A more efficient enzyme-linked immunosorbent assay for measurement of alpha-synuclein in cerebrospinal fluid

J Neurosci Methods. 2008 Feb 15;168(1):182-5. doi: 10.1016/j.jneumeth.2007.09.021. Epub 2007 Sep 29.


We describe a modification of a previously described assay for the quantification of alpha-synuclein in naive cerebrospinal fluid, which allows for a more efficient quantification of alpha-synuclein. Detection limit of the assay is 3.8 ng/ml and the assay is linear until 300 ng/ml. Inter-assay and intra-assay coefficients of variation are below 15% in a wide range of concentrations. Mean recovery of the assay is 94%. The 95% upper limit of the reference range (p95) in a group of neurological controls above the age of 45 years is 62 ng/ml. This assay can be routinely applied for quantification of alpha-synuclein in cerebrospinal fluid, but not in serum, and this may serve as a possible biomarker for alpha-synucleinopathies such as Parkinson's disease and multiple system atrophy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Brain Diseases / cerebrospinal fluid
  • Enzyme-Linked Immunosorbent Assay / methods*
  • Female
  • Humans
  • Linear Models
  • Male
  • Middle Aged
  • Reference Values
  • Retrospective Studies
  • Spinal Puncture / methods
  • alpha-Synuclein / cerebrospinal fluid*


  • alpha-Synuclein