Underdiagnosed Syndrome May Affect 5 Percent To 10 Percent Of U.S. Population:
Restless legs syndrome (RLS) may sound like something right out of a 1950s horror flick. And for some sufferers, it is. This affliction causes an irresistible urge to move the legs often accompanied by creepy-crawly sensations in the legs. The sensations are only relieved by movement, and become worse as the sun goes down. Night after night this sleeplessness occurs for the millions who suffer with RLS and their partners.
Because little is known about what causes RLS, researchers at Penn State College of Medicine and Johns Hopkins University went looking for answers. The team, led by James Connor, Ph.D., professor and interim chair, Department of Neuroscience and Anatomy, Penn State College of Medicine, performed the first-ever autopsy analysis of the brains of people with RLS. This research, presented today (June 5, 2003) at the Association of Professional Sleep Societies meeting in Chicago, uncovered a possible explanation for this syndrome.
“We found that, although there are no unique pathological changes in the brains of patients with RLS, it appears that cells in a portion of the mid-brain aren’t getting enough iron,” Connor said. “It was a relief to many that there was no neurodegeneration, or loss or damage of brain cells, like we see in Parkinson’s and Alzheimer’s disease.”
The discovery of a physical cause for this disorder establishes it as a sensory motor rather than a psychological disorder. Because cells aren’t lost or damaged but rather iron-deficient, there is more hope that treatments can be developed. ScienceDaily News