Electronic profiling of neuronal extracellular vesicles enables early prediction of Parkinson's disease.

Electronic profiling of neuronal extracellular vesicles detects Parkinson's disease with 90.9% accuracy using blood-based α-Syn proteoforms.

• Why it matters: Early diagnosis of Parkinson's disease is crucial for effective intervention, but current blood tests struggle with low sensitivity due to peripheral α-Syn background.
• What they did: An organic electrochemical transistor-based assay was developed to simultaneously measure total, aggregated, and phosphorylated α-Syn in serum neuronal EVs, achieving femtomolar sensitivity in clinical samples.
• The result: The assay accurately distinguished PD patients from controls, enabling minimally invasive early diagnosis and opening avenues for timely therapeutic intervention.