Vibrating mattress helps clear Alzheimer’s protein from the brain — SkimNews
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- Kiviniemi and colleagues recruited 29 adults without diagnosed Alzheimer’s or cognitive issues; participants took a dissolvable under-tongue nitric oxide pill, lay on a gently vibrating mattress for 40 minutes, and took a second pill halfway through.
- Combined treatment raised blood beta-amyloid 42 by 35% on average; Kiviniemi said it appeared to enhance glymphatic clearance from the brain, while Lilius called the acute effect “substantial and very interesting.”
- Brain scans suggested the intervention increased fluid flow along glymphatic channels, probably because brain blood vessels widened and pumped more strongly.
- Component tests found that vibration alone and nitric oxide alone each produced less than half the apparent glymphatic effect of the combination, based on brain scans.
- Brown said the blood increase could reflect slower liver breakdown of beta-amyloid 42 rather than only stronger clearance, and proposed cerebrospinal-fluid markers to measure glymphatic flow more directly.
- Kiviniemi warned that nitric oxide can lower blood pressure and that a pill could cause loss of consciousness in someone with low blood pressure; six of 29 participants experienced nausea or headache, and no placebo was used, leaving expectation as a possible contributor.
- Kiviniemi hopes to test the combination next year in 60 people with mild cognitive impairment or Alzheimer’s, with results possible in the following two years, then run a multi-month study for memory and problem-solving if that goes well.
Why it matters: Kiviniemi’s team has a 35% acute biomarker result from 29 adults and a concrete next step: a 60-person trial in people with mild cognitive impairment or Alzheimer’s next year. If that goes well, a multi-month follow-up would test whether repeated treatment changes memory and problem-solving rather than only producing one-session blood and scan effects.
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