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Many diseases that cause cerebral atrophy are associated with dementia, seizures, and a group of language disorders called the aphasias. Dementia is characterized by a progressive impairment of memory and intellectual function that is severe enough to interfere with social and work skills. Memory, orientation, abstraction, ability to learn ...
Alzheimer's disease (AD) is a neurodegenerative disease that usually starts slowly and progressively worsens. [2] It is the cause of 60–70% of cases of dementia. [2] [15] The most common early symptom is difficulty in remembering recent events. [1]
Multi-infarct dementia results from a series of small strokes affecting several brain regions. Stroke-related dementia involving successive small strokes causes a more gradual decline in cognition. [4] Dementia may occur when neurodegenerative and cerebrovascular pathologies are mixed, as in susceptible elderly people (75 years and older).
Little is known about the events that occur during and that actually cause Alzheimer's disease. This is due to the fact that, historically, brain tissue from patients with the disease could only be studied after the person's death. Brain scans can now help diagnose and distinguish between different kinds of dementia and show severity.
The biochemistry of Alzheimer's disease, the most common cause of dementia, is not yet very well understood. Alzheimer's disease (AD) has been identified as a proteopathy : a protein misfolding disease due to the accumulation of abnormally folded amyloid beta (Aβ) protein in the brain . [ 1 ]
A 2005 study has evidenced that a substantial amount of VRS in the substantia innominata, lentiform nucleus, and the caudate nucleus of the basal ganglia may implicate dementia due to arteriosclerotic microvascular disease, in particular Ischemic Vascular Dementia, as opposed dementia due to neurodegenerative disease, specifically Alzheimer's ...
The doctor can look for potential underlying causes, including dementia, medication effects, or environmental factors, Elhelou says. From there, they can suggest effective ways to help you manage ...
The dementia [2] is more severe in patients with early onset of Huntington's disease. Parkinson's disease is characterised by features of dementia in older age. [ 3 ] [ 4 ] The adult type " leukodystrophy " also causes subcortical dementia with prominent frontal lobe features.
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