Metal test could help diagnose breast cancer early

It may be possible to develop a simple blood test that, by detecting changes in the zinc in our bodies, could help to diagnose breast cancer early, scientists say. In a world-first, the researchers were able to show that changes in the isotopic composition of zinc, which can be detected in a person's breast tissue, could make it possible to identify a 'biomarker' (a measurable indicator) of early breast cancer.

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