Estriol

Also known as:  E3;  Folliculin Hydrate;  Oestriol;  Trihydroxyestrin

Estriol is a type of Estrogen - Female Sexual Steroid Hormone.

Cardiovascular System

 Estriol may lower Blood Pressure and may therefore be useful for the treatment of High Blood Pressure in postmenopausal women.  ^[1]

Excretory System

 Estriol may alleviate the Urinary Incontinence that commonly occurs in association with Female Menopause.  ^[2]

Immune System

 Estriol may protect against carcinogen-induced, Estradiol and Estrone-induced, X-Rays-induced and Radiation Therapy-induced Cancer - Breast:  ^[3]

 Estriol competes with Estradiol and Estrone for the occupancy of Estrogens Receptors.  Because Estriol has minimal ability to stimulate Cell proliferation, it may therefore inhibit the ability of other Estrogens to stimulate Breast Cell proliferation (by occupying Estrogens Receptors that would otherwise be occupied by Estradiol or Estrone).

 Estriol may inhibit the ability of Estradiol and Estrone (and synthetic Estrogens that mimic Estradiol and Estrone) to stimulate the growth of Cancer Cells involved in Cancer - Uterus.  ^[4]

Musculoskeletal System

 Estriol may help to prevent Osteoporosis.  ^[5]

Nervous System

 Estriol may alleviate Multiple Sclerosis.  ^[6]

Sexual System

 Estriol (natural, not synthetic) is the primary natural Estrogen recommended for use in Estrogen Replacement Therapy (ERT) post-menopausal women whose production of Estriol declines significantly following Menopause - Female.  Some physicians recommend that natural Estriol comprise 80% of the Estrogens in natural Estrogens Replacement Therapy.  ^[7]