillancourt DE, Brooks DJ. The Future of Brain Imaging in Parkinson’s Disease. J Parkinsons Dis. 2018; 8(s1): S47– S51. doi: 10.3233/JPD-181482. PMID: 30584163; PMCID: PMC6311365. 30584163 PMC6311365 · DOI
  80. [86]Donadio V, Incensi A, Leta V, Skin nerve α-synuclein deposits: a biomarker for idiopathic Parkinson disease. Neurology. 2014; 82(15): 1362– 1369. doi: 10.1212/WNL.0000000000000316 24634456 · DOI
  81. [87]Tsukita K, Sakamaki-Tsukita H, Tanaka K, Suenaga T, Takahashi R. Value of in vivo α-synuclein deposits in Parkinson’s disease: A systematic review and meta-analysis. Mov Disord. 2019 Oct; 34(10): 1452– 1463. doi: 10.1002/mds.27794. Epub 2019 Jul 19. PMID: 31322768. 31322768 · DOI
  82. [88]Vilas D, Iranzo A, Tolosa E, Assessment of α-synuclein in submandibular glands of patients with idiopathic rapid-eye-movement sleep behaviour disorder: a case-control study. Lancet Neurol. 2016; 15(7): 708– 718. doi: 10.1016/S1474-4422(16)00080-6 27039162 · DOI
  83. [89]Fairfoul G, McGuire LI, Pal S, Alpha-synuclein RT-QuIC in the CSF of patients with alpha-synucleinopathies. Ann Clin Transl Neurol. 2016; 3(10): 812– 818. Published 2016 Aug 28. doi: 10.1002/acn3.338 27752516 PMC5048391 · DOI · Paper page
  84. [90]Shahnawaz M, Tokuda T, Waragai M, Development of a Biochemical Diagnosis of Parkinson Disease by Detection of α-Synuclein Misfolded Aggregates in Cerebrospinal Fluid. JAMA Neurol. 2017; 74(2): 163– 172. doi: 10.1001/jamaneurol.2016.4547 27918765 · DOI
  85. [91]Rossi M, Candelise N, Ultrasensitive RT-QuIC assay with high sensitivity and specificity for Lewy body-associated synucleinopathies. Acta Neuropathol. 2020 Jul; 140(1): 49– 62. doi: 10.1007/s00401-020-02160-8. Epub 2020 Apr 27. Erratum in: Acta Neuropathol. 2020 Aug;140(2):245. PMID: 32342188; PMCID: PMC7299922. 32342188 PMC7299922 · DOI
  86. [92]van Rumund A, Green AJE, Fairfoul G, Esselink RAJ, Bloem BR, Verbeek MM. α-Synuclein real-time quaking-induced conversion in the cerebrospinal fluid of uncertain cases of parkinsonism. Ann Neurol. 2019 May; 85(5): 777– 781. doi: 10.1002/ana.25447. Epub 2019 Mar 25. PMID: 30801759; PMCID: PMC6593725. 30801759 PMC6593725 · DOI
  87. [93]Wang Z, Becker K, Donadio V, Siedlak S, Skin α-Synuclein Aggregation Seeding Activity as a Novel Biomarker for Parkinson Disease. JAMA Neurol. 2020 Sep 28: e203311. doi: 10.1001/jamaneurol.2020.3311. Epub ahead of print. PMID: 32986090; PMCID: PMC7522783. PMC7522783 32986090 · DOI
  88. [94]Garrido A, Fairfoul G, Tolosa ES, Martí MJ, Green A; Barcelona LRRK2 Study Group. α-synuclein RT-QuIC in cerebrospinal fluid of LRRK2-linked Parkinson’s disease. Ann Clin Transl Neurol. 2019 May 9; 6(6): 1024– 1032. doi: 10.1002/acn3.772. PMID: 31211166; PMCID: PMC6562027. 31211166 PMC6562027 · DOI
  89. [95]Iranzo A MD, Fairfoul G Na Ayudhaya AC Cerebrospinal fluid α-synuclein detection by RT-QuIC in patients with isolated rapid-eye-movement sleep behaviour disorder. Lancet Neurol in press 33609478
  90. [96]Stefani A, Iranzo A, Holzknecht E, Alpha-synuclein seeds in olfactory mucosa of isolated rapid-eye-movement sleep behaviour disorder. Brain 2020, in press. 33855335
  91. [97]Schönecker S, Brendel M, Palleis C, PET Imaging of Astrogliosis and Tau Facilitates Diagnosis of Parkinsonian Syndromes. Front Aging Neurosci. 2019; 11: 249. Published 2019 Sep 11. doi: 10.3389/fnagi.2019.00249 31572166 PMC6749151 · DOI
  92. [98]Hansson O, Janelidze S, Hall S, Blood-based NfL: A biomarker for differential diagnosis of parkinsonian disorder. Neurology. 2017; 88(10): 930– 937. doi: 10.1212/WNL.0000000000003680 28179466 PMC5333515 · DOI · Paper page
  93. [99]Herbert MK, Aerts MB, Beenes M, CSF Neurofilament Light Chain but not FLT3 Ligand Discriminates Parkinsonian Disorders. Front Neurol. 2015; 6: 91. Published 2015 May 5. doi: 10.3389/fneur.2015.00091 25999911 PMC4419719 · DOI
  94. [102]Escott-Price V, International Parkinson’s Disease Genomics C, Nalls MA, Polygenic risk of Parkinson disease is correlated with disease age at onset. Ann Neurol 2015; 77(4): 582– 91. 25773351 PMC4737223
  95. [103]McFarthing K, Buff S, Rafaloff G, Dominey T, Wyse RK, Stott SRW. Parkinson’s Disease Drug Therapies in the Clinical Trial Pipeline: 2020. J Parkinsons Dis. 2020; 10(3): 757– 774. doi: 10.3233/JPD-202128. PMID: 32741777; PMCID: PMC7458531. 32741777 PMC7458531 · DOI
  96. [104]Greenland JC, Williams-Gray CH, Barker RA. The clinical heterogeneity of Parkinson’s disease and its therapeutic implications. Eur J Neurosci. 2019; 49(3): 328– 338. doi: 10.1111/ejn.14094. 30059179 · DOI

Cited by

Sorted by citations

Authors
Tolosa, E., Garrido, A., Scholz, S. W., & Poewe, W.
Affiliations
  • Biomedical Research Networking Center on Neurodegenerative Diseases (ES)
  • National Institutes of Health (US)
  • Innsbruck Medical University (AT)
Corresponding author
Tolosa, Eduardo
Venue
The Lancet Neurology
Publisher
Elsevier BV
Published
2021-05
Volume
20
Issue
5
Pages
385-397
ISSN
1474-4422 (ISSN-L)
OpenAlex
W3154237080
Cited by
1,874
References
8
Citations by year
2026: 403 · 2025: 584 · 2024: 467 · 2023: 299 · 2022: 105 · 2021: 16
FWCI
28.49
Type
journal article
Language
en
Open access
Locations
  • The Lancet Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (ZIANS003154)
Topics
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Health Sciences › Medicine › Neurology › Neurological disorders and treatments
Keywords
Parkinson's disease, diagnosis, prodromal Parkinson's disease, clinical criteria, genetic subtypes, genetic risk variants, diagnostic biomarkers, neuroimaging, cerebrospinal fluid biomarkers, tissue biomarkers, early detection, disease-modifying therapy
MeSH terms
Diagnosis, Differential, Humans, Magnetic Resonance Imaging, Parkinson Disease, Disease Progression, Symptom Assessment

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