On the Scent Trail of Parkinson’s Disease.

The article focuses on research into scent-based biomarkers that could be used to diagnose Parkinson's disease. It states that nurse Joy Milne collaborated with chemist Perdita Barran in a study concerning Milne's ability to smell scent differences in Parkinson's patients. It mentions the scent was caused by molecules found in sebum with four compounds associated with the odor Milne smelled in people with Parkinson's. It comments on the possible use of sebum in noninvasive disease diagnosis.