Does A Chemical In Bread, Soybean Reverse Breast Cancer Therapy?

Oestrogen-mimicking compounds found in breads, soybean and a range of commonly consumed grains can reverse the effects of 'breakthrough' drug therapy used to treat breast cancer, scientists have found.

The study, published in the journal Cell Chemical Biology, suggests that exposure to chemical compounds called xenoestrogens may significantly reduce the effectiveness of anti-oestrogen treatments for cancer.

"Breast cancer patients taking palbociclib/letrozole should consider limiting their exposure to foods that contain xenoestrogens," said Gary Siuzdak, from The Scripps Research Institute (TSRI) in the US.

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