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Joy Milne: The Woman Who Can Smell Parkinson's Disease
0:00:03 Initial Question: In 2012, Joy Milne, a nurse, asked Parkinson's researcher Tilo Kunath if research was being done on why people with Parkinson's smell different, stating that her husband's scent changed after developing the disease.
0:01:32 Initial Skepticism: Kunath was initially unsure how to respond, but Joy's conviction and medical background made him consider her claim.
0:02:03 Second Opinion: Kunath sought a second opinion from analytical chemist Perdita Barran, who, while skeptical, acknowledged that dogs can smell cancer, and that scent based diagnosis was theoretically possible, though human olfactory capabilities are far inferior to canines.
0:03:09 The Experiment: Joy was invited to participate in an experiment at Edinburgh University, where she had to identify individuals with Parkinson's by smelling t-shirts worn by them.
0:05:50 Stunning Results: Joy correctly identified all six Parkinson's sufferers but had one "false positive" in the control group.
0:06:39 Initial Setback: Because of a blip in the trial and a small sample size, it was believed joy could have just gotten lucky and continued research was hindered because of it.
0:06:49 Investigating the Scent: The team investigated what Joy was smelling, initially assuming sweat, but Joy indicated the scent was strongest around the neckline, suggesting sebum (an oily substance produced by sebaceous glands) was the source.
0:08:05 Funding Challenges: Further research faced funding difficulties due to the unconventional nature of the project and Joy's "mistake" in the initial test.
0:08:51 Chance Meeting: Eight months later, Kunath met "Bill," the "false positive" from the experiment, at a Parkinson's conference. Bill had since been diagnosed with the disease.
0:09:56 Joy's Accuracy Confirmed: This revealed Joy had been 100% correct and had detected Parkinson's before it was clinically diagnosable.
0:11:08 Early Diagnosis: Joy had unknowingly noticed the scent change in her husband 12 years before his official diagnosis, highlighting the potential for early detection.
0:11:50 Game-Changer: Early detection is crucial in Parkinson's, as symptoms often appear after significant neuronal damage.
0:12:39 Renewed Research: With Joy's accuracy confirmed and press attention growing, funding became available for further research.
0:13:01 Sebum Analysis Barran used gas chromatography-mass spectrometry to analyze sebum samples, identifying three compounds (eicosane, hippuric acid, and octadecanal) elevated in Parkinson's sufferers.
0:13:33 Developing a Test Based on the analysis, a swab test, with an early accuracy rate of 97%, was created, holding great promise and is expected to be avaiable in hospitals around the world.
0:14:08 Other Diseases: Joy has also demonstrated the ability to smell Alzheimer's, tuberculosis, cancer, and diabetes.
0:15:47 Moral Dilemma: Joy faces a moral dilemma regarding informing people of potential diagnoses, ultimately choosing a non-disclosure policy.
0:16:33 The Mystery Remains: The exact reason for Joy's hyperosmia (heightened sense of smell) is unknown.
0:16:51 Husband's Legacy: Joy's husband, Les, passed away in 2015, but her discovery may revolutionize Parkinson's diagnosis and treatment.