Cyclooxygenase inhibitory flavonoids from the stem bark of Semecarpus anacardium Linn.
The ethyl acetate extract of stem bark of Semecarpus anacardium showing in vivo anti-in fl ammatory activity in carrageenan induced rat paw edema assay was investigated in order to identify its active compounds. Chemical investigation of the ethyl acetate extract of S.anacardium afforded 3,4,2',4'-tetrahydroxychalcone (butein) and 7,3',4'-trihydroxy fl avone. Evaluation of COX-1 inhibitory activity of 3,4,2',4'-tetrahydroxychalcone and 7,3',4'-trihydroxy fl avone provided the IC(50) values of 28.4 and 36.7 micro M respectively. Further investigation of these compounds for COX-2 inhibitory activity revealed moderate potency towards this enzyme.
Department of Natural Products, National Institute of Pharmaceutical Education and Research, Punjab, India.
C
C
Selvam
Sanjay M
SM
Jachak
K K
KK
Bhutani
D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D002351:Carrageenan; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; D052246:Cyclooxygenase 2 Inhibitors; D016861:Cyclooxygenase Inhibitors / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D004487:Edema / Q000139:chemically induced / Q000517:prevention & control*; D020128:Inhibitory Concentration 50; D007527:Isoenzymes / Q000037:antagonists & inhibitors; D008297:Male; D008565:Membrane Proteins; D008517:Phytotherapy; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D018547:Plant Stems; D011451:Prostaglandin-Endoperoxide Synthases; D051381:Rats; D017207:Rats, Sprague-Dawley; D031023:Semecarpus
D000894:Anti-Inflammatory Agents, Non-Steroidal; D052246:Cyclooxygenase 2 Inhibitors; D016861:Cyclooxygenase Inhibitors; D007527:Isoenzymes; D008565:Membrane Proteins; D010936:Plant Extracts; D002351:Carrageenan; D051545:Cyclooxygenase 1; D051546:Cyclooxygenase 2; D011451:Prostaglandin-Endoperoxide Synthases; C496513:Ptgs1 protein, rat