Research revealing how the brain flushes waste named STAT Madness Editors’ Pick
Why it matters: Understanding the glymphatic system could lead to better tools to screen for and combat neurological conditions like Alzheimer's.
- Maiken Nedergaard discovered the glymphatic system, which removes waste from the brain during sleep, and her latest work details the synchronized mechanisms involved.
- Nedergaard's team found that tightly synchronized oscillations of norepinephrine, blood volume, and cerebrospinal fluid work together to flush out dangerous proteins and toxins during deep, non-REM sleep.
- The disruption of this process as we age is thought to contribute to the build-up of malformed proteins and the development of neurodegenerative conditions like Alzheimer’s.
- Some sleep medications can disrupt these natural brain rhythms in mice, potentially impairing the glymphatic cleaning process.
- STAT editors selected Nedergaard's research for its innovation, rigor, and potential impact, while STAT readers crowned a University of Michigan team for their work on abdominal aortic aneurysms as the popular vote champion.
Neuroscientist Maiken Nedergaard's groundbreaking research, named the STAT Madness Editors’ Pick, reveals how the brain's glymphatic system flushes waste during deep sleep through synchronized oscillations of norepinephrine, blood volume, and cerebrospinal fluid. This discovery illuminates the critical role of sleep in preventing neurodegenerative diseases like Alzheimer's and suggests that some sleep medications may disrupt this vital cleaning process.
