Estrogen is the primary female sex hormone.
It is responsible for the development and regulation of the Female Reproductive system and secondary sex characteristics.
Estrogen may also be classified as any substance, natural or synthetic, that acts similar to the effect of the natural hormone.
It is synthesized in all vertebrates and some insects.
Estrogen is a group of compounds that are synthesized and referred to as “steroids“.
Estrogen can be found in both males and females.
The levels are much higher in a women of child bearing age.
They have a large importance in the “estrous cycle” – which is a physiologic change that occurs during the Reproductive and menstrual cycle.
Estrogen is the primary female sex hormone but is also used with Progesterone, LH, and FSH.
Three main types of estrogen that are found in nature
4.) Estetrol is only produced during pregnancy
Cholesterol is the main ingredient in estrogen formation but Testosterone is also involved.
Estrogen is primarily produced within the Ovary.
Specifically found in the follicles, corpus luteum and the Placental as well.
FSH and LH cause the reaction that produces Estrogen in the ovaries
- Help in sperm development
- Arguments have been made that it is necessary to maintain healthy libido
- Promotes formation of sex characteristics
- Accelerate Metabolism
- Fat storage
- Helps with Uterine Growth
- Helps with Endometrial Growth
- Thickens Vaginal walls.
- Decreases resoption of bone
Hormone Replacement Therapy
For those who are postmenopausal
Estrogen and other hormones are given to prevent osteoporosis.
Estrogen treatment related symptoms:
- Hot flashes
- Vaginal dryness
Some risks may increase with Hormone Replacement Therapy.
And research is currently in progress to determine the overall risk vs. benefit for this treatment plan.
Estrogen itself may be important player in breast cancer
Many breast cancers are “hormone sensitive”
This means, that in order for these cancers to survive and even become larger, is directly controlled by the level of estrogen in the body.
Treatment may therefore be the decrease or suppression of this hormone
Typically seen in 75-80% of breast cancers
Estrogen is also used directly in medication for contraception and hormone replacement in some women.