Stroke Breakthrough: Nasal Spray Protects Brain Cells

A groundbreaking nasal spray developed by scientists in Hong Kong offers immediate protection for brain cells after a stroke. This innovative "Nanopowder" spray contains brain-protective drugs in ultra-small inhalable powders.

Upon inhalation, the spray deposits in the nasal cavity and separates into nanoparticles. These particles travel directly to the brain, bypassing the blood-brain barrier. This direct delivery mechanism is crucial for effective neuroprotection, overcoming a major hurdle in central nervous system drug development.

Administering the spray within 30 minutes of stroke onset has demonstrated the potential to reduce brain tissue death by over 80%. Researchers indicate this breakthrough could serve as an "emergency rescue tool" in prehospital settings, buying valuable time for subsequent medical interventions and potentially preserving neurological function.