US study finds major brain cell changes between ages 50 and 75
A US scientific study reveals significant biological changes in brain cells after age 50, linking them to higher risks of Alzheimer’s and neurodegenerative diseases.
Key Takeaways
AIA recent scientific study published in the journal Science has found that the human brain undergoes significant biological changes with age, with these changes becoming particularly evident between the ages of 50 and 75.
The study, conducted by American researchers, analyzed cells from the hippocampus region of the brain. The researchers found that the most notable changes included a decline in certain immune cells and the emergence of cells with inflammatory characteristics.
The findings also indicated that these changes involve disruptions in genome regulation and a decrease in the cells responsible for maintaining the blood-brain barrier, which may contribute to an increased risk of Alzheimer’s disease and other neurodegenerative disorders.
Changes in microglial cells
The researchers also observed significant changes in microglial cells, which are key immune cells in the brain, noting increased markers of inflammatory activity.
The team believes these results could improve understanding of the mechanisms behind brain aging and related diseases, paving the way for future preventive and therapeutic strategies.