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  • P-ISSN 1010-0695
  • E-ISSN 2288-3339

Harpagophytum Procumbens Suppresses Lipopolysaccharide Induced Expressions of Cyclooxygenase-2 and Inducible Nitric Oxide Synthase in Mouse BV2 Microglial Cells

Journal of Korean Medicine / Journal of Korean Medicine, (P)1010-0695; (E)2288-3339
2005, v.26 no.4, pp.152-161
Hyun-Chol Cho
Yun-Kyung Song (Kyung-Won University)
Hyung-Ho Lim (Kyung-Won University)
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Abstract

The excessive release of proinflammatory products by activated microglia causes neurotoxicity, and this has been implicated in the pathogenesis of neurodegenerative diseases. Harpagophytum procumbens (Pedaliaceae) has been widely used for the treatment of pain and arthritis in the clinical field. In this study, we investigated the effect of Harpagophytum procumbens against lipopolysaccharide-induced inflammation. From the present results, the aqueous extract of Harpagophytum procumbens was shown to suppress prostaglandin-E2 synthesis and nitric oxide production by inhibiting the lipopolysaccharide-stimulated enhancement of cyclooxygenase-2 and inducible nitric oxide synthase expressions in mouse BV2 microglial cells. These results suggest that Harpagophytum procumbens may offer a valuable means of therapy for the treatment of brain inflammatory diseases by attenuating lipopolysaccharide-induced prostaglandin-E2 synthesis and nitric oxide production

keywords
Harpagophytum procumbens, Lipopolysaccharide, Prostaglandin-E2, Nitric oxide


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