L67-68 Watts antidepressants Flashcards
3 types of depression and rough estimate of prevalency
reactive (60%)
Major depressive (25%)
Bipolar affective (15%)
some physiological clinical features of depression
decreased sleep
appetite changes
fatigure
psychomotor dysfxn
some psychological clinical features of depression
dysphoric mood
worthlessness
guilt
loss of interest/pleasure *
2 cognitive clinical features of depression
decreased concentration
suicidal ideation
“biogenic amine” hypothesis of depression:
- _________ causes depression by depleting ___ and ___ from vesicles
reserpine
NE
5HT
“biogenic amine” hypothesis of depression:
agents that increase ___ and ___ are effective for treating depression
5HT and NE
“biogenic amine” hypothesis of depression:
Genetic polymorphisms in ____ promotor
SERT
“biogenic amine” hypothesis of depression:
Alterations in ________ and __ receptors
5HT1A/2C and a2
neuroendocrine hypothesis of depression thing Watts said to know
know that HPA axis is involved and it is overactivity of HPA axis that causes excessive release of CRF (causes core depressive sxs)
CRF acts on _____ receptors which leads to disruption of what 2 things
CRF1 receptors, sleep and sexual behaviors
3rd neurotrophic hypothesis of depression key message according to Watts
Brain-derived neurotrophic factor (BDNF) is critical in neural plasticity, resilience, and neurogenesis
dendritic ________ start to disappear in depression
sprouts
Integration of hypotheses of depression (shit he wants us to know)
____ and ____ abnormalities regulate BDNF levels
HPA
steroid
Integration of hypotheses of depression (shit he wants us to know)
Hippocampal glucocorticoid receptors are activated by _____ during stress which (increases/decreases) BDNF
cortisol
decrease
Integration of hypotheses of depression (shit he wants us to know)
chronic activation of _____ receptors increases BDNF signaling
monoamine
Integration of hypotheses of depression (shit he wants us to know)
chronic activation of monoamine receptors leads to a downregulation of the ____ axis
HPA
how long does it take most antidepressants to show effects?
days to weeks
(next slide says 2-3 weeks)
what two neurotransmitters are normally degraded by monoamine oxidase
NE and 5HT
MAOis cause more NE and 5HT released from ______ into the _______
vesicles
synapse
2 non-selective MAOi’s
phenelzine (nardil)
Tranylcypromine (parnate)
2 MAO-B selective drugs
selegiline (eldepryl/ensam)
Safinamide (xadago)
1 MAO-A selective drug
Moclobemide (manerix)
Reversible
A. MAO-A
B. MAO-B
both
used in europe but not here yet
A. MAO-A
B. MAO-B
A. MAO-A
6 severe side effects of MAOi’s
headache
drowsiness
dry mouth
weight gain
hypotension
sexual dysfxn
avoid what food for what purpose in MAO’is
tyramine bc of hypertensive crisis risk
2 MAOi interactions with OTCs
cold preparations, diet pills
3 drug classes that interact with MAOi’s
TCA
SSRI
L-DOPA
what main herbal product has MAOi activity and should be avoided
st johns wort
Site of Action of Reuptake Blockers:
Orthosteric site -> _____ binds
serotonin
Site of Action of Reuptake Blockers:
allosteric sites -> _____
antidepressants bind here and block NE and 5HT into synapse
4 indications for TCAs
depression
panic disorder
chronic pain
enuresis
Why is OD/toxicity extremely dangerous in TCAs
depressed pts more likely to be suicidal *
TCA/Tertiary Amine/Secondary Amine MOA
inhibit NE and 5HT reuptake via NET and SERT
Also act as H1, a1, and antimuscarinic agonists
A. Tertiary amine TCAs
B. Secondary amine TCAs
A. Tertiary amine TCAa
causes less general side effects than the other as a whole
A. Tertiary amine TCAs
B. Secondary amine TCAs
B. Secondary amine TCAs
Imipramine:
Tert or Sec amine
tertiary
Amitriptyline:
Tert or Sec
Tertiary
imipramine metabolized into __________?
desipramine (a secondary amine)
Amitriptyline metabolized into ________?
nortriptyline, a secondary amine
Used for enuresis and ADHD
A. Imipramine
B. Amitriptyline
C. Clomipramine
D. Doxepin
A. Imipramine
Clomipramine:
Tert or Sec
Tertiary
Doxepin
Tert or Sec
Tertiary
Used for OCD
A. Imipramine
B. Amitriptyline
C. Clomipramine
D. Doxepin
C
Desipramine
Tert or Sec
secondary
Nortriptyline
Tert or Sec
secondary
Maprotiline
Tert or Sec
secondary
Better at targeting NET than SERT
A. Tertiary
B. Secondary
B. Secondary -> there is an “n” in secondary
T or F: Opening Serotonin transporter pumps is a part of the MOA of SSRIs
false, they get blocked to keep 5HT in synapse longer
I (cole) know the ssris so i’m skipping cards on that just so anyone else looking at this knows
sorry
highlighted side effect of SSRIs
anxiety for some reason
Vilazodone
A. SSRI + 5HT1A partial agonist
B. 5HT2 Antag/ SERT inhibitor
A
Vortioxetine
A. SSRI + 5HT1A partial agonist
B. 5HT2 Antag/ SERT inhibitor
A