Parkinsons Disease Flashcards
(47 cards)
What happens in the brain
Dopamine levels decrease in the basal ganglia
Parkinson’s leads to the disorders of what?
Movement
Slow or gradual onset
Gradual
Are the symptoms symmetrical or asymmetrical and what are the triad of features?
Asymmetrical, then developed to be bilateral
Traid of features:
• resting tremor
• rigidity
• Bradykinesia (slowness of movement)
Function of the basal ganglia?
• co-ordination
• movement
• motor control
Non-motor features?
• depression
• sleep disturbances/insomnia
• loss of sense of smell
• cognitive impairment
• postural instability
• swallowing issues
• weight loss
- orstatic hypotension
- contipation
What are Lewy bodies
Abnormal fold of alpha synuclien
Where are they located in the brain
substantia nigra - basal gnalia
What does the substantia nigra control
Movement
Which gender is it more common in
Males
PD can start in the body or brain first. If it starts in the brain first, what does it affect first
The olfactory system (sense of smell) then spreads to brain
PD can start in the body or brain first. If it starts in the body first, what does it affect first
Gut, then spreading to Nervous system
Causes of PD
Pesticide
Head trauma
BB
What imaging is used in diagnosis
PET & SPECT
Where is levadopa found
Naturally in the brain
It is a naturally occurring L-isomer
To prevent peripheral metabolic what is levodopa given with
A dopa decarboxylase inhibitor
Does levodopa have a long or short t1/2
Short
What are the first lines?
Levodopa
MOA-B inhibitors
Dopamine antagonist (non-ergot-derived OR ergot derived)
Which class does pramipexole, ropinirole and Rotigotine belong to
Non ergot derived dopamine agonist
—————— (I forgot to add)
Ergot derived
• bromocriptine, cabergoline
Which of these is given transdermally
Rotigotine
Which class does Selegiline and rasagiline belong to
MAO-B inhibitors
Which drug is given when PD effects QoL
Levodopa
MOA of MOA-B inhibitor
Prevents breakdown of dopamine
Which drugs stimulate dopamine receptor -
Dopamine agonist