Alzheimer's & Other Dementias

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Research with genetically engineered mice shows why the apoE4 gene is so strongly associated with Alzheimer’s, and points to strategies for countering its effects.

Carriers of the so-called ‘Alzheimer’s gene’ (apoE4) comprise 65% of all Alzheimer's cases. A new study helps us understand why that’s true.

Another small study supports earlier research suggesting that low testosterone is a risk factor for Alzheimer’s for older men.

A Chinese study involving 153 older men (55+; average age 72), of whom 47 had mild cognitive impairment, has found that 10 of those in the

A long-running study adds to the evidence that high levels of homocysteine increase the risk of developing Alzheimer’s, and higher levels of vitamin B12 help to bring down these levels and reduce risk.

A seven-year study involving 271 Finns aged 65-79 has revealed that increases in the level of

A very large long-running study has found smoking over two packs per day in middle age more than doubled the chances of developing dementia in later life.

Data from 21,123 people, surveyed between 1978 and 1985 when in their 50s and tracked for dementia from 1994 to 2008, has revealed that those who smoked more than two packs per day in middle age had more than twice the risk of developing dementia, both Alzheimer's and

Another study has come out suggesting that the advantage of mental stimulation is to delay cognitive decline, but at the cost of faster decline later (it’s still a good bargain).

A long-running study involving 1,157 healthy older adults (65+) who were scored on a 5-point scale according to how often they participated in mental activities such as listening to the radio, watching television, reading, playing games and going to a museum, has found that this score is correla

Cognitive tests only test you at a particular moment in time; early signs of Alzheimer's are more evident in declines in everyday behavior that are most visible to other people.

Confirming earlier research, a study involving 257 older adults (average age 75) has found that a two-minute questionnaire filled out by a close friend or family member is more accurate that standard cognitive tests in detecting early signs of Alzheimer’s.

A finding that the livers of Alzheimer’s patients have an impaired ability to make the omega-3 fatty acid DHA may suggest a new approach.

Low levels of DHA, an omega-3 fatty acid, have been found in the brains of those with Alzheimer's disease, but the reason has not been known.

  • An international review of patients with frontotemporal dementia has revealed that the area of the brain first affected tends to be the hemisphere least used in the individual’s occupation.

A review of brain imaging and occupation data from 588 patients diagnosed with frontotemporal dementia has found that among the dementias affecting those 65 years and younger, FTD is as common as Alzheimer's disease.

A safety trial has shown that Deep Brain Stimulation is safe for those with mild Alzheimer’s, and may slow cognitive decline.

A pilot study involving six patients with mild Alzheimer’s has shown using Deep Brain Stimulation (DBS) is safe and may help improve memory, or at least slow decline. Patients received continuous stimulation for 12 months, between 2005 and 2008.

  • Vitamin B supplements markedly reduced brain atrophy in older adults with MCI, offering hope that they may be effective in delaying the development of Alzheimer’s.

A two-year study involving 271 older adults (70+) with mild cognitive impairment has found that the rate of brain atrophy in those taking folic acid (0.8 mg/d), vitamin B12 (0.5 mg/d) and vitamin B6 (20 mg/d), was significantly slower than in those taking a placebo, with those taking the supplem

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