| Overview
Fibromyalgia is a disorder that is
characterized by widespread, chronic pain of unspecific origin. Pain may
be experienced in the muscles, tendons, ligaments and joints. Other
areas of the body may be impacted in a manner consistent with tactile
allodynia, which means sensitivity to what may otherwise be considered
non-painful stimuli even when that area is not targeted. In other words,
even the slightest pressure can cause pain to spread to other areas.
While not life-threatening, fibromyalgia can be quite disabling, with
pain varying in intensity and lasting anywhere from a few days to
several months or even years.
It is estimated that fibromyalgia affects more than 5,000,000 Americans,
with at least 80% of this number being women. While women suffer from
fibromyalgia more frequently than men, it is interesting to note that
they usually experience symptoms differently. Women typically feel
widespread pain throughout the body, while men usually experience pain
isolated to the face or an area of the body frequently exercised during
occupational or recreational activities.
Risk Factors
- Gender Fibromyalgia occurs more
frequently in women than men.
- Age While fibromyalgia can
affect anyone of any age, it is most commonly seen in adults between
30 and 50 years of age.
- Family History Fibromyalgia
tends to run in families.
- Sleep Disturbances Those who
experience sleep disturbances, including sleep apnea and restless
legs syndrome, may be at greater risk for developing fibromyalgia.
- Rheumatic Disorders The risk
for fibromyalgia appears to be greater for those who have rheumatic
disorders, such as lupus or rheumatoid arthritis.
- Injury Particularly injury or
trauma to the upper spine.
- Infection There is some
evidence to suggest that viral or bacterial infection may be a
potential cause of fibromyalgia.
- Impaired Muscle Metabolism
Symptoms and
Diagnosis
The American Academy of Rheumatology (ACR)
has set some guidelines to help practitioners arrive at a diagnosis of
fibromyalgia, which stipulate that there must be unexplained tenderness
felt for at least three months in at least 11 of 18 identified tender
points located along the sides, front and back of the body. However,
many practitioners feel that these guidelines are too unyielding and may
not address the symptoms of all candidates. In addition, fibromyalgia
patients often experience pain of varying degree and duration that may
not fall in line with these criteria.
Unfortunately, there is no standard laboratory test that can confirm or
deny the presence of fibromyalgia. To complicate matters, a patient may
spend months or years visiting different doctors to seek an explanation
for their symptoms without success. Therefore, in addition to applying
the ACR criteria, the physician may use other diagnostic tools to help
rule out other conditions that can mimic the symptoms of fibromyalgia,
such as Cushing's syndrome, chronic fatigue syndrome, carpal tunnel,
lupus, or multiple sclerosis.
A discussion of medical and family history will likely also be taken
into account, as well as the appearance of accompanying symptoms
commonly experienced with fibromyalgia. These include:
- Chronic fatigue.
- Sleep disturbances (i.e., sleep apnea
or restless legs syndrome).
- Tingling or numbness.
- Irritable bowel or urinary problems.
- Sexual dysfunction.
- Mood disorders, including depression.
- Frequent tension headaches.
- Cognitive disorders (i.e., poor
concentration).
Causes of
Fibromyalgia
Fibromyalgia is still a poorly understood
disorder. However, researchers have made progress in recent years in
identifying some potential causes. The most current thinking involves
central sensitization, which equates to a reduced threshold of pain due
to an increase in neurotransmission in the brain that triggers pain
signals. Researchers believe that this impairment of the central nervous
system may be caused by inflammatory cytokines, which promote inducible
nitric oxide synthase (INOS) in muscles. Elevated INOS levels produce
several reactions, such as:
- Unwarranted stimulation of pain
receptors.
- Increased levels of pain
neurotransmitters, such as substance P.
- Increased oxidation of free radicals
and by-products of nitric oxide, such as peroxynitrite.
- Impaired flow of nutrients to muscles
following exercise.
There is also some evidence that indicates a relationship between
fibromyalgia and a decrease in hypothalamic-pituitary-adrenal activity,
which can lead to a decrease in available levels of growth hormone,
androgens (steroid hormones), cortisol and DHEA (dehydroepiandrosterone).
Recommended
Supplements in the Treatment of Fibromyalgia
Since oxidative stress is associated with
fibromyalgia, it may be helpful to supplement with antioxidants to help
counteract free radical damage from elevated levels of oxidants, such as
peroxynitrite. Recommended antioxidants include omega-3, vitamin C,
vitamin E and selenium.
The active form of pyridoxine can help to
increase the activity of adenosine triphosphate (ATP), the molecule
responsible for delivering and storing energy in cells. Studies have
shown that fibromyalgia patients are often deficient in ATP.
This nutrient is necessary for energy
production and transport from ATP to muscles. Some studies have shown
that magnesium supplementation is helpful in reducing symptoms of
fibromyalgia.
- SAMe (S-adenosylmethionine)
SAMe is a compound naturally produced by
the body. One of its main actions is regulate the production and
metabolism of neurotransmitters such as serotonin, norepinephrine, and
dopamine. Studies have shown that supplementation with SAMe has helped
fibromyalgia patients, who report a decrease in pain and muscle
strength, as well improved mood and quality of sleep.
Herbs Used in
the Treatment of Fibromyalgia
Cayenne
Cayenne pepper contains capsaicin which,
when prepared in a cream and applied topically, can help to reduce local
pain. Of particular note is that this agent appears to block the
activity of substance P.
Safety
Precautions
Omega-3
- Do not take in combination with
warfarin (Coumadin).
- Discontinue two weeks before and after
any surgical procedure.
Vitamin C
- Do not take if you have kidney stones,
sideroblastic anemia, or sickle cell anemia.
Magnesium
- Do not take if you have a history of
kidney disease.
Vitamin B-6
- Consult with a physician if you are
being treated with levodopa.
SAMe
- Do not combine with antidepressant
medications.
References
1. Pall ML. Nitric oxide and the etiology
of chronic fatigue syndrome: giving credit where credit is due. Med
Hypotheses. 2005a;65(3):631-3.
2. Bagis S, Tamer L, et al. Free radicals
and antioxidants in primary fibromyalgia: an oxidative stress disorder?
Rheumatol Int. 2005 Apr;25(3):188-90.
3. Ozgocmen S, Ozyurt H, et al.
Antioxidant status, lipid peroxidation and nitric oxide in fibromyalgia:
etiologic and therapeutic concerns. Rheumatol Int. 2005a Nov 10;:1-6.
4. Ozgocmen S, Ozyurt H, et al. Current
concepts in the pathophysiology of fibromyalgia: the potential role of
oxidative stress and nitric oxide. Rheumatol Int. 2005b Nov 20;1-13.
5. Vecchiet J, Cipollone F, et al.
Relationship between musculoskeletal symptoms and blood markers of
oxidative stress in patients with chronic fatigue syndrome. Neurosci
Lett. 2003 Jan 2;335(3):151-4.
6. Holdcraft LC, Assefi N, et al.
Complementary and alternative medicine in fibromyalgia and related
syndromes. Best Pract Res Clin Rheumatol. 2003 Aug;17(4):667-83. Review.
7. Tavoni A, Vitali C, Bombardieri S, et
al. Evaluation of S-adenosylmethionine in primary fibromyalgia. A
double-blind crossover study. Am J Med. 83.5A (1987): 107-110.
8. Volkmann H, Norregaard J, Jacobsen S,
et al. Double-blind, placebo-controlled cross-over study of intravenous
S-adenosyl-L-methionine in patients with fibromyalgia. Scand J Rheumatol.
26.3 (1997): 206-211.
Written by Karyn Siegel-Maier 2008
Prepared for Ardis Health |