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Details

Autor(en) / Beteiligte
Titel
Qualea parviflora Mart.: An integrative study to validate the gastroprotective, antidiarrheal, antihemorragic and mutagenic action
Ist Teil von
  • Journal of ethnopharmacology, 2010-02, Vol.127 (2), p.508-514
Ort / Verlag
Shannon: Elsevier Ireland Ltd
Erscheinungsjahr
2010
Quelle
Elsevier ScienceDirect Journals
Beschreibungen/Notizen
  • Qualea parviflora Mart. is a medicinal species commonly found in the Brazilian Cerrado biome. Based on ethnopharmacological data, methanolic extract from Qualea parviflora (QP) bark was evaluated for its antiulcer, analgesic, anti-hemorrhagic, mutagenic and anti- Helicobacter pylori activities. The gastroprotective action of the extract was evaluated in rodent experimental models (HCl/ethanol, ethanol or NSAID). We also evaluated mutagenic effect (Ames assay), anti- Helicobacter pylori, anti-hemorrhagic action, analgesic and inflammatory effects (hot-plate test and carrageenin-induced hind paw edema) of methanolic extract from Qualea parviflora. QP (500 mg/kg, p.o.) was able to protect gastric mucosa against HCl/ethanol solution (77%), absolute ethanol (97%), and also against injurious effect of NSAID (36%). When QP was challenged with sulfhydryl depletor compound, the gastroprotective action of extract was abolished. QP treatment was able to maintain the GSH level and show a concentration-dependent inhibition effect on the lipid peroxidation. QP present anti- Helicobacter pylori effect (MIC = 75 μg/mL), anti-hemorrhagic and antidiarrheal action but not present analgesic or anti-inflammatory effect. methanolic extract from Qualea parviflora had gastroprotective effect related to the increase of gastric mucosa defensive factors such PGE 2 levels and maintain the basal gastric glutathione levels. The methanolic extract also showed anti- Helicobacter pylori activity, anti-hemorrhagic effect and antioxidant action, but absence of analgesic, mutagenic and toxic effects, a profile that adds safety to its use.

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