Small-molecule PCSK9 inhibition enhances BBB amyloid-β clearance and suppresses microglial inflammation in Alzheimer’s disease models

Impaired amyloid-β (Aβ) clearance and chronic neuroinflammation are central drivers of Alzheimer's disease (AD) progression, yet therapeutic strategies targeting these processes remain limited. Proprotein convertase subtilisin/kexin type 9 (PCSK9) negatively regulates low-density lipoprotein rece…