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EICOSANOIDROLE IN INFLAMATION PRAVESH VERMA 	         M.PHARM[PHARMACOLOGY]     BABA SAHEB BHIMRAO AMBEDKAR                                                           	              UNIVERSITY,LUCKNOW,UP,India
INTRODUCTION Several factors are responsible for the inflamatory responses,likemicrobiological,immunological & toxic agents can induce the inflamation by activating a variety of humoral &cellular mediators. These factors activates lipid synthesis pathways & signaling pathways which results organ dysfunction.
FORMATIONOF EICOSANOID Pro inflamatory eicosanoid is produced by the precursor Arachidonic acid(AA). Arachidonic acid(AA) is released from membrane phospholipids by the action of Phospholipase-A2 PLA2.
INFLAMATORY MEDIATORS Pro inflamatory eicosanoid is metabolised in to prostaglandins(PGS)& Leucotrienes(LTS) by action of Cycloxygenase(COX) &Lipoxygenase(LO) enzymes,respectively. Faulty activation of COX,LO,PLA2 have been implicated in many inflamatory diseases.
Conted…. PLA2 is activated by Phospholipase-A2 activating protien(PLAP)&LO by 5-Lipoxigenase activating protien(FLAP) The inducible form of COX-2 enzyme, s normally absent in basal condition,but get induced in inflamatory state.

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Eicosanoid

  • 1. EICOSANOIDROLE IN INFLAMATION PRAVESH VERMA M.PHARM[PHARMACOLOGY] BABA SAHEB BHIMRAO AMBEDKAR UNIVERSITY,LUCKNOW,UP,India
  • 2. INTRODUCTION Several factors are responsible for the inflamatory responses,likemicrobiological,immunological & toxic agents can induce the inflamation by activating a variety of humoral &cellular mediators. These factors activates lipid synthesis pathways & signaling pathways which results organ dysfunction.
  • 3. FORMATIONOF EICOSANOID Pro inflamatory eicosanoid is produced by the precursor Arachidonic acid(AA). Arachidonic acid(AA) is released from membrane phospholipids by the action of Phospholipase-A2 PLA2.
  • 4. INFLAMATORY MEDIATORS Pro inflamatory eicosanoid is metabolised in to prostaglandins(PGS)& Leucotrienes(LTS) by action of Cycloxygenase(COX) &Lipoxygenase(LO) enzymes,respectively. Faulty activation of COX,LO,PLA2 have been implicated in many inflamatory diseases.
  • 5. Conted…. PLA2 is activated by Phospholipase-A2 activating protien(PLAP)&LO by 5-Lipoxigenase activating protien(FLAP) The inducible form of COX-2 enzyme, s normally absent in basal condition,but get induced in inflamatory state.