An international study led by the University of Galway in Ireland has revealed that individuals with high vitamin D levels in middle age may have lower levels of tau and amyloid beta proteins, which are associated with Alzheimer's disease, in later years.
An international study led by the University of Galway in Ireland suggests that individuals with high vitamin D levels in middle age may have lower levels of some biological markers associated with Alzheimer's in later years.
The study measured vitamin D levels in the blood of 793 adults with an average age of 39 and no signs of dementia. Participants were followed for approximately 16 years. At the end of this period, brain scans were performed to examine tau and amyloid beta proteins, which are associated with Alzheimer's disease.
The findings revealed that individuals with higher vitamin D levels in middle age may have lower levels of biomarkers associated with Alzheimer's in later life.
Martin David Mulligan, one of the study's authors, stated that high vitamin D levels may play a protective role against tau accumulation in the brain.
However, the researchers emphasized that the results only revealed a correlation and did not definitively prove that vitamin D directly lowers tau levels or reduces the risk of dementia.
The details of the study were published in the journal Neurology Open Access.
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