Prolonged exposure to low levels of the heavy metal cadmium may fuel the growth of some breast cancer cells and encourage them to spread, preliminary research indicates.
Found in many farm fertilizers, cadmium can make its way into soil and water. Some other main sources of cadmium include cigarette smoke, rechargeable batteries, certain cosmetics, bread and other cereals, potatoes, root crops and vegetables. Once it enters the body, cadmium may mimic the effects of the female hormone estrogen.
Unlike previous research, this new analysis looks at lifetime exposure to cadmium, not acute bursts of high levels of the heavy metal.
This research is still in its infancy, explained study author Maggie Louie, an associate professor of biochemistry at the Dominican University of California, in San Rafael.
“We are trying to figure out if it is the cadmium causing cancer or the cancer attracting the cadmium,” she said. “If it is chronic exposure to cadmium that increases breast cancer risk, being aware of other exposures to estrogen and taking steps to minimize these exposures may become important.”
Read more at Philly.
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