Cognitive Disorders Flashcards
95% of Alzheimer’s cases present after this age
65
Does early or late onset Alzheimer’s have a more rapid progression with more pronounced structural loss?
Early onset
Alzheimer’s involves an accumulation of these two proteins, and is associated with progressive brain atrophy
Beta-amyloid plaques and Tau protein
Gene mutation of amyloid precursor protein is associated with early onset Alzheimer’s, and is found on this chromosome
21
Gene mutation of presenilin 1 is associated with early onset Alzheimer’s, and is found on this chromosome
14
Gene mutation of apolipoprotein E gene is associated with late onset Alzheimer’s, and is found on this chromosome
19
Mutation in this gene is associated with early onset Alzheimer’s, and is found on chromosome 21
Amyloid precursor protein
Mutation in this gene is associated with early onset Alzheimer’s, and is found on chromosome 14
Presenilin 1
Mutation in this gene is associated with late onset Alzheimer’s, and is found on chromosome 19
Apolipoprotein E
The signature lesions of this condition are neuritic plaques and neurofibrillary tangles in cortical and medial temporal lobes of the brain
Alzheimer’s
Neuritic plaques consist of this protein
Beta amyloid protein
Neuritic plaques consist of beta amyloid protein, and are formed by processing of this
Amyloid precursor proteins
Neurofibrillary tangles are common in these two locations of the brain in Alzheimer’s patients
Hippocampus and Cerebral cortex
Neurofibrillary tangles are composed of this
Abnormally hyperphosphorylated tau proteins
(support the neuron’s microtubule system)
Are neurofibrillary tangles composed of hypo- or hyperphosphorylated tau proteins?
Hyperphosphorylated
Abnormally hyperphosphorylated tau proteins form this lesion that is characteristic in Alzheimer’s disease
Neurofibrillary tangles
This part of the brain is especially noted to shrink in Alzheimer’s disease
Hippocampus
In Alzheimer’s disease, deposition of this may parallel local inflammatory/immunologic alternations
Amyloid
Loss of this activity in hippocampus and cortex correlates with Alzheimer’s disease severity
Cholinergic activity
This condition is a progressive memory impairment with some sparing of procedural (motor) memory
Alzheimer’s disease
Is procedural (motor) memory spared in Alzheimer’s disease?
Some yes
(may have aphasia, apraxia, agnosia, executive dysfunction)
This is a highly sensitive test that can assess the severity of Alzheimer’s disease
Montreal cognitive assessment (MOCA)
MRI or CT of a patient with Alzheimer’s disease will show a decrease in this
Grey matter volume
In Alzheimer’s disease, is grey or white matter volume decreased?
Grey