Genotoxicity and Single-Treatment Toxicity Evaluation of Mycoleptodonoides aitchisonii (Agaricomycetes) Water Extract.
International journal of medicinal mushrooms(2017)
摘要
Mushrooms have long been used worldwide for culinary and medicinal purposes because of their various nutrients and active constituents. The safety of mushrooms as a culinary ingredient requires validation. Although Mycoleptodonoides aitchisonii has long been used for culinary purposes in East Asia, it has not been authorized by a regulatory agency. In this study we conducted genotoxicity and single-treatment toxicity tests according to the guidelines of the Organisation for Economic Co-operation and Development. We performed genotoxicity tests (bacterial reverse mutation study, chromosome aberration test, and micronucleus test), single-treatment toxicity tests, and in vivo mammalian alkaline comet assay of M. aitchisonii water extract (WT). A single treatment with 5000 mg/kg M. aitchisonii WT showed no toxicity. M. aitchisonii WT induced bacterial reverse mutation and chromosome aberration but showed a negative result in the micronucleus test. Thus, an in vivo mammalian alkaline comet assay was performed; however, no genotoxicity was detected. Treatment with <5000 mg/kg M. aitchisonii WT is nontoxic and can be used for culinary purposes.
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