Three ways of rejuvenating aging brains may work via the same protein
The molecule may be a promising therapy but exactly how it works is unclear
![Side-by-side of stained microscope images showing brains of old mice, where scientists found that age-related inflammation (stained green and yellow) in immune cells was prevalent in untreated mice (left) but was greatly reduced in mice treated with PF4 (right).](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/08/082323_sm_platelet-factor_feat.jpg?fit=1030%2C580&ssl=1)
Inflammation in the brain can happen with age. In the brains of old mice, scientists found that age-related inflammation (stained green and yellow) in immune cells was prevalent in untreated mice (left) but was greatly reduced in mice treated with PF4 (right).
Adam B. Schroer