Tobacco.org

Test signals link between smoking, breast cancer  

Cigarette smoke could be a cause of breast cancer after all, University of Florida researchers recently reported in a cellular cancer journal called Oncogene.

Breast cancer is one of the few cancers in which a link to smoking has never been clearly established, and researchers believe their findings could be important in helping to understand why more than 220,000 cases of the disease are diagnosed each year in the United States.

The Florida study differs in one key aspect from previous studies that have not found a clear link between smoking and breast cancer: The researchers used condensate from actual tobacco smoke, in which normal breast cells were exposed to the full range of the 4,000 chemicals in tobacco smoke and not just a few of its known toxins, and injected it into laboratory mice. . . .

Narayan's study was funded by the National Institutes of Health and the Flight Attendant Medical Research Institute, based in Miami.

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