Blood test to detect Parkinson's disease could lead to earlier treatment

Australian researchers hope discovery can be used to diagnose disorder - now done through process of elimination

Researchers have developed the world's first blood test that can detect the abnormal metabolism of blood cells in people with Parkinson's disease, which means the blood test could be used to diagnose the disorder.

At present the only way to diagnose Parkinson's disease, a degenerative neurological condition, is through ordering a range of tests and scans to rule out other disorders, combined with examining symptoms.