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Female problems seem to be on the rise. Between 40% and 60% of all women in the West suffer from PMS. In addition, women suffer from a plethora of symptoms, some menopausal and others not. Something quite serious seems to be happening. There is strong evidence that that the proper hormonal balance necessary for women's bodies to function healthily is being interfered with by a number of factors.
Research has shown that many women in their 30s - some even younger - will occasionally not ovulate during their menstrual month.[1] Without ovulation, no corpus luteum results and no progesterone is made. A progesterone deficiency ensues and several problems can result from this, one being the month-long presence of unopposed estrogen with all its attendant side-effects.
A second major problem results from the interrelationship between progesterone loss and stress. Stress combined with a bad diet can induce cycles where ovulation does not occur. The consequent lack of progesterone interferes with the production of the stress-combating hormones, worsening stressful conditions that give rise to further anovulatory cycles and so continues the vicious cycle.
Another major factor contributing to this imbalance between estrogen and progesterone is the industrialized world now live in, immersed in a rising sea of petrochemical derivatives. They are in the air, food and water and include pesticides and herbicides (such as DDT, dieldrin, heptachlor, etc.) as well as various plastics (polycarbonated plastics found in babies bottles and water jugs) and PCBs. These estrogen-mimics are highly fat-soluble, not biodegradable or well excreted, and accumulate in the fat tissue of animals and humans. These chemicals have an uncanny ability to mimic natural estrogen and thus are given the name "xeno-estrogens" since, although they are foreign chemicals, they are taken up by the estrogen receptor sites in the body, seriously interfering with natural biochemical activity. Drinking sodas out of plastic bottles is one of the leading causes of estrogen dominance.
Extensive research is now revealing an alarming situation worldwide, created by the inundation of these hormone-mimics. In their book, Our Stolen Future, authors Theo Colburn of the World Wildlife Fund, Dianne Dumanoski of The Boston Globe, and John Peterson Meyers, a zoologist, have identified 51 hormone mimics, each able to unleash a torrent of effects such as reduced sperm production, cell division and sculpting of the developing brain. These mimics are not only linked to the recent discovery that human sperm counts worldwide have plunged by 50% between 1938 and 1990 but also to genital deformities, breast, prostate and testicular cancer, and neurological disorders.
Causes & Development Dr. John Lee, MD has discovered a consistent theme running through women's complaints of the distressing and often debilitating symptoms of PMS, peri-menopause and menopause: too much estrogen or, in other words, estrogen dominance. Now, instead of estrogen playing its essential role within the well-balanced symphony of steroid hormones in a woman's body, it has begun to overshadow the other players, creating biochemical dissonance. Even natural estrogens should not be prescribed unless it is clear that a deficiency exists.
Signs & Symptoms Female hormone imbalances can manifest in many and diverse symptoms. More specific suggestions regarding individual hormone levels may be made elsewhere in this report.
Diagnosis & Tests The hormone issue is a complicated one. There are three types of natural estrogen, and multiple degradation pathways and metabolites. Depending on the area of concern, a skilled natural doctor should be able to recommend those tests which will yield the most information, and guide you into balance. While a therapeutic trial of progesterone may help a condition of estrogen dominance, specific laboratory testing on a doctor's recommendation should be conducted prior to hormone replacement. Blood, saliva, or urine measurements may be made. Your doctor should be aware that the timing of specimen collection in relation to your cycle is important in progesterone testing. The best time is day 21 - 24 of your cycle (sooner if cycle is shorter and later if cycle is longer). If progesterone levels are normal, elevated estrogens can be reduced by means other than progesterone use.
The need for testing is seen in the situation of two menopausal women having similar symptoms but one with elevated estrogens (or an imbalance of estrogens) and the other with low estrogens. Both may have normal or low levels of progesterone. Giving natural estrogen to a woman in menopause seems the logical thing to do, but may make the situation worse if her levels are already too high. Giving a women low in estrogen, more progesterone won’t solve the underlying deficiency.
Treatment & Prevention Dr. Lee has been able to balance the estrogen-dominance effect through the use of transdermal natural progesterone cream.
Anti-aging Benefits of Natural Progesterone- Progesterone is a primary precursor in the biosynthesis of the adrenal corticosteroids. Without adequate progesterone, synthesis of the cortisones is impaired and the body turns to alternate pathways. These alternate pathways have masculine-producing side effects such as long facial hairs and thinning of scalp hair. Further impaired corticosteroid production results in a decrease in the ability to handle stress, e.g., surgery, trauma or emotional stress.
- Many peri- or post-menopausal women with clinical signs of hypothyroidism, such as fatigue, lack of energy, intolerance to cold, are actually suffering from unrecognized estrogen dominance and will benefit from supplementation with natural progesterone.
- Estrogen and most of the synthetic progestins increase intracellular sodium and water uptake. The effect of this is hypertension. Natural progesterone is a natural diuretic and prevents the cell's uptake of sodium and water, thus preventing hypertension.
- Whereas estrogen impairs homeostatic control of glucose levels, natural progesterone stabilizes them. Thus, natural progesterone can be beneficial to both those with diabetes and those with reactive hypoglycemia. Estrogen should be contraindicated in patients with diabetes.
- Thinning and wrinkled skin is a sign of lack of hydration in the skin. It is common in peri- and post-menopausal women and is a sure sign of hormone depletion. Both estrogen and progesterone restores skin hydration.
- Progesterone serves a role in keeping brain cells healthy. A disorder such as premature senility (Alzheimer's disease) may be, at least in part, another example of disease secondary to progesterone deficiency.
- Progesterone is essential for the healthy development of the myelin sheath which protects the nerve cells. Low progesterone levels lead to recurring aches and pains.
- Progesterone creates and promotes an enhanced sense of emotional well being and psychological self-sufficiency.
- Progesterone is responsible for enhancing the libido. [John R. Lee, M.D., Slowing the Aging Process with Natural Progesterone, BLL Publishing, CA, USA, 1994, p.14]
Complications Estrogen's role in osteoporosis is only a minor one. Estrogen replacement will reduce bone breakdown, but only progesterone increases new bone growth or deposition. Progesterone deficiency results in bone loss. In a three year study of 63 post-menopausal women with osteoporosis, women using transdermal progesterone cream experienced an average 7 to 8% bone mass density increase in the first year, 4 to 5% the second year, and 3 to 4% in the third year. Untreated women in this age category typically lose 1.5% bone mass density per year.[3] Dr. Lee believes that the use of natural progesterone in conjunction with dietary and lifestyle change can not only stop osteoporosis but can actually reverse it - even in women aged over 70.
Effects of Estrogen Dominance- When estrogen is not balanced by progesterone, it can produce weight gain, headaches, bad temper, chronic fatigue and loss of interest in sex - all of which are part of the clinically recognized premenstrual syndrome.
- Not only has it been well established that estrogen dominance encourages the development of breast cancer thanks to estrogen's proliferative actions, it also stimulates breast tissue and can trigger fibrocystic breast disease - a condition which wanes when natural progesterone is introduced to balance the estrogen.
- Excess estrogen implies a progesterone deficiency. This, in turn, leads to a decrease in the rate of new bone formation in a woman's body by the osteoblasts - the cells responsible for doing this job. Although most doctors are not yet aware of it, this is the prime cause of osteoporosis.
- Estrogen dominance increases the risk of fibroids. One of the interesting facts about fibroids is that, regardless of the size, fibroids commonly atrophy once menopause arrives and a woman's ovaries are no longer making estrogen. Doctors who commonly use progesterone with their patients have discovered that giving a woman natural progesterone may cause fibroids to atrophy.
- In estrogen-dominant menstruating women where progesterone is not peaking and falling in a normal way each month, the ordered shedding of the womb lining doesn't take place. Menstruation becomes irregular. This condition can usually be corrected by making lifestyle changes and using a natural progesterone product. It is easy to diagnose by having a doctor measure the level of progesterone in the blood at certain times of the month.
- Endometrial cancer (cancer of the womb) develops only where there is estrogen dominance or unopposed estrogen. This, too, can be prevented by the use of natural progesterone. The use of the synthetic progestins may also help prevent it, which is why a growing number of doctors no longer give non-human estrogens without combining them with progesterone drug during HRT. However, all synthetic progestins have side effects.
- Water logging of the cells and an increase in intercellular sodium, which predispose a woman to high blood pressure or hypertension, frequently occur with estrogen dominance. These can also be side effects of progestins use. A natural progesterone cream often resolves this problem.
- The risk of stroke and heart disease is increased dramatically when a woman is estrogen-dominant. [Leslie Kenton, Passage to Power, Random House, UK, 1995]
References & Further Information [1] Lee, John R., M.D., Natural Progesterone: The Multiple Role of a Remarkable Hormone, BLL Publishing, California, USA, 1993, p.29. [2] Kenton, Leslie, Passage to Power, Random House, UK, 1995, pp.19-20. [3] Lee, John R., M.D., "Osteoporosis Reversal: The Role of Progesterone," International Clinical Nutrition Review (1990), 10: pp.384-391.
You can develop a clearer understanding of the nature of your condition and the interplay of female hormones by reading an informative book such as Natural Hormone Balance by Uzzi Reiss, MD, or What Your Doctor May Not Tell You About Premenopause and What Your Doctor May Not Tell You About Menopause by John Lee, MD.
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Signs, symptoms & indicators of Progesterone Low or Estrogen Dominance:
Conditions that suggest Progesterone Low or Estrogen Dominance: |  |  |  | | Autoimmune | Multiple Sclerosis | Progesterone has been shown in animal studies to promote the formation of new myelin sheaths [Human Reproduction 2000 Jun;15 Suppl 1: pp.1-13, J Steroid Biochem Mol Biol 1999 Apr-Jun;69 pp.97-107, Mult Scler 1997 Apr;3 pp.105-12]
Physicians have known for years that pregnancy can suppress some forms of immune response, such as allergies. In the early and mid-1980s, several doctors observed that MS patients had fewer symptoms during pregnancy and post-partum recovery. This may be due to the high progesterone level in the blood of a pregnant woman. Progesterone tends to be anti-inflammatory. Progesterone therapy may therefore be useful for MS especially as a medical report noted the association between enlarged adrenal glands and MS. Progesterone, being a steroid, often helps the adrenals deal with inflammation.
Other studies have indicated that symptoms are worse during periods when the progesterone to estrogen ratio is low. |
| Environment / Toxicity |
Copper Toxicity | Elevated estrogen levels often increase serum copper levels to more than double normal values, while at the same time red blood cell levels, where copper is important, may actually be lower. This may contribute to some of the psychological or other symptoms seen during pregnancy or with birth control pill use. |
| Hormones |
Low Male Testosterone Level | Testosterone is converted into estrogen naturally. When this conversion is overactive the result is too little testosterone and too much estrogen. High levels of estrogen also trick the brain into thinking that enough testosterone is being produced, thereby reducing the natural production of testosterone. |
Hirsutism
Low Sex Drive
Hypothyroidism | Progesterone increases sensitivity of estrogen receptors, and can therefore redirect estrogen activity and inhibit many of unopposed estrogen's undesirable side-effects, which includes interference with thyroid hormone activity. |
| Infections |
Yeast / Candida Infection | Lab Values |
Low Total Cholesterol | Lab Values - Hormones |
Elevated estrogen levels (confirmed) | Mental |
Anxiety
Panic Attacks | It has been reported that women with low progesterone levels experience less intense or less frequent panic attacks after progesterone supplementation. In some cases, sublingual progesterone in olive oil has produced immediate benefit. |
| Metabolic |
Edema (Water Retention) | Progesterone has also been used in the treatment of idiopathic edema under the premise that some women with idiopathic edema either do not ovulate or have a luteal phase deficiency.
Ovarian function was investigated in 30 women with postural idiopathic edema by measuring plasma estradiol and progesterone levels between the 21st and 23rd days of the menstrual cycle. Plasma progesterone concentrations were found to be lower than 5ng/ml in 53% of the cases and lower than 10ng/ml in 83%. The ovarian dysfunction most frequently observed was inadequate corpus luteum, i.e. progesterone deficiency with normal plasma estradiol levels. In virtually all patients the initial disorder in capillary permeability, as evaluated by Landis' test, was fully corrected by progesterone administered orally. However, clinical improvement was less marked with treatments of short duration (2-3 consecutive cycles). In view of the complex cause of the disease, combined treatments in which progesterone might well play the major role are usually required. [Presse Med 1983 Dec 10;12(45): pp.2859-62 (translated)] |
| Skin-Hair-Nails |
Cold Hands and Feet | Cold hands and feet, often caused by low thyroid function, may be a symptom of estrogen excess or low progesterone influencing thyroid function. |
Female Hair Loss | Symptoms - Immune System |
General fungal/yeast infections | Tumors, Benign |
Fibroids | Tumors, Malignant |
Breast Cancer | One study reported that women with the highest levels of estrogen were twice as likely to develop breast cancer as those with the lowest levels. [Journal of the National Cancer Institute, 17th April 2002] |
| Uro-Genital |
Premenstrual Syndrome
Menorrhagia (Heavy Periods) | In a normal menstrual cycle, estrogen and progesterone regulate the buildup of the endometrium (uterine lining of blood and tissue), which is shed each month during menstruation. Menorrhagia can occur because of an imbalance between estrogen and progesterone. As a result of the imbalance, the endometrium keeps building up resulting in heavy bleeding when it is eventually shed. Since hormone imbalances are often present in adolescents and in women approaching menopause, this type of menorrhagia (dysfunctional uterine bleeding) is fairly common in these groups. |
Premenstrual Syndrome PMS A (Anxiety)
Fibrocystic Breast Disease | The administration of natural progesterone is suggested by Dr. John Lee, MD and others to be a protective therapy that can reduce breast tenderness and the fibrocystic changes seen in FBD. |
Susceptibility To Miscarriages
Vaginitis/Vaginal Infection | Yeast infections are more common among women with increased levels of estrogen. This is seen in those who use estrogen-containing birth control pills and among women who are pregnant. The increased hormone level causes changes in the vaginal environment that make it a media for fungal growth and nourishment. |
Metrorrhagia
Counter-indicators:
Pregnancy-Related Issues | Hormone levels fluctuate at different stages of pregnancy, making it difficult to isolate any underlying imbalances during this time. |
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Risk factors for Progesterone Low or Estrogen Dominance:
Progesterone Low or Estrogen Dominance can lead to:
Recommendations and treatments for Progesterone Low or Estrogen Dominance:
KEY |  | Weak or unproven link |  |  | Strong or generally accepted link |  |  | Proven definite or direct link |  |  | Strongly counter-indicative |  |  | Very strongly or absolutely counter-indicative |  |  | Likely to help |  |  | Highly recommended |  |  | Avoid absolutely |
GLOSSARY
Adrenal (Adrenal Gland, Adrenal Glands, Adrenals) The adrenal glands sit on top of each kidney and consist of an outer cortex and an inner medulla. Of the 50 or so hormones the adrenals make, only cortisone and adrenaline are recognized by most people. Some of these hormones must be produced to preserve life, while others help resist stress. Other hormones from the adrenals control normal energy output (along with the thyroid) and govern the breakdown of stored energy into quick energy sources. The medulla produces epinephrine and norepinephrine, which are specifically designed to help the body deal with stressful situations. The adrenals control the body's potassium/sodium balance, which is vital for energy production. They also produce sex hormones in minute amounts, which is important for later years when the gonads drop or cease their production.
Adrenal Insufficiency (Adrenal Exhaustion, Low Adrenal Function) A condition in which the adrenal gland is compromised in its production of epinephrine, norepinephrine, cortisol, corticosterone or aldosterone. Symptoms include primarily fatigue, weakness, decreased appetite with ensuing weight loss, as well as nausea, vomiting, abdominal pain, diarrhea or constipation, or increased pigmentation of the skin. Cortical insufficiency (low or no corticosteroids) produces a more serious condition called Addison’s Disease, characterized by extreme weakness, low blood pressure, pigmentation of the skin, shock or even death.
Allergy (Allergies) Hypersensitivity caused by exposure to a particular antigen (allergen), resulting in an increased reactivity to that antigen on subsequent exposure, sometimes with harmful immunologic consequences.
Alzheimer's Disease (Alzheimer's) A progressive disease of the middle-aged and elderly, characterized by loss of function and death of nerve cells in several areas of the brain, leading to loss of mental functions such as memory and learning. Alzheimer's disease is the most common cause of dementia.
Androgen Any steroid hormone that increases male characteristics.
Anovulatory Not involving or accompanied by ovulation; suppressing ovulation.
Anti-inflammatory (Antiinflammatory) Reducing inflammation by acting on body mechanisms, without directly acting on the cause of inflammation, e.g., glucocorticoids, aspirin.
Beta Blockers (Beta Blocker) Drugs used to slow the response to epinephrine only (as released hormonally by the adrenal medulla), usually to attempt controlling high blood pressure.
Cancer Refers to the various types of malignant neoplasms that contain cells growing out of control and invading adjacent tissues, which may metastasize to distant tissues.
Capillary Any of the smallest blood vessels connecting arterioles with venules and forming networks throughout the body.
Cholesterol A waxy, fat-like substance manufactured in the liver and found in all tissues, it facilitates the transport and absorption of fatty acids. In foods, only animal products contain cholesterol. An excess of cholesterol in the bloodstream can contribute to the development of atherosclerosis.
Chronic Fatigue Syndrome (CFS, Chronic Fatigue) A disorder of unknown cause that lasts for prolonged periods and causes extreme and debilitating exhaustion as well as a wide range of other symptoms such as fever, headache, muscle ache and joint pain, often resembling flu and other viral infections. Also known as Chronic Fatigue and Immune Dysfunction Syndrome (CFIDS), Chronic Epstein-Barr Virus (CEBV), Myalgic Encephalomyelitis (ME), "Yuppy Flu" and other names, it is frequently misdiagnosed as hypochondria, psychosomatic illness, or depression, because routine medical tests do not detect any problems.
Copper An essential mineral that is a component of several important enzymes in the body and is essential to good health. Copper is found in all body tissues. Copper deficiency leads to a variety of abnormalities, including anemia, skeletal defects, degeneration of the nervous system, reproductive failure, pronounced cardiovascular lesions, elevated blood cholesterol, impaired immunity and defects in the pigmentation and structure of hair. Copper is involved in iron incorporation into hemoglobin. It is also involved with vitamin C in the formation of collagen and the proper functioning in central nervous system. More than a dozen enzymes have been found to contain copper. The best studied are superoxide dismutase (SOD), cytochrome C oxidase, catalase, dopamine hydroxylase, uricase, tryptophan dioxygenase, lecithinase and other monoamine and diamine oxidases.
Corpus Luteum Yellow endocrine body formed in the ovary that secretes estrogen.
Corticosteroid (Corticosteroids) Steroid hormone produced by the adrenal cortex.
Cortisol A hormone. Its most important function is to help the body respond to stress. It also helps regulate your body's use of protein, carbohydrates and fat; it helps maintain blood pressure and cardiovascular function; it stems inflammation.
Diabetes Mellitus (Diabetes, Diabetic, Diabetics) A disease with increased blood glucose levels due to lack or ineffectiveness of insulin. Diabetes is found in two forms; insulin-dependent diabetes (juvenile-onset) and non-insulin-dependent (adult-onset). Symptoms include increased thirst; increased urination; weight loss in spite of increased appetite; fatigue; nausea; vomiting; frequent infections including bladder, vaginal, and skin; blurred vision; impotence in men; bad breath; cessation of menses; diminished skin fullness. Other symptoms include bleeding gums; ear noise/buzzing; diarrhea; depression; confusion.
Diuretic (Diuretics) An agent increasing urine flow, causing the kidneys to excrete more than the usual amount of sodium, potassium and water.
Dysfunctional Uterine Bleeding (DUB) Any abnormality of menstruation or bleeding caused by a hormonal disorder. DUB is a diagnosis of exclusion. The following conditions should be ruled out in order to diagnose DUB: endometrial polyps, uterine fibroids, adenomyosis, endometrial or cervical cancer, pelvic infection including endometritis (infection of the lining of the uterus), endometriosis, polycystic ovarian disease, ovarian cyst or tumor, thyroid dysfunction or blood clotting abnormalities. Hormone testing may indicate abnormalities which replacement therapy would then resolve. If the dysfunctional bleeding disappears, then no further testing may be necessary.
Failure to perform sufficient testing may result in an incorrect diagnosis of DUB because the true cause of the abnormal bleeding has been overlooked. A premature diagnosis of DUB may lead to improper and failed treatment. DUB accounts for approximately 20% of all hysterectomies in the U.S.
Edema Abnormal accumulation of fluids within tissues resulting in swelling.
Estrogen (Oestrogen) One of the female sex hormones produced by the ovaries.
Glucose A sugar that is the simplest form of carbohydrate. It is commonly referred to as blood sugar. The body breaks down carbohydrates in foods into glucose, which serves as the primary fuel for the muscles and the brain.
Hormones (Hormone) Chemical substances secreted by a variety of body organs that are carried by the bloodstream and usually influence cells some distance from the source of production. Hormones signal certain enzymes to perform their functions and, in this way, regulate such body functions as blood sugar levels, insulin levels, the menstrual cycle, and growth. These can be prescription, over-the-counter, synthetic or natural agents. Examples include adrenal hormones such as corticosteroids and aldosterone; glucagon, growth hormone, insulin, testosterone, estrogens, progestins, progesterone, DHEA, melatonin, and thyroid hormones such as thyroxine and calcitonin.
Hypertension High blood pressure. Hypertension increases the risk of heart attack, stroke, and kidney failure because it adds to the workload of the heart, causing it to enlarge and, over time, to weaken; in addition, it may damage the walls of the arteries.
Hypoglycemia A condition characterized by an abnormally low blood glucose level. Severe hypoglycemia is rare and dangerous. It can be caused by medications such as insulin (diabetics are prone to hypoglycemia), severe physical exhaustion, and some illnesses.
Hypothyroidism (Hypothyroid) Diminished production of thyroid hormone, leading to low metabolic rate, tendency to gain weight, and sleepiness.
Idiopathic Arising spontaneously or from an obscure or unknown cause.
Immune System (Immune Response, Immunity) A complex that protects the body from disease organisms and other foreign bodies. The system includes the humoral immune response and the cell-mediated response. The immune system also protects the body from invasion by making local barriers and inflammation. The process may involve acquired immunity (the ability to learn and remember a specific infectious agent), or innate immunity (the genetically programmed system of responses that attack, digest, remove, and initiate inflammation and tissue healing).
Leiomyomas (Fibroids, Fibromyoma, Leiomyoma, Myofibroma) Benign tumors of the involuntary muscle. An encapsulated tumor made up of disorganized and irregular connective tissue. The most common of these is the "fibroid" tumor that develops in many women. It is really a leiomyoma of the uterus.
Luteinizing Hormone Anterior pituitary hormone stimulating estrogen production by the ovary; promoting formation of progesterone by the corpus luteum in women and stimulating testosterone release in men.
Melatonin The only hormone secreted into the bloodstream by the pineal gland. The hormone appears to inhibit numerous endocrine functions, including the gonadotropic hormones. Research exists on the efficacy of melatonin in treating jet lag and certain sleep disorders. Dosages greater than l milligram have been associated with drowsiness, headaches, disturbances in sleep/wake cycles and is contraindicated in those who are on antidepressive medication. It also negatively influences insulin utilization.
Menopause (Menopausal) The cessation of menstruation (usually not official until 12 months have passed without periods), occurring at the average age of 52. As commonly used, the word denotes the time of a woman's life, usually between the ages of 45 and 54, when periods cease and any symptoms of low estrogen levels persist, including hot flashes, insomnia, anxiety, mood swings, loss of libido and vaginal dryness. When these early menopausal symptoms subside, a woman becomes postmenopausal.
Menorrhagia Abnormally heavy and/or long menstrual period.
Menstruation (Menses, Menstrual, Menstrual Cycle, Menstrual Cycles, Menstrual Flow, Menstrual Phase, Monthly Cycle) The periodic discharge of blood, tissue fluid and mucus from the endometrium (lining of the uterus) that usually lasts from 3 - 5 days. It is caused by a sudden reduction in estrogens and progesterone.
Metabolite (Metabolites) Any product (foodstuff, intermediate, waste product) of metabolism.
Methionine Essential amino acid. Dietary source of sulfur and methyl groups. Important for proper growth in infants, nitrogen balance in adults, healthy nails and skin and the synthesis of taurine, cysteine, phosphatidylcholine (lecithin), bile, carnitine and endorphins. It is an antioxidant nutrient and lipotropic agent which promotes the physiological utilization of fat.
Milliliter (mL) 0.001 or one thousandth of a liter.
mol (mmol, nmol, pmol, umol) Mole. The amount of a substance that contains as many atoms, molecules, ions, or other elementary units as the number of atoms in 0.012 kilograms of carbon 12. The number is 6.0225 × 10^23, or Avogadro's number. Also called gram molecule. mmol: millimole: 0.001 or one thousandth of a mole. umol: micromole: 0.000001 or one millionth of a mole. nmol: nanomole: 0.000000001 or one billionth of a mole. pmol: picomole: 0.000000000001 or one trillionth of a mole.
Multiple Sclerosis (MS) Demyelinating disorder of the central nervous system, causing patches of sclerosis (plaques) in the brain and spinal cord, manifested by loss of normal neurological functions, e.g. muscle weakness, loss of vision, and mood alterations.
Myelin A substance made of protein and lipid (fat) that protects the nerves, especially in the brain. The myelin sheath is a jacket of insulation around axons to help them conduct their electrical discharges quickly down the axon.
Nanogram (ng) 0.000000001 or a billionth of a gram.
Osteoblast (Osteoblastic, Osteoblasts) A bone-forming cell.
Osteoporosis A disease in which bone tissue becomes porous and brittle. The disease primarily affects postmenopausal women.
Ovary (Ovaries) Ovaries are about the size of an almond and lie on either side of the lower abdomen beside the uterus. They usually produce one egg each month and whether the egg is fertilized or not, the reproductive process follows a monthly cycle, with constant changes in various hormone levels, preparing another opportunity for conception. The ovary is responsible for most of the estrogen production in women. At menopause (sometime after middle-age), egg production ceases and hormone levels drop significantly.
Panic Attack (Panic Attacks) A brief, irrational episode of fear that is perceived as so real that an individual may be driven to escape from the place or situation where it occurs. The attack is sudden and increases in severity until it leaves, usually within ten minutes. Panic attack symptoms are numerous and involve both mental and physical signs and symptoms. A panic attack can occur in other anxiety states such as agoraphobia and with certain activities and places. It may occur spontaneously without an apparent cause.
Precursor (Precursors) A biochemical substance, such as an intermediate compound in a chain of enzymatic reactions, from which a more stable or definitive product is formed.
Premenstrual Syndrome (PMS) PMS consists of various physical and/or emotional symptoms that occur in the second half of the menstrual cycle, after ovulation. The symptoms begin about midcycle, are generally the most intense during the last seven days before menstruation and include: acne; backache; bloating; fatigue; headache; sore breasts; changes in sexual desire; depression; difficulty concentrating; difficulty handling stress; irritability; tearfulness.
Progesterone This is the hormone secreted after ovulation by the corpus luteum. It is a steroid (similar to a cholesterol), enters receptive cells to stimulate their growth, and acts as an anabolic agent. Estrogen should be viewed as the primary coat underneath all the cycles during a woman's reproductive years, with progesterone, its antagonist, surging for ten or twelve days in ovulatory months. Most of the actions of progesterone cannot occur without estrogen having previously induced the growth of progesterone-receptive binding sites.
Prolactin An anterior pituitary peptide hormone that initiates and maintains lactation.
Prostate The prostate gland in men that surrounds the neck of the bladder and the urethra and produces a secretion that liquefies coagulated semen.
Red Blood Cell (Erythrocyte, Erythrocytes, RBC, Red Blood Cells) Any of the hemoglobin-containing cells that carry oxygen to the tissues and are responsible for the red color of blood.
Saliva (Salivary) The watery mixture of secretions from the salivary and oral mucous glands that lubricates chewed food and moistens the oral walls.
Serum The cell-free fluid of the bloodstream. It appears in a test tube after the blood clots and is often used in expressions relating to the levels of certain compounds in the blood stream.
Sodium An essential mineral that our bodies regulate and conserve. Excess sodium retention increases the fluid volume (edema) and low sodium leads to less fluid and relative dehydration. The adult body averages a total content of over 100 grams of sodium, of which a surprising one-third is in bone. A small amount of sodium does get into cell interiors, but this represents only about ten percent of the body content. The remaining 57 percent or so of the body sodium content is in the fluid immediately surrounding the cells, where it is the major cation (positive ion). The role of sodium in the extracellular fluid is maintaining osmotic equilibrium (the proper difference in ions dissolved in the fluids inside and outside the cell) and extracellular fluid volume. Sodium is also involved in nerve impulse transmission, muscle tone and nutrient transport. All of these functions are interrelated with potassium.
Steroid (Steroids) Any of a large number of hormonal substances with a similar basic chemical structure containing a 17-carbon 14-ring system and including the sterols and various hormones and glycosides.
Stroke (Stroke-Type Event) A sudden loss of brain function caused by a blockage or rupture of a blood vessel that supplies the brain, characterized by loss of muscular control, complete or partial loss of sensation or consciousness, dizziness, slurred speech, or other symptoms that vary with the extent and severity of the damage to the brain. The most common manifestation is some degree of paralysis, but small strokes may occur without symptoms. Usually caused by arteriosclerosis, it often results in brain damage.
Sublingual (Sublingually) Situated or administered under the tongue, for example sublingual glands or sublingual tablets.
Testicles (Testicle, Testicular) Egg-shaped sex glands in the scrotum that secrete male hormones such as testosterone, and produce sperm.
Testosterone The principal male sex hormone that induces and maintains the changes that take place in males at puberty. In men, the testicles continue to produce testosterone throughout life, though there is some decline with age. A naturally occurring androgenic hormone.
Thyroid (Thyroid Gland) The thyroid gland is an organ with many veins, anchored around the front of the throat near the voice box. It is essential to normal body growth in infancy and childhood. It absorbs iodine from the diet and releases thyroid hormones - iodine-containing compounds that help govern the rate of the body's metabolism (its total life processes), affecting body temperature, and regulating protein, fat and carbohydrate catabolism in all cells. They keep up growth hormone release, skeletal maturation, and heart rate, force, and output. They promote central nervous system growth, stimulate the making of many enzymes, and are necessary for muscle tone and vigor. To a high degree, metabolism is regulated by the hormone thyroxine, which can be made by the thyroid if enough organic iodine is available. An enlarged thyroid gland that is not cancer is sometimes called goitre.
Tri-Methyl-Glycine (DMG, TMG) After supplying a methyl group, TMG becomes di-methyl-glycine. DMG, a natural component of animal and plant metabolism, positively influences the immune response in laboratory animals and humans and boosts physical and mental performance.
Uterine Fibroids Fibroids are the most frequently seen tumors of the female reproductive system. Also known as uterine myomas, leiomyomas, or fibromas, they are firm, compact tumors that are made of smooth muscle cells and fibrous connective tissue that develop in the uterus. In more than 99% of cases they are benign (non-cancerous). They may range in size from the size of a pea to the size of a softball or small grapefruit. Some women never have symptoms, the most common of which are: heavy or prolonged menstrual periods; abnormal bleeding between menstrual periods; pelvic pain; frequent urination; low back pain; pain during intercourse; a firm mass, often located near the middle of the pelvis, which can be felt by a physician.
Uterus (Uterine) The part of the female reproductive system specialized to allow the implantation, growth and nourishment of a fetus during pregnancy.
Vitex Vitex agnus castus. Common name: chaste tree berry.
Yeast A single-cell organism that may cause infection in the mouth, vagina, gastrointestinal tract, and any or all bodily parts. Common yeast infections include candidiasis and thrush.
Last updated: May 11, 2008
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