When compared with theExosome AD, the expressions of protein C inhibitor(PCI), von Willebrand Factor (vWF), urokinase typeplasminogen activator (uPA), plasminogen activator(tPA), complement regulatory protein C1qrs, andhuman mannan-binding lectin-associated serineprotease 1/2 (MASP1/2) in the Exosome UC weresignificantly upregulated. This evidence concerns the gene SERPINA5 and Alzheimer disease.