Cooling analgesia harnessed to relieve chronic painAugust 22, 2006By experimentally activating a special protein involved in mediating sensations of coolness, researchers have made a breakthrough in understanding how the body's nervous system can be stimulated to relieve chronic pain. The findings are reported by a team led by Susan Fleetwood-Walker and Rory Mitchell of University of Edinburgh and appear in the August 22nd issue of the journal Current Biology, published by Cell Press. Ancient Greek physicians knew of the benefits of cooling to relieve pain, and many traditional remedies use mint oil for relieving pain, but it is only now, in the 21st century, that a mechanism for such analgesic effects has been identified. In their new work, the researchers looked for ways to relieve chronic pain in rats, and they found that certain cooling chemicals, either injected or simply applied in small doses to the skin, have a dramatic natural painkilling effect. The researchers showed that the analgesic effect occurs through activation of a recently identified protein, called TRPM8, that is expressed in nerve cells in the skin and responds to both cool temperatures and cooling chemicals, such as the active ingredients in mint.
TRPM8 belongs to an interesting class of proteins whose members mediate the sensation of diverse stimuli, including taste, temperature, and touch. Approaches using cooling compounds that activate the TRPM8 protein could be used for chronic pain patients-for example, in treating neuropathic pain and arthritis in cases where conventional painkillers have little effect or are of limited use as a result of side effects. Such therapies would make use of the body's own capacity to suppress pain. The discovery of a novel biological mechanism by which cooling analgesia works therefore has great potential for relieving the suffering of millions of chronic pain patients. Cell Press | |||||||||||||||||||||
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Related Chronic Pain News Articles Study examines use of opioids Researchers from Boston University's Slone Epidemiology Center have found that in a given week, over 10 million Americans are taking opioids, and more than 4 million are taking them regularly (at least five days per week, for at least four weeks). These findings appear in the August 31 issue of the journal Pain. Guideline: Surgery may be considered for extreme face pain A new guideline developed by the American Academy of Neurology finds surgery may be considered for people who suffer from extreme, electric shock-like pain in their face and do not respond well to drugs. Epilepsy drug may help alcoholics recover from dependence, small study suggests It's a Catch-22 of the highest order. People with alcohol problems often use alcohol to get to sleep -- but it actually keeps them from getting good-quality sleep all night long. Pitt Team Receives $2.5 Million to Simulate and Analyze Brain, Immune System Activity and Apply Math to Medical Problems In an effort to promote the application of mathematics to medical treatment, researchers in the University of Pittsburgh's Department of Mathematics will undertake a $2.5 million project to create models of how the brain and immune system function and change over time in response to certain illnesses, infections, and treatment. Medicines derived from cannabis: a review of adverse events Researchers at the McGill University Health Centre (MUHC), McGill University and the University of British Columbia (UBC) determined that medical use of cannabinoids do not cause an increase in serious adverse events, but are associated with an increase in some non-serious adverse events. New self-management program offers significant benefits for arthritis patients with chronic pain A new two week programme significantly reduces healthcare visits, pain scores and health distress in arthritis patients with chronic pain. Results were comparable to existing six week self-management programmes and the benefits of the programme were sustained for six months with improvements continuing up to a year later, according to researchers. Common bowel problem linked to chili pepper pain receptor People with irritable bowel syndrome have a higher than usual number of chilli pepper pain receptors, according to a new study published tomorrow (Wednesday 11 June). Acupuncture reduces pain and dysfunction in head and neck cancer patients after neck dissection New data from a randomized, controlled trial found that acupuncture provided significant reductions in pain, dysfunction, and dry mouth in head and neck cancer patients after neck dissection. New study reveals brain cell mechanism of alcohol dependence A study released today reveals a cellular mechanism involved in alcohol dependence. The study, in the May 28 issue of The Journal of Neuroscience, shows that gabapentin, a drug used to treat chronic pain and epilepsy, reduces alcohol intake in alcohol-dependent rats by normalizing chemical communication between neurons, which is altered by chronic alcohol abuse. Mayo Clinic study shows acupuncture and myofascial trigger therapy treat same pain areas Ancient acupuncture and modern myofascial pain therapy each focus on hundreds of similar points on the body to treat pain, although they do it differently, says a physician at Mayo Clinic in Jacksonville who analyzed the two techniques. More Chronic Pain News Articles |
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