6/10/2014 Flashcards
heteroplasmy
varying proportions of gene mutations in mitochondria - causes variable disease expression.
Fanconi syndrome
cystinuria, cystinosis
Type II RTA (proximal)
fanconi (cysteinosis), heavy metal poisoning, multiple myeloma
Type I RTA
distal
Type IV
hyperkalemic - low aldosterone or low response to aldosterone.
marfanoid body habitus
fibrillin-1 (FBN-1) defect, Homocysteinuria, MEN2B, spontaneous pneumothorax
death in homocysteinuria
atheromas prior to age 30
Iduronate sulfatase
deficient in Hunters, abnormal carb breakdown in lysosomes, x-linked
Hurler
GAG accumulation in cornea and other parts
glycosaminoglycan accumulation of Hunters
dermatan sulfate, heparan sulfate
causes of B3 deficiency
carcinoid syndrome, hartnup
B6 deficiency can lead to deficiency of
B3
Precursor to B3
triptophan
2 causes of orotic acid buildup
ornithine transcarbamoylase deficiency (hyperammonemia and decreased BUN), orotic aciduria
megaloblastic anemia uncured by B12 or folate
orotic aciduria
B2
riboflavin - FAD
B6
pyridoxime
B vit of FAD
B2
onion skin lysosomes
tay-sachs
B1
thiamine
decussation of lateral corticospinal tract
medulla
anosmia
loss of smell - zink overload
BUN:Cr less than 10
intrinsic renal failure
BUN:Cr 10-20
Normal renal or post renal
hypotension, JVD, and distant heart sounds
tamponade
prerenal insufficiency
low CO, arterioconstriction, low blood volume
wire-looping of capillaries
SLE nephritis
WAGR
wilms, aniridia, genitourinary malformation, retardation
3yo lg unilateral flank mass
wilm’s
WT1 mutation - blastema primitive glomeruli and tubules.
wilms
beckwith weidman
wilms, neonatal hypoglycemia, muscular hemihypertrophy, and organomegaly (including tongue)
differentiate interstitial nephritis to glomerulonephritis to pyelonephritis
interstitium, glomeruli, papillae
cyclophosphamide
treat NHL, transitional cell carcinoma invading submucosa of bladder
associated with transitional cell carcinoma
cyclophosphamide, smoking, acetominophen, arsenic, and chloride
hunner’s patches
reddened patches seen in interstitial cystitis
right lower lobe mass, smoking, chronic cough, weight loss
small celll lung cancer - SIADH