Known as brain infarcts, they're involved in vascular dementia, the second most common form of dementia, after Alzheimer's disease.
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Belfast has the highest diagnosis rate of dementia in the UK, according to new figures released by the Alzheimer's Society.
How alcohol affects the cognition of a person with dementia isn't completely understood, but four new studies presented at the Alzheimer's Association International Conference shed a little more light on their relationship.
Research by London School of Economics and King's College London commissioned by the Alzheimer's Society found Cardiff and Swansea have the highest number of people with dementia, while Ceredigion and Powys will see some of the biggest growth in the condition.
Researchers at Rush Medical University found that mentally challenging activities, such as reading and playing chess, may have a protective effect on the brain and help lower risk of dementia associated with Alzheimer's disease.
The Alzheimer's Society said the incident showed "a lack of understanding in society" of dementia.
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The Alzheimer's Society says around 800, 000 people in the UK have a form of dementia.
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But if a patient has two copies of apo E-4, the odds that the dementia is due to Alzheimer's jumps to 94% from 66%, the Duke scientists say.
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The pathology of dementia appears about 10 to 15 years before a person actually develops Alzheimer's disease, Stern said.
Comedians Jo Brand and Meera Syal have become two of England's first 'dementia friends', in an initiative launched by the Alzheimer's Society.
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The proportion of men caring for relatives with Alzheimer's or dementia, for example, doubled -- from 19% to 40% -- from 1996 to 2009.
Memantine is also especially useful in the treatment of patients with Alzheimer's disease and patients with vascular dementia.
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The Alzheimer's Society said of the 13, 500 people with dementia in Devon, the option of housing with on-site care and support would be welcomed by some.
Alzheimer's disease is the most common and among the most severe types of dementia.
This kind of change in musical taste was not seen in any of the Alzheimer's patients, and thus appears to be specific to those with frontotemporal dementia.
Dr. Barbara Messinger-Rapport, geriatrics chief at the Cleveland Clinic, noted that half of people 85 and older in developed countries have some dementia, usually Alzheimer's.
When she created a strain of mice with the presenilin genes missing in their brains, the mice developed dementia and brain cell death just like Alzheimer's sufferers, but the mice had no amyloid deposits.
Alzheimer's disease affects millions of people world-wide and is the leading cause of dementia in the elderly.
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