NSAIDs and gout Flashcards
what are the molecular inflammatory mediators?
- kinins, neuropeptides, vasoactive amines
- arachadonic metabolites
- cytokines, free radicals, proteases
what are the arachadonic acid metabolites?
PGs, thromboxanes, prostacyclin
what are the functional characteristics of NSAIDs?
analgesia
antipyretic
anti-inflammatory
primary target - PG production via COX1 and COX2
is acetaminophen an NSAID?
no
which COX enzyme is constitutively expressed?
COX1
what role do PGE2 and PGI2 play in inflammation?
edema and vascular permeability
what is the role of COX1?
homeostasis
PGs in stomach mucosa (protective)
what is the role of COX2?
production of inflammatory molecules
essential for normal kidney function
what are the nonselective NSAIDs?
acetylsalicylic acid (aspirin) ibuprofen indomethacin
what is the selective NSAID? is it for COX1 or COX2?
celecoxib
COX2
once in the blood, aspirin is hydrolyzed to what?
salicylic acid
what is the MOA of salicylic acid?
reversible COX inhibitor
does aspirin have a potential for drug interactions? why or why not?
yes
80% bound to plasma proteins
what are the low dose effects of aspirin?
analgesic, antipyretic
what are the high dose effects of aspirin?
antiinflammatory