neurodegenerative Flashcards

(57 cards)

1
Q

Loss of intrinsic GABAergic neurons of the of the Vladimir Putin(caudate putamen)

A

Huntington’s disease

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2
Q

Excessive cortical activity, chorea, hyperkinesia

A

Huntington’s disease
chorea-a neurological disorder characterized by jerky involuntary movements affecting especially the shoulders, hips, and face.

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3
Q

what are lewy bodies?

A

abnormal intracellular proteins clump or aggregate
a synuclein ubiquitin
Parkinson’s

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4
Q

Progressive degeneration of y-aminobutyric acid (GABA) neurons in the basal ganglia and cortex

A

Huntington disease

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5
Q

And anti viral agent used to treat mild to moderate Parkinson disease, Anti cholinergic properties

A

Amantadine/Symmetrel

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6
Q

loss of intrinsic cortical neurons beginning in the entorhinal cortex that spreads to the whole cortex resulting in a loss of memory and logical thinking

A

Alzheimer’s disease

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7
Q

Potent dopamine D1 and D2 receptor agonist

A

Apomorphine(apokyn)

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8
Q

name two anticholinesterase used to treat Alzheimer’s

A

donepezil(Aricept)

galantamine (razadyne)

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9
Q

With this disease there is a marked decrease in cholinergic neuron activity as a result these patients are very sensitive to central nervous system effects of muscarinic antagonist

A

Alzheimer’s patients

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10
Q

Parkinson’s disease is an issue with the neurotransmitter______ and decreased activation of the _______pathway which results and an increased activation of the_______ pathway. Parkinson’s is a ____kinetic disorder.

A

Parkinson’s disease there’s an issue with the neurotransmitter dopamine and decreased activation of the direct pathway which results in an increased activation of the indirect pathway. Parkinson’s is a hypokinetic disorder.

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11
Q

these drugs are used to treat huntington’s by decreasing dopamine neurotransmission, depletion of dopamine and nerve terminals by inhibition of VMAT

A

tetra-benazine/ xenazine

deu-tetra-benazine/ austedo

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12
Q

side effect of being metabolised to methamphetamine or L amphetamine which may account for the side effect of anxiety and insomnia

A

Selegine/eldepryl-selective irreversible MAOB inhibitor

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13
Q

GABA and decreased indirect pathway, which disease?

A

Huntington’s

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14
Q

Parkinson’s disease also results in some neurodegenerative signs related to autonomic degeneration
4

A

orthostatic hypotension
Significant autonomic dysfunction-hemodynamic instability
Bowel and bladder and mobility
Incontinence

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15
Q

Major side effects similar to carbidopa-levodopa/Sinemet-orthostatic hypotension, nausea vomiting Constipation, psychotic reactions, cardiac dysrhythmias, dyskinesias

A

Apomorphine(apokyn)

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16
Q

What is the longer duration patch form of Ropinirole/requip

A

Rigatoni

Rotigone/neupro

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17
Q

Parkinson’s disease can also include some non motor cognitive and emotional symptoms such as?

A
fatigue 
loss of interest in religion 
Alexithymia-Loss of one's ability to recognize one's own emotions as well as the emotions of others
dementia 
Depression of mood
Anxiety
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18
Q

a key relay station in the initiation and control of coordinated patterns of movement

A

the basal ganglia/basal nuclei

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19
Q

these drugs treat Huntington’s disease by blockade of postsynaptic dopamine

A

Antipsychotic drugs haloperidol and chlorpromazine

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20
Q

b-amyloid, tau protein which disorder

A

Alzheimer’s

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21
Q

Loss of dopamine neurons of the substantia nigra that innervate the basal nuclei (basal ganglia)

A

Parkinson’s disease

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22
Q

side effects include may exacerbate carbidopa-levodopa/Sinemet induced dyskinesias, confusing and hallucinations

A

Selegine/eldepryl-selective irreversible MAOB inhibitor

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23
Q

why are typical antipsychotics not administered to Parkinson disease patients

A

blocking D2

typical antipsychotics are D2 antagonist

24
Q

What causes the Parkinson psychosis hallucinations and delusions

25
A muscarinic receptor antagonist used to reduce cholinergic dominance in Parkinson's
Benztropine(Cogentin)
26
Parkinson's adjunct therapy that peripherally inhibits COMT-Blocks conversion of L-DOPA to 3-O-methyldopa increasing L-DOPA availability
Entacapone/comtan
27
Acts on dopamine one and two, a rescue medication, short acting, approved for subq doses? this drug must be taken with what? How must the IV infusion be administered?
Apomorphine(apokyn) D1&2 agonist Antiemetic long term in-dwelling venous catheter
28
name a positive allosteric modulator of nicotinic acetylcholine receptors used to treat Alzheimer's
galantamine (razadyne) | anticholinesterase
29
What's some anesthetic implications for Parkinson's disease
Short half life of L-DOPA, frequent doses-may have to administer and long surgeries avoid dopamine antagonists avoid dopamine receptor blockade for PONV prophylaxis
30
What causes the adverse side effects of dopamine?
Dopamine is metabolised in norepinephrine and epinephrine in the CNS and in the periphery. side effects are what you would expect from high catecholamine levels
31
Inhibits the metabolism of L-DOPA in the periphery by action on AADC(aromatic amino acid decarboxylase)
Carbidopa/sinemet
32
dopamine and decreased direct pathway, which disease?
Parkinson's
33
Noncompetitive glutamate NMDA receptor antagonists used to treat Alzheimer's
Memantine/namzaric
34
The treatment strategy of which disease is to decrease dopamine neurotransmission? what mechanism of the disease causes this to be a solution?
Huntington disease because there is a destruction of the GABA neurons in the basal ganglia and cortex/indirect pathway, the dopamine mediated direct pathway is overactive.
35
an inverse agonist at serotonin 5 HT-2A receptors-
pimavanserin(nuplazid) pimps might work out of vans too the one that's similar to LSD far out man hippies live in vans like Brennan
36
Dead and dying nerve cells contain neurofibrillary tangles which are made up of twisted strands of tau protein
Alzheimer's Tau protein stabilize microtubules, Microtubules provide platforms for intracellular transport Toxic b amyloid oligomers Impair basic neuronal processes and activate immune system causing inflammation
37
What might interact with carbidopa-levodopa/sinemet reducing its efficacy?
Pyridoxine(vitamin B6) accelerate systemic metabolism of levodopa by enhancing the effectiveness of decarboxylase thereby decreasing availability of the amino acid to the brain
38
Name of dopamine receptor agonist primarily at D2, adjunct Parkinson therapy
Ropinirole/requip
39
To prevent a life threatening hypertensive crisis and hyperpyrexia, non selective Mao inhibitors should be discontinued how many days before carbidopa-levodopa/Sinemet is administered
14 days
40
Parkinson's is a profound loss of dopaminergic neurons where?
substantia nigra
41
a synuclein ubiquitin which disorder
Parkinson's disease
42
Used for management of drug induced parkinsonism and schizophrenic patients treated with antipsychotics(potent D2 receptor antagonist), Preferred treatment of neuroleptic induced extrapyramidal syndrome
Benztropine(Cogentin) Used for management of drug induced parkinsonism and schizophrenic patients treated with antipsychotics(potent D2 receptor antagonist), Preferred treatment of neuroleptic induced extrapyramidal syndrome
43
the basal ganglia consist of three structures
Caudate nucleus Putamen Globus pallidus
44
Describe some of the characteristic motor symptoms of Parkinson's disease
resting tremor(most obvious early symptom) rigidity and stiffness stooped posture shuffling gait poor righting reflex-balance Bradykinesia-slowness of movement, difficulty walking Difficulty speaking and swallowing Difficulty writing (tiny, crowded handwriting) mask like face in advanced stages of Parkinson's disease patients become virtually immobile
45
What are two common characteristics of neurodegenerative disorders?
accumulation abnormal protein | progressive and irreversible loss of neurons in the brain
46
Within the basal nuclei Which pathway facilitates movement and which pathway inhibits movement?
Direct pathway facilitates movement | Indirect pathway inhibits movement
47
what part of the brain does Alzheimer's begin in?
entorhinal cortex
48
Adverse side effects include cardiac arrhythmias and transit tachycardia, nausea and vomiting, and orthostatic hypotension. what is the nausea and vomiting caused by?
L-Dopa | dopamine D receptors on the chemo trigger zone
49
carbidopa-levodopa/sinemet is contraindicated in combination with which drugs? two different classes
dopamine receptor antagonist-typical antipsychotic drug chlorpromazine, Thorazine haloperidol, Haldol flupenthixol, fluanxol Non selective irreversible Mao inhibitors Phenelizine/nardil Ipronizad(marsilid, iprazid, ipronid
50
Huntington protein which disorder
Huntington’s disease
51
This disease has a loss of dopaminergic input/inhibition, which leads to acetylcholine mediated excitation of inhibitory GABA neurons. GABA has done let loose like it's spring break in Myrtle Beach 1995.
Parkinson disease
52
dopamine precursor that crosses the blood brain barrier by active transport to stimulate dopamine synthesis
levodopa(l-dopa)
53
What treatment strategy/drug would block dopamine degradation in the brain?
Selegine/eldepryl-selective irreversible MAOB inhibitor
54
Administration of this drug has the benefits of a lower dose of L-DOPA being administered, more L-DOPA reaches the brain, reduction in peripheral side effects, resulting in less peripheral conversion of L-DOPA to dopamine and norepinephrine
carbidopa-levodopa/sinemet
55
The disease process progresses to include lateral temporal and parietal lobes and when severe associated with loss of neurons throughout the cortex including frontal and occipital lobe, severe cortical atropy in later stages
Alzheimer's
56
Usually develops in the mid 30s to 40s, early symptoms include mental decline, problems with mood and cognition, general lack of coordination and an unsteady gait. as the disease advances coordinated movements become difficult, uncoordinated involuntary jerking or twitching movements known as chorea, further mental decline into dementia
Huntington's disease
57
Reduced cortical stimulation hypokinetic disorder
Parkinson's