In Vitro Free Radical Scavenging and Hepatoprotective Activities of Taraxacum mongolicum

포공영의 자유라디칼 소거 및 간세포 보호활성

  • Published : 2003.12.30

Abstract

The methanol (MeOH) extract and ist fractions of Taraxacum mongolicum (Compositae) were examined for their scavenging effects on 1,1-diphenyl-2- phenylhydrazyl (DPPH) and superoxide radicals, and hepatoprotective effects on tacrine-induced cytotoxicity in human hepatoma cell line, Hep G2 cells. Both methylene chloride $(CH_2Cl_2)$ and butanol (n-BuOH) soluble fractions of the MeOH extract showed the free radicals scavenging and hepatoprotective effects. From these results, it is suggested that hepatoprotective effect of these fractions partly relies on their free radical scavenging activity.

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References

  1. Halliwell, B. and Gutteridge, J. M. (1984) Lipid peroxida-tion, oxygen radicals, cell damage and anti-oxidant therapy. Lancet, 23: 1396-1397
  2. Watkins, P. B., Zimmerman, H. J., Knapp, M. J., Gracon, S. I., and Lewis, K. W. (1994) Hepatotoxic effects of tacrine administration in patients with Alzheimers disease. J. Am. Med. Assn. 271: 992-998 https://doi.org/10.1001/jama.271.13.992
  3. Osseni, R. A., Debbasch, C., Christen, M. O., Rat, P., and Warnet, J. M. (1999) Tacrine-induced reactive oxygen species in a human liver cell line: the role of anethole dithiolethione as a scavenger. Toxicol. In Vitro, 13: 683-688 https://doi.org/10.1016/S0887-2333(99)00050-8
  4. Rekka, E. and Kourounakis, P. N. (1991) Effect of hydroxyethyl- rutosides and related compounds on lipid peroxidation and free radical scavenging activity. Some structural aspects. J. Pharm. Pharmacal. 43: 486-491 https://doi.org/10.1111/j.2042-7158.1991.tb03519.x
  5. Tampo, Y., Tsukamoto, M., and Yonaha, M. (1999) Superoxide production from paraquat evoked by exogenous NADPH in pulmonary endothelial cells. Free Radie. Biol. Med. 27: 588-595 https://doi.org/10.1016/S0891-5849(99)00110-0