fri aug 15 Flashcards
most common causes of acute epididymitis in young men?
chlamydia and gonorrhea
most common causes of acute epididymitis in men > 35 yo?
e coli
what are the most common viral infections to trigger an exacerbation of COPD?
rhinovirus and influenza
which cells of the kidney produce EPO?
peritubular fibroblasts in the renal cortex
what are the antibodies in pemphigus vulgaris directed against?
Desmosomes - desmogleins 1 and 3
what do mesotheliomas stain positive for?
-cytokeratins and calretinin
what is the most common DNA binding domain motif in humans?
zinc finger
transcription factors often bind to which binding motif?
zinc finger motif
misoprostal MOA
PE1 agonist
mifeprestone MOA
progesterone antagonist
what are the two exclusively ketogenic amino acids?
lysine and leucine
someone with pyruvate dehydrogenase deficiency should be on which type of diet?
Ketogenic - to avoid the production of lactate
what is seen on light microscopy of the liver in reyes syndrome?
microvesicular steatosis - (small fat vacuoles in the cytoplasm of hepatocytes)
entacapone MOA
COMT inhibitor - reduces peripheral metabolism of levadopa resulting in increasd bioavailability for the brain
chronic enteroviral infections are associated with which immunodeficiency?
x linked agammaglobulinemia
what type of bacteria is gardnerella?
aneorobic gram variable rod
MOA of imiquimod
-activates toll like receptors increasing the proinflammatory response
presbyopia
inability to focus on near objects - image focuses behind the lens
myopia
inability to focus on far objects - image focuses in front of the lens
what is the leading bacterial cause of COPD exacerbation?
H infleunza
which step of vitamin D synthesis does sunlight cause?
UVB in sunlight converts 7-dehydrocholesterol to Cholecalciferol (vit D3)
which cell lines are increased in COPD?
neutrophils, macrohpages and CD8+ lymphocytes
polymyxin MOA
-binds to LPS disrupting bacterial cell membranes
which enzyme takes over the metabolism of fructose in a fructokinase deficiency?
hexokinase - it metabolizes fructose to fructose-6-p which can enter glycolysis
what reaction is performed by aldose reductase?
glucose to sorbitol
pathology findings of blood vessels in someone with fibromuscular dysplasia?
fibromuscular webs alternating with aneursymal dilation and loss of internal elastic lamina
(string of beads appearance)
what renal complication do many patients with fibromuscular dysplasia develop?
renal artery stenosis
alpha fetoprotein is a marker for which cancers?
HCC
Germ cell
CA 19-9 is a marker for which cancers?
pancreatic
CA 125 is a marker for which cancerS?
ovarian
CEA is a marker for which cancer?
gastrointestinal
Hcg is a marker for which cancers
- choriocarcinoma
- germ cell
what does veracity mean?
the ethical need to communicte truthfully with patients