These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: [Study on the scavenging action of polysaccharide of Usnea longissima to oxygen radical and its anti-lipi peroxidation effects].
    Author: Bian X, Jin J, Ding D, Zhang H.
    Journal: Zhong Yao Cai; 2002 Mar; 25(3):188-9. PubMed ID: 12583163.
    Abstract:
    OBJECTIVE: To study the scavenging action of polysaccharide of Usnea longissima Ach. (PUS) to oxygen free radical and its inhibiting action on lipidperoxidation. METHODS: The scavenging action to superoxide anion free radical (O2-.) was tested by xanthine-xanthine oxidase system. The scavenging action on hydroxyl free racical (OH.) and anti-lipidperoxidation effects were tested by Fenton reaction. RESULTS: The scaverging action was represented by the content scavenging 50% of all the free radical(IC50). The IC50 for O2-. and OH. were 0.45 mg/ml and 1.57 mg/ml respectively. The lipidperoxidation induced by OH. was weakly inhibited by PUS. CONCLUSION: PUS can apparently scavenge oxygen free radical. But it can only weakly inhibit the lipid peroxidation of hepatocyte homogenate of mice which resulted form hydroxyl free radical.
    [Abstract] [Full Text] [Related] [New Search]