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Study: OCD, Tourette's not caused by strep
Tourette syndrome is a neurologic disorder characterized by repetitive, involuntary sounds and movements called tics. OCD is an anxiety disorder characterized by unwanted thoughts or obsessions and repetitive behaviors
"These results do not confirm other, smaller studies done in the United States, which found an association between strep infection and these brain disorders," study author Dr. Anette Schrag of the University College London said in a statement. "Streptococcal infection has previously also been linked to other, much rarer neuropsychiatric disorders."
The researchers looked at strep infection in a group of 255 people between the ages of 2-25 from a large, unselective population in Britain -- of whom 129 were diagnosed with OCD and 126 with Tourette syndrome and two groups with 4,519 people of similar ages without these disorders.
The study, published in the online issue of Neurology, found similar rates of strep exposure for all of the groups and concluded those with OCD or Tourettes were no more likely to have had possible strep infections than those without these disorders.
Copyright 2009 by United Press International
This news arrived on: 10/02/2009
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