3 publishers · first seen Tue, 27 Oct 2026 04:02 UTC · updated Mon, 02 Nov 2026 12:10 UTC
A new study by the Netherlands Institute for Neuroscience has found that immature neurons may play a role in protecting some people from developing Alzheimer's symptoms, despite having brain changes associated with the disease. The research focused on individuals over 80 and compared those with Alzheimer's dementia, those without brain pathology, and those with pathology but no symptoms, known as cognitively resilient individuals.
The study found immature neurons in all groups, but their behavior differed: in resilient individuals, these cells showed activity linked to survival, reduced inflammation, and protection against damage. Around 30 percent of older adults with Alzheimer's brain changes do not experience symptoms, and this resilience may be due to how immature neurons support brain function rather than simply replacing lost cells.
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