A gene associated with susceptibility to chronic pain caused by nerve injury in humans has been identified by a team of Israeli and international researchers, offering hope of new treatments for sufferers everywhere.
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Chronic pain affects about 20 percent of adults worldwide, and can range from persistent headaches, to back pain, the pain of arthritis, and even psychogenic pain, where doctors can't find the cause for a constant pain.
While it is recognized that some people are more susceptible than others to chronic pain, no one knows why. Given the same injury and the same operation, people will suffer variable degrees of pain, even under nearly identical circumstances.
Now researchers at the Hebrew University of Jerusalem (HUJ), the University of Toronto in Canada, Sanofi-Aventis in Germany and the Karolinska Institute Center for Oral Biology in Sweden, believe they may have found the answer in genetics.
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