Boards Flashcards
retinol/beta carotine
Vit A
Def: bitot spots, night blindness, dry skin, corneal ulceration
Vit A
Vit Teratogens
Vit A - cleft palate, cardiac defects
Thiamine
Vit B1
TPP (thiamine) is a cofactor for what rxns
Pyruvate dehydrogenase (TCA cycle), alpha-ketogluterate dehydrogenase (TCA cycle), Transketoase (hmp shunt), branche chain AA dehydrogenase
Wernicke-korsakoff, beriberi (wet- cardiac, dry - footdrop symmetrical muscle waisting) - brain and heart affected first. Seen in malnutrition and alcoholics
vit b1 def
Sxs: confusion, opthalmoplegia, ataxia (triad) + confabulation, personality change, memory loss (irreversible)
Wernicke-korsakoff
riboflavin
Vit B2
cofactor in oxidation and reduction
Vit B2 - riboflavin is a cofactor for FAD, FMN
cheilosis (agranular stomatitis - lip inflammation, scaling, fissures at corners of mouth), glossitis
Vit B2
niacin
Vit B3
constituant of NAD, NADPH - used in redox rxns. Derived from tryptophan.
Vit B3
Def: pallegra - diarrhea, dementia, dermatitis
Vit B3 (the 3 Ds)
Excess: facial flushing
Vit B3 - Niacin
pantothenate
Vit B5
pyridoxine
Vit B6
Def: convulsions, hyperirritability, peripheral neuropathy, inducible by isoniazid
Vit B6
biotin
vit b7
cofactor for carboxylation enzymes
vit b7 - biotin
folic acid
vit b9
converted to tetrahydrofolate, def in alcoholics and pregnancy
vit b9 - folate
cobalmin
vit b12
megaloblastic anemia + neuro problems
vit b12
ascorbic acid
vit c
needed for proline and lysine in collagen synthesis
vit c
swollen gums, hemarthrosis, poor wound healing
scurvy - vit c def
hypocalcemia, frontal bossing, rachitic rosary, pigeon chest, bone pain
rickets - vit d def
femoral neck and vertebral body fractures, bone pain, muscle weakness,
ostemalacia - vit d def adults
alpha tocopherol
vit e
def: inc fragility of rbcs, spinocerabellar tract demyelination (ataxia)
vit e
vit k def coags
10, 9, 7, 2, C, S. Babies need vit k - not in breast milk
def: delayed wound healing, acrodermatitis enteropathica (rash around eyes, mouth and anus), growth retardation, dec night vision, infertility
zinc def
Phenylalanine derivative
tyrosine, dopamine, NE, Epi
Tryptophan derivative
Niacin, seratonin ->melatonin
histadine derivative
histamine
gylcine derivative
porphyrine, heme
arginine derivative
creatine, urea, NO
glutamate derivative
GABA, Glutathione
macrophages filled with fungus, infiltrative granuloma, mississippi and ohio river valley, bird or bat droppings, pneumonia
histoplasmosis
east of mississippi, granulomatous nodules, broad based bud, heaped up boarders with microabscesses, skin lesions , inflammatory lung disease
blastomycosis
southwestern US (Cali, AZ) pneumonia and meningitis, spores in dust, spherules filled with endospores, barrel shaped, valley fever, desert bumps
coccidiodomycosis
latin america, budding yeast with captains wheel
paracoccidiodomycosis
elderly females, unilateral headache, jaw claudication
temporal arteritis
may lead to irreversible blindness, inc ESR
temporal arteritis
pulseless disease, asian females less than 40, weak upper extremity pulses, granulomatous thickening of aortic arch
takayasu arteritis
young adults, assoc with Hep B, relapsing and remitting, renal and visceral vessels, not pulmonary arteries, immune complex mediates, fibrinoid necrosis
polyarteritis nodosa
lesions of different ages
polyarteritis nodosa
asian children under 4, strawberry tongue, hand foot erythema, rash, may develop coronary aneurysm, MI, rupture
kawasaki - Tx w. aspirin
heavy smokers, males under 40, intermittent claudication, may lead to gangrene, autoamputation of digits, microabcesses, raynauds, tibial and radial a. involvement
buergers disease (thomboangiitis obliterans)
pauci-immune glomerulonephritis, lesions of same age, necrotising vasculitis involving lung, kidneys, skin, no granulomas, p-ANCA
microscopic polyangiitis
p-ANCA
microscopic polyangiitis, churg strauss
chronic sinusitis, perforation of nasal septum.
Triad: focal necrotizing vasculitis, necrotizing granulomas of lung, necrotizing glomerulonephritis c-ANCA
Wegners
Asthma, palpable purpura, peripheral neuropathy (wrist/foot drop), granulomas, necrotizing vasculitis with eosinophils. p-ANCA
churg-strauss
c-anca
wegners granulomatosis
most common childhood vasculits, follows URI, assoicated with bergers (IgA nephropathy)
henoch-schonlein purpura
Triad: palpable purpura on buttocks/legs, arthritis, abdominal pain/melena
seen in kids
henoch-schonlein purpura
t(9:22)
CML bcr-abl (tyrosine kinase)
t(8;14)
burkitts c-myc
t(11;14)
mantle cell cyclin D
t(14;18)
follicular bcl-2
t(15;17)
M3 type of AML - responds to Vit A
ingestion causes actue renal failure w/ muddy brown casts and hemorrhagic gastritis
mercury
ingestion causes pancytopenia w/ hypocellular bone marrow
benzene
ingestion disrupts ETC and is treated with sodium nitrate
cyanide
enzyme responsible for salt wasting in CAH
11-deoxycorticosterone
enzyme responsible for mineral corticoid excess in CAH
17-alpha hydroxylase
dark curtain falls over eyes, transient vision loss, vertigo, HTN
amaurosis fugax
alcoholic with massive hematemesis, may be fatal
esophageal varicies
alcoholic with hematemesis after violent retching
mallory weiss tears (longitudinal lacerations)
FAP + osteomas, hypertrophy of retinal pigment epithelium, desmoid tumors, lipomas, dental abnormalities
Gardners syndrome, chrom 5
harmatomas in GI tract + hyperpigmented lesions on lips and mouth
peutz-jeghers
FAP + glioblastomas, medulloblastomas
turcots
HNPCC + inc risk of cancer everywhere
lynch syndrome
macrocephaly, multiple GI harmatomas, inc risk of breast cancer, follicular thyroid cancer, endometrial cancer
Cowden syndrome