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DMT Stabilizes Blood–Brain Barrier, Reduces Inflammation in Preclinical Stroke Study

A peer-reviewed paper identifies Sigma-1 receptor signaling in rat and cell models, pointing to translational potential that still requires human evidence.

Overview

  • Researchers from HUN-REN BRC and Semmelweis University report that DMT cut infarct volume and brain swelling in a rat transient middle cerebral artery occlusion model.
  • Treatment restored tight-junction structure and blood–brain barrier function and improved astroglial cell performance in vivo and in vitro.
  • DMT suppressed proinflammatory cytokine release in brain endothelial and peripheral immune cells and dampened microglial activation via the Sigma-1 receptor.
  • The authors frame the compound as a possible adjuvant to limited existing stroke therapies based on its dual vascular and anti-inflammatory actions.
  • Early clinical evaluations of DMT for post-stroke recovery are underway, though dosing, safety, and efficacy in humans remain unproven.