Article
Analysis of gene expression changes in relation to toxicity and tumorigenesis in the livers of Big Blue transgenic rats fed comfrey (Symphytum officinale).
BMC bioinformatics - 6 Sept 2006
Mei Nan, Guo Lei, Zhang Lu, Shi Leming, Sun Yongming Andrew, Fung Chris, Moland Carrie L, Dial Stacey L, Fuscoe James C, Chen Tao
Abstract excerpt
BACKGROUND: Comfrey is consumed by humans as a vegetable and a tea, and has been used as an herbal medicine for more than 2000 years. Comfrey, however, is hepatotoxic in livestock and humans and carcinogenic in experimental animals. Our previous study suggested that comfrey induces liver tumors by a genotoxic mechanism and that the pyrrolizidine alkaloids in the plant are responsible for mutation induction and...
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