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The original was posted on /r/science by /u/mvea on 2025-05-25 11:11:36+00:00.

Original Title: Scientists discover new drug that prevents cognitive impairment in Alzheimer’s disease by directly protecting blood-brain barrier (BBB). In mouse models treated with it, BBB stayed completely undamaged. Brains didn’t undergo neurodegeneration and cognition and memory were completely preserved.