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PMS-A is the most common PMS symptom category and is related most strongly to an estrogen excess and progesterone deficiency in the luteal phase. Symptom ratings correspond to the raised serum estrogen levels, and serum estrogen to progesterone ratios give the best correlation. There is no significant correlation of symptoms with the decreased progesterone levels.
Causes & Development
Estrogens appear to affect mood by suppressing type A-monoamine oxidase (MAO) while enhancing type B-MAO. These enzymes are involved in the oxidation of biogenic amines - norepinephrine, epinephrine, dopamine, and serotonin - which have significant effects on mood and behavior. The net effect of estrogen on these MAOs is to increase the levels of epinephrine, norepinephrine and serotonin (all normally deactivated by MAO-A) and decrease the levels of dopamine and phenylethylamine (both normally metabolized by MAO-B).
The effects of these changes on mood and behavior are well documented: epinephrine triggers anxiety; norepinephrine, hostility and irritability; serotonin, at high levels, nervous tension, drowsiness, palpitations, water retention and inability to concentrate and perform. Dopamine is believed to counteract these three amines by inducing a feeling of relaxation and increasing mental alertness. It is of interest to note that a decreased dopamine level in the hypothalamus is also believed to be central to the hormonal imbalances found in polycystic ovarian disease.
Estrogens also affect mood by competing for pyridoxal-5-phosphate binding sites, stimulating hepatic tryptophan pyrolase (shunting away from serotonin synthesis), and decreasing glucose tolerance.
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Signs, symptoms & indicators of Premenstrual Syndrome PMS A (Anxiety):
Premenstrual Syndrome PMS A (Anxiety) suggests the following may be present:
Recommendations and treatments for Premenstrual Syndrome PMS A (Anxiety): | | | | | Hormone |  Natural Progesterone |
Vitamins |
 Vitamin B6 (Pyridoxine) | In one study, women received 50mg per day of vitamin B6 or a placebo for 3 months. Symptoms amongst these women included depression, irritability, tiredness, headache, breast tenderness and swollen abdomen/hands. At this dose depression, irritability and tiredness were the only symptoms to respond and they were reduced by 50%. [Gynecol Obstet Invest 1997;43(2): 120-124] |
 Bioflavonoids |
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KEY | | Strong or generally accepted link |  | | Proven definite or direct link | | | May do some good | | | Likely to help | | | Highly recommended |
GLOSSARY
Abdomen (Abdominal)
That part of the body between the chest and the hips that contains the stomach, intestines, liver, bladder, pancreas and other organs.
Adrenaline (Epinephrin, Epinephrine)
A hormone secreted by the adrenal medulla that is released into the bloodstream in response to physical or mental stress, as from fear or injury. It initiates many bodily responses, including the stimulation of heart action and an increase in blood pressure, metabolic rate, and blood glucose concentration.
Anxiety
Apprehension of danger, or dread, accompanied by nervous restlessness, tension, increased heart rate, and shortness of breath unrelated to a clearly identifiable stimulus.
Dopamine
A neurohormone; precursor to norepinephrine which acts as a stimulant to the nervous system. Carries signals between neurons and controls feelings of satisfaction, arousal, reward and mood.
Enzymes (Enzyme)
Specific protein catalysts produced by the cells that are crucial in chemical reactions and in building up or synthesizing most compounds in the body. Each enzyme performs a specific function without itself being consumed. For example, the digestive enzyme amylase acts on carbohydrates in foods to break them down.
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.
Hypothalamus (Hypothalmus)
Tucked deep inside the brain, this gland is an important supervisory center, regulating many body functions. It is important for longevity and coordinates the entire endocrine system, especially in connection with the pituitary. The hypothalamus is located immediately below the thalamus at the center of the brain, and controls many automatic functions of the body. This means it has the power to govern the autonomic (automatic or subconscious) nervous system. The hypothalamus also controls pituitary output by secreting specific chemicals to the pituitary's front lobe. Despite its importance in maintaining homeostasis, the hypothalamus in humans accounts for only 1/300 of total brain weight, and is about the size of an almond.
Liver (Hepatic)
The largest and one of the most complex organs of the body, the liver is responsible for much of the metabolism of fats, proteins and carbohydrates. It is the site of much of the body's detoxification. It is connected very closely with digestion and the regulation of blood sugar, among many other functions. Found behind the ribs on the right side of the abdomen, it has many important functions such as removing harmful material from the blood, making enzymes and bile that help digest food, and converting food into substances needed for life and growth. Hepatic: Pertaining to the liver.
Milligram (mg, Milligrams)
0.001 or a thousandth of a gram.
Monoamine Oxidase (MAO)
An enzyme catalyzing the removal of an amine group from a variety of substrates, including norepinephrine and dopamine. MAO inhibitors block the action of MAO, thus raising the levels of the monoamine neurotransmitters such as norepinephrine, epinephrine, dopamine, and serotonin - which have significant effects on mood and behavior. Epinephrine, norepinephrine and serotonin are normally deactivated by MAO-A while dopamine and phenylethylamine are normally metabolized by MAO-B.
Noradrenaline (Norepinephrine)
Norepinephrine. A catecholamine hormone secreted from the adrenal medulla and post-ganglionic adrenergic fibers in response to hypotension or emotional stress.
Placebo (Placebos)
A pharmacologically inactive substance. Often used to compare clinical responses against the effects of pharmacologically active substances in experiments.
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.
Serotonin
A phenolic amine neurotransmitter (C10H12N2O) that is a powerful vasoconstrictor and is found especially in the brain, blood serum and gastric membranes of mammals. Considered essential for relaxation, sleep, and concentration.
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.
Tryptophan
Essential amino acid. Natural relaxant and sleep aid due to its precursor role in serotonin (a neurotransmitter) synthesis. Along with tyrosine, it is used in the treatment of addictions.
Vitamin B6 (B6, B-6)
Influences many body functions including regulating blood glucose levels, manufacturing hemoglobin and aiding the utilization of protein, carbohydrates and fats. It also aids in the function of the nervous system.
Last updated: Jun 28, 2008
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