Objective: To evaluate the antinociceptive, anti-inflammatory and antidiarrheal activities of the ethanolic calyx extract of Hibiscus sabdariffa Linn. in mice. Methods: In the present study, the dried calyxes of H. sabdariffa were subjected to extraction with 95% ethanol and the extract was used to investigate the possible activities. Antinociceptive activity of the extract was evaluated by using the acetic acid-induced writhing test. The anti-inflammatory effect of the extract was tested by using the xylene-induced ear edema model mice. Castor oil-induced diarrheal model mice were used to evaluate the antidiarrheal activity of the extract. Results: In acetic acid-induced writhing test, the extract produced inhibited writhing in mice siginificantly compared with the blank control (P<0.01). The extract showed significant inhibition of ear edema formation in xylene-induced ear edema model mice in a dose-related manner compared with the blank control (P<0.01). The extract demonstrated a significant antidiarrheal activity against castor oil-induced diarrheal in mice in which it decreased the frequency of defecation and increased the mean latent period at the doses of 250 and 500 mg/kg body weight (P<0.01). Conclusion: The above mentioned findings indicate that the calyx extract of H. sabdariffa possesses significant antinociceptive, anti-inflammatory and antidiarrheal activities that support its uses in traditional medicine.

OBJECTIVETo explore the efficacy of ethanolic leaf extract of Typhonium trilobatum L. Schott in treating diarrhea, pain and inflammation using experimental models.

METHODSIn 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.

RESULTSThe 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.

CONCLUSIONSThese results suggest that the extract possesses significant analgesic, anti-inflammatory and anti-diarrheal activities that support to the ethnopharmacological uses of this plant.

Analgesics ; chemistry ; pharmacology ; Animals ; Anti-Inflammatory Agents ; chemistry ; pharmacology ; Antidiarrheals ; chemistry ; pharmacology ; Diarrhea ; chemically induced ; drug therapy ; Disease Models, Animal ; Edema ; chemically induced ; drug therapy ; Female ; Magnoliopsida ; chemistry ; Male ; Mice ; Phytochemicals ; chemistry ; Plant Extracts ; chemistry ; pharmacology ; Plant Leaves ; chemistry ; Rats ; Toxicity Tests, Acute