Abstract: Methods of treating neuroinflammation in a subject by administering to the subject an agent that inhibits activation of coagulation factor XI (FXI), inhibits the activity of activated FXI (FXIa), or reduces expression of FXI are described. The agent that inhibits activation of FXI can be a monoclonal antibody specific for FXI, such as a monoclonal antibody having the complementarity determining region (CDR) sequences of anti-FXI antibody 14E11. Small molecule inhibitors and antisense compounds directed to FXI or FXIa are also contemplated as agents that inhibit activity of FXIa or reduce expression of FXI. The neuroinflammation in the subject can be associated with any one of a number of different diseases or disorders, such as an autoimmune disease of the central nervous system (CNS) or a neurodegenerative disease.

Abstract: Compositions and methods for detecting various disorders with targeted microbubbles are disclosed. Specifically, microbubbles comprising glycoprotein Ib (GPIb), ligands for VCAM-1, and ligands for P-selectin such as PSGL-1 are disclosed. Also disclosed are methods for using targeted microbubbles to detect cardiovascular disease comprising administering the disclosed microbubbles to a subject and detecting the microbubbles in the vasculature using ultrasound.