Estrogen
Estrogens are produced in the ovaries, body fat and other parts
of the body. They are responsible for normal growth, development
and maintenance of female sex characteristics. They plan an important
role in protecting the body against bone loss and heart disease.
The three main estrogens produced in the human body are:
- Estrone - (E1) - (10-20% of circulating estrogens) is the primary
estrogen produced after menopause
- Estradiol - (E2) - (10-30% of circulating estrogens) is the
most potent and major secretory product of the ovary, and the
predominant estrogen produced before menopause.
- Estriol - (E3) - (60-80% of circulating estrogens) causes little
or no buildup of the endometrium, and is very effective in alleviating
vaginal and urinary symptoms in postmenopausal women.
With Bio-Identical Hormone Replacement Therapy, these three estrogens
are replaced in the same ratio in which they existed naturally in
the body prior to menopause.
Progesterone
Progesterone is responsible for many functions throughout a woman’s
life. During pregnancy, progesterone maintains the uterine lining
and prepares the breasts for lactation. Progesterone helps to counteract
the action of estrogen in the uterine lining and protect against
breast cancer by promoting the formation of healthy breast tissue.
Progesterone also increases bone mass and density. Progesterone
helps to relieve headaches, enhance moods, relieve breast tenderness,
regulate menstrual cycles, relieve endometriosis and increase libido.
Progesterone is a precursor for other hormones. If progesterone
levels drop, other hormones (such as estrogens and testosterone)
may fall as well. Therefore, progesterone is useful even if no uterus
is present.
Progesterone vs. Progestins
There is a major difference in natural progesterone vs. synthetic
progestin. Natural progesterone has been shown to have beneficial
effects on both cholesterol levels and bone formation while synthetic
progestins oppose the beneficial effect on cholesterol levels and
bones. Natural progesterone improves the quality of sleep and has
sedative properties while synthetic progestins can cause insomnia,
anxiety and mental depression.
Testosterone
Testosterone plays an important role in the female body. It offers
protection of the heart, improvement of mental alertness, increase
in bone strength, maintenance of normal energy levels, increase
in libido and maintenance of muscle tone.
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