Diagnostic value of extracellular matrix degradation biomarkers in serum from patients with Parkinson's disease.

Parkinson's Disease (PD) is a progressive neurodegenerative condition, which is highly heterogeneous upon diagnosis. Brain extracellular matrix (ECM) accounts for 10-20 % of the total brain volume and is responsible for the physical organization of neuronal and glia cells. Blood-based biomarkers quantifying ECM fragments holds the potential as diagnostic and prognostic biomarkers. Here we evaluated the serum ECM biomarkers C1M, C4M, TUM, SPARC-M and BGM in healthy donors and patients diagnosed with PD. The biomarkers were able to separate between healthy donors and PD patients with an AUC up to 0.926. These pathologically relevant biomarkers could be used as biomarkers in clinical management.