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Alzheimer's disease (AD) is a neurodegenerative disease that usually starts slowly and progressively worsens, [2] and is the cause of 60–70% of cases of dementia. [2][15] The most common early symptom is difficulty in remembering recent events. [1] As the disease advances, symptoms can include problems with language, disorientation (including ...
More than one type of dementia, known as mixed dementia, may exist together in about 10% of dementia cases. [2] The most common type of mixed dementia is Alzheimer's disease and vascular dementia. [87] This particular type of mixed dementia's main onsets are a mixture of old age, high blood pressure, and damage to blood vessels in the brain. [15]
Prognosis. Variable; average survival 4 years from diagnosis [ 8 ] Frequency. About 0.4% of persons older than 65 [ 9 ] Dementia with Lewy bodies (DLB) is a type of dementia characterized by changes in sleep, behavior, cognition, movement, and regulation of automatic bodily functions. Memory loss is not always an early symptom.
In the new study, the p-tau217 test was combined with another blood biomarker for Alzheimer’s called the amyloid 42/40 ratio, which measures two types of amyloid proteins, another biomarker of ...
Early diagnosis is important for all types of dementia. The methods researchers currently use for early detection or screening of dementia can be costly, not available, or come with certain risks.
Lewy body dementia(LBD) is an umbrella term for two similar and common subtypes of dementia:[1]dementia with Lewy bodies(DLB) andParkinson's disease dementia(PDD). [2][3][4][5]Both are characterized by changes in thinking, movement, behavior, and mood.[1] The two conditions have similar features and may have similar causes, and are believed to ...
AFib, the most common heart rhythm disorder, is linked to a 39% increased risk of cognitive impairment, while coronary heart disease increases the risk of dementia by 27%, with up to 50% of heart ...
Binswanger's disease, also known as subcortical leukoencephalopathy and subcortical arteriosclerotic encephalopathy, [1] is a form of small-vessel vascular dementia caused by damage to the white brain matter. [2] White matter atrophy can be caused by many circumstances including chronic hypertension as well as old age. [3]
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