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Cancer Lett. 1991 Nov;60(2):135-42.

The effect of flaxseed supplementation on early risk markers for mammary carcinogenesis.

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Department of Nutritional Sciences, University of Toronto, Ontario, Canada.


Since lignans have been suggested to have some cancer-protective effects, flaxseed, the most abundant source of lignan precursors, was tested for its effect on early markers of risk for mammary carcinogenesis. Supplementation of a high-fat diet with flaxseed flour (FF) or defatted flaxseed meal (FM) (5% or 10%) reduced the epithelial cell proliferation by 38.8-55.4% and nuclear aberrations by 58.8-65.9% in female rat mammary gland, with optimum effects seen with the 5% FF. These protective effects were accompanied by increases in urinary lignan excretion indicating that they may be related to the ability of flaxseed to provide lignan precursors.

[Indexed for MEDLINE]

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