Ch 19: What is Alzheimer disease Flashcards
Double aging
there are more elderly people who are getting older and older
Alzheimer: risk factors
- age
- women
- genetic predisposition
Alzheimer: diagnosis
per exclusion
type of dementia (etiological diagnosis)
NIA-AA: low medium high probability of Alzheimer
definite diagnosis only post mortem or with genetic mutation
Mild cognitive impairment (MCI)
amnestic MCI
non-amnestic MCI
MCI in various domains
Dementia occurs in 10-15% within 5 years
Alzheimer: neuropathology
plaques and tangles –> cell death and atrophy
amyloid cascade hypothesis
abnormal cleavage of the APP –> imbalance production and breakdown of amyloid beta protein –> plaques
later stage: tangles of the tau protein are added –> correlates with severity
Vascular hypothesis
vascular damage contributes to alzheimer
addiction to amyloid cascade hypothesis
Alzheimer: diagnosis
hetroanamnese
MMSE (mini mental state exam)
Alzheimer: neuropsychological symptoms
- memory
- initial phase: anterograde episodic memory
- later stage: retrograde
- sense of orientation
- language
- executive functioning when disease develops
Types of dementia
- Alzheimer: memory
- Lewy body dementia: less memory problems than alzheimer
- semantic dementia: language
- primary progressive dementia: language
- vascular dementia: slowness + decreased mental flexibility
Posterior cortical atrophy (PCA)
visual form of alzheimer
visual dysfunctions, memory + executive intact