• Title/Summary/Keyword: Cycloxygenase inhibitor

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The Effects of Lipoxygenase and Cyclooxygenase Inhibitors to Meningioma Cell Proliferation in vitro (Lipoxygenase 및 Cyclooxygenase Inhibitor가 뇌수막종세포의 성장에 미치는 영향)

  • Park, Yong Seok;Koo, Tae Heon;Lee, Jung Hoon;Lee, Young Bae;Lee, Kyu Chun;Mok, Jin Ho;Kim, Han Sik
    • Journal of Korean Neurosurgical Society
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    • v.29 no.1
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    • pp.28-34
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    • 2000
  • Object : To verify the effect of the lipoxygenase inhibitor and cycloxygenase inhibitor on meningioma cell proliferation. Method : Using two meningioma cell lines, cell proliferation was determined at 96 hrs after adding inhibitor (AA861, Nordihydroguaiaretic acid(NDGA), Indomethacin, acetyl-11-keto-beta-boswellic acid(AKBA) into medium by methyl tetrazolium salt/phenazine methosulfate(MTS/PMS) non-radioactive cell proliferation assay. We checked optical density with 490nm wavelength UV and this value was used as a proliferative index. The percent of inhibition was also calculated from this value. Conclusion : Indomethacin and NDGA showed no effect on meningioma proliferation. AA861 also showed no significant inhibitory effect, but AKBA demonstrated a significant inhibitory effect on meningioma cell proliferation.

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In-vitro Anti-inflammatory Activity of Rubus coreanus Miq. on Nitric Oxide, $Interferon-\gamma$, Cycloxygenase-2, and Tumor Necrosis $Factor-\alpha$ Production in the Macrophage like Cell Line RAW 264.7 Activated by Lipopolysccharide

  • Choi, Se-Young;Lee, Kyou-Chae;Jeoung, Young-Jun;Lim, Beong-Ou
    • Korean Journal of Medicinal Crop Science
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    • v.15 no.5
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    • pp.324-328
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    • 2007
  • To search for immunoactive natural products exerting anti-inflammatory activity, we have evaluated the effects of the ethanol extracts of Rubus coreanus Miq. (ERC) on lipopolysaccharide-induced nitric oxide (NO), tumor necrosis $factor-{\alpha}\;(TNF-{\alpha})$, and $Interferon-{\gamma}\;(IFN-{\gamma})$ production by RAW 264.7 macrophage cell line. Our data indicate that this extract is a potent inhibitor of NO production and it also significantly decreased $IFN-{\gamma}\;and\;TNF-{\alpha}$ production. Consistent with these results, the protein level of inducible Nitric Oxide Synthase (iNOS) and cyclooxygenase-2 (COX-2) was inhibited by ethanol extracts of ERC in a dose-dependent manner. These results suggest that ERC may exert anti-inflammatory and analgesic effects possibly by suppressing the inducible NO synthase and COX-2 expressions.

Anti-inflammatory and Antinociceptive Activities of 'Coccinia indica W. &A.' Fruit Juice Powder in Animals

  • Rao, GMM;Rao, Ch V;Sudhakara, M.;Pandey, M M;Rawat, AKS;Sirwaikar, A;Joshi, AB
    • Natural Product Sciences
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    • v.10 no.1
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    • pp.20-23
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    • 2004
  • The fresh fruit juice powder of Coccinia indica W.&A., (Cucurbitaceae, CJP) was studied for the possible activities of antiinflammatory and antinociceptive to rationalize the folkloric use of the plant juice as rasayana. CJP at the doses of 50-200 mg/kg caused a significant (P<0.05 to P<0.001) inhibition of paw edema induced by ${\lambda}$ carrageenin (1%) and histamine $(10^{-3}\;g/ml,\;0.1\;ml)$ in rats. The effect was comparable to the standard cycloxygenase inhibitor brufen at 100 mg/kg and protective percentages were 63.41% and 65.78% respectively. Administration of CJP (50-200 mg/kg) exhibited a moderate increase of the pain threshold on analgesy-meter induced mechanical pain. However CJP significantly prevented the writhing induced by acetic acid in mice and the percentages of inhibitions were 16.98%-35.47%, which is equivalent to 36.67% produced by brufen. These data indicate that the fruit juice of Coccinia indica rationalizes the traditional system of medicine.