It is a chemical messenger that is important for the normal growth and development of a woman's breast, uterus, and ovaries. Estrogen is also important for childbearing and for maintaining a healthy heart and bones. The functional units of a cell's genetic code. Genes provide information to the cell that controls and directs its activities. Local chemical messengers in many tissues in the body that can control the growth of cells.
Some growth factors can tell breast cells to grow and divide.
Other growth factors can act as brakes, stopping or slowing down the growth of breast cells. A chemical that is used to kill or control the growth of unwanted plants. Herbicides can occur in nature or they can be created synthetically. Herbicides can be used on lawns and gardens, on crops, beside roadways, or on recreational areas. Chemical messengers made by the body.