Biomarkers in Parkinson's disease

John C. Morgan, Shyamal H. Mehta, Kapil D. Sethi

Research output: Contribution to journalReview articlepeer-review

39 Scopus citations


Biomarkers are objectively measured characteristics that are indicators of normal biological processes, pathogenic processes, or responses to therapeutic interventions. To date, clinical assessment remains the gold standard in the diagnosis of Parkinson's disease (PD) and clinical rating scales are well established as the gold standard for tracking progression of PD. Researchers have identified numerous potential biomarkers that may aid in the differential diagnosis of PD and/or tracking disease progression. Clinical, genetic, blood and cerebrospinal fluid (proteomics, transcriptomics, metabolomics), and neuroimaging biomarkers may provide useful tools in the diagnosis of PD and in measuring disease progression and response to therapies. Some potential biomarkers are inexpensive and do not require much technical expertise, whereas others are expensive or require specialized equipment and technical skills. Many potential biomarkers in PD show great promise; however, they need to be assessed for their sensitivity and specificity over time in large and varied samples of patients with and without PD.

Original languageEnglish (US)
Pages (from-to)423-430
Number of pages8
JournalCurrent neurology and neuroscience reports
Issue number6
StatePublished - Nov 2010


  • 8-hydroxydeoxyguanosine (8-OHdG)
  • Biomarkers
  • Diffusion tensor imaging (DTI)
  • Dopamine transporter
  • Gene expression profiling
  • Glucocerebrosidase
  • Hoehn and Yahr staging
  • Leucine-rich repeat kinase-2 (LRRK2)
  • Metabolomics
  • Metaiodobenzylguanidine (MIBG)
  • Non-Motor Questionnaire and Scale
  • Parkin
  • Parkinson's disease
  • Proteomics
  • REM behavior disorder
  • Radiotracer neuroimaging
  • Transcranial ultrasound
  • Unified Parkinson's Disease Rating Scale (UPDRS)
  • University of Pennsylvania Smell Identification Test (UPSIT)
  • Uric acid
  • α-Synuclein

ASJC Scopus subject areas

  • Neuroscience(all)
  • Clinical Neurology


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