NEW YORK (360Dx) – A new blood test can be as accurate as a spinal fluid test in determining whether symptoms are caused by Parkinson's disease or other similar disorders, a study reported on Wednesday.

Researchers from London and Sweden investigated 504 people and found that a nerve protein called neurofilament light chain protein in blood can discriminate between Parkinson's and atypical parkinsonian disorders (APD) as accurately as concentrations of the same protein in spinal fluid.

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