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Brain Cells Meant to Protect Us May Be Fueling Cognitive Decline
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What Happened?
Research reveals that brain cells, which protect nerve fibers, may contribute to cognitive decline as they become dysfunctional with age. This challenges previous beliefs about their role in brain health.
Key points
- Oligodendrocytes, responsible for myelin production, can become dysfunctional with age.
- Research involved the Lothian Birth Cohort 1936, tracking cognitive abilities from childhood.
- Participants showed varying rates of cognitive decline, with 866 completing tests after age 70.
- Those with greater decline had fewer large nerve fibers and abnormal myelin buildup.
- Lower levels of the protein NRF2 in oligodendrocytes were linked to cognitive decline.
- Existing drugs targeting the NRF2 pathway may offer new treatment strategies.
Key insights
- The findings could shift therapeutic strategies for age-related cognitive decline.
- Existing treatments for other neurological conditions may be adapted for cognitive issues.
- Maintaining oligodendrocyte function may be crucial for preserving cognitive abilities.
Why it matters
Understanding the role of oligodendrocytes could lead to new treatments for cognitive decline in aging populations.
Source
Science Daily
