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Vitamin pill could help delay dementia
Source: Agencies |
September 10, 2010, Friday
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DAILY tablets of large doses of B vitamins can halve the rate of brain shrinkage in elderly people with memory problems and may slow their progression toward dementia, according to data from a British trial.
Scientists from Oxford University said their two-year clinical trial was the largest to date into the effect of B vitamins on so-called "mild cognitive impairment" - a major risk factor for Alzheimer's disease and other forms of dementia.
"This is a very dramatic and striking result. It's much more than we could have predicted," said David Smith of Oxford's department of pharmacology, who co-led the trial.
"It is our hope that this simple and safe treatment will delay development of Alzheimer's in many people who suffer from mild memory problems."
Mild cognitive impairment (MCI) affects around 16 percent of people aged over 70 worldwide and is characterized by slight problems with memory loss, language or other mental functions.
MCI does not usually interfere with daily life, but around 50 percent of people diagnosed with it go on to develop the far more severe Alzheimer's disease within five years.
Alzheimer's is a mind-wasting disease for which there are few treatments and no cure, and which affects 26 million people around the world.
Smith and colleagues conducted a two-year trial with 168 volunteers with MCI who were given either a vitamin pill containing very high doses of folic acid, vitamin B6 and vitamin B12, or a placebo.
Helga Refsum, who worked on the trial, stressed that vitamins were given in extremely high doses. "This is a drug, not a vitamin intervention."
Scientists from Oxford University said their two-year clinical trial was the largest to date into the effect of B vitamins on so-called "mild cognitive impairment" - a major risk factor for Alzheimer's disease and other forms of dementia.
"This is a very dramatic and striking result. It's much more than we could have predicted," said David Smith of Oxford's department of pharmacology, who co-led the trial.
"It is our hope that this simple and safe treatment will delay development of Alzheimer's in many people who suffer from mild memory problems."
Mild cognitive impairment (MCI) affects around 16 percent of people aged over 70 worldwide and is characterized by slight problems with memory loss, language or other mental functions.
MCI does not usually interfere with daily life, but around 50 percent of people diagnosed with it go on to develop the far more severe Alzheimer's disease within five years.
Alzheimer's is a mind-wasting disease for which there are few treatments and no cure, and which affects 26 million people around the world.
Smith and colleagues conducted a two-year trial with 168 volunteers with MCI who were given either a vitamin pill containing very high doses of folic acid, vitamin B6 and vitamin B12, or a placebo.
Helga Refsum, who worked on the trial, stressed that vitamins were given in extremely high doses. "This is a drug, not a vitamin intervention."
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