Hormones produced in the woman body that help develop and maintain the characteristics of female sex and the growth of long bones.
Esteriol, for example, is a type of estrogen. Estrogens bind to the estrogen receptor (Estrogen Receptor, ER).
Estrogen in some cases can be involved in development of breast cancer – 80% of breast cancer patients are ER positive, meaning that their tumor responds positively estrogen molecules in the body.
These patients will be treated with estrogen blockers, which block the estrogen receptor