Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Link Between Vitamin D and Dementia Risk Confirmed

07.08.2014

In the largest study of its kind, researchers suggests that in older people, not getting enough vitamin D may double the risk of developing dementia and Alzheimer’s disease. The study is published in the August 6, 2014, online issue of Neurology®, the medical journal of the American Academy of Neurology.

The study looked at blood levels of vitamin D, which includes vitamin D from food, supplements and sun exposure. Dietary vitamin D is found in fatty fish such as salmon, tuna or mackerel, and milk, eggs and cheese.

“We expected to find an association between low Vitamin D levels and the risk of dementia and Alzheimer’s disease, but the results were surprising—we actually found that the association was twice as strong as we anticipated,” said study author David J. Llewellyn, PhD, of the University of Exeter Medical School in the United Kingdom. 

For the study, 1,658 people over the age of 65 who were dementia-free had their vitamin D blood levels tested. After an average of six years, 171 participants developed dementia and 102 had Alzheimer’s disease. 

... more about:
»Alzheimer’s »Health »Neurology »Vitamin »dementia

The study found that people with low levels of vitamin D had a 53-percent increased risk of developing dementia and those who were severely deficient had a 125-percent increased risk compared to participants with normal levels of vitamin D. 

People with lower levels of vitamin D were nearly 70 percent more likely to develop Alzheimer’s disease and those who had severe deficiency were over 120 percent more likely to develop the disease. 

The results remained the same after researchers adjusted for other factors that could affect risk of dementia, such as education, smoking and alcohol consumption. 

“Clinical trials are now needed to establish whether eating foods such as oily fish or taking vitamin D supplements can delay or even prevent the onset of Alzheimer’s disease and dementia. We need to be cautious at this early stage and our latest results do not demonstrate that low vitamin D levels cause dementia. That said, our findings are very encouraging, and even if a small number of people could benefit, this would have enormous public health implications given the devastating and costly nature of dementia,” said Llewellyn. 

The study was supported by the National Heart, Lung, and Blood Institute, the National Institute of Neurological Disorders and Stroke, the National Institute on Aging, the Alzheimer’s Association, the Mary Kinross Charitable Trust, the James Tudor Foundation, the Halpin Trust, the Age Related Diseases and Health Trust, the Norman Family Charitable Trust and the UK National Institute for Health Research.  

To learn more about dementia, please visit www.aan.com/patients

The American Academy of Neurology, an association of more than 28,000 neurologists and neuroscience professionals, is dedicated to promoting the highest quality patient-centered neurologic care. A neurologist is a doctor with specialized training in diagnosing, treating and managing disorders of the brain and nervous system such as Alzheimer’s disease, stroke, migraine, multiple sclerosis, brain injury, Parkinson’s disease and epilepsy. 

For more information about the American Academy of Neurology, visit http://www.aan.com

Rachel L. Seroka

Manager, Media and Public Relations

American Academy of Neurology

201 Chicago Avenue

Minneapolis, MN 55415

Ph: 612-928-6129   Mobile: 612-807-6968  Fax: 612-454-2744

rseroka@aan.com

Rachel L. Seroka | American Academy of Neurology

Further reports about: Alzheimer’s Health Neurology Vitamin dementia

More articles from Studies and Analyses:

nachricht Research investigates whether solar events could trigger birth defects on Earth
21.07.2015 | University of Kansas

nachricht Accounting for short-lived forcers in carbon budgets
15.07.2015 | International Institute for Applied Systems Analysis (IIASA)

All articles from Studies and Analyses >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Quantum Matter Stuck in Unrest

Using ultracold atoms trapped in light crystals, scientists from the MPQ, LMU, and the Weizmann Institute observe a novel state of matter that never thermalizes.

What happens if one mixes cold and hot water? After some initial dynamics, one is left with lukewarm water—the system has thermalized to a new thermal...

Im Focus: On the crest of the wave: Electronics on a time scale shorter than a cycle of light

Physicists from Regensburg and Marburg, Germany have succeeded in taking a slow-motion movie of speeding electrons in a solid driven by a strong light wave. In the process, they have unraveled a novel quantum phenomenon, which will be reported in the forthcoming edition of Nature.

The advent of ever faster electronics featuring clock rates up to the multiple-gigahertz range has revolutionized our day-to-day life. Researchers and...

Im Focus: Superfast fluorescence sets new speed record

Plasmonic device has speed and efficiency to serve optical computers

Researchers have developed an ultrafast light-emitting device that can flip on and off 90 billion times a second and could form the basis of optical computing.

Im Focus: Unlocking the rice immune system

Joint BioEnergy Institute study identifies bacterial protein that is key to protecting rice against bacterial blight

A bacterial signal that when recognized by rice plants enables the plants to resist a devastating blight disease has been identified by a multi-national team...

Im Focus: Smarter window materials can control light and energy

Researchers in the Cockrell School of Engineering at The University of Texas at Austin are one step closer to delivering smart windows with a new level of energy efficiency, engineering materials that allow windows to reveal light without transferring heat and, conversely, to block light while allowing heat transmission, as described in two new research papers.

By allowing indoor occupants to more precisely control the energy and sunlight passing through a window, the new materials could significantly reduce costs for...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

3rd Euro Bio-inspired - International Conference and Exhibition on Bio-inspired Materials

23.07.2015 | Event News

Clash of Realities – International Conference on the Art, Technology and Theory of Digital Games

10.07.2015 | Event News

World Conference on Regenerative Medicine in Leipzig: Last chance to submit abstracts until 2 July

25.06.2015 | Event News

 
Latest News

Tool making and additive technology exhibition: Fraunhofer IPT at Formnext

31.07.2015 | Trade Fair News

First Siemens-built Thameslink train arrives in London

31.07.2015 | Transportation and Logistics

California 'rain debt' equal to average full year of precipitation

31.07.2015 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>