A study showing that vitamin D deficiency is directly related to the risk of dementia is noteworthy.
The Australian daily The Australian Internet version published on the 15th that a research team led by Professor Elena Hipponen, director of the Center for Precision Health at the University of South Australia, analyzed the genetic analysis data of 294,514 UK Biobanks using the Mendelian random analysis method. As a result, it was reported that this fact was revealed.
The study found that people with blood levels of vitamin D of 25 nmol/L had a 54% higher risk of dementia than people with 50 nmol/L. It was analyzed that 17% of dementia patients could be prevented if the normal level (50 nmol/L) was reached.
People deficient in vitamin D have smaller brain volumes and a higher risk of dementia and stroke. It is possible that vitamin D protects brain health.
First of all, there is a vitamin D receptor in the hippocampus, the memory center of the brain, which may suggest that vitamin D promotes the growth and maturation of nerve cells through the function of a neurosteroid. It may be related.
Vitamin D is also thought to protect the brain by inhibiting excessive inflammatory neurovascular damage caused by the decline of cytokines and amyloid proteins, which are commonly observed in Alzheimer’s dementia.
The results of this study were published in the American Journal of Clinical Nutrition.
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