Estrogen
The ovaries produce three different estrogens, in addition to progesterone and testosterone which all start from cholesterol produced in the liver. Many women do not know that testosterone is produced by both men and women. In fact, the steroid hormone androstenedione is converted in both men and women to testosterone first, then testosterone is converted into estradiol(E2), the major estrogen secreted by the human ovary.
The next most potent estrogen is estrone (E1), which comes from androstenedione. The third estrogen, estriol (E3), is synthesized outside the ovary in the peripheral tissues of the body from estrone and estradiol. It is known as the safe estrogen. estriol has been shown to be protective against breast cancer. Low levels of estriol place you at an increased risk for developing cancer. You should check all of your estrogen levels periodically to make sure that they are in a health balance approximately equal to a ratio of at least 8:1:1, estriol to estrone to estradiol, respectively.
With advancing age, a woman’s ovarian function declines, leading to a decline in the production of estrogen. This decline leads to vasomotor instability that causes hot flashes. It also causes decreased muscle mass, which is then replaced by fibrous tissue. Thinning skin is due to a loss of connective tissue support and elasticity. Vaginal mucous membranes also become thin and dry and breast tissue begins to sag. Supplementing natural estriol (E3) can help stop many of these undesirable effects associated with menopause.
Progesterone
Progesterone is also produced by the ovaries from cholesterol. It has its own unique hormonal functions, but a certain amount is also converted into estrogen. Progesterone increases uterine secretions and stimulates calcium deposits into bone tissue. It also helps regulate salt, control blood sugar, modulate nerve function and promote a healthy thymus gland. Supplementing natural progesterone can help maintain these healthful benefits.
Testosterone
When a woman’s ovarian function declines in the years before and during natural menopause, so does the amount of testosterone she produces. Between a woman’s 20s and 40s the amount of testosterone circulating in her blood declines about 50%. If a woman starts Estrogen Replacement Therapy at menopause, her blood levels of testosterone drop even further due to a biochemical reaction.
Symptoms such as fatigue, muscle wasting, low sex drive, decreased sexual stimulation, and diminished sense of well-being can be due to a testosterone deficiency. These symptoms may be significantly improved with natural testosterone replacement.
DHEA
Dehydroepiandrosterone (DHEA) is the most abundant steroid in the body. DHEA is a steroid precursor produced by the adrenal gland and converted to testosterone and the estrogens. DHEA levels decrease dramatically with age. Adequate DHEA levels give the body the building blocks necessary to produce these hormones. Low levels of DHEA are associated with and increase in coronary artery disease, muscle wasting and osteoporosis. Taking DHEA reverses these processes and may also increase the sense of well-being.
Summary
Current and long-term use of Estrogen hormone therapies has been found to significantly lower the incidence of death. Health risks are significantly reduced with carefully monitored customized treatment. Low dose Estrogen therapy has been found to be effective and beneficial with long term use.
References
- Samsioe G. The endometrium: effects of estrogen and estrogen-progestogen replacement therapy. Int J Fertil Menopausal Stud 1994;39 Suppl 2:84-92
- Davis S. Androgen replacement in women: a commentary. J Clin Endocrinol Metab 1999 Jun;84(6):1886-91
- Watts NB. Hulka BS. Epidemilogical analysis of breast and gynecological cancers. Prog Clin Biol Res. 1997;396:17-29.
- Rosano GM, Panina G. Cardiovascular pharmacology of hormone replacement therapy. Drugs Aging 1999 Sep;15(3):219-34