A woman who can detect Parkinson's through smell helps scientists develop a test for the disease.
Joy Milne knew her husband Les had Parkinson's more than 12 years before he was diagnosed
Further study will be required to validate the findings before they can develop a diagnostic test that could be used in clinics or by GPs.Joy, 72, knew her husband Les had Parkinson's more than 12 years before he was diagnosed when she identified a change in the way he smelled. The researchers analysed sebum - the oily substance on skin - which was collected by using a cotton swap on patients' backs, an area where it is less often washed away.
There is no cure and no definitive diagnostic test, with clinicians diagnosing patients by observing symptoms.
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