Function

Estriol (E3), also spelled oestriol, is a steroid, a weak estrogen, and a minor female sex hormone. It is one of three major endogenous estrogens, the others being estradiol and estrone. Levels of estriol in women who are not pregnant are almost undetectable. During PREGNANCY, a large amount of estriol is produced by the PLACENTA. Isomers with inversion of the hydroxyl group or groups are called epiestriol.
Estriol can be a weak or strong estrogen depending on if it is given acutely or chronically when given to immature animals, but is an antagonist when given in combination with estradiol.
Estriol may play a role in the development of breast cancer, but based on in vitro research, does appear to act as an antagonist to the G-protein coupled estrogen receptor. Though estriol is used as part of the primarily North American phenomenon of bioidentical hormone replacement therapy, it is not approved for use by the FDAor Health Canada.
Functional primary care: 1. Used for uterine cervix, especially for postmenopausal syndromes and senile vaginitis. Can be used as an adjuvant for intermediate and induced abortion. Used for enlarged prostate, prostate cancer, etc. The function of leukocyte is rapidly elevated, which takes effect from 1 to 3 days after taking the drug, but the effect is shorter. Loss of white blood cells due to chemotherapy or radiation therapy. 5. Can reduce the permeability of blood vessels and brittle, and can be used for a variety of the treatment of bleeding, menorrhagia, tonsil or after hysterectomy, have rapid hemostatic effect.

Application