Genetic Mechanism Helps Explain Chronic Pain Disorders
Researchers at the University of North Carolina at Chapel Hill have discovered that commonly occurring variations of a gene trigger a domino effect in chronic pain disorders. The finding might lead to more effective treatments for temporomandibular joint disorder (TMJD) and other chronic pain conditions.
Catechol-O-methyltransferase (COMT), an enzyme that metabolizes neurotransmitters such as epinephrine, norepinephrine and dopamine and that has been implicated in the modulation of persistent pain, as well as cognition and mood, is regulated by a gene, also called COMT. Previous UNC-led research showed that common genetic variants of this gene are associated with increased pain sensitivity and the likelihood of developing TMJD.
Pain from fibromyalgia is real, experts say
Many people with fibromyalgia—a debilitating pain syndrome that affects 2 to 4 percent of the population—have faced the question of whether the condition is real.
Based on a review of published studies, there is now “overwhelming” evidence that fibromyalgia is real, report two researchers from the University of Michigan Medical School in the journal Current Pain and Headache Reports.
Women on osteoporosis drug can discontinue use with no risk
A long-term study of the most widely used osteoporosis drug has found that many women can discontinue the drug after five years without increasing their fracture risk for as long as five more years.
The study on alendronate was led by researchers at the University of California, San Francisco, and findings are published in the December 27, 2006 issue of the “Journal of the American Medical Association.” The research also showed that women at very high risk of painful spine fractures might be better-off continuing treatment.
“This has important implications as it has not been known whether treatment of osteoporosis should be continued indefinitely,” said lead author Dennis Black, PhD, professor in the UCSF Department of Epidemiology and Biostatistics. “Because women with osteoporosis, particularly older post-menopausal women, often need to take multiple drugs, this would be welcome news for this group.”
