Scientists have come to an intriguing conclusion following a number of experiments connecting dogs and lung cancer. Various breeds of canines were subjected to a blended crowd, individuals who were suffering from lung cancer and those who were healthy. The conclusions of this experiment revealed that there is a unique scent linked to lung cancer patients that is detected by dogs. As outlined by a Verterinarynews.com report, a scientific journal released that a certain VOC (volatile organic compound) is present in the breath of a person suffering with lung cancer. The series of tests were executed between December 2009 and April 2010.

The study

This research involved in excess of 200 patients that were split into 3 different groups based on their health condition. Of the two hundred and twenty people participating in this research, a hundred and ten experienced a healthy body, sixty suffered from lung cancer and fifty patients had chronic obstructive pulmonary disease (COPD). People suspected of cancer or enduring other kinds of cancer were not included in this research. Different kinds of dogs that were included in this research were generally German Shepherds, and the remaining were Labrador retrievers and Australian Shepherds.

The results

Using the original speculation that distinct chemicals were produced in the breath of folks afflicted with lung cancer, these dogs were exposed to the smells of all patients. The success rate of this research was astonishing, with the dogs effectively recognizing signs of lung cancer over 7 out of ten times. The 71% hit rate suggested that canines are competent at determining lung cancer based on smell. Though the research study confirmed unbelievably accurate results, these canines were not particularly astute at detecting differences between scents given out by smoking and COPD.

The challenges posed

Even though the study began in December 2009, the 6 month long study had to be redone as the scientists noticed a key trait in the dogs. During the research, the scientists discovered that the canines were capable of memorizing scents of the various individuals. They then incorporated a new strategy making sure that each dog was exposed to every smell only one time throughout the study. It had been believed that the canines couldn't memorize smells of more than 200 people in a period of 6 months. The accuracy and precision of the results astonished the scientists as a single smell could contain over three thousand chemical compounds, indicating that dogs had the extraordinary capability of detecting lung cancer.

To delve deeper into this impressive finding, the scientists now intend to confirm this hypothesis by separating each smell and compound, and testing the dogs again. By means of advanced sensor technologies, scientists hope to arrive at a proven conclusion. Additionally they propose to examine whether canines are capable of uncovering other types of cancer and their accuracy. Presently, the scientists think that the smell these wonder Labrador retrievers and German Shepherds are detecting could originate from the lung cancer medication taken by the patients. Researchers want to arrive at a concrete conclusion after meticulously studying each scent given out by a chemical compound and each dog's ability to detect it.