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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Anti-inflammatory, analgesic and antipyretic activity of methanolic Tecomaria capensis leaves extract.
Asian Pacific Journal of Tropical Biomedicine 2012 November
OBJECTIVE: To evaluate the analgesic, anti-inflammatory and antipyretic activity of methanolic Tecomaria capensis (T. capensis) leaves extract using different models in rats.
METHODS: Methanolic T. capensis leaves extract (100, 300, 1000 and 2000 mg/kg body weight) was given to rats orally to observe acute toxicity, and observed for 14 days. Analgesic activity was evaluated using tail immersion and formalin induced paw licking models in rats. Anti-inflammatory activity was evaluated using carrageenan induced paw edema model in rats. Antipyretic activity was evaluated using brewer's yeast induced pyrexia model in rats. Methanolic T. capensis leaves extract were given at dose of 100, 200 and 500 mg/kg p.o.
RESULTS: Results demonstrated that the no mortality was reported even after 14 days. This indicated that the methanol extract was safe up to a single dose of 2 000 mg/kg body weight. Methanolic T. capensis leaves extract (100, 200 and 500 mg/kg p.o.) significantly increased the latency period in the tail immersion test, reduced the licking time in both the neurogenic and inflammatory phases in the formalin test. Methanolic T. capensis leaves extract (100, 200 and 500 mg/kg p.o.) significantly prevented increase in volume of paw edema. Methanolic T. capensis leaves extract at the doses of (100, 200 and 500 mg/kg p.o.) significantly decreased the rectal temperature of the rats.
CONCLUSIONS: This study exhibites that methanolic T. capensis leaves extract possesses analgesic, anti-inflammatory and antipyretic activity which may be mediated by the central and peripheral mechanisms.
METHODS: Methanolic T. capensis leaves extract (100, 300, 1000 and 2000 mg/kg body weight) was given to rats orally to observe acute toxicity, and observed for 14 days. Analgesic activity was evaluated using tail immersion and formalin induced paw licking models in rats. Anti-inflammatory activity was evaluated using carrageenan induced paw edema model in rats. Antipyretic activity was evaluated using brewer's yeast induced pyrexia model in rats. Methanolic T. capensis leaves extract were given at dose of 100, 200 and 500 mg/kg p.o.
RESULTS: Results demonstrated that the no mortality was reported even after 14 days. This indicated that the methanol extract was safe up to a single dose of 2 000 mg/kg body weight. Methanolic T. capensis leaves extract (100, 200 and 500 mg/kg p.o.) significantly increased the latency period in the tail immersion test, reduced the licking time in both the neurogenic and inflammatory phases in the formalin test. Methanolic T. capensis leaves extract (100, 200 and 500 mg/kg p.o.) significantly prevented increase in volume of paw edema. Methanolic T. capensis leaves extract at the doses of (100, 200 and 500 mg/kg p.o.) significantly decreased the rectal temperature of the rats.
CONCLUSIONS: This study exhibites that methanolic T. capensis leaves extract possesses analgesic, anti-inflammatory and antipyretic activity which may be mediated by the central and peripheral mechanisms.
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