Some researchers believe that these chemicals can cause normal breast cells to divide.

The liver, for instance, is foreign territory to a breast cell.

The water picks up breast cells and is removed.

No cancer turned up, but Cerceo did have "atypical" breast cells.

Some researchers believe that chemicals with estrogenic characteristics can cause normal breast cells to divide.

But the effect of the estrogen in soy on breast cells is poorly understood.

Another line of research would be to develop novel drugs to impede insulin's effect on breast cells.

For example, a sample of cancer tissue taken from the breast is expected to be made up of breast cells.

In breast cells, the picture is much less clear.

Tamoxifen, on the other hand, blocks estrogen from binding to receptors in breast cells.