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dc.contributor.authorMu, Jesse
dc.contributor.authorChaudhuri, Kallol R
dc.contributor.authorBielza, Concha
dc.contributor.authorPedro-Cuesta, Jesus de 
dc.contributor.authorLarrañaga, Pedro
dc.contributor.authorMartinez-Martin, Pablo
dc.identifier.citationFront Aging Neurosci. 2017 Sep 20;9:301.es_ES
dc.description.abstractParkinson's disease is now considered a complex, multi-peptide, central, and peripheral nervous system disorder with considerable clinical heterogeneity. Non-motor symptoms play a key role in the trajectory of Parkinson's disease, from prodromal premotor to end stages. To understand the clinical heterogeneity of Parkinson's disease, this study used cluster analysis to search for subtypes from a large, multi-center, international, and well-characterized cohort of Parkinson's disease patients across all motor stages, using a combination of cardinal motor features (bradykinesia, rigidity, tremor, axial signs) and, for the first time, specific validated rater-based non-motor symptom scales. Two independent international cohort studies were used: (a) the validation study of the Non-Motor Symptoms Scale (n = 411) and (b) baseline data from the global Non-Motor International Longitudinal Study (n = 540). k-means cluster analyses were performed on the non-motor and motor domains (domains clustering) and the 30 individual non-motor symptoms alone (symptoms clustering), and hierarchical agglomerative clustering was performed to group symptoms together. Four clusters are identified from the domains clustering supporting previous studies: mild, non-motor dominant, motor-dominant, and severe. In addition, six new smaller clusters are identified from the symptoms clustering, each characterized by clinically-relevant non-motor symptoms. The clusters identified in this study present statistical confirmation of the increasingly important role of non-motor symptoms (NMS) in Parkinson's disease heterogeneity and take steps toward subtype-specific treatment packages.es_ES
dc.description.sponsorshipThis study was funded by the Spanish Ministry of Economy and Competitiveness through the Cajal Blue Brain (C080020-09; the Spanish partner of the Blue Brain initiative from École Polytechnique Fédérale de Lausanne) and TIN2016-79684-P projects, the Regional Government of Madrid through the S2013/ICE-2845-CASI-CAM-CM project, the European Union's Horizon 2020 research and innovation programme under grant agreement No. 720270, and the National Institute of Health Research in the UK (UKCRN No: 10084).es_ES
dc.publisherFrontiers Media es_ES
dc.subjectParkinson's diseasees_ES
dc.subjectCluster analysises_ES
dc.subjectMotor symptomses_ES
dc.subjectNon-motor symptomses_ES
dc.titleParkinson's Disease Subtypes Identified from Cluster Analysis of Motor and Non-motor Symptomses_ES
dc.typejournal articlees_ES
dc.rights.licenseAtribución 4.0 Internacional*
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.contributor.funderComunidad de Madrid es_ES
dc.contributor.funderUnión Europea. Comisión Europea. H2020es_ES
dc.contributor.funderNational Institute for Health Research (Reino Unido)es_ES
dc.contributor.funderÉcole Polytechnique Fédérale de Lausannees_ES
dc.identifier.journalFrontiers in Aging Neurosciencees_ES
dc.repisalud.centroISCIII::Centro Nacional de Epidemologíaes_ES
dc.rights.accessRightsopen accesses_ES

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