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13th August 2013 - New research
BIOMARKERS FAIL TO DIAGNOSE PARKINSON'S DISEASE
BMC Neurology [2013] Apr 12
[Epub ahead of print] (D.J.McGhee, P.L.Royle, P.A.Thompson,
D.E.Wright, J.P.Zajicek, C.E.Counsell)
Complete abstract
It had previously been assumed that biomarkers could be an effective means
of diagnosing Parkinson's Disease. However, an evaluation of all the methods
assessed suggest that the use of biomarkers is insufficient. A biomarker is a substance used as an indicator of a biological state or
illness.
For more information go to
Biomarkers
A systematic review was undertaken to determine which biomarkers for disease
progression in Parkinson's Disease exist. 183 studies were included. The
sensitivity of the tests was an average of 71%, which is insufficient for
Parkinson's Disease diagnosis. However, the range in sensitivity was between
51% and 86% showing that some of the methods were closer to having a
practical use but were still less accurate than other methods of diagnosing
Parkinson's Disease that are
available. The authors found insufficient evidence to recommend the use of any
biomarker for assessing disease progression in Parkinson's Disease clinical
trials. They believe that this may simply reflect the poor quality of
research in this area. They therefore present a provisional 'roadmap' for
conducting future disease progression biomarker studies and recommend new
quality criteria by which future studies may be judged.
For a printable
version of this article
click here.
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