Blood test detects Parkinson's early, before symptoms show

A new blood test can detect Parkinson's disease before symptoms appear, potentially revolutionizing early diagnosis and treatment. The test, which analyzes transfer RNA fragments and mitochondrial RNA in the blood, achieved a high accuracy score of 0.86, surpassing current clinical tests. It could allow for timely interventions and improved patient outcomes. Researchers hope this cost-effective test, using PCR technology, will lead to earlier interventions. Further validation is needed to differentiate Parkinson's from other conditions with similar early signs.