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  "path": "/news/2026-05-brain-barrier-protein-flush-excess.html",
  "publishedAt": "2026-05-06T16:40:04.000Z",
  "site": "https://medicalxpress.com",
  "textContent": "Manganese is not a metal most people think much about. Unlike lead or mercury, it has a benign reputation. Small amounts of manganese power enzymes, metabolize nutrients and keep the brain running smoothly. But it's toxic to the brain in excess, producing tremors, muscle stiffness and cognitive decline.",
  "title": "Brain barrier protein helps flush excess manganese into blood, mouse study finds"
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