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by author Michael T. Murray, ND
1. Echinacea does work if you use an effective product In 2004, four double-blind studies evaluated echinacea preparations in the treatment of the common cold. In three of these studies, the echinacea products used were shown to be no more effective than placebos. However, one study published in the Journal of Clinical Pharmaceutical Therapy demonstrated quite clearly that echinacea could be of significant value in reducing the severity and duration of a cold. The difference in results from these clinical studies with echinacea is most likely due to a lack of or insufficient quantity of active compounds in the negative studies. The single most important aspect in getting results from an echinacea product is to make sure that it is guaranteed to provide sufficient levels of all three classes of all three key categories of active compounds in their proper ratio. For example, in the study demonstrating positive results, the commercially available echinacea product contained standardized levels of alkamides, cichoric acid, and polysaccharides at concentrations of 0.25, 2.5, and 25 milligrams per millilitres respectively. Prepared from freshly harvested Echinacea purpurea plants, the standardized product showed just how impressive results can be when a high quality product is used. In the double-blind study, the echinacea preparation or placebo was given to 282 subjects aged 18 to 65 years with a history of two or more colds in the previous year. Subjects were instructed to start the echinacea or placebo at the onset of the first symptom related to a cold, consuming 10 doses the first day and four doses per day on subsequent days for seven days. The total daily symptom scores were found to be 23.1 percent lower in the echinacea group than in placebo. The researcher concluded that early intervention with this standardized echinacea product results in reduced symptom severity in subjects with upper respiratory tract infection. Cold symptoms in some people cleared up to three times faster than the placebo group. 2. US Government study acknowledges health benefits of omega-3 fatty acids According to a detailed evaluation of the scientific evidence conducted by scientists at the Tufts-New England Medical Center Evidence-based Practice Center in Boston, the United States Agency for Healthcare Research and Quality concluded that the long-chain omega-3 fatty acids, either from fish consumption or supplementation, significantly reduce the risk of heart attacks and strokes. The review also found other evidence indicating that fish oil supplementation can help lower high blood pressure slightly, reduce risk of coronary artery re-blockage after angioplasty, increase exercise capability among patients with clogged arteries, and reduce the risk of irregular heartbeats–particularly in individuals who’d recently had a heart attack. 3. Omega-3 index emerges as the most significant marker for heart disease When researchers measured the level of the long-chain omega-3 fatty acids EPA and DHA within red blood cells they found that they had discovered one of the most significant predictors of heart disease. This laboratory value was termed the Omega-3 Index and published in Preventive Medicine in July 2004. An Omega-3 Index of equal to or greater than eight percent was associated with the greatest protection, whereas an index of four percent or lower was associated with the least. The Omega-3 Index was shown to be the most significant predictor of coronary artery disease compared to C-reactive protein; total, LDL, or HDL cholesterol; and homocysteine. Researchers subsequently determined that a total of a combined 1,000 mg of EPA and DHA daily is required to achieve or surpass the Omega-3 Index target of eight percent or more. 4. Black cohosh extract exerts anticancer effects against breast cancer cell
Michael T. Murray, ND, is the author of over 20 books, including his latest How to Prevent and Treat Diabetes with Natural Medicine (Riverhead, 2003). Source: alive #267, January 2005 |
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