In general, cholinesterase inhibitors have shown some benefit for patients with vascular dementia, those with mixed Alzheimer's and vascular dementia, patients with the disease known as "dementia with Lewy bodies, " and dementia from Parkinson's disease.
CNN: Better understanding of dementia leading to more effective therapies
Those who were depressed when first examined almost doubled their risk for dementia and also increased their risk for Alzheimer's disease.
In addition to being heart-healthy, research suggests the olive oil-rich Mediterranean diet may also protect against age-related dementia, Alzheimer's disease and certain types of cancer.
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.
Around 700, 000 people in the UK have dementia, and more than half suffer from Alzheimer's.
Originally developed by Microsoft Research in Cambridge, England, the technology has been licensed to Oxford-based Vicon, which will produce a version for Alzheimer's and dementia researchers by the year's end and a consumer version in 2010.
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.
People who have both Alzheimer's and vascular disease -- a condition called mixed dementia -- have a more rapid progression of Alzheimer's disease, Cole said.
CNN: Mediterranean diet may help prevent dementia, study says
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.
In a study published last year in the journal Cortex, Dr. Rankin and her colleagues studied the ability to detect sarcasm in 102 patients who had been diagnosed with four progressive diseases that lead to memory loss: frontotemporal dementia, Alzheimer's disease, progressive supranuclear palsy and vascular-cognitive impairment.
Memantine is also especially useful in the treatment of patients with Alzheimer's disease and patients with vascular dementia.
CNN: Better understanding of dementia leading to more effective therapies
It will focus on conditions including attention deficit hyperactivity disorder, autism, schizophrenia, bipolar disorder, depression, post-traumatic stress disorder, as well as Alzheimer's disease and other forms of dementia.
Researchers have found that patients with Alzheimer's disease and several other types of dementia have lower levels of this acetylcholine.
CNN: Better understanding of dementia leading to more effective therapies
Questions remain about using deep-brain stimulation to treat dementia, including whether it would work for Alzheimer's patients and at what stage of decline, whether it is safe and how long the effect will last, said Dr. Salloway.
Robb's 92-year-old grandmother is one of an estimated 36 million people worldwide with dementia, according to 2010 data from Alzheimer's Disease International, and Robb is one of about 65.7 million people in the United States taking care of relatives with various conditions, including dementia.
Studies have shown that staying mentally and physically active can slow or even prevent Alzheimer's-related dementia.
Alzheimer's is a form of dementia that progressively robs patients of their memories and affects their thinking and behavior.
More than 5 million Americans are living with Alzheimer's, according to the U.S. Alzheimer's Association, and there are no good treatments to prevent the dementia and memory loss caused by the disease.
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.
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.
Alzheimer's disease affects millions of people world-wide and is the leading cause of dementia in the elderly.
The Alzheimer's Society is running events across England, Wales and Northern Ireland, during Dementia Awareness Week.
BBC: Carey Mulligan supports bid to raise dementia awareness
The Alzheimer's Society has welcomed the survey and said it backs its research about the wishes of dementia sufferers.
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