Brain Diseases Flashcards
A decrease in cognitive ability, memory, or function with intact consciousness
Dementia
Population with an increased risk of developing Alzheimer
Downs
APP (chrom 21), presenilin-1
Chromosome 14, presenilin-2 (chr 1)
Early Onset Alzheimer
ApoE4 (chromosome 19)
Late Onset Alzheimer
ApoE2 (Chromosome 19)
Protective against Alzheimer
Neurofibrillary Tangles
intracellular, hyperphosphorylated tau protein, insoluble
Assoc with Alzheimer
Senile Plaques
extracellular beta-amyloid core; may cause intracranial hemorrhage
Pick Bodies
spherical tau protein aggregates, Frontotemporal dementia
Change in personality, spares parietal and posterior 2/3 of superior temporal gyrus
Frontotemporal Dementia
Dementia and visual hallucinations
Lewy Body dementia
alpha-synuclein defect
Lewy body demential
startle mmyoclonus
Creutzfeldt-Jakob Dx
Beta-pleated sheet resistent to proteases
Creutzfeldt-Jakob Dx
Spongiform Cortex
Creutzfeldt-Jakob Dx
2nd most common cause of dementia in elderly
Multi-infarct