“My dog detected my cancer before the doctor did.”
Breanna Bortner shares that her dog, Mochi, began to show unusually affectionate behavior towards her breasts prior to her being diagnosed with stage 2B triple-negative breast cancer. This experience highlights the remarkable instincts some dogs have.
Interestingly, a recent study from the University of Bristol found that dogs can actually identify Parkinson’s disease before people even display symptoms. Prior research indicates that individuals with Parkinson’s tend to have an increased amount of sebum on their skin, which has a notably distinct odor.
The new study involved two dogs, a golden retriever named Bumper and a black Labrador named Peanut, who were trained with over 200 different odor samples. They were tested with 130 individuals diagnosed with Parkinson’s and 175 healthy individuals to see if they could correctly identify those with the disease.
The dogs were impressively accurate—showing sensitivity up to 80% and specificity as high as 98%, meaning they could reliably identify those affected by Parkinson’s.
“Dogs have olfactory signatures that are different from those with illness.”
This research, published in the Journal of Parkinson’s Disease on July 15th, was a collaboration between the University of Bristol and the University of Manchester, along with Medical Detection Dogs. Experts indicate that early screening for Parkinson’s is currently unavailable, though early warning signs may appear long before an official diagnosis.
Nicola Rooney, an associate professor at the Bristol School of Veterinary Medicine, noted that current research is focused on finding diagnostic biomarkers that could help in the early detection of Parkinson’s disease. There might be symptoms that lead us to an understanding years before the diagnosis actually occurs.
Claireguest, the Chief Science Officer of Medical Detection Dogs in the UK, emphasized the significance of these findings. She remarked that an early diagnosis could facilitate treatment, thereby slowing the progression of the disease and easing symptoms.
Furthermore, Perdita Barran, a professor specializing in mass spectrometry at the University of Manchester, remarked that this study points towards more accessible and faster methods for early detection. She believes non-invasive skin swabs could prove useful in diagnosing Parkinson’s disease.
Looking to the future, the research team plans to conduct long-term studies to further evaluate the abilities of dogs in detecting Parkinson’s prior to clinical diagnosis. The investigation was funded by both the Michael J. Fox Foundation and Parkinson’s UK.
