New test could predict risk of non-hereditary breast cancer

UK researchers are making progress on a blood test to predict the likelihood of a woman developing breast cancer, even in the absence of a BRCA gene mutation.

Their work is based on a discovery that women with breast cancer share an epigenetic signature, whether they have a BRCA1 gene mutation or not.

This makes it a potential early marker.

The researchers used blood samples collected over several years from women who had not been diagnosed with breast cancer and compared the DNA methylation signature from blood of those

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