Tag Archives: vitamin D

Link between vitamin D and dementia risk confirmed

Vitamin D deficiency is associated with a substantially increased risk of dementia and Alzheimer’s disease in older people, according to the most robust study of its kind ever conducted.

An international team, led by Dr David Llewellyn at the University of Exeter Medical School, found that study participants who were severely Vitamin D deficient were more than twice as likely to develop dementia and Alzheimer’s disease.

The team studied elderly Americans who took part in the Cardiovascular Health Study. They discovered that adults in the study who were moderately deficient in vitamin D had a 53 per cent increased risk of developing dementia of any kind, and the risk increased to 125 per cent in those who were severely deficient. (more…)

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Of Aging Bones and Sunshine

Study at Berkeley Lab’s Advanced Light Source Links Vitamin D Deficiency to Accelerated Aging of Bones

Everyone knows that as we grow older our bones become more fragile. Now a team of U.S. and German scientists led by researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California (UC) Berkeley has shown that this bone-aging process can be significantly accelerated through deficiency of vitamin D – the sunshine vitamin.

Vitamin D deficiency is a widespread medical condition that has been linked to the health and fracture risk of human bone on the basis of low calcium intake and reduced bone density. However, working at Berkeley Lab’s Advanced Light ALS), a DOE national user facility, the international team demonstrated that vitamin D deficiency also reduces bone quality. (more…)

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Vitamin D, Omega-3 May Help Clear Amyloid Plaques Found in Alzheimer’s

A team of academic researchers has pinpointed how vitamin D3 and omega-3 fatty acids may enhance the immune system’s ability to clear the brain of amyloid plaques, one of the hallmarks of Alzheimer’s disease.

In a small pilot study published in the Feb. 5 issue of the Journal of Alzheimer’s Disease, the scientists identified key genes and signaling networks regulated by vitamin D3 and the omega-3 fatty acid DHA (docosahexaenoic acid) that may help control inflammation and improve plaque clearance. (more…)

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Researchers Determine Vitamin D Blood Level for Reducing Major Medical Risks in Older Adults

In testing older patients’ blood vitamin D levels, there’s uncertainty about where the dividing line falls between enough and not enough. The threshold amount has become controversial as several scientific societies set different targets.

To help resolve this debate, University of Washington researchers conducted an observational study. They wanted to learn how much vitamin D must be circulating in the blood to lower the risk of a major medical event. This category included heart attack, hip fracture, diagnosis of cancer, or death. (more…)

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For Those Who Don’t Exercise or Watch Their Diets, CU ‘Nutraceutical’ Research Could Help

University of Colorado at Boulder Professor Douglas R. Seals has amassed scientific evidence indicating that exercise, weight loss, good nutrition and salt restriction can cut your chances of getting cardiovascular disease, the United States’ No. 1 killer.

But Seals knows that exhorting people to exercise and lose weight, no matter how well the case is buttressed with data, will only go so far. So Seals’ laboratory has begun researching “nutraceuticals,” food extracts or vitamin supplements that could mimic the effects of a healthful lifestyle. (more…)

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