CC4: Leukodystrohpies Flashcards
inherited diseases that affect myelin development and maintenance
leukodystrophy
Classical X – linked peroxisomal disorder
Adrenoleukodystrophy
AdrenoLeukoDystrphy Genetic defect:
ABCD1 gene localizes to Xq28
Addison’s-like disease can provoke
tan skin in ALD
Rapidly progressive, inflammatory cerebral form, characterized by visual and intellectual impairment, seizures, spasticity, and a rapid progression to death
ALD
ALD mri
occipito parietal
ALD treatment
bone marrow trasnsplant
Abnormally high levels of plasma VLCFAs
ALD
Alexander disease staining:
GFAP
Alexander symptoms
macrocephaly, 1st yr, seizures, rosenthal fibers, frontal predominant
alexander mri
frontal dominance
canavans disease is related to what gene
x-recessive
canavans clinical presentation
megacephalia, spongy degeneration of white matter, increased NAA
mri diffuse WM degeneration involving
u-fibers
canavan
high NAA
floppy baby, demyelinating peripheral neuropath, periventrricular lesion, no eye contact
metachromic
metachromic symptoms
progressive ataxia, cognitive decline, seizures, optic atrophy
A lysosomal storage disease: accumulation of cerebroside sulfate
metachromic
metachromic ld has what deficiency
Arylsulfatase-A deficiency
what organs is involved in MLD
Galbladder
abdnormal eye movements, poor head control and truncal ataxia
pelizaeus-merzbacher disease
PELIZAEUS- MERZBACHER DISEASE mri
diffuse T2 hyperintense white matter lesions sparing the subcortical u- fibers
PMD is involved with what protein
Proteolipid protein (PLP-1)
Pathology: widespread lack of myelin due to impaired formation of myelin
pelizaeus-merzbacher disease
stiff posture, jerky movements, hyperreflexia, started myoclonus
krabbes
krabbes mri
T2 hyperintense lesions on parietal lobes
GLOBOID CELL related
krabbes
krabbes treatment
bone marrow transplant
x-l revessive
ald and p-m
a-d inheritance
alexander
a-r
canavan, metachromic, krabbes
rosenthal fibers
alexander
inflammatory changes
ald
spongiform degeneration
canavan
Metachromatic granules
metachromic
Periventricular WM
metachromic