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Artemisia scoparia – A new source of artemisinin

Bangladesh Journal of Pharmacology (Impact Factor: 1.05). 03/2010; 5(1). DOI: 10.3329/bjp.v5i1.4901
Source: DOAJ

ABSTRACT Artemisinin is considered as the most active and potent antimalarial drug. Till date Artemisia annua Linn. plant is the only source for its production The present investigation was carried out with an objective to search a new plant for artemisinin. An attempt was made on a perennial faintly odoratus herb, Artemisia scoparia Waldst et Kit. to find out an alternative of A. annua for the production of artemisinin. The yield of artemisinin was higher in aerial plant parts (0.015%) in comparison to callus culture (0.001%). The present study concluded that Artemisia scoparia contains an antimalarial drug artemisinin.

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    ABSTRACT: Ethnopharmacological relevanceArtemisia scoparia (redstem wormwood) locally known as jhahoo or jaukay, is traditionally used in pain, inflammation and febrile conditions. So far, little or no scientific work has been reported to validate its folk uses in the alleviation of pain, fever and inflammation. The present study was designed to explore the analgesic, anti-inflammatory and antipyretic effects of the Artemisia scoparia hydromethanolic extract (ASHME), and to validate its traditional use in Asia.Materials and methodsThis study made use of thermal (hot plate induced) and chemical (acetic acid induced) nociception models in mice. In addition, the mechanism of antinociception in hot plate test was further evaluated in the presence of caffeine (10 mg/kg), naloxone (2 mg/kg) and monosodium glutamate (1 g/kg). While carrageenan induced rat paw edema and yeast induced mouse pyrexia models were used to test the anti-inflammatory and antipyretic activities.ResultsAdministration of single intraperitoneal doses (400 mg/kg and 800 mg/kg) of ASHME significantly reduced the carrageenan induced paw edema in rats (P<0.05, P<0.001) by 54% and 74%, increased the thermal nociception time in the hot plate test up to 2- and 2.5-fold (P<0.01, P<0.001), inhibited the acetic acid induced writhings in mice by 41.12% and 61.53% (P<0.001), and attenuated the yeast induced pyrexia in mice by nearly 74% and 90% respectively (P<0.01, P<0.001). Caffeine (10 mg/kg), naloxone (2 mg/kg) and monosodium glutamate (1 g/kg) significantly (P<0.001) abolished the anti-nociceptive response of ASHME (400 mg/kg).Conclusion These findings suggest that the Artemisia scoparia hydromethanolic extract of ASHME possesses anti-nociceptive, anti-inflammatory and antipyretic potentials, which support its use, for the said conditions, in traditional medicine and should be further exploited for its use in clinical medicine.
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