Progressive Health Blog

Omega 3s Promote Anti-Aging

2010-03-11T18:15:50Z

Omega-3 fatty acids found in fish oil are known to reduce oxidative stress (damage caused by toxic free radicals) and have anti-inflammatory effects. Omega 3s consist of biologically active EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). Telomeres, located at the tips of DNA chromosomes, shorten with aging and oxidative stress. Now research reports that high omega 3 DHA and EPA levels may slow aging in heart disease patients. This suggests that omega 3s may protect telomeres from oxidative damage and promote anti-aging.

The study, published in the Journal of the American Medical Association, examined the association of omega 3 levels and telomere length in heart disease patients. Researchers at the University of California, San Francisco analyzed data from a 2000 to 2002 Heart and Soul Study of 608 men and women with stable coronary artery disease. Omega 3 DHA and EPA levels and DNA telomere length were determined from the participant's blood samples.

The researchers found that participants with the highest average DHA and EPA levels had the slowest rate of telomere shortening. Furthermore, participants with the lowest average DHA and EPA levels had faster rates.

"Among this cohort of patients with coronary artery disease, there was an inverse relationship between baseline blood levels of marine omega-3 fatty acids and the rate of telomere shortening over 5 years," the study authors conclude.

Promote Anti-Aging with Revitle

Taking antioxidants and other nutrients can help prevent the damaging effects of free radicals (unstable molecules that cause damage to cells) and inflammation associated with degenerative diseases and aging.

Progressive Health's Revitle is a potent anti-aging supplement specifically developed to promote youthfulness, combat aging and reduce the risk for serious disease. Revitle features omega 3 fatty acids as well as green tea, cordyceps, grape seed, coenzyme Q10, NAC (n-acetyl l-cysteine), alpha lipoic acid, ginkgo biloba, hawthorne, Siberian ginseng, bilberry, and essential vitamins and minerals.

Your Thoughts

Are you using alternative therapies to promote anti-aging? Please comment below.

Zinc and Psychomotor Development in Infants

2010-03-11T17:00:00Z

Numerous studies have been published examining the effect of zinc supplementation on various measures of psychomotor development in infants and young children. The research has been conflicting, which is likely due to the fact that some of the subjects were not zinc deficient and/or they were not raised in a stimulating environment. An article published in the August 2005 issue of the American Journal of Clinical Nutrition (2005;82(2):399-405) demonstrates that both zinc and psychosocial stimulation is required for psychomotor development in children.

Researchers conducted a randomized double-blind trial to investigate their hypothesis and check the effect of zinc supplementation on growth and morbidity. One-hundred fourteen undernourished children in Jamaica, aged 9-30 months, completed the study. They were grouped into two age categories (9-18 months, and 19-30) and then further divided into groups given either 10mg of elemental zinc or placebo for 6 months. As well, they were grouped into stimulating (teaching a detailed curriculum to mothers based on Piagetian concepts) and non-stimulating environments. The results showed that the children who received both treatments (zinc and stimulation) had the highest developmental scores. There was an effect of stimulation alone on overall development scores, but zinc alone only benefited hand-eye scores. However, zinc supplementation did reduce diarrheal morbidity.

As we know, proper nutrition and a positive environment are important for all aspects of growth in children. This study supports the use of at least zinc supplements in undernourished children. The authors suggest that zinc may improve alertness and activity levels, allowing the children to derive more benefit from stimulation.

Niacin Helps Treat Stroke

2010-03-10T17:18:57Z

Stroke is the third leading cause of death in the U.S. and the leading cause of functional impairments. High blood cholesterol can build-up cholesterol-filled plaque (atherosclerosis) in blood vessels and cause strokes. Previous studies suggest that niacin or vitamin B3 can increase HDL ("good") cholesterol and reduce plaque in arteries. Now research reports that niacin may help restore neurological function after stroke. These results may have important implications for human brain research.

The study was presented at the International Stroke Conference in San Antonio, Texas. Researchers at the Henry Ford Neuroscience Institute administered niacin to laboratory rats with ischemic stroke. The researchers found that niacin helped restore neurological function in the brain. Niacin increased 'good' HDL cholesterol, which increased blood vessel and nerve cell growth in the brain. This resulted in significant improvement in neurological function.

"Niacin essentially re-wires the brain which has very exciting potential for use in humans," says Michael Chopp, Ph.D., scientific director of the Henry Ford Neuroscience Institute, in a news release. "The results of this study may also open doors in other areas of neurological medicine, including brain injury."

The researchers will be conducting clinical trials to investigate the effects of extended-release niacin on human stroke patients. "If this proves to also work well in our human trials, we'll then have the benefit of a low-cost, easily-tolerable treatment for one of the most neurologically devastating conditions," says Dr. Chopp.

Promote Healthy Cholesterol Levels with Resterol

Supplementing with natural nutrients can help promote cholesterol health.

Progressive Health's Resterol is a cholesterol-supporting supplement that features researched nutrients like gum guggul, garlic, turmeric, inositol, policasanol, pantethine and vitamin E.

Your Thoughts

Are you using alternative therapies to help managel your cholesterol? Please comment below.

Exercise Relieves Anxiety

2010-03-09T16:02:48Z

Patients with chronic diseases such as cancer and heart disease often experience anxiety about their condition. However, prescription drugs for anxiety may cause serious side effects. Now research reports that exercise can relieve anxiety in patients with chronic illness. This finding suggests that exercise may provide a low-cost and effective treatment for anxiety without using medications that can cause adverse effects.

The review, published in Archives of Internal Medicine, examined the effects of exercise on anxiety. Researchers at the University of Georgia searched the Physical Activity Guidelines for Americans Scientific Database and Google Scholar for randomized clinical trials (RCTs), from January 1995 through December 2008. They analyzed 40 studies that fulfilled the study criteria, involving 3,000 patients with chronic diseases.

The researchers found that exercise was associated with a 20 percent reduction in anxiety symptoms. Furthermore, patients who exercised for more than 30 minutes per workout had the largest reduction in anxiety.

"Exercise training programs lasting no more than 12 weeks, using session durations of at least 30 minutes, and an anxiety report time frame greater than the past week resulted in the largest anxiety improvements," the study authors write. "Exercise training reduces anxiety symptoms among sedentary patients who have a chronic illness,"

Relieve Anxiety with Exulin

Nutritional deficiencies can contribute to the symptoms of anxiety and depression. Taking natural nutrients along with a healthful diet and exercise plan can help relieve anxiety and depression.

Progressive Health's Exulin is an anxiety-relief remedy containing clinically evaluated nutrients such as L-phenylalanine, rhodiola rosea, vitamin B6, folic acid, methylcobalamin, St John's Wort and gingko biloba. Exulin helps restore nutrient deficiencies associated with anxiety and depression and alleviate their symptoms.

Your Thoughts

Are you using alternative therapies to help relieve anxiety? We'd love to hear about it! Please share with us below.

Saffron May Save Sight

2010-03-08T17:59:17Z

The Mediterranean spice saffron is rich in potent carotenoids including crocin and safranal. Previous studies suggest that saffron may have antitumor and antioxidant effects. Now breakthrough research reports that saffron may help treat and prevent eye problems such as macular degeneration. Age-related macular degeneration (AMD) is the most common cause of age-related permanent vision loss. The macula, a small area of the eye's retina, deteriorates in AMD, causing blindness. There is no cure for AMD and treatments have limited effectiveness.

The randomized, double-blind study investigated the effects of saffron supplementation on vision. Researchers at the University of Sydney in Australia and the University of L'Aquila in Italy administered a saffron supplement daily to one group of subjects with AMD for three months. They were then administered a placebo supplement for three months. Another group of participants were given the supplements in the reverse order. Eyesight measurements were obtained from the participants.

The researchers found that all of the participants had improvements in their vision while taking saffron. However, the vision benefits disappeared when the participants stopped taking the saffron supplement.

"Saffron appears to affect genes which regulate the fatty acid content of the cell membrane, and this makes the vision cells tougher and more resilient," says study author Professor Silvia Bisti, a visiting scholar based at The VisionCentre at the University of Sydney, in a news release. "Measurements using objective eye sight tests showed patient's vision improved after taking the saffron pill. When they were tested with traditional eye charts, a number of patients could read one or two lines smaller than before, while others reported they could read newspapers and books again."

Promote Vision Health with Visulyn

Progressive Health's Visulyn is a potent vision support formula specifically developed to maximize vision health, improve clarity of vision and reduce the risk for developing eye disease.

Visulyn's scientifically developed formula includes lutein, zeaxanthin, grape seed extract, alpha lipoic acid, bilberry, coQ10, gingko biloba, selenium and taurine.

Your Thoughts

Are you using alternative therapies to promote vision health? Tell us about it.

Folate Lowers Heart Attack Risk

2010-03-08T17:00:00Z

The study, published in American Journal of Clinical Nutrition (2004, vol. 80 no. 2), investigated the association of serum folate and homocysteine (tHcy) levels with acute coronary events risk. Researchers in Finland and at the University of Michigan, Ann Arbor, analyzed data from the Kuopio Ischaemic Heart Disease Risk Factor Study, including 2,682 Finnish middle-aged men who did not have a history of coronary artery disease at baseline, from 1984-1989, and 1,027 participants in a follow-up study for an average of 7.7 years, beginning in 1991-1993. During the follow-up period 114 acute coronary events occurred in 61 men. Blood samples obtained from the participants at the beginning of the study were analyzed for serum folate and homocysteine levels.

Researchers reported that participants with folate level values in the highest one-third had a 65 percent lower risk of heart attack than those in the lowest third. Findings also revealed that high homocysteine levels were not associated with an increased risk for heart attack. "Ongoing intervention trials should indicate whether the use of vitamin supplementation to reduce homocysteine concentrations prevents heart disease or whether high circulating tHcy concentrations and low circulating folate concentrations are simply markers of an unhealthy lifestyle or existing atherosclerosis," the study authors conclude.

]]> REFERENCES:
1. Voutilainen S et al. Serum folate and homocysteine and the incidence of acute coronary events: the Kuopio Ischaemic Heart Disease Risk Factor Study. Am J Clin Nutr 2004 Aug;80(2):317-323.

High Altitude Weight Loss Effect

2010-03-07T17:12:59Z

New research reports that high altitudes may cause weight loss in obese people. The obese participants did not go on a diet or exercise more. However, at high altitudes the obese participants had increased metabolisms and levels of leptin, causing them to naturally eat less. Gut hormones such as leptin are known to produce feelings of satiety (fullness).

The study, published in the journal Obesity, examined the effect of a low-oxygen environment (hypobaric hypoxia) at high altitude in obese people. Researchers at the University Hospital of Ludwig-Maximilians-University in Munich, Germany analyzed data from 20 obese male participants, with an average weight of 230 pounds. The researchers monitored the participants' diet and activity levels for one week, while staying at a mountain research facility 8,600 feet above sea level. The subjects were then followed for four weeks when brought down to sea level.

The researchers found that the participants lost about 3.3 pounds. Furthermore, their leptin levels and metabolic rate were significantly increased. Food intake and blood pressure were significantly decreased. These findings suggest that the participants lost weight due to decreased appetites and increased metabolisms.

"This study shows that obese subjects lose weight at high altitudes," the study authors write. "This may be due to a higher metabolic rate and reduced food intake. Interestingly, leptin levels rise in high altitude despite reduced body weight. Hypobaric hypoxia seems to play a major role, although the physiological mechanisms remain unclear. Weight loss at high altitudes was associated with clinically relevant improvements in diastolic blood pressure."

Lipitrex Promotes Weight Management

An effective way to promote weight management is to eat healthfully, exercise regularly, and supplement with natural nutrients.

Progressive Health's Lipitrex is a weight management supplement that curbs appetite, burns fat, jump starts the metabolism and increases energy. Lipitrex contains scientifically evaluated nutrients like pinnothin, CLA, bitter orange, chromium, green tea, guarana and caffeine.

Your Thoughts

Have you noticed a weight loss effect when on a mountain holiday? Please share with us below.

Fish and Soy Oils Improve Heart Health

2010-03-07T17:00:00Z

The randomized study, published in the Chest Journal (2005, vol 127 issue 4), investigated the cardioprotective mechanisms of marine-derived omega-3 fatty acids (fish oil) versus plant-derived omega-3 fatty acids (soy oil). Researchers from Emory University School of Medicine, in Atlanta, administered a daily 2 gram dose of either fish oil or soy oil to 58 elderly nursing home residents. The researchers measured the participants' heart rate variability (HRV) changes while resting supine every other day for 6 months. An HRV baseline for each participant was established by an initial 2 month period without supplementation.

At the end of the study, the researchers found that all of the participants demonstrated significant improvements in cardiac function. However, those participants taking fish oil supplements experienced positive results more quickly than the participants taking soy oil. "Supplementation with 2g/d of fish oil was well tolerated and was associated with a significant increase in HRV," the study authors conclude. "Supplementation with 2g/d of soy oil was associated with a lesser but significant increase in HRV."

]]> REFERENCES:
1. Holguin F et al. Cardiac autonomic changes associated with fish oil vs soy oil supplementation in the elderly. Chest. 2005 Apr;127(4):1102-7.

Chocolate Lowers Diabetes and Blood Pressure Risks

2010-03-06T17:00:00Z

The randomized study, published in the American Journal of Clinical Nutrition (2005, vol 81 no 3), investigated the effects of dark chocolate versus white chocolate on blood pressure and glucose and insulin levels. Researchers from the University of L'Aquila, in L'Aquila, Italy, administered a daily dose of 100 grams of dark chocolate, containing 500 milligrams of polyphenols, or 90 grams of white chocolate, containing no polyphenols, to 15 healthy subjects for 15 days. The participants entered a cocoa-free phase of 7 days during the first week of the study and then after the 15 day cocoa phase, and underwent an oral-glucose-tolerance test (OGTT) after each phase. In addition, the participants' blood pressure and heart rates were measured daily.

At the end of the study, the researchers found that dark chocolate supplementation was associated with significantly improved insulin resistance and decreased blood pressure, while white chocolate had no effect. Findings revealed that dark chocolate significantly decreased HOMA-IR, a marker of insulin resistance, and increased QUICKI and the ISI, both indexes of insulin sensitivity. "In conclusion, the current study showed that polyphenol-rich dark chocolate but not white chocolate (which contains cocoa butter) decreases blood pressure and improves insulin sensitivity in healthy persons," the study authors write. "These findings indicate that dark chocolate may exert a protective action on the vascular endothelium also by improving insulin sensitivity."

]]> REFERENCES:
1. Grassi D et al. Short-term administration of dark chocolate is followed by a significant increase in insulin sensitivity and a decrease in blood pressure in healthy persons. Am J Clin Nutr 2005 Mar;81(3):611-614.

Gut Bacteria Linked to Diabetes

2010-03-04T13:55:13Z

Probiotics such as acidophilus and bacillus are beneficial bacteria found in the gut (intestines). Probiotics are known to help support GI (gastrointestinal) health and immunity. Now for the first time research reports that gut bacteria of diabetics differs from non-diabetics. This discovery may provide new therapies for modifying gut bacteria with probiotics to help manage diabetes.

The study, published in PLoS One, examined the differences between gut bacterial microflora in diabetic and non-diabetic people. Researchers at the University of Copenhagen in Denmark evaluated 36 men with different ages and BMIs (body mass indices). Half of the men were type-2 diabetics. Fecal samples were obtained from the participants. The researchers analyzed the fecal bacterial composition of the samples.

The researchers found that type-2 diabetes is linked with compositional differences in gut bacteria. The diabetic group had reduced proportions of Firmicutes and Clostridia bacteria, compared with non-diabetics. In addition, the ratios of Bacteroidetes to Firmicutes were positively correlated with reduced glucose tolerance.

"The results of this study indicate that type 2 diabetes in humans is associated with compositional changes in intestinal microbiota," the study authors conclude. "The level of glucose tolerance should be considered when linking microbiota with metabolic diseases such as obesity and developing strategies to control metabolic diseases by modifying the gut microbiota."

Ectopial Supports GI Health

Supplementing with a GI supplement like Progressive Health's Ectopial can support GI health and manage constipation symptoms. The advanced formula contains colon supporting ingredients such as the probiotic Lactobacillus acidophilus, psyllium seed husk, oat bran fiber, slippery elm (inner bark), althea officinalis (marshmallow) and vitamin C. Ectopial's natural nutrients relieve and prevent constipation symptoms and promote GI function without the use of dangerous laxatives.

Your Thoughts

Are you using alternative therapies to help manage diabetes? Please comment below!

Thyroid Disease Linked to Pesticides

2010-03-03T16:48:52Z

The thyroid gland, located in the neck, secretes thyroid hormones regulating growth, development and metabolic functions. In hypothyroidism (underactive thyroid) the thyroid gland produces an insufficient amount of thyroid hormone. In hyperthyroidism (overactive thyroid) the thyroid gland produces too much thyroid hormone. Now research reports that pesticide exposure may be linked to thyroid disease.

The study, published in the American Journal of Epidemiology, examined the association between pesticides and thyroid disease in women. Researchers at the University of Nebraska Medical Center in Omaha, evaluated 16,500 women living in Iowa and North Carolina married to men applying for pesticide certification. About 1 to 8 percent of the general population are diagnosed with thyroid disease.

The researchers found that 12.5% of women had thyroid disease, with 7% having hypothyroidism (underactive thyroid) and 2 percent having hyperthyroidism (overactive thyroid). Furthermore, women married to men using organochlorine insecticides (like DDT and lindane) had a 1.2 times greater risk of hypothyroidism. Women exposed to fungus killers had a 1.4 times greater risk of hypothyroidism.

"These data support a role of organochlorines, in addition to fungicides, in the etiology of thyroid disease among female spouses enrolled in the Agricultural Health Study," the study authors conclude.

Promote Thyroid Health with Thyax

Taking a natural supplement like Progressive Health's Thyax can help restore normal thyroid hormone balance, relieve hypothyroid symptoms and promote thyroid health. Thyax contains a synergistic blend of clinically proven ingredients including tyrosine, phenylalanine, B-vitamin compounds, iodine, zinc, copper and selenium.

Your Thoughts

Are you using alternative therapies to manage thyroid disease? Care to comment? Please share with us below!

Acupuncture Relieves Menstrual Pain

2010-03-02T18:39:43Z

Approximately half of young women experience menstrual pain (primary dysmenorrhoea). Menstrual cramps can be severe and may occur with other symptoms such as diarrhea, headache and backache. Pain drugs, heat application and exercise are commonly prescribed to relieve period pain. Now research reports that acupuncture may effectively relieve period pain. Traditional Chinese acupuncture employs needles to move the vital life force (called chi).

The review, published in BJOG: An International Journal of Obstetrics and Gynaecology, examined the effectiveness of acupuncture in treating primary dysmenorrhoea. Researchers at Kyung Hee University Medical Center in Seoul, South Korea searched nineteen electronic databases for randomized controlled trials (RCTs) through July 2008. They found 27 studies including 3,000 women that fulfilled the study criteria.

The researchers found that acupuncture was associated with a significant reduction in menstrual pain, compared with pharmacological treatment. However, two RCTs did not find a difference between acupuncture and sham acupuncture (control).

"The review found promising evidence in the form of RCTs for the use of acupuncture in the treatment of primary dysmenorrhoea compared with pharmacological treatment or herbal medicine. However, the results were limited by methodological flaws," the study authors write.

Some experts believe that acupuncture may help regulate the brain's opioid pain receptors.

Menstium Relieves PMS Symptoms

Supplementing with natural nutrients can help relieve PMS (premenstrual syndrome) and support hormonal balance

Progressive Health's Menstium is an all-natural PMS remedy containing vitex (chasteberry), dong quai (angelica sinensis), licorice (Glycyrrhiza glabra), L-theanine, vitamins and minerals. Menstium is formulated to effectively relieve the physical and emotional symptoms associated with PMS.

Your Thoughts

Are you using alternative therapies to relieve your menstrual pain? We'd love to hear about it! Please share with us below.

Are Flu Vaccines Ineffective?

2010-03-01T19:47:32Z

Internationally, the World Health Organization is reporting a worldwide decline in H1N1 swine flu activity. There has been debate among experts if the swine flu still warrants vaccination. Now research reports there is "poor quality" evidence that flu vaccines effectively prevent influenza illness in the elderly. The study was conducted by the Cochrane Collaboration, a non-profit group that reviews scientific evidence for medical treatments,

The review, published in Cochrane Database of Systematic Reviews, examined 75 studies of influenza vaccines. Researchers at the Cochrane Collaboration in Rome, Italy, analyzed randomized controlled trials (RCTs), quasi-RCTs, and case-control studies assessing influenza vaccine effectiveness against influenza illness or influenza-like illness.

The researchers found only one RCT that detected vaccine effectiveness again flu symptoms, although the study did not report any effect against flu complications. The rest of the studies were judged to be of low quality, making data interpretation inconclusive.

"The available evidence is of poor quality and provides no guidance regarding the safety, efficacy or effectiveness of influenza vaccines for people aged 65 years or older," the study authors write. "To resolve the uncertainty, an adequately powered publicly-funded randomised, placebo-controlled trial run over several seasons should be undertaken."

Seasonal Support All-Natural Colds and Flu Remedy

Prevention helps reduce the risk of colds and flu infection. Some preventive ways include frequent hand washing, maintaining a balanced diet, drinking adequate fluids, getting plenty of sleep and avoiding people who are ill. Supplementing with natural nutrients can also help prevent infections.

Progressive Health's Seasonal Support is an all-natural colds and flu remedy containing zinc, vitamin C, bromelain, spirulina, inositol, astragulus, beta glucan, echinacea, golden seal, immune enhancer AG and elderberry. Seasonal Support provides year round, maximum immune support.

Your Thoughts

Did you get a swine flu vaccination this winter? Do you believe it has helped prevent flu infection? Please comment below.

Low Carb Diet Reduces Weight and Blood Pressure

2010-02-28T20:19:33Z

Simple (refined) carbs, such as sugars, white flour products (white bread, white pasta, baked goods, junk foods) and white rice are digested and absorbed quickly, causing fat (lipid), blood sugar and insulin levels to rapidly increase. These harmful effects are linked to obesity, diabetes and heart disease. Now research reports that a low carb diet can reduce weight as well as improve blood pressure.

The study, published in Archives of Internal Medicine, compared the effects of a low-carbohydrate ketogenic diet (LCKD) with orlistat drug therapy and a low fat diet (O + LFD). Orlistat, the only nonprescription weight loss drug approved by the FDA, blocks absorption of fat from food. It is associated with side effects such as gas and incontinence.

Researchers at the VA Medical Center in Durham, North Carolina, administered the two diets to 146 overweight or obese adults for 48 weeks. About one third of the participants had type 2 diabetes. The participants were randomly assigned to the LCKD group and the O + LFD group. All of the participants received diet instructions at group meetings. Body weight, blood samples and blood pressure readings were obtained from the participants.

The researchers found that the LCKD group and the O + LFD group had similar improvements in body weight reduction and cholesterol levels. However, the LCKD group had greater improvements in blood pressure. The LCKD group had a 6 percent reduction in systolic blood pressure and a 4.5 percent reduction in diastolic pressure, compared with only 1.5 and 0.4 percent reductions in the O + LFD group.

"In a sample of medical outpatients, an LCKD led to similar improvements as O + LFD for weight, serum lipid, and glycemic parameters and was more effective for lowering blood pressure," the study authors conclude.

Exitor Weight Loss Remedy

An effective way to promote weight management is to eat healthy, exercise, and supplement with natural nutrients.

Progressive Health's Exitor is a breakthrough weight loss remedy designed to burn fat and calories and boost your metabolism. Exitor contains researched ingredients like guarana, caffeine, green tea, citrus aurantium, DMAE, tyrosine, gum guggle, garcinia cambogia, theobroma cocoa and horse chestnut.

Your Thoughts

If you're on a low carb diet, has it helped control your blood pressure? Please comment below.

Can Free Radicals Cause Fibromyalgia?

2010-02-28T17:00:00Z

The study, published in the Journal of Rheumatology International (2005, vol. 25, no. 3), evaluated the oxidant/antioxidant balance in fibromyalgia patients. Researchers from Mersin University Medical School in Turkey, analyzed data from 85 female fibromyalgia patients, matched with 80 healthy women. The scientists recorded the participants' malondialdehyde (a free radical marker) and superoxide dismutase (an antioxidant marker) levels, pain assessment, age, smoking, and duration of disease.

Researchers found that malondialdehyde levels were significantly higher and superoxide dismutase levels were significantly lower in fibromyalgia patients, compared with the control subjects. Age, BMI, smoking, and duration of disease did not modify the results. "Increased free radical levels may be responsible for the development of fibromyalgia," the study authors conclude. "These findings may support the hypothesis of fibromyalgia as an oxidative disorder."

]]> REFERENCES:
1. Bagis S et al. Free radicals and antioxidants in primary fibromyalgia: an oxidative stress disorder? Rheumatol Int. 2005 Apr;25(3):188-90.