all Flashcards
Medullary thyroid cancer is associated with what gene mutation?
RET (MEN 2A, 2B)
Papillary thyroid cancer, melanoma, and non-Hodgkin lymphoma is associated with what gene mutation?
BRAF
Follicular lymphoma and adenoma is associated with what genetic mutation?
PPAR-y/PAX8 fusion
Osmotic myelinolysis is a side effect of what?
Raising sodium too high. This causes demylination of neurons int he brain
Vitamin E (tocopherol) deficiency manifests with what symptoms
Hemolytic anemia - low haptoglobin
Posterior column - proprioception
Spinocerebellar tract - Romberg test
Vitamin B6 deficiency manifests as what kind of anemia?
Sideroblastic microcytic anemia
Method of action of tetanospasmin
Blocks the release of glycine and GABA from inhibitory cells
Rheumatoid factors target which part of IgG
Fc region of IgG
Rheumatoid arthritis is associated with which HLA?
DR4, DR1
Patient went to Chile and now having fever, headaches, facial lympadenopathy, and periorbital swelling
Chagas disease
The diencephalon gives rise to what part of the brain
Third ventricle
Method of action of Entacapone
Peripherally inhibits COMT which reduces methylation of levodopa to dopamine
Method of action of carbidopa
Decreases the conversion of levodopa to dopamine in the periphery
Method of action of Ropinirole
Dopamine agonist. Used in young parkinsons patients
MEthod of action of amantadine
NMDA antagonist, increasing release of dopamine and decreasing reuptake
MAO-B inhibitors method of action
Decrease dopamine degredation in the brain