MSK pharm Flashcards
Role of prostaglandins in inflammation
PGI2, PGD2 and PGE2 are vasodilators
(edema, erythema)
Role of prostaglandins in pain
PGI2 and PGE2 sensitize nerve endings to bradykinin, histamine and substance P
Role of prostaglandins in gastric mucose
PGI2
Role of prostaglandings in protection of the gastic mucosa
PGI2
Role of prostaglandins in maintenance of renal blood flow
PGE2
Role of prostaglandins in platelet aggregation
PGI2 and PGD2 inhibit platelet aggregation
TXA2 stimulates platelet aggregation
___________ (prostaglandin) contracts uterus
PGD2
__________ keeps ductus arteriosus open following birth.
PGE2
Where is COX3 primarily found?
Heart and cerebral cortex
3 phases of inflammatory response
Acute transcient
- Local vasodilation and increased capillary permeability
Delayed, subacute
- Infiltration of leukocytes and phagocytic cells
Chronic proliferative
- Tissue degeneration and fibrosis occur
Shared characteristics of all NSAIDs
Analgesic, antiinflammatory, and antipyretic
Acetylation of COX-2 retains the COX activity although the reaction produces a different product, _________.
15-R-HETE