Iron-deficient cells in the brain are mixing up central nervous system signals to the legs and arms causing the irresistible urges to move and creepy-crawly sensations that characterize restless legs syndrome (RLS), a Penn State College of Medicine study reports.
"Our previous studies established a physical cause for RLS showing certain cells in the brain were iron deficient," said James R. Connor, Ph.D., professor and vice chair for neurosurgery, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center. "We have now found a sequence of events that may connect that cellular iron deficiency to the uncontrollable movements of the disorder."
The study was presented today (Oct. 25, 2004) by Xinsheng Wang, M.D., Ph.D., postdoctoral fellow in Connor’s laboratory, at the Society for Neuroscience’s scientific meeting, Neuroscience 2004, held in San Diego. RLS, a syndrome that may affect 5 percent to 10 percent of the U.S. population, causes irresistible urges to move the legs and arms and is often accompanied by creepy-crawly sensations in the limbs. The sensations are only relieved by movement and become worse as the sun goes down, causing night after night of sleeplessness for those with RLS and their partners.
Valerie Gliem | EurekAlert!
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