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Dementia may occur when neurodegenerative and cerebrovascular pathologies are mixed, as in susceptible elderly people (75 years and older). [2] [5] Cognitive decline can be traced back to occurrence of successive strokes. [4] ICD-11 lists vascular dementia as dementia due to cerebrovascular disease. [1]
[11] [14] Men and women appear to be equally affected. [15] It is the most common early presenting dementia. [16] FTD is the second most prevalent type of early onset dementia after Alzheimer's disease. [15] [10]
There is overlap in the genetic risk factors for DLB, Alzheimer's disease (AD), Parkinson's disease, and Parkinson's disease dementia. [87] [91] The APOE gene has three common variants. One, APOE ε4, is a risk factor for DLB and Alzheimer's disease, whereas APOE ε2 may be protective against both.
This is an accepted version of this page This is the latest accepted revision, reviewed on 5 March 2025. Long-term brain disorders causing impaired memory, thinking and behavior This article is about the cognitive disorder. For other uses, see Dementia (disambiguation). "Senile" and "Demented" redirect here. For other uses, see Senile (disambiguation) and Demented (disambiguation). Medical ...
Several neurological conditions such as Alzheimer's disease, autism, [50] [51] various types of brain injury, [52] Klüver–Bucy syndrome, [53] Kleine–Levin syndrome, [54] Epilepsy [55] and many neurodegenerative diseases can cause hypersexual behavior. Sexually inappropriate behavior has been shown to occur in 7–8% of Alzheimer's patients ...
The existence of alcohol-related dementia is widely acknowledged but not often used as a diagnosis, due to a lack of widely accepted, non-subjective diagnostic criteria; more research is needed. [10] Criteria for alcohol-induced persistent dementia in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) include the following: A.
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REM sleep behavior disorder (RBD) is a parasomnia in which individuals with RBD lose the paralysis of muscles (atonia) that is normal during rapid eye movement (REM) sleep, and act out their dreams or have other abnormal movements or vocalizations. [10] Abnormal sleep behaviors may appear decades before any other symptoms, often as an early ...