Taking high dose of vitamin D can stop multiple sclerosis sufferers having a relapse
Published 5 Jan 2016
Taking a high dose of the sunshine vitamin D can stop multiple sclerosis sufferers having a relapse, study found.
The vitamin, known for its importance for bone health, is obtained primarily through sun exposure as well as egg yolks, cheese and fish oil.
MS is a neurological condition which affects around 100,000 people in the UK - one in 600.
The most common symptoms are fatigue, stumbling more than before, pins and needles or numbness, slowed thinking or problems with eyesight.
There is a growing body of research that suggests a lack of vitamin D could be a factor in causing it as people who have MS and low levels of vitamin D are more likely to have greater disability and more disease activity.
Now a new study found vitamin D3, known as Cholecalciferol - a steroid molecule - can help MS patients.
It found Vitamin D3 was a safe way to correct the body's hyperactive immune response.
Vitamin D3 is one of the five forms of nutrient.
The Johns Hopkins University School of Medicine in Baltimore study involved 40 people with relapsing-remitting MS received either 10,400 IU or 800 IU of vitamin D3 supplements per day for six months.
The current recommended daily allowance of vitamin D3 is 600 IU.
Blood tests were done at the start and then at three and six months to measure the amount of vitamin D in the blood and the response in the immune system's T cells, which play a key role in MS.
There were only minor side effects and one person in each group had a relapse of disease activity.
The people taking the high dose had a reduction in the percentage of T cells related to MS activity.
When the increase in vitamin D in the blood was greater than 18 nanograms per milliliter (ng/ml), every 5 ng/ml increase in vitamin D led to a 1 per cent decrease in the percentage of interleukin 17 T cells in the blood.
The people taking the low dose did not have any changes in their T cells.
The optimal level of vitamin D in the blood for people with MS has still to be determined but would be near the high dose level.
Vitamin D levels above 30 ng/ml are considered sufficient for the general population, but for people with MS, it may be that levels above 50 ng/ml are necessary to reduce disease activity.
Professor of Neurology Dr Peter Calabresi said: "These results are exciting, as vitamin D has the potential to be an inexpensive, safe and convenient treatment for people with MS
"More research is needed to confirm these findings with larger groups of people and to help us understand the mechanisms for these effects, but the results are promising."
The study was published in Neurology, the medical journal of the American Academy of Neurology.
Western Daily Press
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