June 29, 2007
Filed under soy
In an analysis of 9 clinical trials from the past 15 years, researchers found that acupuncture generally seemed to improve knee arthritis sufferers’ pain and stiffness in the short term. The patients had osteoarthritis, a degenerative joint disease associated with age, as opposed to arthritis associated with an autoimmune disorder.
However, a closer look showed that the benefits were limited to trials that compared acupuncture with doing nothing or with “usual care,” such as anti-inflammatory medication.
In trials that compared acupuncture with “sham” acupuncture, on the other hand, there was no clear evidence that the real therapy was more effective.
Sham acupuncture is accomplished by using non-penetrating needles, or inserting needles only into the superficial layer of skin, at random sites rather than the specific points used in real acupuncture. In studies that evaluated electro-acupuncture, the sham version involved phony electrodes and “mock” electrical stimulation of acupuncture points.
The point is to keep study participants from knowing whether they were receiving the real or the placebo treatment. This helps separate the specific effects of a therapy from any placebo effects — where people feel better simply because they believe they’ve been treated.
However, that doesn’t mean acupuncture is not worthwhile, according to the researchers, led by Eric Manheimer of the University of Maryland School of Medicine in Baltimore.
Research does suggest that acupuncture has a “genuine biological effect,” and there was evidence in some studies that the real therapy resulted in somewhat better short-term effects than sham acupuncture, the researchers note.
For their study, Manheimer and his colleagues combined the results of nine clinical trials conducted in Europe, the U.S. and Thailand. The trials included a total of more than 3,500 subjects.
Each trial included a patient group that received acupuncture for knee arthritis, as well as a “control” group. In some studies, control patients were placed on a waiting list for acupuncture, while in others they received some standard therapy that acupuncture patients did not. Control patients in other studies received sham acupuncture.
In general, the Manheimer’s team found, only studies that pitted acupuncture against doing nothing, or against standard care, showed clear benefits. The results of the sham-controlled trials were too mixed to show any benefits, according to the researchers.
The investigators do not, however, dismiss the potential benefits of acupuncture for knee arthritis. Indeed, they note, a possible explanation for the mixed results is that sham acupuncture had some actual biological effects.
Given the overall safety of acupuncture, the researchers conclude, patients can still consider it as one option in a “multidisciplinary approach” to treating knee arthritis.
CBC – Echinacea (紫錐花), a herb widely used to fight the sniffles, helps reduce the risk of getting the common cold and shortens its duration, a new review suggests.
In the July issue of the medical journal The Lancet Infectious Diseases, researchers analyzed the results of 14 published trials on echinacea, or purple coneflower. The beneficial effect was seen after combining results from 1,600 participants. Read more
CM NEWS – Needling specific acupoints may help patients with dementia, a recently published study shows. The acupoint combo seems to increase cerebral glucose metabolism in the brain, as indicated by cerebral functional imaging. Read more
June 25, 2007
Filed under TCM use
Medical News Today – The Australian Government will provide 4 million dollars to the University of Western Sydney to help establish a National Institute for Complementary Medicine.
The institute will develop national priorities for complementary medical research and will coordinate work on these priorities with other research bodies, with an emphasis on clinical trials and studies on herbal medicines.
The institute will also support postdoctoral training to ensure that the industry has the research personnel it needs to expand. It will also provide research findings to the medical community and general public.
The Commonwealth Government has also provided $5 million in grants through the National Health and Medical Research Council to investigate the use and effectiveness of complementary and alternative medicines.
Australian Institute of Health and Welfare statistics show that Australians spend about $1 billion annually on complementary and alternative medicines, including vitamin supplements, homeopathic medicines and traditional Asian and Indigenous medicines.
June 23, 2007
Filed under dementia
CM NEWS – A group of Chinese scientists has finished pre-clinical research for its new anti-dementia drug, dubbed NJS, which is derived from traditional Chinese medicine substances. NJS has just become the first TCM drug that its patent licence is being sold to a UK pharmaceutical firm. Read more