Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15691
Title: Effect of Ganoderma lucidum on human DNA is dose dependent and mediated by hydrogen peroxide
Authors: Wachtel-Galor, S
Choi, SW
Benzie, IFF 
Keywords: Ganoderma lucidum
Human DNA
Hydrogen peroxide
Issue Date: 2005
Source: Redox report, 2005, v. 10, no. 3, p. 145-149 How to cite?
Journal: Redox Report 
Abstract: Ganoderma lucidum, an oriental fungus, is widely used for the promotion of health and longevity and is reported to have antioxidant and genoprotective properties. The aim of this study was to investigate the effect of G. lucidum on human lymphocytic DNA ex vivo using the comet assay, and to explore the mechanism of action and the effect of dose. Results showed that G. lucidum has a genoprotective effect at low concentration (0.0001% w/v), but damaged DNA at higher concentrations. The mechanism of damage appeared to be mediated by hydrogen peroxide, which was generated in vitro by G. lucidum, as the effect was ameliorated by the presence of catalase. At concentrations at which no damage was induced, G. lucidum appeared to confer protection against subsequent oxidant challenge to cells. The production of hydrogen peroxide by G. lucidum and its cytotoxic effects should be considered as a factor in future studies. However, the protective effect of G. lucidum at low concentration may explain, in part, some of the reported health benefits of this herb.
URI: http://hdl.handle.net/10397/15691
ISSN: 1351-0002
DOI: 10.1179/135100005X57355
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