FMS Week 10: Pharmacotherapy of Inflammation & SLE Flashcards
Histamine Synthesis
Functions of Histamine
4 Listed
Histamine Storage Sites
3 Listed
Histamine Receptors
4 Listed
- H1
- H2
- H3
- H4
Histamine Receptor: H1
Signaling Pathway and Receptor locations
6 Listed
Histamine Receptor: H2
Signaling Pathway and Receptor locations
6 Listed
Histamine Receptor: H3
Signaling Pathway and Receptor locations
3 Listed
Histamine Receptor: H4
Signaling Pathway and Receptor locations
3 Listed
Organ Systems that respond to H1 and H2
4 Listed
- Cardiovascular
- Gastrointestinal
- Pulmonary
- Nervous System
What kind of receptor are the Histamine receptors
7TM G protein-coupled receptors
Cardiovascular interactions with histamine and receptor type
3 Listed
Histamine Interactions with Gastrointestinal System and receptor type
1 Listed
Histamine Interactions with Pulmonary System and receptor type
1 Listed
Histamine Interactions with Nervous System and receptor type
1 Listed
Intradermal Wheal-and-flare Response Properties
3 Listed
Mechanism of histamine-induced vasodilation
Increase in NO
Increase in PGI2
Mechanism of histamine-induced edema
Histamine Antagonists AKA
Anti-histimines
1st Generation H1 receptor competitive antagonists Examples
3 Listed
- Chlorpheniramine
- Diphenhydramine
- Promethazine
1st Generation H1 receptor competitive antagonists Duration
Short duration 3 - 6 hours
1st Generation H1 receptor competitive antagonists additional effects
- anticholinergic
- anti-α-adrenergic
- antiserotonergic
1st Generation H1 receptor competitive antagonists: Do they cause Sedation?
Yes, causes sedation
1st Generation H1 receptor competitive antagonists additional effects additional uses
2 Listed
- Antiemetic (against vomiting and nausea
- Anti-motion sickness
2nd/3rd Generation H1 Receptor Competitive Antagonists Additional Effects
Not useful for nausea or motion sickness
2nd/3rd Generation H1 Receptor Competitive Antagonists: Do they cause sedation
Less sedation than 1st generation H1 blockers
2nd/3rd Generation H1 Receptor Competitive Antagonists Duration
Long Duration 12-24 hours
2nd/3rd Generation H1 Receptor Competitive Antagonists Examples
- Ioratadine
- fexodenadine
- cetirizine
- desloratadine
2nd/3rd Generation H1 Receptor Competitive Antagonists Other Receptor Activity
Little-to-no
- anticholinergic
- anti-α-adrendergic
- anti-serotonergic
actions
Uses of H2 receptor antagonists
6 Listed
NSAIDS AKA
Nonsteroidal Anti-inflammatory Drugs
Aspirin is an acid or a base?
Aspirin is a weak acid
Aspirin is a ________ NSAID
Classic
Aspirin effects
4 Listed
- Analgesic (pain reliever)
- antipyretic (reduces fever)
- anti-platelet (prevents thrombosis)
- anti-inflammatory agent
Aspirin qualities of absorption
- rapidly and completely absorbed from the stomach and intestine in unionized form
Aspirin Mechanism of Action
Irreversibly inhibits prostaglandin biosynthesis by acetylating the enzyme cyclooxygenase (COX)
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Aspirin reduces risk in people 50 and older
Common to all Salicylate-like NSAIDs
7 Listed
Aspirin and Cancer risk
4 listed
Prostaglandins and Cyclooxygenase
6 listed
Cyclooxygenase converts Arachidonic acid into cyclic endoperoxide intermediates and prostaglandins
- PGF2
- PGE1
- PGE2
- PGD2
- Prostacyclin (PGI2)
Cyclooxygenase 1 vs 2
4 Main things Listed
- Cox-1 is constitutive
- Cox-1 Homeostasis
- Cox-2 is inducible
- Cox-2 inflammation
PGE2 is involved in all processes leading to?
3 listed
The classic signs of inflammation
- redness
- swelling
- pain
PGI2 is rapidly produced following?
Tissue Injury
PGI2 is an important mediator of?
3 Listed
edema and pain associated with acute inflammation
PGI2 is most abundant prostanoid in?
Synovial fluid in Human arthritic knee joints
PGD2 is produced by?
2 Listed
antigen-presenting dendritic cells and Th2 cells
PGD2 is suggested to play a role in?
antigen-specific immune system responses