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
Gold Standard for MS diagnosis
MRI (FLAIR)
Oligoclonal bands, increase in IgG in CSF
MS
Scanning Spech, intention tremor, INO, Nystagmus
MS
Tx to slow progression of MS
Beta-IFN, immunosuppression, natalizumab
Symptomatic tx for neurogenic bladder associated with MS
catheterization, muscarinic antagonist
Symptomatic tx for spasticity associated with MS
baclofen, GABA receptor agonist
Most common variant of Guillen-Barre syndrome
Acute Inflammatory Demyelinating Polyradiculopathy
Symmetric Ascending weakness/paralysis beginning in lower extremities
Acute Inflammatory Demyelinating Polyradiculopathy (Guillen-Barre)
Findings in Guillen-Barre
increased CSF protein with normal cell count, albuminocytologic dissociation
Papilledema
Infections associated with Guillen-Barre
Campylobacter jejuni, CMV - autimmune attack of peripheral myelin due to molecular mimicry, innoculatino and stress
Tx for Guillen-Barre
Respiratory support, Plasmaphoresis, IVIGs
JC virus
Progressive multifocal leukoencephalopathy
demyelination of CNS due to destruction of oligodendrocytes; rapidly progressive, usually fatal
PML
Natalizumab
Increases risk of developing PML
Multifocal perivenular inflammation and demyelination after measles or VZV
Acute disseminated (postinfectious) encephalomyelitis
Arylsulfatase A deficiency
Metachromatic Leukodystrophy (Auto Recessive)
Build up of sulfatides impairing myelin production, central and peripheral demyelination with ataxia and dementia
Metachromatic Leukodystrophy
Hereditary Motor and sensory Neuropathy, defective structural proteins in peripheral nerves or myelin sheath
Charcot-Marie-Tooth Disease
High or Flat Arches
Charcot-Marie-Tooth Disease
galactocerebroside and psychosine destroys myeline sheath
Krabbe Disease (Auto Recessive)
Peripheral neuropathy, developmental delay, optic atrophy, globoid cells
Krabbe Disease
Impaired addition of CoA to long chain FA causing excessive build up in nervous system, adrenal gland and testes
Adrenoleukodystrophy
Mama
just killed a man