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Study investigates smell loss and Parkinson's

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A study is to investigate whether an impairment of the sense of smell predicates the onset of Parkinson’s disease.
Researchers in the US are recruiting 15,000 close relatives of Parkinson’s disease sufferers to investigate whether smell tests could be used to screen for the condition.

Subjects will be asked to take the University of Pennsylvania’s Smell Identification Test, which tests for 40 common odours.

Typically, people can identify 35 smells, but people with Parkinson’s can usually identify less than 20.

Dr Kapil Sethi, of the Movement Disorders Program at the Medical College of Georgia, said: ‘We believe that if you’re a person who is going to develop Parkinson’s, you’ll also score lower than others.’
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