Costunolide normalizes neuroinflammation and improves neurogenesis deficits in a mouse model of depression through inhibiting microglial Akt/mTOR/NF-κB pathway.

Summary: Chronic stress is a major trigger for depression, often causing inflammation in the brain that stops new brain cells from growing. In a promising new study using mice, researchers tested a natural compound called Costunolide (COS). They found that COS acts like a cooling agent for the brain's immune system (microglia). By blocking specific inflammatory pathways (Akt/mTOR/NF-κB), Costunolide reduced brain inflammation and restored the production of new brain cells. This treatment successfully reversed depressive behaviors in the stressed mice, suggesting that targeting brain inflammation could be a powerful way to treat depression in humans.