title: Effect of Flabellaria paniculata Cav. extracts on gastric ulcer in rats.
abstract: BACKGROUND
  The leaves and root of Flabellaria paniculata (Malpighiaceae) are frequently used in the treatment of wounds and ulcers in Nigerian folk medicine. The purpose of this study was to compare the effect of ethanolic extracts from the leaves (FPL) and root (FPR) of F. paniculata on gastric ulcers in rats.
  
  
  METHODS
  The effect of FPL and FPR (100, 200 and 400 mg/kg) was evaluated in ethanol and indomethacin gastric ulcer models. Control groups for FPL and FPR were orally treated with 3% Tween 20 and distilled water respectively. FPL was further investigated in pylorus ligation model. Misoprostol and cimetidine were used as reference.
  
  
  RESULTS
  FPL significantly (P < 0.05) reduced gastric lesions by 82.22% and 67.32% in ethanol and indomethacin induced ulcer models at 100 mg/kg respectively while FPR (100, 200 and 400 mg/kg) did not exert significant effect in the two models. In pylorus ligation model, FPL exerted a significant preventive antiulcer effect as indicated by reduction in gastric volume at 200 and 400 mg/kg doses. Only 400 mg/kg of the extract exerted a significant reduction in ulcer index when compared with the control group. The oral route LD50 of FPL was estimated to be 4570 mg/kg while that of FPR was 2754 mg/kg. The LD50 in intraperitoneal injection was estimated to be 1202.26 and 1380.38 mg/kg for FPL and FPR respectively. The phytochemical investigation showed that both extracts possess triterpenoids and saponin, while the presence of flavonoid was detected only in FPL.
  
  
  CONCLUSIONS
  The results of this study indicated that FPL and not FPR is effective against experimentally induced gastric ulcers. The presence of varied phytochemical constituents probably influenced the pharmacological differences between the two extracts.
authors.affiliation: Department of Pharmacognosy, Faculty of Pharmacy, University of Lagos, Lagos, Nigeria. toyin_sofidiya@yahoo.co.uk
authors.forename: Margaret O
authors.initials: MO
authors.lastname: Sofidiya
authors.forename: Lilian
authors.initials: L
authors.lastname: Agufobi
authors.forename: Abidemi J
authors.initials: AJ
authors.lastname: Akindele
authors.forename: Johnson A
authors.initials: JA
authors.lastname: Olowe
authors.forename: Oluwole B
authors.initials: OB
authors.lastname: Familoni
mesh_terms: D000818:Animals; D000897:Anti-Ulcer Agents / Q000032:analysis / Q000494:pharmacology / Q000627:therapeutic use*; D002927:Cimetidine / Q000494:pharmacology; D004195:Disease Models, Animal; D005260:Female; D005750:Gastric Juice / Q000187:drug effects; D005753:Gastric Mucosa / Q000187:drug effects* / Q000473:pathology; D007928:Lethal Dose 50; D008297:Male; D029581:Malpighiaceae / Q000737:chemistry*; D016488:Medicine, African Traditional; D016595:Misoprostol / Q000494:pharmacology; D009549:Nigeria; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry / Q000494:pharmacology / Q000627:therapeutic use*; D018515:Plant Leaves; D018517:Plant Roots; D051381:Rats; D011919:Rats, Inbred Strains; D012503:Saponins / Q000032:analysis / Q000494:pharmacology / Q000627:therapeutic use; D013276:Stomach Ulcer / Q000188:drug therapy*; D014315:Triterpenes / Q000032:analysis / Q000494:pharmacology / Q000627:therapeutic use
chemical_list: D000897:Anti-Ulcer Agents; D010936:Plant Extracts; D012503:Saponins; D014315:Triterpenes; D016595:Misoprostol; D002927:Cimetidine