Earlier this week, I wrote about the depressing number of dogs affected by cancer. Many organizations and researchers are working towards finding a cure. Meanwhile, dogs may play an important part in curing humans.
Lung cancer is the the deadliest form of cancer worldwide, but current detection methods have been unreliable. Scientists are looking at a possible test for volatile organic compounds (VOCs), which have been linked to the presence of cancer, but it's been difficult to apply and no lung cancer-specific VOCs have been identified.
Researchers at Schillerhoehe Hospital in Germany decided to see if dogs could be used to identify the elusive lung cancer VOCs.
The study worked with 220 volunteers, including lung cancer patients, chronic obstructive pulmonary disease (COPD) patients, and healthy people. The dogs successfully identified 71 samples with lung cancer out of a possible 100. They also correctly detected 372 samples that did not have lung cancer out of a possible 400.
The researchers concluded that the dogs could detect lung cancer independently from COPD and tobacco smoke. The findings are a big step towards the accurate diagnosis of lung cancer.
I'm always amazed that despite all the technology in the world, sometimes the most powerful tool of all is a dog's nose!