title: Studies on the mechanism of anti-inflammatory and anti-ulcer activity of Pluchea indica--probable involvement of 5-lipooxygenase pathway.
abstract: The effect of the methanolic fraction of Pluchea indica Less. root extract was evaluated on various models of inflammation and ulcer in vivo to assess the role of P. indica on the 5-lipoxygenase pathway of prostaglandin synthesis. Studies presented here reveal significant antiinflammatory activity of the fraction on Arachidonic acid, Platelet activation factor and Compound 48/80-induced paw oedema. There was significant inhibition of spontaneous as well as compound 48/80-induced histamine release from mast cells. Ulcer studies revealed significant protective action of the fraction on indomethacin, alcohol and indomethacin-alcohol induced ulceration. There was significant decrease of gastric volume and acidity in pylorus ligated rats. Studies also showed, significant protective action of the same on gastric mucosa.
authors.affiliation: Dept of Pharmaceutical TEchnology, Jadavpur University, Calcutta, India.
authors.forename: T
authors.initials: T
authors.lastname: Sen
authors.forename: T K
authors.initials: TK
authors.lastname: Ghosh
authors.forename: A K
authors.initials: AK
authors.lastname: Chaudhuri
mesh_terms: D000818:Animals; D000893:Anti-Inflammatory Agents / Q000494:pharmacology*; D000897:Anti-Ulcer Agents / Q000494:pharmacology*; D001094:Arachidonate 5-Lipoxygenase / Q000378:metabolism*; D016718:Arachidonic Acid / Q000378:metabolism; D000431:Ethanol / Q000494:pharmacology; D005753:Gastric Mucosa / Q000187:drug effects; D006636:Histamine Release / Q000187:drug effects; D008297:Male; D008407:Mast Cells / Q000187:drug effects; D010936:Plant Extracts / Q000494:pharmacology*; D010972:Platelet Activating Factor / Q000494:pharmacology; D051381:Rats; D003189:p-Methoxy-N-methylphenethylamine / Q000494:pharmacology
chemical_list: D000893:Anti-Inflammatory Agents; D000897:Anti-Ulcer Agents; D010936:Plant Extracts; D010972:Platelet Activating Factor; D016718:Arachidonic Acid; D000431:Ethanol; D003189:p-Methoxy-N-methylphenethylamine; D001094:Arachidonate 5-Lipoxygenase