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1.
Asian Pacific Journal of Tropical Biomedicine ; (12): 792-797, 2014.
Article in Chinese | WPRIM | ID: wpr-951854

ABSTRACT

Objective: To investigate potential antioxidant, antimicrobial, cytotoxic and analgesic activities of ethanolic extract of Mentha arvensis L. in different in vivo and in vitro experimental models. Methods: In vitro DPPH radical scavenging assay was used to evaluate the antioxidant activity of the plant extract. In vivo analgesic activity was carried out by acetic acid-induced writhing test in Swiss albino mice. All studies in mice were undertaken at the doses of 250 and 500 mg/kg body weight. Antibacterial activity was studied by disk diffusion assay against some Gram-positive and Gram-negative bacterial strains. Brine shrimp lethality assay was used to investigate cytotoxicity effects of the plant extract. Results: The extract showed free radical scavenging activity in the DPPH assay (IC

2.
Asian Pacific Journal of Tropical Biomedicine ; (12): 722-726, 2012.
Article in English | WPRIM | ID: wpr-312480

ABSTRACT

<p><b>OBJECTIVE</b>To explore the efficacy of ethanolic leaf extract of Typhonium trilobatum L. Schott in treating diarrhea, pain and inflammation using experimental models.</p><p><b>METHODS</b>In the present study, acetic acid-induced writhing, xylene-induced ear edema and castor oil-induced diarrheal model were used to evaluate the analgesic, anti-inflammatory and anti-diarrheal activities, respectively. Acute toxicity test was carried out to fix the safe doses of the plant extract.</p><p><b>RESULTS</b>The plant extract demonstrated a significant inhibition of writhing (P<0.01) compared with the control group in acetic acid-induced writhing test in mice. The extract also significantly inhibited the xylene induced ear edema formation (P<0.05). In anti-diarrheal test, the extract significantly decreased the frequency of defecation and increased the mean latent period (P<0.01) in castor oil-induced diarrheal model mice at the doses of 250 and 500 mg/kg body weight.</p><p><b>CONCLUSIONS</b>These results suggest that the extract possesses significant analgesic, anti-inflammatory and anti-diarrheal activities that support to the ethnopharmacological uses of this plant.</p>


Subject(s)
Animals , Female , Male , Mice , Rats , Analgesics , Chemistry , Pharmacology , Anti-Inflammatory Agents , Chemistry , Pharmacology , Antidiarrheals , Chemistry , Pharmacology , Diarrhea , Drug Therapy , Disease Models, Animal , Edema , Drug Therapy , Magnoliopsida , Chemistry , Phytochemicals , Chemistry , Plant Extracts , Chemistry , Pharmacology , Plant Leaves , Chemistry , Toxicity Tests, Acute
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