Week 4 Flashcards
Damage to the ________ causes Parkinson Disease
Substantia nigra
When substantia nigra neurons die ________ decrease and ________ increase
- dopamine
- acetylcholine
Sign and Symptoms of Parkinson’s disease
(TRAP)
Tremors (resting)
Rigidity (cogwheel)
Akanesia (slow movement
Postural instability
Meds for parkinson’s disease increase ________ and decrease _______
- dopamine
- acetycholine
Dopamine Agonists
- levodopa/carbidopa
- Pramipexole
- Ropinirole
(Prescribed for Parkinson’s disease and RLS)
Levodopa is converted to __________
dopamine (once it has crossed the BBB)
Carbidopa help keep __________ low
levodopa
Pramipexole and Ropinirole are ___________ agonists
dopamine (stimulate dopamine receptors)
Carbidopa prevents the conversion of
levodopa to dopamine before it crosses the BBB
Protein, vitamin B6, and iron prevent the absorption of _________
levodopa/carbidopa
Orthostatic hypotension is caused by ______
dopamine alteration
Dopaminergic medications can cause paranoia and _____________
hallucination
Pramipexole and ropinirole can cause __________
impulse control issues (gambling, shopping, binge eating)
Selegiline oral form is for
Parkinson’s disease
Selegiline transdermal version is for ___________
Depression
Selegiline MOA (mechanism of action)
- MOA-B inhibitor (prevents breakdown of dopamine)
- Avoid tyramine rich food (cheese, smoke meat, fig, beer, soy sauce)
- Avoid other drugs that increase monoamines
Anticholinergics meds
- Benztropine
- Trihexyphenidyl
Anticholinergic uses and MOA
- treat parkinson’s disease and extrapyramidal effects
- Block acetylcholine receptors
- Cause drowiness
Monoamine Oxidase Inhibitors (MAOIs) meds
- Isocaboxazid
- Phenelzine
- Selegiline transdermal
- Tranylcypromine
Monoamines Oxidase Inhibitors (MAOIs) use and MOA
- treats major depression
- Blocks monoamine oxidase ( oxidase break down dopamine, serotonin, norepinephrine)
- Increase serotonin, norepinephrine and dopamine levels
- Avoid food containing tyramine (i.e., old and stinky)
- Avoid drugs that increase same neurotransmitters ( antidepressants, cold meds, meperidine, triptan)
___________ process produces high levels of tyramine
fermenting
Tyramine and _____________ cause a patients blood pressure to become too high
norepinephrine
(hypertension can manifest as a headache)
Serotonin syndrome is characterized by an altered _______ status
mental
(also high fever, sweating and clonus)
2. Clonus is involuntary rhythmic muscle contraction
Many patients that take MAOI experience __________
orthostatic hypotension